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src=\"//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Treffpunkt.svg/40px-Treffpunkt.svg.png\" decoding=\"async\" width=\"26\" height=\"26\" class=\"mw-file-element\" srcset=\"//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Treffpunkt.svg/60px-Treffpunkt.svg.png 2x\" data-file-width=\"512\" data-file-height=\"512\" /\u003E\u003C/span\u003E\u003C/span\u003E\u003C/td\u003E\u003Ctd class=\"mbox-text\"\u003EOtvoren je \u003Ca href=\"/wiki/Wikipedija:Zahtjev_za_komentare/Nazivi_%C4%8Dlanaka\" title=\"Wikipedija:Zahtjev za komentare/Nazivi članaka\"\u003E\u003Cb\u003EZahtjev za komentare o nazivima članaka\u003C/b\u003E\u003C/a\u003E\u003C/td\u003E\u003C/tr\u003E\u003C/tbody\u003E\u003C/table\u003E\u003C/div\u003E\u003C/div\u003E\u003C/div\u003E\u003C/div\u003E";}}());</script></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="Mrežno mjesto"> <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="Sadržaj" 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">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-Svjetlosni_tok" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Svjetlosni_tok"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Svjetlosni tok</span> </div> </a> <ul id="toc-Svjetlosni_tok-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" title="Sadržaj" > <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">Lumen</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 69 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-69" 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">69 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%88%D9%85%D9%86" title="لومن – arapski" lang="ar" hreflang="ar" data-title="لومن" 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/Lumen" title="Lumen – asturijski" lang="ast" hreflang="ast" data-title="Lumen" 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%BC%D0%B5%D0%BD" title="Люмен – bjeloruski" lang="be" hreflang="be" data-title="Люмен" 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%BC%D1%8D%D0%BD" title="Люмэн – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Люмэн" 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%BC%D0%B5%D0%BD" title="Лумен – bugarski" lang="bg" hreflang="bg" data-title="Лумен" 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%A7%81%E0%A6%AE%E0%A7%87%E0%A6%A8" title="লুমেন – bangla" lang="bn" hreflang="bn" data-title="লুমেন" 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%BD%B4%E0%BC%8B%E0%BD%98%E0%BD%BA%E0%BD%93%E0%BC%8D" title="ལུ་མེན། – tibetski" lang="bo" hreflang="bo" data-title="ལུ་མེན།" 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/Lumen_(jedinica)" title="Lumen (jedinica) – bosanski" lang="bs" hreflang="bs" data-title="Lumen (jedinica)" 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/Lumen" title="Lumen – katalonski" lang="ca" hreflang="ca" data-title="Lumen" 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/Lumen" title="Lumen – češki" lang="cs" hreflang="cs" data-title="Lumen" data-language-autonym="Čeština" data-language-local-name="češki" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9B%D1%8E%D0%BC%D0%B5%D0%BD" title="Люмен – čuvaški" lang="cv" hreflang="cv" data-title="Люмен" data-language-autonym="Чӑвашла" data-language-local-name="čuvaški" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Lumen" title="Lumen – danski" lang="da" hreflang="da" data-title="Lumen" 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/Lumen_(Einheit)" title="Lumen (Einheit) – njemački" lang="de" hreflang="de" data-title="Lumen (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%8D%CE%BC%CE%B5%CE%BD_(%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="Λούμεν (μονάδα μέτρησης) – grčki" lang="el" hreflang="el" data-title="Λούμεν (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/Lumen_(unit)" title="Lumen (unit) – engleski" lang="en" hreflang="en" data-title="Lumen (unit)" 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/Lumeno" title="Lumeno – esperanto" lang="eo" hreflang="eo" data-title="Lumeno" 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/Lumen" title="Lumen – španjolski" lang="es" hreflang="es" data-title="Lumen" 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/Luumen" title="Luumen – estonski" lang="et" hreflang="et" data-title="Luumen" 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/Lumen_(unitatea)" title="Lumen (unitatea) – baskijski" lang="eu" hreflang="eu" data-title="Lumen (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%D9%85%D9%86_(%DB%8C%DA%A9%D8%A7)" title="لومن (یکا) – perzijski" lang="fa" hreflang="fa" data-title="لومن (یکا)" 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/Luumen" title="Luumen – finski" lang="fi" hreflang="fi" data-title="Luumen" 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/Lumen_(unit%C3%A9)" title="Lumen (unité) – francuski" lang="fr" hreflang="fr" data-title="Lumen (unité)" data-language-autonym="Français" data-language-local-name="francuski" 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/Lumen" title="Lumen – sjevernofrizijski" lang="frr" hreflang="frr" data-title="Lumen" data-language-autonym="Nordfriisk" data-language-local-name="sjevernofrizijski" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/L%C3%BAman" title="Lúman – irski" lang="ga" hreflang="ga" data-title="Lúman" 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/Lumen" title="Lumen – galicijski" lang="gl" hreflang="gl" data-title="Lumen" 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%9E%D7%9F" title="לומן – hebrejski" lang="he" hreflang="he" data-title="לומן" data-language-autonym="עברית" data-language-local-name="hebrejski" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Lumen_(m%C3%A9rt%C3%A9kegys%C3%A9g)" title="Lumen (mértékegység) – mađarski" lang="hu" hreflang="hu" data-title="Lumen (mértékegység)" 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%D5%B4%D5%A5%D5%B6_(%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="Լյումեն (չափման միավոր) – armenski" lang="hy" hreflang="hy" data-title="Լյումեն (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/Lumen_(satuan)" title="Lumen (satuan) – indonezijski" lang="id" hreflang="id" data-title="Lumen (satuan)" 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-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Lumeno" title="Lumeno – ido" lang="io" hreflang="io" data-title="Lumeno" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/L%C3%BAmen" title="Lúmen – islandski" lang="is" hreflang="is" data-title="Lúmen" 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/Lumen" title="Lumen – talijanski" lang="it" hreflang="it" data-title="Lumen" 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%83%BC%E3%83%A1%E3%83%B3" title="ルーメン – japanski" lang="ja" hreflang="ja" data-title="ルーメン" 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%9B%E1%83%94%E1%83%9C%E1%83%98" title="ლუმენი – gruzijski" lang="ka" hreflang="ka" data-title="ლუმენი" 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%BC%D0%B5%D0%BD" title="Люмен – kazaški" lang="kk" hreflang="kk" data-title="Люмен" 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%A3%A8%EB%A9%98" title="루멘 – korejski" lang="ko" hreflang="ko" data-title="루멘" 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%BC%D0%B5%D0%BD" title="Люмен – kirgiski" lang="ky" hreflang="ky" data-title="Люмен" 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/Liumenas" title="Liumenas – litavski" lang="lt" hreflang="lt" data-title="Liumenas" 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/L%C5%ABmens" title="Lūmens – latvijski" lang="lv" hreflang="lv" data-title="Lūmens" 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%BC%D0%B5%D0%BD_(%D0%B5%D0%B4%D0%B8%D0%BD%D0%B8%D1%86%D0%B0)" title="Лумен (единица) – makedonski" lang="mk" hreflang="mk" data-title="Лумен (единица)" data-language-autonym="Македонски" data-language-local-name="makedonski" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B2%E0%B5%82%E0%B4%AE%E0%B5%86%E0%B5%BB_(%E0%B4%AF%E0%B5%82%E0%B4%A3%E0%B4%BF%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%8D)" title="ലൂമെൻ (യൂണിറ്റ്) – malajalamski" lang="ml" hreflang="ml" data-title="ലൂമെൻ (യൂണിറ്റ്)" data-language-autonym="മലയാളം" data-language-local-name="malajalamski" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Lumen_(unit)" title="Lumen (unit) – malajski" lang="ms" hreflang="ms" data-title="Lumen (unit)" 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/Lumen_(eenheid)" title="Lumen (eenheid) – nizozemski" lang="nl" hreflang="nl" data-title="Lumen (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/Lumen" title="Lumen – norveški nynorsk" lang="nn" hreflang="nn" data-title="Lumen" 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/Lumen" title="Lumen – norveški bokmål" lang="nb" hreflang="nb" data-title="Lumen" 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/Lumen" title="Lumen – poljski" lang="pl" hreflang="pl" data-title="Lumen" 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/L%C3%BAmen" title="Lúmen – portugalski" lang="pt" hreflang="pt" data-title="Lúmen" 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/Lumen" title="Lumen – rumunjski" lang="ro" hreflang="ro" data-title="Lumen" 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%BC%D0%B5%D0%BD" title="Люмен – ruski" lang="ru" hreflang="ru" data-title="Люмен" 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/Lumen" title="Lumen – sicilijski" lang="scn" hreflang="scn" data-title="Lumen" 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/Lumen" title="Lumen – srpsko-hrvatski" lang="sh" hreflang="sh" data-title="Lumen" 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-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Lumen_(unit)" title="Lumen (unit) – Simple