CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available" lang="ga" dir="ltr"> <head> <meta charset="UTF-8"> <title>Optaic - Vicipéid</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )gawikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy", "wgMonthNames":["","Eanáir","Feabhra","Márta","Aibreán","Bealtaine","Meitheamh","Iúil","Lúnasa","Meán Fómhair","Deireadh Fómhair","Samhain","Nollaig"],"wgRequestId":"0762553a-280a-45ce-8a3f-0b589c04b2ec","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Optaic","wgTitle":"Optaic","wgCurRevisionId":1229912,"wgRevisionId":1229912,"wgArticleId":50541,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Fréamh an Eolais","Síolta a bhaineann le hoptaic","Optaic"],"wgPageViewLanguage":"ga","wgPageContentLanguage":"ga","wgPageContentModel":"wikitext","wgRelevantPageName":"Optaic","wgRelevantArticleId":50541,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0, "wgVisualEditor":{"pageLanguageCode":"ga","pageLanguageDir":"ltr","pageVariantFallbacks":"ga"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":3000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q14620","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options": "loading","mediawiki.codex.messagebox.styles":"ready","mediawiki.action.styles":"ready","mediawiki.interface.helpers.styles":"ready","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","mediawiki.page.media","site","mediawiki.page.ready","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022", "ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=ga&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cmediawiki.action.styles%7Cmediawiki.codex.messagebox.styles%7Cmediawiki.interface.helpers.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=ga&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=ga&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="noindex,nofollow,max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg/1200px-Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="1465"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg/800px-Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="976"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg/640px-Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="781"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Optaic - Vicipéid"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//ga.m.wikipedia.org/wiki/Optaic"> <link rel="alternate" type="application/x-wiki" title="Cuir in eagar" href="/w/index.php?title=Optaic&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Vicipéid (ga)"> <link rel="EditURI" type="application/rsd+xml" href="//ga.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://ga.wikipedia.org/wiki/Optaic"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.ga"> <link rel="alternate" type="application/atom+xml" title="Fotha Atom Vicipéid" href="/w/index.php?title=Speisialta:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Optaic rootpage-Optaic skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Príomh-roghchlár" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Príomh-roghchlár</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Príomh-roghchlár</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">folaigh</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Nascleanúint </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Pr%C3%ADomhleathanach" title="Tabhair cuairt ar an bpríomhleathanach [z]" accesskey="z"><span>Príomhleathanach</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Vicip%C3%A9id:L%C3%A1rionad_comhphobail" title="Maidir leis an tionscadal, cad is féidir leat a dhéanamh, conas rudaí a aimsiú"><span>Tairseach chomhphobail</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Vicip%C3%A9id:C%C3%BArsa%C3%AD_reatha" title="Faigh eolas cúlrach maidir le chursaí reatha"><span>Cúrsaí reatha</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Speisialta:RecentChanges" title="Liosta de na hathruithe is déanaí sa vicí [r]" accesskey="r"><span>Athruithe deireanacha</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Speisialta:Random" title="Lódáil leathanach randamach [x]" accesskey="x"><span>Leathanach fánach</span></a></li><li id="n-help" class="mw-list-item"><a href="https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents" title="An áit chun cabhair a fháil."><span>Cabhair</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Pr%C3%ADomhleathanach" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Vicipéid" src="/static/images/mobile/copyright/wikipedia-wordmark-ga.svg" style="width: 7.5em; height: 1.375em;"> <img class="mw-logo-tagline" alt="" src="/static/images/mobile/copyright/wikipedia-tagline-ga.svg" width="120" height="14" style="width: 7.5em; height: 0.875em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Speisialta:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Cuardaigh Vicipéid [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Cuardaigh</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Cuardaigh Vicipéid" aria-label="Cuardaigh Vicipéid" autocapitalize="sentences" title="Cuardaigh Vicipéid [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Speisialta:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Cuardaigh</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Do chuid uirlisí"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Cuma"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Cuma" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Cuma</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ga.wikipedia.org&uselang=ga" class=""><span>Síntiúis</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speisialta:CreateAccount&returnto=Optaic&returntoquery=oldid%3D1229912" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Cruthaigh cuntas</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speisialta:UserLogin&returnto=Optaic&returntoquery=oldid%3D1229912" title="Moltar duit logáil isteach, ach níl sé riachtanach. [o]" accesskey="o" class=""><span>Logáil isteach</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="More options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Do chuid uirlisí" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Do chuid uirlisí</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ga.wikipedia.org&uselang=ga"><span>Síntiúis</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Speisialta:CreateAccount&returnto=Optaic&returntoquery=oldid%3D1229912" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Cruthaigh cuntas</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Speisialta:UserLogin&returnto=Optaic&returntoquery=oldid%3D1229912" title="Moltar duit logáil isteach, ach níl sé riachtanach. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Logáil isteach</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Cabhair:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Speisialta:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Dréachtaí</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Speisialta:MyTalk" title="Plé maidir le na hathruithe a dhéantar ón seoladh IP seo [n]" accesskey="n"><span>Plé</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Clár ábhair" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Clár ábhair</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">folaigh</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Tús</div> </a> </li> <li id="toc-Stair" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Stair"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Stair</span> </div> </a> <ul id="toc-Stair-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Feidhmeanna" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Feidhmeanna"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Feidhmeanna</span> </div> </a> <ul id="toc-Feidhmeanna-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Féach_freisin" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Féach_freisin"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Féach freisin</span> </div> </a> <ul id="toc-Féach_freisin-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tagairtí" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tagairtí"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Tagairtí</span> </div> </a> <ul id="toc-Tagairtí-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Clár ábhair" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Optaic</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 110 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-110" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">110 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Optika" title="Optika – Afracáinis" lang="af" hreflang="af" data-title="Optika" data-language-autonym="Afrikaans" data-language-local-name="Afracáinis" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D8%B5%D8%B1%D9%8A%D8%A7%D8%AA" title="بصريات – Araibis" lang="ar" hreflang="ar" data-title="بصريات" data-language-autonym="العربية" data-language-local-name="Araibis" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/%C3%93ptica" title="Óptica – Astúiris" lang="ast" hreflang="ast" data-title="Óptica" data-language-autonym="Asturianu" data-language-local-name="Astúiris" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Optika" title="Optika – Asarbaiseáinis" lang="az" hreflang="az" data-title="Optika" data-language-autonym="Azərbaycanca" data-language-local-name="Asarbaiseáinis" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%A7%D9%88%D9%BE%D8%AA%DB%8C%DA%A9%D8%A7" title="اوپتیکا – South Azerbaijani" lang="azb" hreflang="azb" data-title="اوپتیکا" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Optik" title="Optik – Baváiris" lang="bar" hreflang="bar" data-title="Optik" data-language-autonym="Boarisch" data-language-local-name="Baváiris" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-bat-smg mw-list-item"><a href="https://bat-smg.wikipedia.org/wiki/Opt%C4%97ka" title="Optėka – Samogitian" lang="sgs" hreflang="sgs" data-title="Optėka" data-language-autonym="Žemaitėška" data-language-local-name="Samogitian" class="interlanguage-link-target"><span>Žemaitėška</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Optika" title="Optika – Central Bikol" lang="bcl" hreflang="bcl" data-title="Optika" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D1%8B%D0%BA%D0%B0" title="Оптыка – Bealarúisis" lang="be" hreflang="be" data-title="Оптыка" data-language-autonym="Беларуская" data-language-local-name="Bealarúisis" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D1%8B%D0%BA%D0%B0" title="Оптыка – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Оптыка" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Bulgáiris" lang="bg" hreflang="bg" data-title="Оптика" data-language-autonym="Български" data-language-local-name="Bulgáiris" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%B2%E0%A7%8B%E0%A6%95%E0%A6%AC%E0%A6%BF%E0%A6%9C%E0%A7%8D%E0%A6%9E%E0%A6%BE%E0%A6%A8" title="আলোকবিজ্ঞান – Beangáilis" lang="bn" hreflang="bn" data-title="আলোকবিজ্ঞান" data-language-autonym="বাংলা" data-language-local-name="Beangáilis" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%A0%E0%BD%BC%E0%BD%91%E0%BC%8B%E0%BD%A2%E0%BD%B2%E0%BD%82%E0%BC%8B%E0%BD%94%E0%BC%8B" title="འོད་རིག་པ་ – Tibéidis" lang="bo" hreflang="bo" data-title="འོད་རིག་པ་" data-language-autonym="བོད་ཡིག" data-language-local-name="Tibéidis" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-bs badge-Q17437796 badge-featuredarticle mw-list-item" title="featured article badge"><a href="https://bs.wikipedia.org/wiki/Optika" title="Optika – Boisnis" lang="bs" hreflang="bs" data-title="Optika" data-language-autonym="Bosanski" data-language-local-name="Boisnis" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/%C3%92ptica" title="Òptica – Catalóinis" lang="ca" hreflang="ca" data-title="Òptica" data-language-autonym="Català" data-language-local-name="Catalóinis" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%A6%DB%86%D9%BE%D8%AA%DB%8C%DA%A9" title="ئۆپتیک – Coirdis Lárnach" lang="ckb" hreflang="ckb" data-title="ئۆپتیک" data-language-autonym="کوردی" data-language-local-name="Coirdis Lárnach" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Optika" title="Optika – Seicis" lang="cs" hreflang="cs" data-title="Optika" data-language-autonym="Čeština" data-language-local-name="Seicis" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Suvaisis" lang="cv" hreflang="cv" data-title="Оптика" data-language-autonym="Чӑвашла" data-language-local-name="Suvaisis" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Opteg" title="Opteg – Breatnais" lang="cy" hreflang="cy" data-title="Opteg" data-language-autonym="Cymraeg" data-language-local-name="Breatnais" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Optik" title="Optik – Danmhairgis" lang="da" hreflang="da" data-title="Optik" data-language-autonym="Dansk" data-language-local-name="Danmhairgis" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Optik" title="Optik – Gearmáinis" lang="de" hreflang="de" data-title="Optik" data-language-autonym="Deutsch" data-language-local-name="Gearmáinis" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9F%CF%80%CF%84%CE%B9%CE%BA%CE%AE" title="Οπτική – Gréigis" lang="el" hreflang="el" data-title="Οπτική" data-language-autonym="Ελληνικά" data-language-local-name="Gréigis" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Optics" title="Optics – Béarla" lang="en" hreflang="en" data-title="Optics" data-language-autonym="English" data-language-local-name="Béarla" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Optiko" title="Optiko – Esperanto" lang="eo" hreflang="eo" data-title="Optiko" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/%C3%93ptica" title="Óptica – Spáinnis" lang="es" hreflang="es" data-title="Óptica" data-language-autonym="Español" data-language-local-name="Spáinnis" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Optika" title="Optika – Eastóinis" lang="et" hreflang="et" data-title="Optika" data-language-autonym="Eesti" data-language-local-name="Eastóinis" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Optika" title="Optika – Bascais" lang="eu" hreflang="eu" data-title="Optika" data-language-autonym="Euskara" data-language-local-name="Bascais" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-ext mw-list-item"><a href="https://ext.wikipedia.org/wiki/%C3%93tica" title="Ótica – Extremaduran" lang="ext" hreflang="ext" data-title="Ótica" data-language-autonym="Estremeñu" data-language-local-name="Extremaduran" class="interlanguage-link-target"><span>Estremeñu</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%86%D9%88%D8%B1%D8%B4%D9%86%D8%A7%D8%B3%DB%8C" title="نورشناسی – Peirsis" lang="fa" hreflang="fa" data-title="نورشناسی" data-language-autonym="فارسی" data-language-local-name="Peirsis" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Optiikka" title="Optiikka – Fionlainnis" lang="fi" hreflang="fi" data-title="Optiikka" data-language-autonym="Suomi" data-language-local-name="Fionlainnis" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/Valgus%C3%B5oppus" title="Valgusõoppus – Võro" lang="vro" hreflang="vro" data-title="Valgusõoppus" data-language-autonym="Võro" data-language-local-name="Võro" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Optique" title="Optique – Fraincis" lang="fr" hreflang="fr" data-title="Optique" data-language-autonym="Français" data-language-local-name="Fraincis" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Optik" title="Optik – Freaslainnis an Tuaiscirt" lang="frr" hreflang="frr" data-title="Optik" data-language-autonym="Nordfriisk" data-language-local-name="Freaslainnis an Tuaiscirt" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-fur mw-list-item"><a href="https://fur.wikipedia.org/wiki/Otiche" title="Otiche – Friúilis" lang="fur" hreflang="fur" data-title="Otiche" data-language-autonym="Furlan" data-language-local-name="Friúilis" class="interlanguage-link-target"><span>Furlan</span></a></li><li class="interlanguage-link interwiki-gcr mw-list-item"><a href="https://gcr.wikipedia.org/wiki/%C3%92ptik" title="Òptik – Guianan Creole" lang="gcr" hreflang="gcr" data-title="Òptik" data-language-autonym="Kriyòl gwiyannen" data-language-local-name="Guianan Creole" class="interlanguage-link-target"><span>Kriyòl gwiyannen</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/%C3%93ptica" title="Óptica – Gailísis" lang="gl" hreflang="gl" data-title="Óptica" data-language-autonym="Galego" data-language-local-name="Gailísis" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%90%D7%95%D7%A4%D7%98%D7%99%D7%A7%D7%94" title="אופטיקה – Eabhrais" lang="he" hreflang="he" data-title="אופטיקה" data-language-autonym="עברית" data-language-local-name="Eabhrais" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B6%E0%A4%BF%E0%A4%95%E0%A5%80" title="प्रकाशिकी – Hiondúis" lang="hi" hreflang="hi" data-title="प्रकाशिकी" data-language-autonym="हिन्दी" data-language-local-name="Hiondúis" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Optika" title="Optika – Cróitis" lang="hr" hreflang="hr" data-title="Optika" data-language-autonym="Hrvatski" data-language-local-name="Cróitis" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Optika" title="Optika – Ungáiris" lang="hu" hreflang="hu" data-title="Optika" data-language-autonym="Magyar" data-language-local-name="Ungáiris" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%95%D5%BA%D5%BF%D5%AB%D5%AF%D5%A1" title="Օպտիկա – Airméinis" lang="hy" hreflang="hy" data-title="Օպտիկա" data-language-autonym="Հայերեն" data-language-local-name="Airméinis" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Optica" title="Optica – Interlingua" lang="ia" hreflang="ia" data-title="Optica" data-language-autonym="Interlingua" data-language-local-name="Interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Optika" title="Optika – Indinéisis" lang="id" hreflang="id" data-title="Optika" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indinéisis" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Optiko" title="Optiko – Ídis" lang="io" hreflang="io" data-title="Optiko" data-language-autonym="Ido" data-language-local-name="Ídis" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Lj%C3%B3sfr%C3%A6%C3%B0i" title="Ljósfræði – Íoslainnis" lang="is" hreflang="is" data-title="Ljósfræði" data-language-autonym="Íslenska" data-language-local-name="Íoslainnis" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Ottica" title="Ottica – Iodáilis" lang="it" hreflang="it" data-title="Ottica" data-language-autonym="Italiano" data-language-local-name="Iodáilis" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%85%89%E5%AD%A6" title="光学 – Seapáinis" lang="ja" hreflang="ja" data-title="光学" data-language-autonym="日本語" data-language-local-name="Seapáinis" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Optika" title="Optika – Iáivis" lang="jv" hreflang="jv" data-title="Optika" data-language-autonym="Jawa" data-language-local-name="Iáivis" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9D%E1%83%9E%E1%83%A2%E1%83%98%E1%83%99%E1%83%90" title="ოპტიკა – Seoirsis" lang="ka" hreflang="ka" data-title="ოპტიკა" data-language-autonym="ქართული" data-language-local-name="Seoirsis" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Casaicis" lang="kk" hreflang="kk" data-title="Оптика" data-language-autonym="Қазақша" data-language-local-name="Casaicis" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%A6%E0%B3%83%E0%B2%97%E0%B3%8D%E0%B2%B5%E0%B2%BF%E0%B2%9C%E0%B3%8D%E0%B2%9E%E0%B2%BE%E0%B2%A8" title="ದೃಗ್ವಿಜ್ಞಾನ – Cannadais" lang="kn" hreflang="kn" data-title="ದೃಗ್ವಿಜ್ಞಾನ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="Cannadais" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B4%91%ED%95%99" title="광학 – Cóiréis" lang="ko" hreflang="ko" data-title="광학" data-language-autonym="한국어" data-language-local-name="Cóiréis" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Opt%C3%AEk" title="Optîk – Coirdis" lang="ku" hreflang="ku" data-title="Optîk" data-language-autonym="Kurdî" data-language-local-name="Coirdis" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Cirgisis" lang="ky" hreflang="ky" data-title="Оптика" data-language-autonym="Кыргызча" data-language-local-name="Cirgisis" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Optica" title="Optica – Laidin" lang="la" hreflang="la" data-title="Optica" data-language-autonym="Latina" data-language-local-name="Laidin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Optik" title="Optik – Lucsambuirgis" lang="lb" hreflang="lb" data-title="Optik" data-language-autonym="Lëtzebuergesch" data-language-local-name="Lucsambuirgis" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Optika" title="Optika – Liotuáinis" lang="lt" hreflang="lt" data-title="Optika" data-language-autonym="Lietuvių" data-language-local-name="Liotuáinis" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Optika" title="Optika – Laitvis" lang="lv" hreflang="lv" data-title="Optika" data-language-autonym="Latviešu" data-language-local-name="Laitvis" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk badge-Q17437796 badge-featuredarticle mw-list-item" title="featured article badge"><a href="https://mk.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Macadóinis" lang="mk" hreflang="mk" data-title="Оптика" data-language-autonym="Македонски" data-language-local-name="Macadóinis" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AA%E0%B5%8D%E0%B4%B0%E0%B4%95%E0%B4%BE%E0%B4%B6%E0%B4%B6%E0%B4%BE%E0%B4%B8%E0%B5%8D%E0%B4%A4%E0%B5%8D%E0%B4%B0%E0%B4%82" title="പ്രകാശശാസ്ത്രം – Mailéalaimis" lang="ml" hreflang="ml" data-title="പ്രകാശശാസ്ത്രം" data-language-autonym="മലയാളം" data-language-local-name="Mailéalaimis" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA" title="Оптик – Mongóilis" lang="mn" hreflang="mn" data-title="Оптик" data-language-autonym="Монгол" data-language-local-name="Mongóilis" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Optik" title="Optik – Malaeis" lang="ms" hreflang="ms" data-title="Optik" data-language-autonym="Bahasa Melayu" data-language-local-name="Malaeis" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mwl mw-list-item"><a href="https://mwl.wikipedia.org/wiki/%C3%93tica" title="Ótica – Mioraindéis" lang="mwl" hreflang="mwl" data-title="Ótica" data-language-autonym="Mirandés" data-language-local-name="Mioraindéis" class="interlanguage-link-target"><span>Mirandés</span></a></li><li class="interlanguage-link interwiki-new mw-list-item"><a href="https://new.wikipedia.org/wiki/%E0%A4%85%E0%A4%AA%E0%A5%8D%E0%A4%A4%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%B8" title="अप्तिक्स – Néamharais" lang="new" hreflang="new" data-title="अप्तिक्स" data-language-autonym="नेपाल भाषा" data-language-local-name="Néamharais" class="interlanguage-link-target"><span>नेपाल भाषा</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Optica" title="Optica – Ollainnis" lang="nl" hreflang="nl" data-title="Optica" data-language-autonym="Nederlands" data-language-local-name="Ollainnis" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Optikk" title="Optikk – Nua-Ioruais" lang="nn" hreflang="nn" data-title="Optikk" data-language-autonym="Norsk nynorsk" data-language-local-name="Nua-Ioruais" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Optikk" title="Optikk – Bocmál" lang="nb" hreflang="nb" data-title="Optikk" data-language-autonym="Norsk bokmål" data-language-local-name="Bocmál" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Optica" title="Optica – Ocsatáinis" lang="oc" hreflang="oc" data-title="Optica" data-language-autonym="Occitan" data-language-local-name="Ocsatáinis" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AA%E0%A9%8D%E0%A8%B0%E0%A8%95%E0%A8%BE%E0%A8%B8%E0%A8%BC_%E0%A8%B5%E0%A8%BF%E0%A8%97%E0%A8%BF%E0%A8%86%E0%A8%A8" title="ਪ੍ਰਕਾਸ਼ ਵਿਗਿਆਨ – Puinseáibis" lang="pa" hreflang="pa" data-title="ਪ੍ਰਕਾਸ਼ ਵਿਗਿਆਨ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="Puinseáibis" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Optyka" title="Optyka – Polainnis" lang="pl" hreflang="pl" data-title="Optyka" data-language-autonym="Polski" data-language-local-name="Polainnis" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/%C3%92tica" title="Òtica – Piedmontese" lang="pms" hreflang="pms" data-title="Òtica" data-language-autonym="Piemontèis" data-language-local-name="Piedmontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D8%AF_%D9%86%D9%88%D8%B1_%D9%81%D8%B2%DB%8C%DA%A9" title="د نور فزیک – Paistis" lang="ps" hreflang="ps" data-title="د نور فزیک" data-language-autonym="پښتو" data-language-local-name="Paistis" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/%C3%93ptica" title="Óptica – Portaingéilis" lang="pt" hreflang="pt" data-title="Óptica" data-language-autonym="Português" data-language-local-name="Portaingéilis" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Optic%C4%83" title="Optică – Rómáinis" lang="ro" hreflang="ro" data-title="Optică" data-language-autonym="Română" data-language-local-name="Rómáinis" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Rúisis" lang="ru" hreflang="ru" data-title="Оптика" data-language-autonym="Русский" data-language-local-name="Rúisis" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D1%96%D0%BA%D0%B0" title="Оптіка – Rusyn" lang="rue" hreflang="rue" data-title="Оптіка" data-language-autonym="Русиньскый" data-language-local-name="Rusyn" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sat mw-list-item"><a href="https://sat.wikipedia.org/wiki/%E1%B1%A2%E1%B1%9F%E1%B1%A8%E1%B1%A5%E1%B1%9F%E1%B1%9E_%E1%B1%A5%E1%B1%9F%E1%B1%AC%E1%B1%AE%E1%B1%A5" title="ᱢᱟᱨᱥᱟᱞ ᱥᱟᱬᱮᱥ – Santáilis" lang="sat" hreflang="sat" data-title="ᱢᱟᱨᱥᱟᱞ ᱥᱟᱬᱮᱥ" data-language-autonym="ᱥᱟᱱᱛᱟᱲᱤ" data-language-local-name="Santáilis" class="interlanguage-link-target"><span>ᱥᱟᱱᱛᱟᱲᱤ</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/%C3%92ttica" title="Òttica – Sicilis" lang="scn" hreflang="scn" data-title="Òttica" data-language-autonym="Sicilianu" data-language-local-name="Sicilis" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%A8%D8%B5%D8%B1%D9%8A%D8%A7%D8%AA" title="بصريات – Sindis" lang="sd" hreflang="sd" data-title="بصريات" data-language-autonym="سنڌي" data-language-local-name="Sindis" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Optika" title="Optika – Seirbea-Chróitis" lang="sh" hreflang="sh" data-title="Optika" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Seirbea-Chróitis" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-shi mw-list-item"><a href="https://shi.wikipedia.org/wiki/Tasni%E1%BA%93%E1%B9%9Bi" title="Tasniẓṛi – Tachelhit" lang="shi" hreflang="shi" data-title="Tasniẓṛi" data-language-autonym="Taclḥit" data-language-local-name="Tachelhit" class="interlanguage-link-target"><span>Taclḥit</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%B4%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B6%9A%E0%B7%8F%E0%B7%81_%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80" title="ප්‍රකාශ විද්‍යාව – Siolóinis" lang="si" hreflang="si" data-title="ප්‍රකාශ විද්‍යාව" data-language-autonym="සිංහල" data-language-local-name="Siolóinis" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Optics" title="Optics – Simple English" lang="en-simple" hreflang="en-simple" data-title="Optics" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Optika_(odbor)" title="Optika (odbor) – Slóvaicis" lang="sk" hreflang="sk" data-title="Optika (odbor)" data-language-autonym="Slovenčina" data-language-local-name="Slóvaicis" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Optika" title="Optika – Slóivéinis" lang="sl" hreflang="sl" data-title="Optika" data-language-autonym="Slovenščina" data-language-local-name="Slóivéinis" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Araga" title="Araga – Somáilis" lang="so" hreflang="so" data-title="Araga" data-language-autonym="Soomaaliga" data-language-local-name="Somáilis" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Optika" title="Optika – Albáinis" lang="sq" hreflang="sq" data-title="Optika" data-language-autonym="Shqip" data-language-local-name="Albáinis" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Seirbis" lang="sr" hreflang="sr" data-title="Оптика" data-language-autonym="Српски / srpski" data-language-local-name="Seirbis" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-stq mw-list-item"><a href="https://stq.wikipedia.org/wiki/Optik" title="Optik – Saterland Frisian" lang="stq" hreflang="stq" data-title="Optik" data-language-autonym="Seeltersk" data-language-local-name="Saterland Frisian" class="interlanguage-link-target"><span>Seeltersk</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Optik" title="Optik – Sualainnis" lang="sv" hreflang="sv" data-title="Optik" data-language-autonym="Svenska" data-language-local-name="Sualainnis" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%92%E0%AE%B3%E0%AE%BF%E0%AE%AF%E0%AE%BF%E0%AE%AF%E0%AE%B2%E0%AF%8D" title="ஒளியியல் – Tamailis" lang="ta" hreflang="ta" data-title="ஒளியியல்" data-language-autonym="தமிழ்" data-language-local-name="Tamailis" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te badge-Q70893996 mw-list-item" title=""><a href="https://te.wikipedia.org/wiki/%E0%B0%95%E0%B0%BE%E0%B0%82%E0%B0%A4%E0%B0%BF_%E0%B0%B6%E0%B0%BE%E0%B0%B8%E0%B1%8D%E0%B0%A4%E0%B1%8D%E0%B0%B0%E0%B0%82" title="కాంతి శాస్త్రం – Teileagúis" lang="te" hreflang="te" data-title="కాంతి శాస్త్రం" data-language-autonym="తెలుగు" data-language-local-name="Teileagúis" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Taidsícis" lang="tg" hreflang="tg" data-title="Оптика" data-language-autonym="Тоҷикӣ" data-language-local-name="Taidsícis" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%97%E0%B8%B1%E0%B8%A8%E0%B8%99%E0%B8%A8%E0%B8%B2%E0%B8%AA%E0%B8%95%E0%B8%A3%E0%B9%8C" title="ทัศนศาสตร์ – Téalainnis" lang="th" hreflang="th" data-title="ทัศนศาสตร์" data-language-autonym="ไทย" data-language-local-name="Téalainnis" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Optika" title="Optika – Tagálaigis" lang="tl" hreflang="tl" data-title="Optika" data-language-autonym="Tagalog" data-language-local-name="Tagálaigis" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Optik" title="Optik – Tuircis" lang="tr" hreflang="tr" data-title="Optik" data-language-autonym="Türkçe" data-language-local-name="Tuircis" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt badge-Q17437798 badge-goodarticle mw-list-item" title="good article badge"><a href="https://tt.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Tatairis" lang="tt" hreflang="tt" data-title="Оптика" data-language-autonym="Татарча / tatarça" data-language-local-name="Tatairis" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9E%D0%BF%D1%82%D0%B8%D0%BA%D0%B0" title="Оптика – Úcráinis" lang="uk" hreflang="uk" data-title="Оптика" data-language-autonym="Українська" data-language-local-name="Úcráinis" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%A8%D8%B5%D8%B1%DB%8C%D8%A7%D8%AA" title="بصریات – Urdúis" lang="ur" hreflang="ur" data-title="بصریات" data-language-autonym="اردو" data-language-local-name="Urdúis" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Optika" title="Optika – Úisbéiceastáinis" lang="uz" hreflang="uz" data-title="Optika" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Úisbéiceastáinis" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vep mw-list-item"><a href="https://vep.wikipedia.org/wiki/Optik" title="Optik – Veps" lang="vep" hreflang="vep" data-title="Optik" data-language-autonym="Vepsän kel’" data-language-local-name="Veps" class="interlanguage-link-target"><span>Vepsän kel’</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Quang_h%E1%BB%8Dc" title="Quang học – Vítneaimis" lang="vi" hreflang="vi" data-title="Quang học" data-language-autonym="Tiếng Việt" data-language-local-name="Vítneaimis" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Optika" title="Optika – Uairéis" lang="war" hreflang="war" data-title="Optika" data-language-autonym="Winaray" data-language-local-name="Uairéis" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wo mw-list-item"><a href="https://wo.wikipedia.org/wiki/Ngiste" title="Ngiste – Volaifis" lang="wo" hreflang="wo" data-title="Ngiste" data-language-autonym="Wolof" data-language-local-name="Volaifis" class="interlanguage-link-target"><span>Wolof</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%85%89%E5%AD%A6" title="光学 – Sínis Wu" lang="wuu" hreflang="wuu" data-title="光学" data-language-autonym="吴语" data-language-local-name="Sínis Wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%90%D7%A4%D7%98%D7%99%D7%A7" title="אפטיק – Giúdais" lang="yi" hreflang="yi" data-title="אפטיק" data-language-autonym="ייִדיש" data-language-local-name="Giúdais" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zgh mw-list-item"><a href="https://zgh.wikipedia.org/wiki/%E2%B5%9C%E2%B4%B0%E2%B5%99%E2%B5%8F%E2%B5%89%E2%B5%A5%E2%B5%95%E2%B5%89" title="ⵜⴰⵙⵏⵉⵥⵕⵉ – Tamaisis Chaighdeánach Mharacó" lang="zgh" hreflang="zgh" data-title="ⵜⴰⵙⵏⵉⵥⵕⵉ" data-language-autonym="ⵜⴰⵎⴰⵣⵉⵖⵜ ⵜⴰⵏⴰⵡⴰⵢⵜ" data-language-local-name="Tamaisis Chaighdeánach Mharacó" class="interlanguage-link-target"><span>ⵜⴰⵎⴰⵣⵉⵖⵜ ⵜⴰⵏⴰⵡⴰⵢⵜ</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%85%89%E5%AD%A6" title="光学 – Sínis" lang="zh" hreflang="zh" data-title="光学" data-language-autonym="中文" data-language-local-name="Sínis" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%85%89%E5%AD%B8" title="光學 – Cantainis" lang="yue" hreflang="yue" data-title="光學" data-language-autonym="粵語" data-language-local-name="Cantainis" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zu mw-list-item"><a href="https://zu.wikipedia.org/wiki/Ezomkhanyizo" title="Ezomkhanyizo – Súlúis" lang="zu" hreflang="zu" data-title="Ezomkhanyizo" data-language-autonym="IsiZulu" data-language-local-name="Súlúis" class="interlanguage-link-target"><span>IsiZulu</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q14620#sitelinks-wikipedia" title="Athraigh na naisc idirtheanga" class="wbc-editpage">Athraigh naisc</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Ainmspásanna"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Optaic" title="Féach ar an leathanach ábhair [c]" accesskey="c"><span>Alt</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Pl%C3%A9:Optaic&action=edit&redlink=1" rel="discussion" class="new" title="Plé mar gheall ar an leathanach inneachair (níl an leathanach ann) [t]" accesskey="t"><span>Plé</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Gaeilge</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Radhairc"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Optaic"><span>Léigh</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Optaic&veaction=edit" title="Cuir an leathanach seo in eagar [v]" accesskey="v"><span>Cuir in eagar</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Optaic&action=edit" title="Edit the source code of this page [e]" accesskey="e"><span>Cuir foinse in eagar</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Optaic&action=history" title="Leagain stairiúla den leathanach seo. [h]" accesskey="h"><span>Féach ar stair</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Uirlisí" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Uirlisí</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Uirlisí</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">folaigh</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Gníomhartha </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Optaic"><span>Léigh</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Optaic&veaction=edit" title="Cuir an leathanach seo in eagar [v]" accesskey="v"><span>Cuir in eagar</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Optaic&action=edit" title="Edit the source code of this page [e]" accesskey="e"><span>Cuir foinse in eagar</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Optaic&action=history"><span>Féach ar stair</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Ginearálta </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speisialta:WhatLinksHere/Optaic" title="Liosta de gach leathanach sa vicí ina bhfuil nasc chuig an leathanach seo [j]" accesskey="j"><span>Cad a nascann anseo</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speisialta:RecentChangesLinked/Optaic" rel="nofollow" title="Na hathruithe is déanaí ar leathanaigh a nascaíonn chuig an leathanach seo [k]" accesskey="k"><span>Athruithe gaolmhara</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Speisialta:SpecialPages" title="Liosta de gach leathanach speisialta [q]" accesskey="q"><span>Leathanaigh speisialta</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Optaic&oldid=1229912" title="Nasc buan leis an leagan seo den leathanach seo"><span>Nasc buan</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Optaic&action=info" title="More information about this page"><span>Eolas faoin leathanach</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Speisialta:CiteThisPage&page=Optaic&id=1229912&wpFormIdentifier=titleform" title="Eolas maidir le conas an leathanach seo a lua"><span>Luaigh an lch seo</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Speisialta:UrlShortener&url=https%3A%2F%2Fga.wikipedia.org%2Fw%2Findex.php%3Ftitle%3DOptaic%26oldid%3D1229912"><span>Faigh URL giorraithe</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Speisialta:QrCode&url=https%3A%2F%2Fga.wikipedia.org%2Fw%2Findex.php%3Ftitle%3DOptaic%26oldid%3D1229912"><span>Íoslódáil cód QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Priontáil/easpórtáil </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Speisialta:Book&bookcmd=book_creator&referer=Optaic"><span>Cruthaigh leabhar</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Speisialta:DownloadAsPdf&page=Optaic&action=show-download-screen"><span>Íoslódáil mar PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Optaic&printable=yes" title="Leagan inphriontáilte an leathanaigh seo [p]" accesskey="p"><span>Leagan inphriontáilte</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> I dtionscadail eile </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Optics" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q14620" title="Link to connected data repository item [g]" accesskey="g"><span>Mír Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Cuma"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Cuma</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">folaigh</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Ón Vicipéid, an chiclipéid shaor.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><div class="cdx-message cdx-message--block cdx-message--warning mw-revision"><span class="cdx-message__icon"></span><div class="cdx-message__content"><div id="mw-revision-info">Leagan ó 01:17, 25 Lúnasa 2024 le <a href="/wiki/%C3%9As%C3%A1ideoir:HusseyBot" class="mw-userlink" title="Úsáideoir:HusseyBot" data-mw-revid="1229912"><bdi>HusseyBot</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/Pl%C3%A9_%C3%BAs%C3%A1ideora:HusseyBot" class="mw-usertoollinks-talk" title="Plé úsáideora:HusseyBot">plé</a> | <a href="/wiki/Speisialta:Contributions/HusseyBot" class="mw-usertoollinks-contribs" title="Speisialta:Contributions/HusseyBot">dréachtaí</a>)</span></div><div id="mw-revision-nav">(<a href="/w/index.php?title=Optaic&diff=prev&oldid=1229912" title="Optaic">diff</a>) <a href="/w/index.php?title=Optaic&direction=prev&oldid=1229912" title="Optaic">← An leasú roimhe seo</a> | Leagan reatha (diff) | An chéad leasú eile → (diff)</div></div></div></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="ga" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/%C3%8Domh%C3%A1:Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg/220px-Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg" decoding="async" width="220" height="268" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg/330px-Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg/440px-Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg 2x" data-file-width="2309" data-file-height="2818" /></a><figcaption>San optaic déantar staidéar ar scaipeadh <a href="/wiki/Solas" title="Solas">solais</a>.