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Luks – Wikipedija

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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">Sadržaj</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">sakrij</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">Početak</div> </a> </li> <li id="toc-Osvjetljenje" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Osvjetljenje"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Osvjetljenje</span> </div> </a> <ul id="toc-Osvjetljenje-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Fotometrija" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Fotometrija"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Fotometrija</span> </div> </a> <button aria-controls="toc-Fotometrija-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Sadržaj cjeline Fotometrija</span> </button> <ul id="toc-Fotometrija-sublist" class="vector-toc-list"> <li id="toc-Fotometrijske_veličine_i_mjerne_jedinice" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Fotometrijske_veličine_i_mjerne_jedinice"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Fotometrijske veličine i mjerne jedinice</span> </div> </a> <ul id="toc-Fotometrijske_veličine_i_mjerne_jedinice-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Objašnjenje" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Objašnjenje"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Objašnjenje</span> </div> </a> <ul id="toc-Objašnjenje-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Primjeri" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Primjeri"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Primjeri</span> </div> </a> <ul id="toc-Primjeri-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Izvori" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Izvori"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Izvori</span> </div> </a> <ul id="toc-Izvori-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="Sadržaj" 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="Prikaz sadržaja stranice" > <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">Prikaz sadržaja stranice</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">Luks</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="Idi na druge jezične varijante članka. Dostupan je na 63 jezika" > <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-63" 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">63 jezika</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%84%D9%83%D8%B3" title="لكس – arapski" lang="ar" hreflang="ar" data-title="لكس" data-language-autonym="العربية" data-language-local-name="arapski" 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/Lux" title="Lux – asturijski" lang="ast" hreflang="ast" data-title="Lux" data-language-autonym="Asturianu" data-language-local-name="asturijski" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9B%D1%8E%D0%BA%D1%81" title="Люкс – bjeloruski" lang="be" hreflang="be" data-title="Люкс" data-language-autonym="Беларуская" data-language-local-name="bjeloruski" 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%9B%D1%8E%D0%BA%D1%81" title="Люкс – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Люкс" 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%9B%D1%83%D0%BA%D1%81" title="Лукс – bugarski" lang="bg" hreflang="bg" data-title="Лукс" data-language-autonym="Български" data-language-local-name="bugarski" 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%B2%E0%A6%BE%E0%A6%95%E0%A7%8D%E0%A6%B8_(%E0%A6%8F%E0%A6%95%E0%A6%95)" title="লাক্স (একক) – bangla" lang="bn" hreflang="bn" data-title="লাক্স (একক)" data-language-autonym="বাংলা" data-language-local-name="bangla" 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%A3%E0%BC%8B%E0%BD%81%E0%BD%B2%E0%BC%8B%E0%BD%A6%E0%BD%B2%E0%BC%8D" title="ལ་ཁི་སི། – tibetski" lang="bo" hreflang="bo" data-title="ལ་ཁི་སི།" data-language-autonym="བོད་ཡིག" data-language-local-name="tibetski" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Luks" title="Luks – bosanski" lang="bs" hreflang="bs" data-title="Luks" data-language-autonym="Bosanski" data-language-local-name="bosanski" 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/Lux" title="Lux – katalonski" lang="ca" hreflang="ca" data-title="Lux" data-language-autonym="Català" data-language-local-name="katalonski" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Lux_(jednotka)" title="Lux (jednotka) – češki" lang="cs" hreflang="cs" data-title="Lux (jednotka)" data-language-autonym="Čeština" data-language-local-name="češki" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Lux" title="Lux – danski" lang="da" hreflang="da" data-title="Lux" data-language-autonym="Dansk" data-language-local-name="danski" 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/Lux_(Einheit)" title="Lux (Einheit) – njemački" lang="de" hreflang="de" data-title="Lux (Einheit)" data-language-autonym="Deutsch" data-language-local-name="njemački" 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%9B%CE%BF%CF%85%CE%BE_(%CE%BC%CE%BF%CE%BD%CE%AC%CE%B4%CE%B1_%CE%BC%CE%AD%CF%84%CF%81%CE%B7%CF%83%CE%B7%CF%82)" title="Λουξ (μονάδα μέτρησης) – grčki" lang="el" hreflang="el" data-title="Λουξ (μονάδα μέτρησης)" data-language-autonym="Ελληνικά" data-language-local-name="grčki" 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/Lux" title="Lux – engleski" lang="en" hreflang="en" data-title="Lux" data-language-autonym="English" data-language-local-name="engleski" 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/Lukso_(mezurunuo)" title="Lukso (mezurunuo) – esperanto" lang="eo" hreflang="eo" data-title="Lukso (mezurunuo)" 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/Lux" title="Lux – španjolski" lang="es" hreflang="es" data-title="Lux" data-language-autonym="Español" data-language-local-name="španjolski" 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/Luks" title="Luks – estonski" lang="et" hreflang="et" data-title="Luks" data-language-autonym="Eesti" data-language-local-name="estonski" 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/Lux_(unitatea)" title="Lux (unitatea) – baskijski" lang="eu" hreflang="eu" data-title="Lux (unitatea)" data-language-autonym="Euskara" data-language-local-name="baskijski" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%84%D9%88%DA%A9%D8%B3" title="لوکس – perzijski" lang="fa" hreflang="fa" data-title="لوکس" data-language-autonym="فارسی" data-language-local-name="perzijski" 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/Luksi" title="Luksi – finski" lang="fi" hreflang="fi" data-title="Luksi" data-language-autonym="Suomi" data-language-local-name="finski" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Lux_(unit%C3%A9)" title="Lux (unité) – francuski" lang="fr" hreflang="fr" data-title="Lux (unité)" data-language-autonym="Français" data-language-local-name="francuski" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Lucsa" title="Lucsa – irski" lang="ga" hreflang="ga" data-title="Lucsa" data-language-autonym="Gaeilge" data-language-local-name="irski" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Lux" title="Lux – galicijski" lang="gl" hreflang="gl" data-title="Lux" data-language-autonym="Galego" data-language-local-name="galicijski" 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%9C%D7%95%D7%A7%D7%A1" title="לוקס – hebrejski" lang="he" hreflang="he" data-title="לוקס" data-language-autonym="עברית" data-language-local-name="hebrejski" 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%B2%E0%A4%95%E0%A5%8D%E0%A4%B8" title="लक्स – hindski" lang="hi" hreflang="hi" data-title="लक्स" data-language-autonym="हिन्दी" data-language-local-name="hindski" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Lux" title="Lux – mađarski" lang="hu" hreflang="hu" data-title="Lux" data-language-autonym="Magyar" data-language-local-name="mađarski" 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/%D4%BC%D5%B5%D5%B8%D6%82%D6%84%D5%BD_(%D5%B9%D5%A1%D6%83%D5%B4%D5%A1%D5%B6_%D5%B4%D5%AB%D5%A1%D5%BE%D5%B8%D6%80)" title="Լյուքս (չափման միավոր) – armenski" lang="hy" hreflang="hy" data-title="Լյուքս (չափման միավոր)" data-language-autonym="Հայերեն" data-language-local-name="armenski" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Lux" title="Lux – indonezijski" lang="id" hreflang="id" data-title="Lux" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonezijski" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/L%C3%BAx" title="Lúx – islandski" lang="is" hreflang="is" data-title="Lúx" data-language-autonym="Íslenska" data-language-local-name="islandski" 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/Lux" title="Lux – talijanski" lang="it" hreflang="it" data-title="Lux" data-language-autonym="Italiano" data-language-local-name="talijanski" 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/%E3%83%AB%E3%82%AF%E3%82%B9" title="ルクス – japanski" lang="ja" hreflang="ja" data-title="ルクス" data-language-autonym="日本語" data-language-local-name="japanski" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9A%E1%83%A3%E1%83%A5%E1%83%A1%E1%83%98" title="ლუქსი – gruzijski" lang="ka" hreflang="ka" data-title="ლუქსი" data-language-autonym="ქართული" data-language-local-name="gruzijski" 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%9B%D1%8E%D0%BA%D1%81" title="Люкс – kazaški" lang="kk" hreflang="kk" data-title="Люкс" data-language-autonym="Қазақша" data-language-local-name="kazaški" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%9F%AD%EC%8A%A4" title="럭스 – korejski" lang="ko" hreflang="ko" data-title="럭스" data-language-autonym="한국어" data-language-local-name="korejski" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9B%D1%8E%D0%BA%D1%81" title="Люкс – kirgiski" lang="ky" hreflang="ky" data-title="Люкс" data-language-autonym="Кыргызча" data-language-local-name="kirgiski" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Liuksas" title="Liuksas – litavski" lang="lt" hreflang="lt" data-title="Liuksas" data-language-autonym="Lietuvių" data-language-local-name="litavski" 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/Lukss" title="Lukss – latvijski" lang="lv" hreflang="lv" data-title="Lukss" data-language-autonym="Latviešu" data-language-local-name="latvijski" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9B%D1%83%D0%BA%D1%81" title="Лукс – makedonski" lang="mk" hreflang="mk" data-title="Лукс" data-language-autonym="Македонски" data-language-local-name="makedonski" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%9B%D1%8E%D0%BA%D1%81_(%D0%BD%D1%8D%D0%B3%D0%B6)" title="Люкс (нэгж) – mongolski" lang="mn" hreflang="mn" data-title="Люкс (нэгж)" data-language-autonym="Монгол" data-language-local-name="mongolski" 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/Lux" title="Lux – malajski" lang="ms" hreflang="ms" data-title="Lux" data-language-autonym="Bahasa Melayu" data-language-local-name="malajski" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Lux_(eenheid)" title="Lux (eenheid) – nizozemski" lang="nl" hreflang="nl" data-title="Lux (eenheid)" data-language-autonym="Nederlands" data-language-local-name="nizozemski" 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/Lux" title="Lux – norveški nynorsk" lang="nn" hreflang="nn" data-title="Lux" data-language-autonym="Norsk nynorsk" data-language-local-name="norveški nynorsk" 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/Lux" title="Lux – norveški bokmål" lang="nb" hreflang="nb" data-title="Lux" data-language-autonym="Norsk bokmål" data-language-local-name="norveški bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Luks_(fotometria)" title="Luks (fotometria) – poljski" lang="pl" hreflang="pl" data-title="Luks (fotometria)" data-language-autonym="Polski" data-language-local-name="poljski" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Lux" title="Lux – portugalski" lang="pt" hreflang="pt" data-title="Lux" data-language-autonym="Português" data-language-local-name="portugalski" 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/Lux" title="Lux – rumunjski" lang="ro" hreflang="ro" data-title="Lux" data-language-autonym="Română" data-language-local-name="rumunjski" 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%9B%D1%8E%D0%BA%D1%81" title="Люкс – ruski" lang="ru" hreflang="ru" data-title="Люкс" data-language-autonym="Русский" data-language-local-name="ruski" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Lux" title="Lux – sicilijski" lang="scn" hreflang="scn" data-title="Lux" data-language-autonym="Sicilianu" data-language-local-name="sicilijski" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Luks" title="Luks – srpsko-hrvatski" lang="sh" hreflang="sh" data-title="Luks" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="srpsko-hrvatski" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Lux_(jednotka)" title="Lux (jednotka) – slovački" lang="sk" hreflang="sk" data-title="Lux (jednotka)" data-language-autonym="Slovenčina" data-language-local-name="slovački" 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/Luks" title="Luks – slovenski" lang="sl" hreflang="sl" data-title="Luks" data-language-autonym="Slovenščina" data-language-local-name="slovenski" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9B%D1%83%D0%BA%D1%81" title="Лукс – srpski" lang="sr" hreflang="sr" data-title="Лукс" data-language-autonym="Српски / srpski" data-language-local-name="srpski" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Lux_(enhet)" title="Lux (enhet) – švedski" lang="sv" hreflang="sv" data-title="Lux (enhet)" data-language-autonym="Svenska" data-language-local-name="švedski" 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%B2%E0%AE%95%E0%AF%8D%E0%AE%9A%E0%AF%81" title="லக்சு – tamilski" lang="ta" hreflang="ta" data-title="லக்சு" data-language-autonym="தமிழ்" data-language-local-name="tamilski" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A5%E0%B8%B1%E0%B8%81%E0%B8%8B%E0%B9%8C" title="ลักซ์ – tajlandski" lang="th" hreflang="th" data-title="ลักซ์" data-language-autonym="ไทย" data-language-local-name="tajlandski" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/L%C3%BCks_(birim)" title="Lüks (birim) – turski" lang="tr" hreflang="tr" data-title="Lüks (birim)" data-language-autonym="Türkçe" data-language-local-name="turski" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9B%D1%8E%D0%BA%D1%81" title="Люкс – ukrajinski" lang="uk" hreflang="uk" data-title="Люкс" data-language-autonym="Українська" data-language-local-name="ukrajinski" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Lyuks_(o%CA%BBlchov_birligi)" title="Lyuks (oʻlchov birligi) – uzbečki" lang="uz" hreflang="uz" data-title="Lyuks (oʻlchov birligi)" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbečki" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Lux" title="Lux – vijetnamski" lang="vi" hreflang="vi" data-title="Lux" data-language-autonym="Tiếng Việt" data-language-local-name="vijetnamski" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%8B%92%E5%85%8B%E6%96%AF" title="勒克斯 – wu kineski" lang="wuu" hreflang="wuu" data-title="勒克斯" data-language-autonym="吴语" data-language-local-name="wu kineski" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%8B%92%E5%85%8B%E6%96%AF" title="勒克斯 – kineski" lang="zh" hreflang="zh" data-title="勒克斯" data-language-autonym="中文" data-language-local-name="kineski" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Lux" title="Lux – min nan kineski" lang="nan" hreflang="nan" data-title="Lux" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="min nan kineski" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%8B%92%E5%85%8B%E6%96%AF" title="勒克斯 – kantonski" lang="yue" hreflang="yue" data-title="勒克斯" data-language-autonym="粵語" data-language-local-name="kantonski" class="interlanguage-link-target"><span>粵語</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/Q179836#sitelinks-wikipedia" title="Poveznice na druge jezike" class="wbc-editpage">Uredi poveznice</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="Imenski prostori"> <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/Luks" title="Pogledaj sadržaj [c]" accesskey="c"><span>Stranica</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Razgovor:Luks&amp;action=edit&amp;redlink=1" rel="discussion" class="new" title="Razgovorna stranica (stranica ne postoji) [t]" accesskey="t"><span>Razgovor</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="Promijeni jezičnu varijantu" > <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">hrvatski</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="Pogledi"> <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/Luks"><span>Čitaj</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Luks&amp;veaction=edit" title="Uredite ovu stranicu [v]" accesskey="v"><span>Uredi</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Luks&amp;action=edit" title="Uredite izvorni kôd ove stranice [e]" accesskey="e"><span>Uredi kôd</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Luks&amp;action=history" title="Ranije izmjene na ovoj stranici [h]" accesskey="h"><span>Vidi povijest</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Pomagala"> <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="Pomagala" > <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">Pomagala</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">Pomagala</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">sakrij</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Više mogućnosti" > <div class="vector-menu-heading"> Radnje </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/Luks"><span>Čitaj</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Luks&amp;veaction=edit" title="Uredite ovu stranicu [v]" accesskey="v"><span>Uredi</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Luks&amp;action=edit" title="Uredite izvorni kôd ove stranice [e]" accesskey="e"><span>Uredi kôd</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Luks&amp;action=history"><span>Vidi povijest</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Razno </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Posebno:%C5%A0to_vodi_ovamo/Luks" title="Popis svih stranica koje sadrže poveznice na ovu stranicu [j]" accesskey="j"><span>Što vodi ovamo</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Posebno:Povezane_promjene/Luks" rel="nofollow" title="Nedavne promjene na stranicama koje su povezane s navedenom stranicom [k]" accesskey="k"><span>Povezane promjene</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedija:Upload" title="Postavi datoteke [u]" accesskey="u"><span>Postavi datoteku</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Posebno:Posebne_stranice" title="Popis svih posebnih stranica [q]" accesskey="q"><span>Posebne stranice</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Luks&amp;oldid=6228377" title="Trajna poveznica na ovu verziju stranice"><span>Trajna poveznica</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Luks&amp;action=info" title="Više informacija o ovoj stranici"><span>Podatci o stranici</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Posebno:Citiraj&amp;page=Luks&amp;id=6228377&amp;wpFormIdentifier=titleform" title="Informacije o tome kako citirati ovu stranicu"><span>Citiraj ovu stranicu</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Posebno:Skra%C4%87iva%C4%8D_adresa&amp;url=https%3A%2F%2Fhr.wikipedia.org%2Fwiki%2FLuks"><span>Skraćeni URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Posebno:QrCode&amp;url=https%3A%2F%2Fhr.wikipedia.org%2Fwiki%2FLuks"><span>Preuzmi QR kôd</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"> Ispis/izvoz </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=Posebno:Zbirka&amp;bookcmd=book_creator&amp;referer=Luks"><span>Stvori knjigu</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Posebno:DownloadAsPdf&amp;page=Luks&amp;action=show-download-screen"><span>Preuzmi kao PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Luks&amp;printable=yes" title="Inačica za ispis ove stranice [p]" accesskey="p"><span>Inačica za ispis</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"> Wikimedijini projekti </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q179836" title="Poveznica na stavku na projektu Wikipodatci [g]" accesskey="g"><span>Stavka na Wikipodatcima</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="Pomagala"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Izgled"> <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">Izgled</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">sakrij</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">Izvor: Wikipedija</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="hr" dir="ltr"><div class="hatnote"><span typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Disambig.svg/20px-Disambig.svg.png" decoding="async" width="20" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Disambig.svg/30px-Disambig.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Disambig.svg/40px-Disambig.svg.png 2x" data-file-width="230" data-file-height="183" /></span></span> <i>»Luks«, »Titovog istoimenog psa«&#160;i&#160;»<a href="/wiki/Luks_(pas)" title="Luks (pas)">Luks (pas)</a>«&#160;preusmjeravaju ovamo.</i> <i>Za druga značenja pogledajte <a href="/w/index.php?title=Luks_(razdvojba)&amp;action=edit&amp;redlink=1" class="new" title="Luks (razdvojba) (stranica ne postoji)">Luks (razdvojba)</a></i>. </div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Lux_meter.