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meskipun, hal itu tidak diwajibkan" class=""><span>Buat akun baru</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=Istimewa:Masuk_log&returnto=Lensa+Fresnel" title="Anda disarankan untuk masuk log, meskipun hal itu tidak diwajibkan. [o]" accesskey="o" class=""><span>Masuk log</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="Opsi lainnya" > <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="Perkakas pribadi" > <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">Perkakas pribadi</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Menu pengguna" > <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_id.wikipedia.org&uselang=id"><span>Menyumbang</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Istimewa:Buat_akun&returnto=Lensa+Fresnel" title="Anda dianjurkan untuk membuat akun dan masuk log; meskipun, hal itu tidak diwajibkan"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Buat akun baru</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Istimewa:Masuk_log&returnto=Lensa+Fresnel" title="Anda disarankan untuk masuk log, meskipun hal itu tidak diwajibkan. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Masuk log</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"> Halaman penyunting yang telah keluar log <a href="/wiki/Bantuan:Pengantar" aria-label="Pelajari lebih lanjut tentang menyunting"><span>pelajari lebih lanjut</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/Istimewa:Kontribusi_saya" title="Daftar suntingan yang dibuat dari alamat IP ini [y]" accesskey="y"><span>Kontribusi</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Istimewa:Pembicaraan_saya" title="Pembicaraan tentang suntingan dari alamat IP ini [n]" accesskey="n"><span>Pembicaraan</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="Situs"> <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="Daftar isi" 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">Daftar isi</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">pindah ke bilah sisi</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">sembunyikan</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">Awal</div> </a> </li> <li id="toc-Referensi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referensi"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Referensi</span> </div> </a> <ul id="toc-Referensi-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="Daftar isi" 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="Gulingkan daftar isi" > <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">Gulingkan daftar isi</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">Lensa Fresnel</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="Pergi ke artikel dalam bahasa lain. Terdapat 48 bahasa" > <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-48" 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">48 bahasa</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Fresnel-Linse" title="Fresnel-Linse – Jerman (Swiss)" lang="gsw" hreflang="gsw" data-title="Fresnel-Linse" data-language-autonym="Alemannisch" data-language-local-name="Jerman (Swiss)" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B9%D8%AF%D8%B3%D8%A9_%D9%81%D8%B1%D9%8A%D9%86%D9%84" title="عدسة فرينل – Arab" lang="ar" hreflang="ar" data-title="عدسة فرينل" data-language-autonym="العربية" data-language-local-name="Arab" 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/Lente_de_Fresnel" title="Lente de Fresnel – Asturia" lang="ast" hreflang="ast" data-title="Lente de Fresnel" data-language-autonym="Asturianu" data-language-local-name="Asturia" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%A4%D1%80%D0%B5%D0%BD%D0%B5%D0%BB%D1%8C_%D0%BB%D0%B8%D0%BD%D0%B7%D0%B0%D2%BB%D1%8B" title="Френель линзаһы – Bashkir" lang="ba" hreflang="ba" data-title="Френель линзаһы" data-language-autonym="Башҡортса" data-language-local-name="Bashkir" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A4%D1%80%D0%B5%D0%BD%D0%B5%D0%BB%D0%BE%D0%B2%D0%B0_%D0%BB%D0%B5%D1%89%D0%B0" title="Френелова леща – Bulgaria" lang="bg" hreflang="bg" data-title="Френелова леща" data-language-autonym="Български" data-language-local-name="Bulgaria" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Lent_de_Fresnel" title="Lent de Fresnel – Katalan" lang="ca" hreflang="ca" data-title="Lent de Fresnel" data-language-autonym="Català" data-language-local-name="Katalan" 