English" lang="en-simple" hreflang="en-simple" data-title="Lumen (unit)" 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/L%C3%BAmen_(jednotka)" title="Lúmen (jednotka) – slovački" lang="sk" hreflang="sk" data-title="Lúmen (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/Lumen" title="Lumen – slovenski" lang="sl" hreflang="sl" data-title="Lumen" data-language-autonym="Slovenščina" data-language-local-name="slovenski" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Lumeni" title="Lumeni – albanski" lang="sq" hreflang="sq" data-title="Lumeni" data-language-autonym="Shqip" data-language-local-name="albanski" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9B%D1%83%D0%BC%D0%B5%D0%BD" title="Лумен – srpski" lang="sr" hreflang="sr" data-title="Лумен" 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/Lumen_(enhet)" title="Lumen (enhet) – švedski" lang="sv" hreflang="sv" data-title="Lumen (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%AF%82%E0%AE%AE%E0%AE%A9%E0%AF%8D" title="லூமன் – tamilski" lang="ta" hreflang="ta" data-title="லூமன்" data-language-autonym="தமிழ்" data-language-local-name="tamilski" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%B2%E0%B1%8D%E0%B0%AF%E0%B1%82%E0%B0%AE%E0%B1%86%E0%B0%A8%E0%B1%8D" title="ల్యూమెన్ – teluški" lang="te" hreflang="te" data-title="ల్యూమెన్" data-language-autonym="తెలుగు" data-language-local-name="teluški" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A5%E0%B8%B9%E0%B9%80%E0%B8%A1%E0%B8%99" title="ลูเมน – tajlandski" lang="th" hreflang="th" data-title="ลูเมน" 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%BCmen" title="Lümen – turski" lang="tr" hreflang="tr" data-title="Lümen" 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%BC%D0%B5%D0%BD" title="Люмен – ukrajinski" lang="uk" hreflang="uk" data-title="Люмен" data-language-autonym="Українська" data-language-local-name="ukrajinski" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D9%86%D9%88%D8%B1%DB%8C%DB%81_(%D8%A7%DA%A9%D8%A7%D8%A6%DB%8C)" title="نوریہ (اکائی) – urdski" lang="ur" hreflang="ur" data-title="نوریہ (اکائی)" data-language-autonym="اردو" data-language-local-name="urdski" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Lumen_(birlik)" title="Lumen (birlik) – uzbečki" lang="uz" hreflang="uz" data-title="Lumen (birlik)" 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/Lumen_(%C4%91%C6%A1n_v%E1%BB%8B)" title="Lumen (đơn vị) – vijetnamski" lang="vi" hreflang="vi" data-title="Lumen (đơn vị)" 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/%E6%B5%81%E6%98%8E" title="流明 – wu kineski" lang="wuu" hreflang="wuu" data-title="流明" 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-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%9A%E1%83%A3%E1%83%9B%E1%83%94%E1%83%9C%E1%83%98" title="ლუმენი – Mingrelian" lang="xmf" hreflang="xmf" data-title="ლუმენი" data-language-autonym="მარგალური" data-language-local-name="Mingrelian" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%B5%81%E6%98%8E" title="流明 – kineski" lang="zh" hreflang="zh" data-title="流明" 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-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E6%B5%81%E6%98%8E" title="流明 – kantonski" lang="yue" hreflang="yue" data-title="流明" 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/Q484092#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/Lumen" 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:Lumen&action=edit&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/Lumen"><span>Čitaj</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Lumen&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=Lumen&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=Lumen&action=history" title="Ranije izmjene na ovoj stranici [h]" accesskey="h"><span>Vidi 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href="/wiki/Lumen"><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=Lumen&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=Lumen&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=Lumen&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/Lumen" 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/Lumen" 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="//hr.wikipedia.org/wiki/Wikipedija:Upload" title="Postavi datoteke [u]" accesskey="u"><span>Postavi datoteku</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Lumen&oldid=7148764" 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=Lumen&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&page=Lumen&id=7148764&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&url=https%3A%2F%2Fhr.wikipedia.org%2Fwiki%2FLumen"><span>Skraćeni URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Posebno:QrCode&url=https%3A%2F%2Fhr.wikipedia.org%2Fwiki%2FLumen"><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&bookcmd=book_creator&referer=Lumen"><span>Stvori knjigu</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Posebno:DownloadAsPdf&page=Lumen&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=Lumen&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/Q484092" 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"> <dl><dd><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>Ovo je glavno značenje pojma <b>Lumen</b>. Za druga značenja pogledajte <a href="/w/index.php?title=Lumen_(razdvojba)&action=edit&redlink=1" class="new" title="Lumen (razdvojba) (stranica ne postoji)">Lumen (razdvojba)</a>.