</figcaption></figure> <p>Is éard is <b>optaic</b> ann staidéar ar <a href="/wiki/Solas" title="Solas">sholas</a> is na hionstraimí atá bunaithe air. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Stair">Stair</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Optaic&veaction=edit&section=1" title="Cuir rannán in eagar: Stair" class="mw-editsection-visualeditor"><span>cuir in eagar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Optaic&action=edit&section=1" title="Edit section's source code: Stair"><span>athraigh foinse</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ar siúl le 4,000 bliain ar a laghad. Bhí scátháin ag na hÉigiptigh. Bhí teoiricí ar an solas ag na Gréagaigh, agus lionsaí (gloiní dóite). Leag <a href="/wiki/Eoicl%C3%ADd%C3%A9as" title="Eoiclídéas">Eoiclídéas</a> síos dlíthe an fhrithchaithimh timpeall 300 RC. B'ábhar staidéir é sa Choláiste Impiriúil <a href="/wiki/M%C3%ADochaine" title="Míochaine">Míochaine</a> sa <a href="/wiki/An_tS%C3%ADn" title="An tSín">tSín</a> ón 7ú céad. Tá úsáid lionsaí chun radharc na súl a cheartú luaite le <a href="/wiki/Roger_Bacon" title="Roger Bacon">Roger Bacon</a> sa <a href="/wiki/13%C3%BA_haois" title="13ú haois">13ú céad</a>. Cheap <a href="/wiki/Galileo_Galilei" title="Galileo Galilei">Galileo</a> ceann de na teileascóip is luaithe i <a href="/wiki/1609" title="1609">1609</a>. </p><p>Thóg <a href="/wiki/Isaac_Newton" title="Isaac Newton">Newton</a> an chéad <a href="/wiki/Teileasc%C3%B3p" title="Teileascóp">teileascóp</a> frithchaite i <a href="/wiki/1668" title="1668">1668</a>. Roimhe sin, timpeall <a href="/wiki/1590" title="1590">1590</a>, cheap déantóir Ollannach <a href="/wiki/Sp%C3%A9acla%C3%AD" title="Spéaclaí">spéaclaí</a>, Zacharias Janssen (<a href="/wiki/1588" title="1588">1588</a>-<a href="/wiki/1632" title="1632">1632</a>), an <a href="/wiki/Micreasc%C3%B3p_solais" title="Micreascóp solais">micreascóp</a> comhshuite le dhá eilimint optúil nó níos mó. </p><p>Ón <a href="/wiki/17%C3%BA_haois" title="17ú haois">17ú céad</a> ar aghaidh tháinig optaic gheoiméadrach chun cinn chun cur síos ar <a href="/wiki/Frithchaitheamh" title="Frithchaitheamh">fhrithchaitheamh</a> is <a href="/wiki/Athraonadh" title="Athraonadh">athraonadh</a> trí sholas a shamhlú ina ghathanna a thaistealaíonn ina línte díreacha. Ach ag deireadh an chéid chéanna tugadh <a href="/wiki/D%C3%ADraonadh" title="Díraonadh">díraonadh</a> solais faoi deara, rud a chiallaigh go raibh tréithe tonnacha ag solas. </p><p><a href="/wiki/Cosant%C3%B3ir" title="Cosantóir">Cosantóir</a> luath ar theoiric thonnach an tsolais ab ea an <a href="/wiki/Fisic" title="Fisic">fisiceoir</a> Ollannach <a href="/wiki/Christiaan_Huygens" title="Christiaan Huygens">Christiaan Huygens</a>, ach chloígh Newton leis an tseanteoiric, an teoiric choirpíneach, go raibh solas déanta as páirteagail nó coirpíní. Faoi 1804 léirigh <a href="/wiki/Thomas_Young" title="Thomas Young">Thomas Young</a> <a href="/wiki/Trasna%C3%ADocht" title="Trasnaíocht">trasnaíocht</a> solais, ag cruthú gur thonn é. </p><p>Roimhe sin bhí Huygens is Newton tar éis polarú solais le <a href="/wiki/Criostal" title="Criostal">criostal</a> cailcíte a bhrath, ach níorbh fhéidir leo an feiniméan a mhíniú. </p><p>Bhí an míniú le fáil ón tuiscint gur trasthonn ab ea solas. Faoi seo tuigtear gur áisiúil an dá dhearcadh ar nádúr an tsolais, an teoiric choirpíneach, cuimsithe san optaic gheoiméadrach, agus an teoiric thonnach, cuimsithe san optaic fhisiciúil. </p> <div class="mw-heading mw-heading2"><h2 id="Feidhmeanna">Feidhmeanna</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Optaic&veaction=edit&section=2" title="Cuir rannán in eagar: Feidhmeanna" class="mw-editsection-visualeditor"><span>cuir in eagar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Optaic&action=edit&section=2" title="Edit section's source code: Feidhmeanna"><span>athraigh foinse</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>I measc na bhfeidhmeanna is nua-aoisí san optaic tá snáithíní optúla is a n-úsáidí sa <a href="/wiki/Teileachumars%C3%A1id" title="Teileachumarsáid">teileachumarsáid</a>, eilimintí optúla loighce, na ríomhairí optúla atá á bhforbairt is á dtuar, anailís Fourier i bpróiseáil is <a href="/wiki/Scagth%C3%A1st%C3%A1il" title="Scagthástáil">scagthástáil</a> íomhánna, <a href="/wiki/Optaic_oiri%C3%BAnaitheach" title="Optaic oiriúnaitheach">optaic oiriúnaitheach</a>, <a href="/wiki/L%C3%A9asar" title="Léasar">léasair</a>, <a href="/wiki/Holagrafa%C3%ADocht" title="Holagrafaíocht">holagrafaíocht</a>, olltáirgeadh lionsaí casta plaisteacha, agus a lán eile.<sup id="cite_ref-FreamhanEolais_1-0" class="reference"><a href="#cite_note-FreamhanEolais-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Féach_freisin"><span id="F.C3.A9ach_freisin"></span>Féach freisin</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Optaic&veaction=edit&section=3" title="Cuir rannán in eagar: Féach freisin" class="mw-editsection-visualeditor"><span>cuir in eagar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Optaic&action=edit&section=3" title="Edit section's source code: Féach freisin"><span>athraigh foinse</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Prionsabal_Huygens" class="mw-redirect" title="Prionsabal Huygens">Prionsabal Huygens</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Tagairtí"><span id="Tagairt.C3.AD"></span>Tagairtí</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Optaic&veaction=edit&section=4" title="Cuir rannán in eagar: Tagairtí" class="mw-editsection-visualeditor"><span>cuir in eagar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Optaic&action=edit&section=4" title="Edit section's source code: Tagairtí"><span>athraigh foinse</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1086221">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-FreamhanEolais-1"><span class="mw-cite-backlink"><a href="#cite_ref-FreamhanEolais_1-0">↑</a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1126443">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:#d33}.mw-parser-output .cs1-visible-error{color:#d33}.mw-parser-output .cs1-maint{display:none;color:#3a3;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}</style><cite id="CITEREFHussey2011" class="citation encyclopaedia cs1"><a href="/wiki/Matthew_Hussey" title="Matthew Hussey">Hussey, Matt</a> (2011). "Optaic". <i><a href="/wiki/Fr%C3%A9amh_an_Eolais" title="Fréamh an Eolais">Fréamh an Eolais</a></i>. <a href="/wiki/Coisc%C3%A9im" title="Coiscéim">Coiscéim</a>. p. 497.