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/Fresnelova_%C4%8Do%C4%8Dka" title="Fresnelova čočka – Cheska" lang="cs" hreflang="cs" data-title="Fresnelova čočka" data-language-autonym="Čeština" data-language-local-name="Cheska" 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/Fresnellinse" title="Fresnellinse – Dansk" lang="da" hreflang="da" data-title="Fresnellinse" data-language-autonym="Dansk" data-language-local-name="Dansk" 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/Fresnel-Linse" title="Fresnel-Linse – Jerman" lang="de" hreflang="de" data-title="Fresnel-Linse" data-language-autonym="Deutsch" data-language-local-name="Jerman" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Fresnel_lens" title="Fresnel lens – Inggris" lang="en" hreflang="en" data-title="Fresnel lens" data-language-autonym="English" data-language-local-name="Inggris" 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/Fresnel-lenso" title="Fresnel-lenso – Esperanto" lang="eo" hreflang="eo" data-title="Fresnel-lenso" 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/Lente_de_Fresnel" title="Lente de Fresnel – Spanyol" lang="es" hreflang="es" data-title="Lente de Fresnel" data-language-autonym="Español" data-language-local-name="Spanyol" 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/Fresneli_l%C3%A4%C3%A4ts" title="Fresneli lääts – Esti" lang="et" hreflang="et" data-title="Fresneli lääts" data-language-autonym="Eesti" data-language-local-name="Esti" 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/Fresnel_leiar" title="Fresnel leiar – Basque" lang="eu" hreflang="eu" data-title="Fresnel leiar" data-language-autonym="Euskara" data-language-local-name="Basque" 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/%D8%B9%D8%AF%D8%B3%DB%8C_%D9%81%D8%B1%D8%B3%D9%86%D9%84" title="عدسی فرسنل – Persia" lang="fa" hreflang="fa" data-title="عدسی فرسنل" data-language-autonym="فارسی" data-language-local-name="Persia" 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/Fresnel-linssi" title="Fresnel-linssi – Suomi" lang="fi" hreflang="fi" data-title="Fresnel-linssi" data-language-autonym="Suomi" data-language-local-name="Suomi" 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/Lentille_de_Fresnel" title="Lentille de Fresnel – Prancis" lang="fr" hreflang="fr" data-title="Lentille de Fresnel" data-language-autonym="Français" data-language-local-name="Prancis" 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/Fresnel-Lins" title="Fresnel-Lins – Frisia Utara" lang="frr" hreflang="frr" data-title="Fresnel-Lins" data-language-autonym="Nordfriisk" data-language-local-name="Frisia Utara" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Lente_de_Fresnel" title="Lente de Fresnel – Galisia" lang="gl" hreflang="gl" data-title="Lente de Fresnel" data-language-autonym="Galego" data-language-local-name="Galisia" 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%A2%D7%93%D7%A9%D7%AA_%D7%A4%D7%A8%D7%A0%D7%9C" title="עדשת פרנל – Ibrani" lang="he" hreflang="he" data-title="עדשת פרנל" data-language-autonym="עברית" data-language-local-name="Ibrani" 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%AB%E0%A5%8D%E0%A4%B0%E0%A5%87%E0%A4%B8%E0%A4%A8%E0%A5%87%E0%A4%B2_%E0%A4%A4%E0%A4%BE%E0%A4%B2" title="फ्रेसनेल ताल – Hindi" lang="hi" hreflang="hi" data-title="फ्रेसनेल ताल" data-language-autonym="हिन्दी" data-language-local-name="Hindi" 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/Fresnelova_zrcala" title="Fresnelova zrcala – Kroasia" lang="hr" hreflang="hr" data-title="Fresnelova zrcala" data-language-autonym="Hrvatski" data-language-local-name="Kroasia" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Lente_di_Fresnel" title="Lente di Fresnel – Italia" lang="it" hreflang="it" data-title="Lente di Fresnel" data-language-autonym="Italiano" data-language-local-name="Italia" 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%95%E3%83%AC%E3%83%8D%E3%83%AB%E3%83%AC%E3%83%B3%E3%82%BA" title="フレネルレンズ – Jepang" lang="ja" hreflang="ja" data-title="フレネルレンズ" data-language-autonym="日本語" data-language-local-name="Jepang" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A4%D1%80%D0%B5%D0%BD%D0%B5%D0%BB%D1%8C_%D0%BB%D0%B8%D0%BD%D0%B7%D0%B0%D1%81%D1%8B" title="Френель линзасы – Kazakh" lang="kk" hreflang="kk" data-title="Френель линзасы" data-language-autonym="Қазақша" data-language-local-name="Kazakh" 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/%ED%94%84%EB%A0%88%EB%84%AC_%EB%A0%8C%EC%A6%88" title="프레넬 렌즈 – Korea" lang="ko" hreflang="ko" data-title="프레넬 렌즈" data-language-autonym="한국어" data-language-local-name="Korea" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A4%D1%80%D0%B5%D0%BD%D0%B5%D0%BB%D0%BE%D0%B2%D0%B0_%D0%BB%D0%B5%D1%9C%D0%B0" title="Френелова леќа – Makedonia" lang="mk" hreflang="mk" data-title="Френелова леќа" data-language-autonym="Македонски" data-language-local-name="Makedonia" 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%A4%D1%80%D0%B5%D0%BD%D0%B5%D0%BB%D0%B8%D0%B9%D0%BD_%D0%BB%D0%B8%D0%BD%D0%B7" title="Френелийн линз – Mongolia" lang="mn" hreflang="mn" data-title="Френелийн линз" data-language-autonym="Монгол" data-language-local-name="Mongolia" 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/Kanta_Fresnel" title="Kanta Fresnel – Melayu" lang="ms" hreflang="ms" data-title="Kanta Fresnel" data-language-autonym="Bahasa Melayu" data-language-local-name="Melayu" 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/Fresnellens" title="Fresnellens – Belanda" lang="nl" hreflang="nl" data-title="Fresnellens" data-language-autonym="Nederlands" data-language-local-name="Belanda" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Fresnel-linse" title="Fresnel-linse – Bokmål Norwegia" lang="nb" hreflang="nb" data-title="Fresnel-linse" data-language-autonym="Norsk bokmål" data-language-local-name="Bokmål Norwegia" 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/Soczewka_Fresnela" title="Soczewka Fresnela – Polski" lang="pl" hreflang="pl" data-title="Soczewka Fresnela" data-language-autonym="Polski" data-language-local-name="Polski" 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/Lente_de_Fresnel" title="Lente de Fresnel – Portugis" lang="pt" hreflang="pt" data-title="Lente de Fresnel" data-language-autonym="Português" data-language-local-name="Portugis" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9B%D0%B8%D0%BD%D0%B7%D0%B0_%D0%A4%D1%80%D0%B5%D0%BD%D0%B5%D0%BB%D1%8F" title="Линза Френеля – Rusia" lang="ru" hreflang="ru" data-title="Линза Френеля" data-language-autonym="Русский" data-language-local-name="Rusia" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Fresnel_lens" title="Fresnel lens – Simple English" lang="en-simple" hreflang="en-simple" data-title="Fresnel lens" 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/Fresnelova_%C5%A1o%C5%A1ovka" title="Fresnelova šošovka – Slovak" lang="sk" hreflang="sk" data-title="Fresnelova šošovka" data-language-autonym="Slovenčina" data-language-local-name="Slovak" 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/Fresnelova_le%C4%8Da" title="Fresnelova leča – Sloven" lang="sl" hreflang="sl" data-title="Fresnelova leča" data-language-autonym="Slovenščina" data-language-local-name="Sloven" 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%A4%D1%80%D0%B5%D1%81%D0%BD%D0%B5%D0%BB%D0%BE%D0%B2%D0%B0_%D1%81%D0%BE%D1%87%D0%B8%D0%B2%D0%B0" title="Фреснелова сочива – Serbia" lang="sr" hreflang="sr" data-title="Фреснелова сочива" data-language-autonym="Српски / srpski" data-language-local-name="Serbia" 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/Fresnel-lins" title="Fresnel-lins – Swedia" lang="sv" hreflang="sv" data-title="Fresnel-lins" data-language-autonym="Svenska" data-language-local-name="Swedia" 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%AA%E0%AE%BF%E0%AE%B0%E0%AF%86%E0%AE%A9%E0%AF%86%E0%AE%B2%E0%AF%8D_%E0%AE%B5%E0%AE%BF%E0%AE%B2%E0%AF%8D%E0%AE%B2%E0%AF%88" title="பிரெனெல் வில்லை – Tamil" lang="ta" hreflang="ta" data-title="பிரெனெல் வில்லை" data-language-autonym="தமிழ்" data-language-local-name="Tamil" 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%B9%80%E0%B8%A5%E0%B8%99%E0%B8%AA%E0%B9%8C%E0%B9%81%E0%B8%9F%E0%B8%A3%E0%B9%81%E0%B8%99%E0%B8%A5" title="เลนส์แฟรแนล – Thai" lang="th" hreflang="th" data-title="เลนส์แฟรแนล" data-language-autonym="ไทย" data-language-local-name="Thai" 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/Fresnel_lens" title="Fresnel lens – Turki" lang="tr" hreflang="tr" data-title="Fresnel lens" data-language-autonym="Türkçe" data-language-local-name="Turki" 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%96%D0%BD%D0%B7%D0%B0_%D0%A4%D1%80%D0%B5%D0%BD%D0%B5%D0%BB%D1%8F" title="Лінза Френеля – Ukraina" lang="uk" hreflang="uk" data-title="Лінза Френеля" data-language-autonym="Українська" data-language-local-name="Ukraina" 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/Fresnel_linzalari" title="Fresnel linzalari – Uzbek" lang="uz" hreflang="uz" data-title="Fresnel