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Lux_meter.jpg/300px-Lux_meter.jpg" decoding="async" width="300" height="294" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Lux_meter.jpg/450px-Lux_meter.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Lux_meter.jpg/600px-Lux_meter.jpg 2x" data-file-width="1156" data-file-height="1132" /></a><figcaption>Luksmetar za mjerenje <a href="/wiki/Osvjetljenje" title="Osvjetljenje">osvjetljenja</a> (iluminacije) u radnim uvjetima.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Fotometer.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/36/Fotometer.jpg/300px-Fotometer.jpg" decoding="async" width="300" height="262" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/36/Fotometer.jpg/450px-Fotometer.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/36/Fotometer.jpg/600px-Fotometer.jpg 2x" data-file-width="2000" data-file-height="1746" /></a><figcaption><a href="/wiki/Fotometar" title="Fotometar">Fotometar</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Luminosity.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Luminosity.png/300px-Luminosity.png" decoding="async" width="300" height="205" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Luminosity.png/450px-Luminosity.png 1.5x, //upload.wikimedia.org/wikipedia/commons/a/a0/Luminosity.png 2x" data-file-width="570" data-file-height="390" /></a><figcaption>Funkcija osjetljivosti <a href="/wiki/Oko" title="Oko">oka</a> prikazana je na dijagramu kojemu se na apscisi nalaze <a href="/wiki/Valna_duljina" title="Valna duljina">valne duljine</a> približno je simetrična krivulja s oštrim maksimumom jednakim jedinici na valnoj duljini 555 <a href="/wiki/Metar" title="Metar">nm</a> za dnevnu osjetljivost (crno) i 507 nm za noćnu osjetljivost (zeleno). Njezina je vrijednost za valnu duljinu 600 nm 0,63, a za valne duljine 380 i 780 nm iznosi 0.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Linear_visible_spectrum.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Linear_visible_spectrum.svg/300px-Linear_visible_spectrum.svg.png" decoding="async" width="300" height="57" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Linear_visible_spectrum.svg/450px-Linear_visible_spectrum.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Linear_visible_spectrum.svg/600px-Linear_visible_spectrum.svg.png 2x" data-file-width="605" data-file-height="115" /></a><figcaption></figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:V-LIGHT_A314.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/V-LIGHT_A314.JPG/300px-V-LIGHT_A314.JPG" decoding="async" width="300" height="225" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/V-LIGHT_A314.JPG/450px-V-LIGHT_A314.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b5/V-LIGHT_A314.JPG/600px-V-LIGHT_A314.JPG 2x" data-file-width="3648" data-file-height="2736" /></a><figcaption>Standardna <a href="/wiki/LED" class="mw-redirect" title="LED">LED</a> svjetiljka električne <a href="/wiki/Snaga" title="Snaga">snage</a> 7 <a href="/wiki/Vat" title="Vat">W</a> i svjetlosne snage 470 <a href="/wiki/Lumen" title="Lumen">lumena</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Gluehlampe_01_KMJ.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Gluehlampe_01_KMJ.jpg/300px-Gluehlampe_01_KMJ.jpg" decoding="async" width="300" height="498" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Gluehlampe_01_KMJ.jpg/450px-Gluehlampe_01_KMJ.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Gluehlampe_01_KMJ.jpg/600px-Gluehlampe_01_KMJ.jpg 2x" data-file-width="768" data-file-height="1276" /></a><figcaption><a href="/wiki/Elektri%C4%8Dna_%C5%BEarulja" title="Električna žarulja">Električna žarulja</a> električne <a href="/wiki/Snaga" title="Snaga">snage</a> 40 <a href="/wiki/Vat" title="Vat">W</a> i svjetlosne snage 325 <a href="/wiki/Lumen" title="Lumen">lumena</a>.</figcaption></figure> <p><b>Luks</b> (<a href="/wiki/Latinski_jezik" title="Latinski jezik">lat</a>. <i>lux</i>: svjetlost; oznaka lx) je <a href="/wiki/Mjerna_jedinica" title="Mjerna jedinica">mjerna jedinica</a> <a href="/wiki/Osvjetljenje" title="Osvjetljenje">osvjetljenja</a>, izvedena jedinica <a href="/wiki/SI" class="mw-redirect" title="SI">SI</a> (<a href="/wiki/Me%C4%91unarodni_sustav_mjernih_jedinica" title="Međunarodni sustav mjernih jedinica">Međunarodni sustav mjernih jedinica</a>). Određen je osvjetljenjem <a href="/wiki/Ploha" class="mw-disambig" title="Ploha">plohe</a> kojoj je na <a href="/wiki/%C4%8Cetvorni_metar" title="Četvorni metar">četvorni metar</a> jednoliko raspoređen svjetlosni tok od jednoga <a href="/wiki/Lumen" title="Lumen">lumena</a>, to jest:<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 1\ \mathrm {lx} =1\ {\frac {\mathrm {lumen} }{\mathrm {metar} ^{2}}}=1\ {\frac {\mathrm {lm} }{\mathrm {m} ^{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>1</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">l</mi> <mi mathvariant="normal">x</mi> </mrow> <mo>=</mo> <mn>1</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">l</mi> <mi mathvariant="normal">u</mi> <mi mathvariant="normal">m</mi> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">n</mi> </mrow> <msup> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">m</mi> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">t</mi> <mi mathvariant="normal">a</mi> <mi mathvariant="normal">r</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> <mo>=</mo> <mn>1</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">l</mi> <mi mathvariant="normal">m</mi> </mrow> <msup> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">m</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 1\ \mathrm {lx} =1\ {\frac {\mathrm {lumen} }{\mathrm {metar} ^{2}}}=1\ {\frac {\mathrm {lm} }{\mathrm {m} ^{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4e3d9f0a67701b274a60c1c322be6c4703729033" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:24.964ex; height:5.676ex;" alt="{\displaystyle 1\ \mathrm {lx} =1\ {\frac {\mathrm {lumen} }{\mathrm {metar} ^{2}}}=1\ {\frac {\mathrm {lm} }{\mathrm {m} ^{2}}}}"></span></dd></dl> <p>Jakost rasvjete od 1 lx ima površinu od 1 m<sup>2</sup> ako na nju pada <a href="/wiki/Svjetlosni_tok" title="Svjetlosni tok">svjetlosni tok</a> od 1 lm. Može se i ovako reći: <b>Jakost rasvjete od 1 lx ima ona točka neke površine na koju pada okomito svjetlost od izvora svjetlosti 1 cd, koji je od nje udaljen 1 m.