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Optaic&rft.btitle=Fr%C3%A9amh+an+Eolais&rft.pages=497&rft.pub=Coisc%C3%A9im&rft.date=2011&rft.aulast=Hussey&rft.aufirst=Matt&rfr_id=info%3Asid%2Fga.wikipedia.org%3AOptaic" class="Z3988"></span></span> </li> </ol></div></div> <style data-mw-deduplicate="TemplateStyles:r1129611">.mw-parser-output .fmbox{clear:both;margin:0.2em 0;width:100%;border:1px solid #a2a9b1;background-color:#f8f9fa;box-sizing:border-box}.mw-parser-output .fmbox-warning{border:1px solid #bb7070;background-color:#ffdbdb}.mw-parser-output .fmbox-editnotice{background-color:transparent}.mw-parser-output .fmbox .mbox-text{border:none;padding:0.25em 0.9em;width:100%}.mw-parser-output .fmbox .mbox-image{border:none;padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .fmbox .mbox-imageright{border:none;padding:2px 0.9em 2px 0;text-align:center}.mw-parser-output .fmbox .mbox-invalid-type{text-align:center}</style><table class="box-Fréamh_an_Eolais plainlinks fmbox fmbox-editnotice" role="presentation" style="clear:both; margin-top:10px;"><tbody><tr><td class="mbox-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Science-symbol-2.svg/30px-Science-symbol-2.svg.png" decoding="async" width="30" height="30" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Science-symbol-2.svg/45px-Science-symbol-2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/75/Science-symbol-2.svg/60px-Science-symbol-2.svg.png 2x" data-file-width="87" data-file-height="87" /></span></span></td><td class="mbox-text">Tá an t-alt seo bunaithe ar ábhar as <i><a href="/wiki/Fr%C3%A9amh_an_Eolais" title="Fréamh an Eolais">Fréamh an Eolais</a></i>, ciclipéid eolaíochta agus teicneolaíochta leis an Ollamh <a href="/wiki/Matthew_Hussey" title="Matthew Hussey">Matthew Hussey</a>, foilsithe ag <a href="/wiki/Coisc%C3%A9im" title="Coiscéim">Coiscéim</a> sa bhliain 2011. Tá comhluadar na Vicipéide go mór faoi chomaoin acu beirt as ucht cead a thabhairt an t-ábhar ón leabhar a roinnt linn go léir.</td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129611"><table class="box-Síol-optaic plainlinks fmbox fmbox-editnotice" role="presentation" style="clear:both; margin-top:10px;"><tbody><tr><td class="mbox-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/74/Lens_triplet.svg/30px-Lens_triplet.svg.png" decoding="async" width="30" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/74/Lens_triplet.svg/45px-Lens_triplet.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/74/Lens_triplet.svg/60px-Lens_triplet.svg.png 2x" data-file-width="241" data-file-height="201" /></span></span></td><td class="mbox-text"><i>Is <a href="/wiki/Vicip%C3%A9id:S%C3%ADol" title="Vicipéid:Síol">síol</a> faoin <a class="mw-selflink selflink">optaic</a> é an t-alt seo. <a class="external text" href="https://ga.wikipedia.org/w/index.php?title=Optaic&action=edit">Cuir leis</a>, chun cuidiú leis an Vicipéid.</i> <br /><i>Má tá alt níos forbartha le fáil i dteanga eile, is féidir leat aistriúchán <a href="/wiki/Gaeilge" class="mw-redirect" title="Gaeilge">Gaeilge</a> a dhéanamh.</i></td></tr></tbody></table>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Aisghafa ó "<a dir="ltr" href="https://ga.wikipedia.org/w/index.php?title=Optaic&oldid=1229912">https://ga.wikipedia.org/w/index.php?title=Optaic&oldid=1229912</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Speisialta:Categories" title="Speisialta:Categories">Catagóirí</a>: <ul><li><a href="/wiki/Catag%C3%B3ir:Fr%C3%A9amh_an_Eolais" title="Catagóir:Fréamh an Eolais">Fréamh an Eolais</a></li><li><a href="/wiki/Catag%C3%B3ir:S%C3%ADolta_a_bhaineann_le_hoptaic" title="Catagóir:Síolta a bhaineann le hoptaic">Síolta a bhaineann le hoptaic</a></li><li><a href="/wiki/Catag%C3%B3ir:Optaic" title="Catagóir:Optaic">Optaic</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Tugadh an leathanach seo cothrom le dáta an 25 Lúnasa 2024 ag 01:17.<br /></li> <li id="footer-info-copyright">Tá an téacs ar fáil faoi réir an <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution/Share-Alike License</a>; féadann téarmaí eile a bheith i bhfeidhm sa bhreis. Féach ar <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use">Téarmaí Úsáide</a> le sonraí a fháil. <br /> Trádmharc cláraithe is ea Wikipedia® de chuid <a rel="nofollow" class="external text" href="https://www.wikimediafoundation.org">Wikimedia Foundation, Inc.</a>, eagraíocht neamhbhrabúis.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Polasaí príobháideachais</a></li> <li id="footer-places-about"><a href="/wiki/Vicip%C3%A9id:Maidir_leis">Maidir le Vicipéid</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Vicip%C3%A9id:S%C3%A9anadh_ginear%C3%A1lta">Séanadh</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Forbróirí</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/ga.wikipedia.org">Staitisticí</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Ráiteas fianán</a></li> <li id="footer-places-mobileview"><a href="//ga.m.wikipedia.org/w/index.php?title=Optaic&oldid=1229912&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Amharc móibíleach</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-fr84h","wgBackendResponseTime":173,"wgPageParseReport":{"limitreport":{"cputime":"0.134","walltime":"0.289","ppvisitednodes":{"value":219,"limit":1000000},"postexpandincludesize":{"value":4994,"limit":2097152},"templateargumentsize":{"value":70,"limit":2097152},"expansiondepth":{"value":8,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":4936,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 133.716 1 -total"," 80.71% 107.925 1 Teimpléad:Reflist"," 65.20% 87.184 1 Teimpléad:Cite_encyclopedia"," 15.82% 21.157 1 Teimpléad:Fréamh_an_Eolais"," 15.79% 21.111 2 Teimpléad:Fmbox"," 3.30% 4.415 1 Teimpléad:Síol-optaic"," 1.46% 1.951 1 Teimpléad:Main_other"]},"scribunto":{"limitreport-timeusage":{"value":"0.065","limit":"10.000"},"limitreport-memusage":{"value":2918295,"limit":52428800}},"cachereport":{"origin":"mw-web.codfw.main-7d9797f5d-9vxvc","timestamp":"20241120054150","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Optaic","url":"https:\/\/ga.wikipedia.org\/wiki\/Optaic","sameAs":"http:\/\/www.wikidata.org\/entity\/Q14620","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q14620","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2013-11-01T22:29:48Z","dateModified":"2024-08-25T01:17:32Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/1\/1f\/Light_dispersion_of_a_mercury-vapor_lamp_with_a_flint_glass_prism_IPNr%C2%B00125.jpg"}</script> </body> </html>