linzalari" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" 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/Th%E1%BA%A5u_k%C3%ADnh_Fresnel" title="Thấu kính Fresnel – Vietnam" lang="vi" hreflang="vi" data-title="Thấu kính Fresnel" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnam" 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/Lente_Fresnel" title="Lente Fresnel – Warai" lang="war" hreflang="war" data-title="Lente Fresnel" 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.thumbinner{display:flex;flex-direction:column}.mw-parser-output .tmulti .trow{display:flex;flex-direction:row;clear:left;flex-wrap:wrap;width:100%;box-sizing:border-box}.mw-parser-output .tmulti .tsingle{margin:1px;float:left}.mw-parser-output .tmulti .theader{clear:both;font-weight:bold;text-align:center;align-self:center;background-color:transparent;width:100%}.mw-parser-output .tmulti .thumbcaption{text-align:left;background-color:transparent}.mw-parser-output .tmulti .text-align-left{text-align:left}.mw-parser-output .tmulti .text-align-right{text-align:right}.mw-parser-output .tmulti .text-align-center{text-align:center}@media all and (max-width:720px){.mw-parser-output .tmulti .thumbinner{width:100%!important;box-sizing:border-box;max-width:none!important;align-items:center}.mw-parser-output .tmulti .trow{justify-content:center}.mw-parser-output .tmulti .tsingle{float:none!important;max-width:100%!important;box-sizing:border-box;text-align:center}.mw-parser-output .tmulti .thumbcaption{text-align:center}}</style><div class="thumb tmulti tright"><div class="thumbinner" style="width:373px;max-width:373px"><div class="trow"><div class="tsingle" style="width:206px;max-width:206px"><div class="thumbimage"><span typeof="mw:File"><a href="/wiki/Berkas:Fresnel_lighthouse_lens_diagram.png" class="mw-file-description"><img alt="How a spherical Fresnel lens collimates light" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Fresnel_lighthouse_lens_diagram.png/204px-Fresnel_lighthouse_lens_diagram.png" decoding="async" width="204" height="240" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Fresnel_lighthouse_lens_diagram.png/306px-Fresnel_lighthouse_lens_diagram.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Fresnel_lighthouse_lens_diagram.png/408px-Fresnel_lighthouse_lens_diagram.png 2x" data-file-width="492" data-file-height="578" /></a></span></div><div class="thumbcaption">How a spherical Fresnel lens <a href="/w/index.php?title=Collimated_light&action=edit&redlink=1" class="new" title="Collimated light (halaman belum tersedia)">collimates light</a></div></div><div class="tsingle" style="width:163px;max-width:163px"><div class="thumbimage"><span typeof="mw:File"><a href="/wiki/Berkas:Fresnel_lens.svg" class="mw-file-description"><img alt="1 Cross section of a spherical Fresnel len, 2 Cross section of a conventional spherical lens" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Fresnel_lens.svg/161px-Fresnel_lens.svg.png" decoding="async" width="161" height="241" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Fresnel_lens.svg/242px-Fresnel_lens.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Fresnel_lens.svg/322px-Fresnel_lens.svg.png 2x" data-file-width="535" data-file-height="800" /></a></span></div><div class="thumbcaption">1: Cross section of a spherical Fresnel lens<br />2: Cross section of a conventional spherical <a href="/w/index.php?title=Lens_(optics)&action=edit&redlink=1" class="new" title="Lens (optics) (halaman belum tersedia)">plano-convex lens</a> of equivalent power</div></div></div></div></div> <p><b>Lensa Fresnel</b> adalah sebuah <a href="/wiki/Lensa" title="Lensa">lensa</a> yang dikembangkan oleh seorang fisikawan berkebangsaan Prancis, <a href="/w/index.php?title=Augustin-Jean_Fresnel&action=edit&redlink=1" class="new" title="Augustin-Jean Fresnel (halaman belum tersedia)">Augustin-Jean Fresnel</a> untuk aplikasi pada <a href="/wiki/Mercusuar" title="Mercusuar">mercusuar</a>. Konstruksi lensa didesain dengan panjang fokus yang pendek, <a href="/wiki/Jarak_fokus" title="Jarak fokus">jarak fokus</a> tak terhingga dan tebal lensa yang sangat tipis jika dibandingkan dengan lensa konvensional, agar dapat melewatkan lebih banyak cahaya sehingga lampu mercusuar dapat terlihat dari jarak yang lebih jauh. </p><p>Menurut majalah Smithsonian, lensa Fresnel yang pertama digunakan pada tahun 1823 pada mercusuar Cordouan di tanjung muara