</b> Što plohu dalje odmičemo od izvora svjetlosti, to je njena rasvjeta slabija, jer se isti tok svjetlosti podijeli na veću površinu. Prema tome jakost rasvjete je upravno razmjerna (proporcionalna) sa svjetlosnim tokom, a obrnuto proporcionalna s veličinom površine na koju taj tok pada. </p><p>Veća mjerna jedinica (zastarjela) od 1 lx je 1 <a href="/wiki/Fot" title="Fot">fot</a> (ph): </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 1\ \mathrm {fot} =1\ {\frac {\mathrm {lumen} }{\mathrm {centimetar} ^{2}}}=10\,000\ {\frac {\mathrm {lumen} }{\mathrm {metar} ^{2}}}=10\,000\ \mathrm {luks} =10\ \mathrm {kiloluks} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>1</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">f</mi> <mi mathvariant="normal">o</mi> <mi mathvariant="normal">t</mi> </mrow> <mo>=</mo> <mn>1</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">l</mi> <mi mathvariant="normal">u</mi> <mi mathvariant="normal">m</mi> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">n</mi> </mrow> <msup> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">c</mi> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">n</mi> <mi mathvariant="normal">t</mi> <mi mathvariant="normal">i</mi> <mi mathvariant="normal">m</mi> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">t</mi> <mi mathvariant="normal">a</mi> <mi mathvariant="normal">r</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> <mo>=</mo> <mn>10</mn> <mspace width="thinmathspace" /> <mn>000</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">l</mi> <mi mathvariant="normal">u</mi> <mi mathvariant="normal">m</mi> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">n</mi> </mrow> <msup> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">m</mi> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">t</mi> <mi mathvariant="normal">a</mi> <mi mathvariant="normal">r</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> <mo>=</mo> <mn>10</mn> <mspace width="thinmathspace" /> <mn>000</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">l</mi> <mi mathvariant="normal">u</mi> <mi mathvariant="normal">k</mi> <mi mathvariant="normal">s</mi> </mrow> <mo>=</mo> <mn>10</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">k</mi> <mi mathvariant="normal">i</mi> <mi mathvariant="normal">l</mi> <mi mathvariant="normal">o</mi> <mi mathvariant="normal">l</mi> <mi mathvariant="normal">u</mi> <mi mathvariant="normal">k</mi> <mi mathvariant="normal">s</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 1\ \mathrm {fot} =1\ {\frac {\mathrm {lumen} }{\mathrm {centimetar} ^{2}}}=10\,000\ {\frac {\mathrm {lumen} }{\mathrm {metar} ^{2}}}=10\,000\ \mathrm {luks} =10\ \mathrm {kiloluks} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/81c64df23c1f752aa1d58597630246626ad9bcda" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.338ex; width:67.711ex; height:5.843ex;" alt="{\displaystyle 1\ \mathrm {fot} =1\ {\frac {\mathrm {lumen} }{\mathrm {centimetar} ^{2}}}=10\,000\ {\frac {\mathrm {lumen} }{\mathrm {metar} ^{2}}}=10\,000\ \mathrm {luks} =10\ \mathrm {kiloluks} }"></span></dd></dl> <p>Manja mjerna jedinica (zastarjela) od 1 lx je 1 noks (nx): </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 1\ \mathrm {nx} =0,001\ \mathrm {lx} =0,000\,000\,1\,\mathrm {ph} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>1</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">n</mi> <mi mathvariant="normal">x</mi> </mrow> <mo>=</mo> <mn>0</mn> <mo>,</mo> <mn>001</mn> <mtext>&#xA0;</mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">l</mi> <mi mathvariant="normal">x</mi> </mrow> <mo>=</mo> <mn>0</mn> <mo>,</mo> <mn>000</mn> <mspace width="thinmathspace" /> <mn>000</mn> <mspace width="thinmathspace" /> <mn>1</mn> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">p</mi> <mi mathvariant="normal">h</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 1\ \mathrm {nx} =0,001\ \mathrm {lx} =0,000\,000\,1\,\mathrm {ph} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/42cbb5499e5236e0517dc4cbf39847c650e13a23" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:32.679ex; height:2.509ex;" alt="{\displaystyle 1\ \mathrm {nx} =0,001\ \mathrm {lx} =0,000\,000\,1\,\mathrm {ph} }"></span></dd></dl> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Osvjetljenje">Osvjetljenje</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Luks&amp;veaction=edit&amp;section=1" title="Uredi odlomak: Osvjetljenje" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Luks&amp;action=edit&amp;section=1" title="Uredi kôd odjeljka Osvjetljenje"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><style data-mw-deduplicate="TemplateStyles:r7016135">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Osvjetljenje" title="Osvjetljenje">Osvjetljenje</a></div></i></div> <p><b>Osvjetljenje</b> ili <b>iluminacija</b> (oznaka <i>E<sub>s</sub></i>) je <a href="/wiki/Fotometrija" title="Fotometrija">fotometrijska</a> <a href="/wiki/Fizikalna_veli%C4%8Dina" class="mw-redirect" title="Fizikalna veličina">fizikalna veličina</a> kojom se opisuje upadanje <a href="/wiki/Svjetlost" title="Svjetlost">svjetlosti</a> na neku plohu, a određena je količnikom&#160;<a href="/wiki/Svjetlosni_tok" title="Svjetlosni tok">svjetlosnoga toka</a> <i>Φ<sub>s</sub></i> i&#160;<a href="/wiki/Plo%C5%A1tina" class="mw-redirect" title="Ploština">ploštine</a> <i>P</i> te plohe, to jest: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle E_{s}={\frac {\Phi _{s}}{P}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msub> <mi mathvariant="normal">&#x03A6;<!-- Φ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mi>P</mi> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E_{s}={\frac {\Phi _{s}}{P}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/246b5a72c09828aed3b5c2585338d6bf3ecbe1c4" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.838ex; width:9.335ex; height:5.176ex;" alt="{\displaystyle E_{s}={\frac {\Phi _{s}}{P}}}"></span></dd></dl> <p><a href="/wiki/Mjerna_jedinica" title="Mjerna jedinica">Mjerna jedinica</a> osvjetljenja jest&#160;luks (lx&#160;=&#160;lm/m<sup>2</sup>). <a href="/wiki/Sunce" title="Sunce">Sunce</a> u <a href="/wiki/Zenit" title="Zenit">zenitu</a> daje na osvjetljenom tlu osvjetljenje od približno 100&#160;000&#160;lx, a na granici <a href="/wiki/Zemljina_atmosfera" title="Zemljina atmosfera">Zemaljske atmosfere</a> oko 200&#160;000&#160;lx, pun <a href="/wiki/Mjesec" title="Mjesec">Mjesec</a> daje osvjetljenje 0,25&#160;lx, svjetlost <a href="/wiki/Zvijezda" title="Zvijezda">zvijezda</a> daje 0,0003&#160;lx, osvjetljenje za čitanje treba biti barem 50&#160;lx. </p><p>Ovisnost osvjetljenja neke <a href="/wiki/Povr%C5%A1ina" title="Površina">površine</a>, zbog radijalnog širenja svjetlosti iz točkastog izvora, obrnuto je razmjerna kvadratu udaljenosti od izvora svjetlosti: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\frac {E_{1}}{E_{2}}}={\frac {r_{2}^{2}}{r_{1}^{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mfrac> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msubsup> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msubsup> <msubsup> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msubsup> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\frac {E_{1}}{E_{2}}}={\frac {r_{2}^{2}}{r_{1}^{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f9dc760636ba9eecc46ece93dd6bbac021defbf8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.838ex; width:9.643ex; height:6.843ex;" alt="{\displaystyle {\frac {E_{1}}{E_{2}}}={\frac {r_{2}^{2}}{r_{1}^{2}}}}"></span></dd></dl> <p>gdje su <i>E<sub>1</sub></i> i <i>E<sub>2</sub></i> osvjetljenja na <a href="/wiki/Udaljenost" class="mw-redirect" title="Udaljenost">udaljenostima</a> od izvora <i>r<sub>1</sub></i> i <i>r<sub>2</sub></i>. </p><p>Ovisnost osvjetljenja neke površine o upadnom kutu svjetlosti opisuje <a href="/wiki/Johann_Heinrich_Lambert" title="Johann Heinrich Lambert">Lambertov</a> <a href="/wiki/Kosinus" title="Kosinus">kosinusni</a> zakon: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle E=E_{0}\cdot \cos \phi }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>E</mi> <mo>=</mo> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msub> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>cos</mi> <mo>&#x2061;<!