</i></dd></dl></div> <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 lumena.</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 lumena.</figcaption></figure> <p><b>Lumen</b> (<a href="/wiki/Latinski_jezik" title="Latinski jezik">lat</a>.: svjetlost) je <a href="/wiki/Mjerna_jedinica" title="Mjerna jedinica">mjerna jedinica</a> (oznaka lm) za <a href="/wiki/Svjetlosni_tok" title="Svjetlosni tok">svjetlosni tok</a> u <a href="/wiki/SI" class="mw-redirect" title="SI">Međunarodnom sustavu jedinica (SI)</a> i ubraja se u <a href="/wiki/Izvedene_jedinice_SI" class="mw-redirect" title="Izvedene jedinice SI">izvedene jedinice</a>. Određuje se kao svjetlosni tok što ga u <a href="/wiki/Prostorni_kut" title="Prostorni kut">prostorni kut</a> od jednog <a href="/wiki/Steradijan" title="Steradijan">steradijana</a> šalje (emitira) svjetlosni izvor kojemu je <a href="/wiki/Svjetlosna_jakost" title="Svjetlosna jakost">svjetlosna jakost</a> u svim smjerovima jednaka jednoj <a href="/wiki/Kandela" title="Kandela">kandeli</a> (cd):<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <dl><dd>1 lm = 1 <a href="/wiki/Kandela" title="Kandela">cd</a>·<a href="/wiki/Steradijan" title="Steradijan">sr</a></dd></dl> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Svjetlosni_tok">Svjetlosni tok</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lumen&veaction=edit&section=1" title="Uredi odlomak: Svjetlosni tok" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Lumen&action=edit&section=1" title="Uredi kôd odjeljka Svjetlosni tok"><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/Svjetlosni_tok" title="Svjetlosni tok">Svjetlosni tok</a></div></i></div> <p><b>Svjetlosni tok</b>, <b>luminacijski fluks</b> ili <b>svjetlosna snaga</b> (oznaka <i>Ф<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> koja opisuje <a href="/wiki/Snaga" title="Snaga">snagu</a> odaslanoga, prenesenoga ili primljenoga svjetlosnog <a href="/wiki/Zra%C4%8Denje" class="mw-redirect mw-disambig" title="Zračenje">zračenja</a>; određena je kao umnožak svjetlosne jakosti <i>I<sub>s</sub></i> i <a href="/wiki/Kut" title="Kut">ugla</a> osvjetljenja <i>ω</i>: </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}=I_{s}\cdot \omega }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi mathvariant="normal">Φ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>I</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>⋅</mo> <mi>ω</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Phi _{s}=I_{s}\cdot \omega }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e4617f778ecac0352a436e96b783d4b467f558df" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:10.931ex; height:2.509ex;" alt="{\displaystyle \Phi _{s}=I_{s}\cdot \omega }" /></span></dd></dl> <p><a href="/wiki/Mjerna_jedinica" title="Mjerna jedinica">Mjerna jedinica</a> svjetlosnoga toka jest lumen (lm).<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</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=Lumen&veaction=edit&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=Lumen&action=edit&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">[</span>3<span class="cite-bracket">]</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=Lumen&veaction=edit&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=Lumen&action=edit&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 <b>luminacijski intenzitet</b> </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 <b>luminancija</b> </td></tr> <tr> <td><a href="/wiki/Osvjetljenje" title="Osvjetljenje">Osvjetljenje</a></td> <td><i>E<sub>s</sub></i></td> <td><a href="/wiki/Luks" title="Luks">luks</a> (lm/m<sup>2</sup>)</td> <td>lx</td> <td>naziva se i <b>iluminacija</b> </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=Lumen&veaction=edit&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=Lumen&action=edit&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 lumen (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">Φ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>⋅</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">Φ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>=</mo> <mn>4</mn> <mo>⋅</mo> <mi>π</mi> <mo>⋅</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">[</span>4<span class="cite-bracket">]</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>⋅</mo> <mi>π</mi> </mrow> <msub> <mi