Gironde, sinar cahaya yang dipancarkan mampu terlihat dari jarak 20 mil (32 km). Seorang fisikawan Skotlandia, Sir David Brewster, memperkenalkan lensa ini untuk digunakan pada seluruh mercusuar di daratan Inggris. </p><p>Sebelum lensa Fresnel ditemukan, ide untuk membuat lensa yang lebih tipis dan ringan yang tersusun dari beberapa bagian terpisah dalam sebuah bingkai, sering disebut sebagai ide dari Georges Louis Leclerc dan Comte de Buffon Fresnel menyempurnakan penyusunan lensa-lensa konsentrik tersebut berdasarkan perhitungan zona Fresnel. </p><p>Lensa Fresnel terbagi menjadi 6 kategori berdasarkan panjang fokusnya. Kategori yang pertama merupakan lensa yang terbesar dengan panjang fokus 920 mm (36 inci). Kategori yang terakhir dengan lensa terkecil mempunyai panjang fokus 150 mm (5,9 inci).Pengembangan lensa Fresnel lebih lanjut menambahkan dua kategori lensa yang baru yaitu lensa Fresnel mesoradial dan hyper radial. </p> <div class="mw-heading mw-heading2"><h2 id="Referensi">Referensi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lensa_Fresnel&veaction=edit&section=1" title="Sunting bagian: Referensi" class="mw-editsection-visualeditor"><span>sunting</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Lensa_Fresnel&action=edit&section=1" title="Sunting kode sumber bagian: Referensi"><span>sunting sumber</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r18833634">.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> <ul><li>"The Fresnel Lens." The Keeper's Log (Winter 1985), pp. 12–14.</li> <li><a rel="nofollow" class="external text" href="http://www.uscg.mil/History/weblighthouses/aton_lighthousebib2007.pdf">Lighthouses, Lenses, Illuminants, Engineering & Augustin Fresnel: A Historical Bibliography on Works Published Through 2007</a>, United States Coast Guard.</li> <li><a href="/wiki/United_States_Coast_Guard" title="United States Coast Guard">United States Coast Guard</a>, <i>Aids to Navigation</i>, (<a href="/wiki/Washington,_D.C." title="Washington, D.C.">Washington, DC</a>: <a href="/w/index.php?title=U.S._Government_Printing_Office&action=edit&redlink=1" class="new" title="U.S. Government Printing Office (halaman belum tersedia)">U.S. Government Printing Office</a>, 1945).</li> <li><a href="/w/index.php?title=Templat:Cite_uscgnavbib&action=edit&redlink=1" class="new" title="Templat:Cite uscgnavbib (halaman belum tersedia)">Templat:Cite uscgnavbib</a></li> <li><a rel="nofollow" class="external text" href="http://www.uscg.mil/history/weblighthouses/docs/CG_Classical_Lens_in_Operation.pdf">United States Coast Guard, Fresnel Lenses Still in Operation.</a></li></ul> <style data-mw-deduplicate="TemplateStyles:r23035139">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:#f9f9f9}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r23782729">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons memiliki media mengenai <i><b><a href="https://commons.wikimedia.org/wiki/Category:Fresnel_lenses" class="extiw" title="commons:Category:Fresnel lenses"><span style="">Fresnel lenses</span></a></b></i>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="http://lighthousegetaway.com/lights/fresnel.html">Lighthouse Getaway: Fresnel lens</a> (contains photographs.)</li> <li><cite class="citation web">Pepper, Terry. <a rel="nofollow" class="external text" href="http://www.terrypepper.com/lights/index.htm">"<i>Seeing the Light: Lighthouses on the western Great Lakes</i>"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Seeing+the+Light%3A+Lighthouses+on+the+western+Great+Lakes&rft.au=Pepper%2C+Terry&rft_id=http%3A%2F%2Fwww.terrypepper.com%2Flights%2Findex.htm&rfr_id=info%3Asid%2Fid.wikipedia.org%3ALensa+Fresnel" class="Z3988"><span style="display:none;"> </span></span></li> <li><a rel="nofollow" class="external text" href="http://vega.org.uk/video/programme/226">How the Fresnel lens works.</a></li> <li><a rel="nofollow" class="external text" href="http://www.digitalartform.com/archives/2009/04/fresnel_lens_-.html">A computer analysis of the Fresnel lens cross section depicted in the 'graphic examples' section of this very Wikipedia article.</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20090520054046/http://www.digitalartform.com/archives/2009/04/fresnel_lens_-.html">Diarsipkan</a> 2009-05-20 di <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>.</li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; 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