-- ⁡ --></mo> <mi>&#x03D5;<!-- ϕ --></mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E=E_{0}\cdot \cos \phi }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/506ba9743feca81ec351fb9dc0a741248e3ae181" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:14.206ex; height:2.509ex;" alt="{\displaystyle E=E_{0}\cdot \cos \phi }"></span></dd></dl> <p>gdje je: <i>E<sub>0</sub></i> - osvjetljenje plohe okomite na zrake svjetlosti, a <i>φ</i> - upadni <a href="/wiki/Kut" title="Kut">kut</a> zraka svjetlosti u odnosu na okomicu.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Fotometrija">Fotometrija</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Luks&amp;veaction=edit&amp;section=2" title="Uredi odlomak: Fotometrija" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Luks&amp;action=edit&amp;section=2" title="Uredi kôd odjeljka Fotometrija"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Fotometrija" title="Fotometrija">Fotometrija</a></div></i></div> <p><b>Fotometrija</b> je grana <a href="/wiki/Optika" title="Optika">optike</a> koja se bavi <a href="/wiki/Mjerenje" title="Mjerenje">mjerenjem</a> svojstava <a href="/wiki/Svjetlost" title="Svjetlost">svjetlosti</a> (svojstava izvora svjetlosti, svjetlosnoga toka i osvjetljenja površina). Povijesna fotometrijska mjerenja obavljana su s pomoću <a href="/wiki/Oko" title="Oko">ljudskoga oka</a>, a suvremena fotometrijska mjerenja, iako koriste <a href="/wiki/Elektronika" title="Elektronika">elektroničke</a> fotometre, prilagođena su osjetljivosti ljudskoga oka. Obuhvaćaju samo onaj dio <a href="/wiki/Spektar_(fizika)" title="Spektar (fizika)">spektra elektromagnetskih valova</a> koji zamjećuje ljudsko oko, to jest ograničena su na <a href="/wiki/Valna_duljina" title="Valna duljina">valne duljine</a> od približno 380 do 780 <a href="/wiki/Metar" title="Metar">nm</a>. Kako ljudsko oko nije jednako osjetljivo na sve valne duljine vidljive svjetlosti, za svaku se valnu duljinu s pomoću fotometrijskoga ekvivalenta i funkcije osjetljivosti vida određuje ekvivalentna vrijednost standardnog promatrača (prema <a href="/wiki/Me%C4%91unarodna_organizacija_za_standardizaciju" title="Međunarodna organizacija za standardizaciju">Međunarodnoj organizaciji za normizaciju ISO</a>). Mjerenjima svojstava cjelokupnoga <a href="/wiki/Elektromagnetsko_zra%C4%8Denje" title="Elektromagnetsko zračenje">elektromagnetskoga spektra</a> bavi se <a href="/wiki/Radiometrija" title="Radiometrija">radiometrija</a>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Fotometrijske_veličine_i_mjerne_jedinice"><span id="Fotometrijske_veli.C4.8Dine_i_mjerne_jedinice"></span>Fotometrijske veličine i mjerne jedinice</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Luks&amp;veaction=edit&amp;section=3" title="Uredi odlomak: Fotometrijske veličine i mjerne jedinice" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Luks&amp;action=edit&amp;section=3" title="Uredi kôd odjeljka Fotometrijske veličine i mjerne jedinice"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="sortable wikitable float-right"> <caption>Fotometrijske veličine i mjerne jedinice </caption> <tbody><tr class="hintergrundfarbe6"> <th colspan="2">Veličina </th> <th colspan="2"><a href="/wiki/Mjerna_jedinica" title="Mjerna jedinica">Mjerna jedinica</a> </th> <th rowspan="2">Napomena </th></tr> <tr> <td>naziv</td> <td>znak</td> <td>naziv</td> <td>znak</td> <td> </td></tr> <tr> <td><a href="/wiki/Svjetlosna_energija" title="Svjetlosna energija">Svjetlosna energija</a></td> <td><i>Q<sub>s</sub></i></td> <td>lumen sekunda</td> <td>lm⋅s</td> <td>naziva se i <a href="/wiki/Koli%C4%8Dina_svjetlosti" class="mw-redirect" title="Količina svjetlosti">količina svjetlosti</a> </td></tr> <tr> <td><a href="/wiki/Svjetlosni_tok" title="Svjetlosni tok">Svjetlosni tok</a></td> <td><i>Φ<sub>s</sub></i></td> <td>lumen (cd⋅<a href="/wiki/Steradijan" title="Steradijan">sr</a>)</td> <td>lm</td> <td>naziva se i <a href="/wiki/Luminacijski_fluks" class="mw-redirect" title="Luminacijski fluks">luminacijski fluks</a> ili <a href="/wiki/Svjetlosna_snaga" class="mw-redirect" title="Svjetlosna snaga">svjetlosna snaga</a> </td></tr> <tr> <td><a href="/wiki/Svjetlosna_jakost" title="Svjetlosna jakost">Svjetlosna jakost</a></td> <td><i>I<sub>s</sub></i></td> <td><a href="/wiki/Kandela" title="Kandela">kandela</a> (lm/sr)</td> <td>cd</td> <td>naziva se i <a href="/wiki/Luminacijski_intenzitet" class="mw-redirect" title="Luminacijski intenzitet">luminacijski intenzitet</a> </td></tr> <tr> <td><a href="/wiki/Svjetljivost" title="Svjetljivost">Svjetljivost</a></td> <td><i>L<sub>s</sub></i></td> <td>kandela po <a href="/wiki/%C4%8Cetvorni_metar" title="Četvorni metar">četvornom metru</a></td> <td>cd/m<sup>2</sup></td> <td>naziva se i <a href="/wiki/Luminancija" class="mw-redirect" title="Luminancija">luminancija</a> </td></tr> <tr> <td><a href="/wiki/Osvjetljenje" title="Osvjetljenje">Osvjetljenje</a></td> <td><i>E<sub>s</sub></i></td> <td>luks (lm/m<sup>2</sup>)</td> <td>lx</td> <td>naziva se i <a href="/wiki/Iluminacija_(optika)" class="mw-redirect" title="Iluminacija (optika)">iluminacija</a> </td></tr> <tr> <td><a href="/wiki/Osvijetljenost" title="Osvijetljenost">Osvijetljenost</a></td> <td><i>H<sub>s</sub></i></td> <td>luks sekunda</td> <td>lx⋅s</td> <td>naziva se i <b>svjetlosna izloženost</b> ili <a href="/wiki/Ekspozicija_(razdvojba)" class="mw-disambig" title="Ekspozicija (razdvojba)">ekspozicija</a> </td></tr> <tr> <td><a href="/wiki/Stupanj_iskori%C5%A1tenja_raznih_izvora_svjetlosti" title="Stupanj iskorištenja raznih izvora svjetlosti">Svjetlosna učinkovitost</a></td> <td><i>η</i></td> <td>lumen po <a href="/wiki/Vat" title="Vat">vatu</a></td> <td>lm/W</td> <td>naziva se i <b>luminacijska efektnost</b> </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Objašnjenje"><span id="Obja.C5.A1njenje"></span>Objašnjenje</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Luks&amp;veaction=edit&amp;section=4" title="Uredi odlomak: Objašnjenje" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Luks&amp;action=edit&amp;section=4" title="Uredi kôd odjeljka Objašnjenje"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Koli%C4%8Dina_svjetlosti" class="mw-redirect" title="Količina svjetlosti">Količina svjetlosti</a> koju točkasti izvor <a href="/wiki/Svjetlost" title="Svjetlost">svjetlosti</a> šalje (emitira) u prostor u svim pravcima u jednoj <a href="/wiki/Sekunda" title="Sekunda">sekundi</a>, naziva se svjetlosni tok ili luminacijski fluks. Opkolimo li točkasti izvor svjetlosti jakosti 1 <a href="/wiki/Kandela" title="Kandela">kandele</a> (cd) <a