mathvariant="normal">Φ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> </mfrac> </mrow> <mtext> </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=Lumen&veaction=edit&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=Lumen&action=edit&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">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </caption> <tbody><tr> <th scope="col" style="text-align: left;">Izvor </th> <th scope="col"><a href="/wiki/Svjetlosni_tok" title="Svjetlosni tok">Svjetlosni tok</a> (lumen) </th></tr> <tr> <td align="left">37 <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 mW zeleni <a href="/wiki/Laser" title="Laser">laser</a> (532 <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=Lumen&veaction=edit&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=Lumen&action=edit&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"><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 class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.enciklopedija.hr/Natuknica.aspx?ID=37544">lumen</a>. <i>Hrvatska enciklopedija</i>. Leksikografski zavod Miroslav Krleža. 2016.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Hrvatska+enciklopedija&rft.atitle=lumen&rft.date=2016&rft_id=https%3A%2F%2Fwww.enciklopedija.hr%2FNatuknica.aspx%3FID%3D37544&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ALumen" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7012897" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.enciklopedija.hr/natuknica.aspx?ID=59120">svjetlosni tok (luminacijski fluks)</a>. <i>Hrvatska enciklopedija</i>. Leksikografski zavod Miroslav Krleža. 2016.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Hrvatska+enciklopedija&rft.atitle=svjetlosni+tok+%28luminacijski+fluks%29&rft.date=2016&rft_id=https%3A%2F%2Fwww.enciklopedija.hr%2Fnatuknica.aspx%3FID%3D59120&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ALumen" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7012897" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.enciklopedija.hr/Natuknica.aspx?ID=20266">fotometrija</a>. <i>Hrvatska enciklopedija</i>. Leksikografski zavod Miroslav Krleža. 2016.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Hrvatska+enciklopedija&rft.atitle=fotometrija&rft.date=2016&rft_id=https%3A%2F%2Fwww.enciklopedija.hr%2FNatuknica.aspx%3FID%3D20266&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ALumen" class="Z3988"></span></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"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7012897" /><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&lpg=PA143"><i>Introduction to Architectural Science: The Basis of Sustainable Design</i></a>. Second izdanje. Routledge. str. 143. <a href="/wiki/ISBN" class="mw-redirect" title="ISBN">ISBN</a> <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&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Introduction+to+Architectural+Science%3A+The+Basis+of+Sustainable+Design&rft.pages=143&rft.edition=Second&rft.pub=Routledge&rft.date=2008&rft.isbn=9780750687041&rft.aulast=Szokolay&rft.aufirst=S.+V.&rft_id=http%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DjfISC1m3FqUC%26lpg%3DPA143&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ALumen" 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&lpg=PA12"><i>BeLight</i></a>. <b>3</b>. Trendforce. 2010. str. 10–12</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=BeLight&rft.pages=10-12&rft.pub=Trendforce&rft.date=2010&rft_id=http%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DMgrd6ecnBnwC%26lpg%3DPA12&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ALumen" 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&lpg=PA111"><i>Practical Handbook on Image Processing for Scientific and Technical Applications</i></a>. Second izdanje. CRC. str. 111. <a href="/wiki/ISBN" class="mw-redirect" title="ISBN">ISBN</a> <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&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Practical+Handbook+on+Image+Processing+for+Scientific+and+Technical+Applications&rft.pages=111&rft.edition=Second&rft.pub=CRC&rft.date=2004&rft.isbn=9780849390302&rft.aulast=Jahne&rft.aufirst=Bernd&rft_id=http%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DHcGBWtPF0PUC%26lpg%3DPA111&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ALumen" class="Z3988"></span></span> </li> </ol></div></div> <div style="padding:3px"><div style="display:table-cell; vertical-align:middle; text-align:center; width:2em; font-family:serif; font-size:180%; padding-right:3px; letter-spacing:-0.1em; background:#f0e0b0">HE</div><div style="display:table-cell; vertical-align:middle; font-size:82%; padding-left:3px">Dio sadržaja ove stranice preuzet je iz mrežnog izdanja <a href="/wiki/Hrvatska_enciklopedija_(LZMK)" title="Hrvatska enciklopedija (LZMK)">Hrvatske enciklopedije</a> i nije slobodan za daljnju upotrebu pod uvjetima Wikipedijine licencije o sadržaju. 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