href="/wiki/Kugla" title="Kugla">kuglom</a> <a href="/wiki/Promjer" title="Promjer">promjera</a> 1 <a href="/wiki/Metar" title="Metar">metar</a> (m), onda je količina svjetlosti što prolazi kroz 1 <a href="/wiki/%C4%8Cetvorni_metar" title="Četvorni metar">m<sup>2</sup></a> kugle <a href="/wiki/Mjerna_jedinica" title="Mjerna jedinica">mjerna jedinica</a> za svjetlosni tok i zove se 1 <a href="/wiki/Lumen" title="Lumen">lumen</a> (lm). <a href="/wiki/Prostorni_kut" title="Prostorni kut">Prostorni kut</a> koji pripada <a href="/wiki/Plo%C5%A1tina" class="mw-redirect" title="Ploština">ploštini</a> od 1 m<sup>2</sup> je jedinični prostorni kut i zove se <a href="/wiki/Steradijan" title="Steradijan">steradijan</a> (sr). Budući da je ploština kugle 4r<sup>2</sup>π, to je ploština jedinične kugle (r = 1 m) jednaka 4π ili 12,57 m<sup>2</sup>. Znači kugla polumjera 1 m ima 12,57 steradijana. Prema tome možemo reći: <b>1 lumen je onaj svjetlosni tok koji daje točkasti izvor svjetlosti od 1 kandele u prostorni kut od 1 steradijana</b>. </p><p>Ako izvor svjetlosti šalje svjetlost <i>t</i> sekunda, onda je ukupna količina svjetlosti koju on daje jednaka umnošku vremena: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle Q_{s}=\Phi _{s}\cdot t}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>Q</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>=</mo> <msub> <mi mathvariant="normal">&#x03A6;<!-- Φ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>t</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Q_{s}=\Phi _{s}\cdot t}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/10106033bf0a243eff898d57e2f9e1cf141ff845" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:11.14ex; height:2.509ex;" alt="{\displaystyle Q_{s}=\Phi _{s}\cdot t}"></span></dd></dl> <p>Svjetlosna energija mjeri se lumensekundama ili lumen sekundama (lm∙s) ili lumensatima (lm∙ h). Kako izvor <a href="/wiki/Svjetlosna_jakost" title="Svjetlosna jakost">svjetlosti jakosti</a> 1 <a href="/wiki/Kandela" title="Kandela">kandela</a> šalje u 1 steradijan tok svjetlosti od 1 lumen, to će kroz ploštinu od 4π = 12,57 m<sup>2</sup> slati svjetlosni tok 12,57 lm. Općenito, izvor svjetlosti jakosti (<a href="/wiki/Svjetlosna_jakost" title="Svjetlosna jakost">svjetlosna jakost</a>) <i>I<sub>s</sub></i> (u kandelama) dat će svjetlosni tok (u lumenima): </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Phi _{s}=4\cdot \pi \cdot I_{s}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi mathvariant="normal">&#x03A6;<!-- Φ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>=</mo> <mn>4</mn> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>&#x03C0;<!-- π --></mi> <mo>&#x22C5;<!-- ⋅ --></mo> <msub> <mi>I</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Phi _{s}=4\cdot \pi \cdot I_{s}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/68913a3a433b2d9e918fe324414bcd186f5c5bf1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:13.659ex; height:2.509ex;" alt="{\displaystyle \Phi _{s}=4\cdot \pi \cdot I_{s}}"></span></dd></dl> <p>a odatle je <a href="/wiki/Svjetlosna_jakost" title="Svjetlosna jakost">svjetlosna jakost</a> (u <a href="/wiki/Kandela" title="Kandela">kandelama</a>):<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle I_{s}={\frac {4\cdot \pi }{\Phi _{s}}}\ }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>I</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>4</mn> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>&#x03C0;<!-- π --></mi> </mrow> <msub> <mi mathvariant="normal">&#x03A6;<!-- Φ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> </mfrac> </mrow> <mtext>&#xA0;</mtext> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle I_{s}={\frac {4\cdot \pi }{\Phi _{s}}}\ }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/bd068658ef19f47fcc0eb8ff651f1c89ab5fbd58" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.338ex; width:10.715ex; height:5.676ex;" alt="{\displaystyle I_{s}={\frac {4\cdot \pi }{\Phi _{s}}}\ }"></span></dd></dl> <div class="mw-heading mw-heading3"><h3 id="Primjeri">Primjeri</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Luks&amp;veaction=edit&amp;section=5" title="Uredi odlomak: Primjeri" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Luks&amp;action=edit&amp;section=5" title="Uredi kôd odjeljka Primjeri"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable" style="width:500px;"> <caption><b>Usporedna tablica svjetlosnog toka nekih izvora svjetlosti</b><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> </caption> <tbody><tr> <th scope="col" style="text-align: left;">Izvor </th> <th scope="col">Svjetlosni tok (<a href="/wiki/Lumen" title="Lumen">lumen</a>) </th></tr> <tr> <td align="left">37&#160;<a href="/wiki/Vat" title="Vat">mW</a> bijela <a href="/wiki/LED" class="mw-redirect" title="LED">LED</a> (<a href="/wiki/Svijetle%C4%87a_dioda" class="mw-redirect" title="Svijetleća dioda">svijetleća dioda</a>)</td> <td align="center">0,20 </td></tr> <tr> <td align="left">15&#160;mW zeleni <a href="/wiki/Laser" title="Laser">laser</a> (532&#160;<a href="/wiki/Metar" title="Metar">nm</a> <a href="/wiki/Valna_duljina" title="Valna duljina">valna duljina</a></td> <td align="center">8,4 </td></tr> <tr> <td align="left">1 W bijela LED svjetiljka</td> <td align="center">25 – 120 </td></tr> <tr> <td align="left">Petrolejka</td> <td align="center">100 </td></tr> <tr> <td align="left">40 W <a href="/wiki/Elektri%C4%8Dna_%C5%BEarulja" title="Električna žarulja">električna žarulja</a></td> <td align="center">325 </td></tr> <tr> <td align="left">7 W bijela LED svjetiljka</td> <td align="center">450 </td></tr> <tr> <td align="left">18 W <a href="/wiki/Fluorescentna_cijev" title="Fluorescentna cijev">fluorescentna cijev</a></td> <td align="center">1 250 </td></tr> <tr> <td align="left">100 W električna žarulja</td> <td align="center">1 750 </td></tr> <tr> <td align="left">40 W fluorescentna cijev</td> <td align="center">2 800 </td></tr> <tr> <td align="left">35 W <a href="/wiki/Elektrolu%C4%8Dna_svjetiljka" title="Elektrolučna svjetiljka">elektrolučna svjetiljka</a> (<a href="/wiki/Ksenon" title="Ksenon">ksenon</a>)</td> <td align="center">2 200 – 3 200 </td></tr> <tr> <td align="left">100 W fluorescentna cijev</td> <td align="center">8 000 </td></tr> <tr> <td align="left">127 W <a href="/wiki/Natrijska_svjetiljka" title="Natrijska svjetiljka">natrijska svjetiljka</a></td> <td align="center">25 000 </td></tr> <tr> <td align="left">400 W halogena žarulja</td> <td align="center">40 000 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Izvori">Izvori</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Luks&amp;veaction=edit&amp;section=6" title="Uredi odlomak: Izvori" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Luks&amp;action=edit&amp;section=6" title="Uredi kôd odjeljka Izvori"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r6541845">.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-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"> <b>luks</b>, <a rel="nofollow" class="external autonumber" href="http://www.enciklopedija.hr/natuknica.aspx?ID=37524">[1]</a> "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2016.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"> <b>osvjetljenje (iluminacija)</b>, <a rel="nofollow" class="external autonumber" href="http://www.enciklopedija.hr/natuknica.aspx?ID=45823">[2]</a> "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2016.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"> <b>fotometrija</b>, <a rel="nofollow" class="external autonumber" href="http://www.enciklopedija.hr/Natuknica.aspx?ID=20266">[3]</a> "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2016.</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"> Velimir Kruz: "Tehnička fizika za tehničke škole", "Školska knjiga" Zagreb, 1969.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r7012897">.mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"»""«"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}</style><cite id="CITEREFSzokolay2008" class="citation book cs1">Szokolay, S. V. 2008. <a rel="nofollow" class="external text" href="http://books.google.com/books?id=jfISC1m3FqUC&amp;lpg=PA143"><i>Introduction to Architectural Science: The Basis of Sustainable Design</i></a>. Second&#160;izdanje. Routledge. str.&#160;143. <a href="/wiki/ISBN" class="mw-redirect" title="ISBN">ISBN</a>&#160;<a href="/wiki/Posebno:Tra%C5%BEi_ISBN/9780750687041" title="Posebno:Traži ISBN/9780750687041"><bdi>9780750687041</bdi></a></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Introduction+to+Architectural+Science%3A+The+Basis+of+Sustainable+Design&amp;rft.pages=143&amp;rft.edition=Second&amp;rft.pub=Routledge&amp;rft.date=2008&amp;rft.isbn=9780750687041&amp;rft.aulast=Szokolay&amp;rft.aufirst=S.+V.&amp;rft_id=http%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DjfISC1m3FqUC%26lpg%3DPA143&amp;rfr_id=info%3Asid%2Fhr.wikipedia.org%3ALuks" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7012897"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="http://books.google.com/books?id=Mgrd6ecnBnwC&amp;lpg=PA12"><i>BeLight</i></a>. <b>3</b>. Trendforce. 2010. str.&#160;10–12</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=BeLight&amp;rft.pages=10-12&amp;rft.pub=Trendforce&amp;rft.date=2010&amp;rft_id=http%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DMgrd6ecnBnwC%26lpg%3DPA12&amp;rfr_id=info%3Asid%2Fhr.wikipedia.org%3ALuks" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7012897"><cite id="CITEREFJahne2004" class="citation book cs1">Jahne, Bernd. 2004. <a rel="nofollow" class="external text" href="http://books.google.com/books?id=HcGBWtPF0PUC&amp;lpg=PA111"><i>Practical Handbook on Image Processing for Scientific and Technical Applications</i></a>. Second&#160;izdanje. CRC. str.&#160;111. <a href="/wiki/ISBN" class="mw-redirect" title="ISBN">ISBN</a>&#160;<a href="/wiki/Posebno:Tra%C5%BEi_ISBN/9780849390302" title="Posebno:Traži ISBN/9780849390302"><bdi>9780849390302</bdi></a></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Practical+Handbook+on+Image+Processing+for+Scientific+and+Technical+Applications&amp;rft.pages=111&amp;rft.edition=Second&amp;rft.pub=CRC&amp;rft.date=2004&amp;rft.isbn=9780849390302&amp;rft.aulast=Jahne&amp;rft.aufirst=Bernd&amp;rft_id=http%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DHcGBWtPF0PUC%26lpg%3DPA111&amp;rfr_id=info%3Asid%2Fhr.wikipedia.org%3ALuks" class="Z3988"></span></span> </li> </ol></div></div> <table class="navbox" cellspacing="0" style=";"><tbody><tr><td style="padding:2px;"><table cellspacing="0" class="nowraplinks collapsible autocollapse" style="width:100%;background:transparent;color:inherit;;"><tbody><tr><th style=";" colspan="2" class="navbox-naslov"><div style="float:left; width:6em;text-align:left;"><div class="noprint plainlinksneverexpand navbar" style="background-color:transparent; padding:0; white-space:nowrap; font-weight:normal; font-variant:small-caps; ;;border:none;;"><a href="/wiki/Predlo%C5%BEak:SI_izvedene" title="Predložak:SI izvedene"><span title="Vidi ovaj predložak." style=";;border:none;;">v</span></a>&#160;&#8226; <a class="external text" href="https://hr.wikipedia.org/w/index.php?title=Predlo%C5%BEak:SI_izvedene&amp;action=edit"><span style="color:#002bb8;;;border:none;;" title="Možete urediti ovaj predložak. Prije spremanja provjerite kako će izgledati.">u</span></a></div></div><span style="font-size:110%;"><a href="/wiki/SI_izvedene_jedinice" title="SI izvedene jedinice">SI izvedene jedinice</a></span></th></tr><tr style="height:2px;"><td></td></tr><tr><td colspan="2" style="width:100%;padding:0px;;;" class="navbox-popis navbox-neparni"><div style="padding:0em 0.25em"><a href="/wiki/Celzij" title="Celzij">celzij</a> • <a href="/wiki/%C4%8Cetvorni_metar" title="Četvorni metar">četvorni metar</a> • <a href="/wiki/D%C5%BEul" title="Džul">džul</a> • <a href="/wiki/Farad" title="Farad">farad</a> • <a href="/wiki/Henri" title="Henri">henri</a> • <a href="/wiki/Herc" title="Herc">herc</a> • <a href="/wiki/Katal" title="Katal">katal</a> • <a href="/wiki/Kilogram_po_metru_kubnom" title="Kilogram po metru kubnom">kilogram po metru kubnom</a> • <a href="/wiki/Kubi%C4%8Dni_metar" title="Kubični metar">kubični metar</a> • <a href="/wiki/Kubni_metar_u_sekundi" title="Kubni metar u sekundi">kubni metar u sekundi</a> • <a href="/wiki/Kulon" title="Kulon">kulon</a> • <a class="mw-selflink selflink">luks</a> • <a href="/wiki/Lumen" title="Lumen">lumen</a> • <a href="/wiki/Metar_u_sekundi" title="Metar u sekundi">metar u sekundi</a> • <a href="/wiki/Metar_u_sekundi_na_kvadrat" title="Metar u sekundi na kvadrat">metar u sekundi na kvadrat</a> • <a href="/wiki/Njutn" title="Njutn">njutn</a> • <a href="/wiki/Om" title="Om">om</a> • <a href="/wiki/Paskal" title="Paskal">paskal</a> • <a href="/wiki/Radijan" title="Radijan">radijan</a> • <a href="/wiki/Simens" title="Simens">simens</a> • <a href="/wiki/Tesla" title="Tesla">tesla</a> • <a href="/wiki/Vat" title="Vat">vat</a> • <a href="/wiki/Veber" title="Veber">veber</a> • <a href="/wiki/Volt" title="Volt">volt</a></div></td></tr></tbody></table></td></tr></tbody></table> <!-- NewPP limit report Parsed by mw‐web.eqiad.main‐7f58d5dcf5‐pdvr4 Cached time: 20241109205409 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 0.192 seconds Real time usage: 0.310 seconds Preprocessor visited node count: 657/1000000 Post‐expand include size: 12303/2097152 bytes Template argument size: 1102/2097152 bytes Highest expansion depth: 10/100 Expensive parser function count: 3/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 13282/5000000 bytes Lua time usage: 0.076/10.000 seconds Lua memory usage: 2953733/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 170.319 1 -total 58.75% 100.060 1 Predložak:Izvori 48.96% 83.389 3 Predložak:Cite_book 24.17% 41.165 2 Predložak:Glavni 10.79% 18.371 1 Predložak:SI_izvedene 8.73% 14.872 1 Predložak:Navigacija 4.51% 7.674 1 Predložak:Tnavbar 2.15% 3.666 1 Predložak:Bull 1.90% 3.232 1 Predložak:Preusmjerava --> <!-- Saved in parser cache with key hrwiki:pcache:idhash:98327-0!canonical and timestamp 20241109205409 and revision id 6228377. 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