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<input class="cdx-text-input__input" type="search" name="search" placeholder="Cerca a Viquipèdia" aria-label="Cerca a Viquipèdia" autocapitalize="sentences" title="Cerca a la Viquipèdia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Especial:Cerca"> </div> <button class="cdx-button cdx-search-input__end-button">Cerca</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Eines personals"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Aparença"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Aparença" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Aparença</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ca.wikipedia.org&uselang=ca" class=""><span>Donatius</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Especial:Crea_compte&returnto=Lumen" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori" class=""><span>Crea un compte</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=Especial:Registre_i_entrada&returnto=Lumen" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o" class=""><span>Inicia la sessió</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="Més opcions" > <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="Eines personals" > <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">Eines personals</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Menú d'usuari" > <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_ca.wikipedia.org&uselang=ca"><span>Donatius</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Especial:Crea_compte&returnto=Lumen" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Crea un compte</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Especial:Registre_i_entrada&returnto=Lumen" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Inicia la sessió</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"> Pàgines per a editors no registrats <a href="/wiki/Ajuda:Introducci%C3%B3" aria-label="Vegeu més informació sobre l'edició"><span>més informació</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/Especial:Contribucions_pr%C3%B2pies" title="Una llista de les modificacions fetes des d'aquesta adreça IP [y]" accesskey="y"><span>Contribucions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Especial:Discussi%C3%B3_personal" title="Discussió sobre les edicions per aquesta adreça ip. [n]" accesskey="n"><span>Discussió per aquest IP</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="Lloc"> <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="Contingut" 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">Contingut</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">amaga</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">Inici</div> </a> </li> <li id="toc-Múltiples_i_submúltiples_del_SI" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Múltiples_i_submúltiples_del_SI"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Múltiples i submúltiples del SI</span> </div> </a> <ul id="toc-Múltiples_i_submúltiples_del_SI-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referències" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referències"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Referències</span> </div> </a> <ul id="toc-Referències-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliografia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliografia"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Bibliografia</span> </div> </a> <ul id="toc-Bibliografia-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="Contingut" 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="Commuta la taula de continguts." > <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">Commuta la taula de continguts.</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="Vés a un article en una altra llengua. Disponible en 69 llengües" > <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 llengües</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 - àrab" lang="ar" hreflang="ar" data-title="لومن" data-language-autonym="العربية" data-language-local-name="àrab" 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 - asturià" lang="ast" hreflang="ast" data-title="Lumen" data-language-autonym="Asturianu" data-language-local-name="asturià" 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 - belarús" lang="be" hreflang="be" data-title="Люмен" data-language-autonym="Беларуская" data-language-local-name="belarús" 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 - búlgar" lang="bg" hreflang="bg" data-title="Лумен" data-language-autonym="Български" data-language-local-name="búlgar" 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 - bengalí" lang="bn" hreflang="bn" data-title="লুমেন" data-language-autonym="বাংলা" data-language-local-name="bengalí" 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། - tibetà" lang="bo" hreflang="bo" data-title="ལུ་མེན།" data-language-autonym="བོད་ཡིག" data-language-local-name="tibetà" 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) - bosnià" lang="bs" hreflang="bs" data-title="Lumen (jedinica)" data-language-autonym="Bosanski" data-language-local-name="bosnià" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Lumen" title="Lumen - txec" lang="cs" hreflang="cs" data-title="Lumen" data-language-autonym="Čeština" data-language-local-name="txec" 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 - txuvaix" lang="cv" hreflang="cv" data-title="Люмен" data-language-autonym="Чӑвашла" data-language-local-name="txuvaix" 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 - danès" lang="da" hreflang="da" data-title="Lumen" data-language-autonym="Dansk" data-language-local-name="danès" 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) - alemany" lang="de" hreflang="de" data-title="Lumen (Einheit)" data-language-autonym="Deutsch" data-language-local-name="alemany" 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) - grec" lang="el" hreflang="el" data-title="Λούμεν (μονάδα μέτρησης)" data-language-autonym="Ελληνικά" data-language-local-name="grec" 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) - anglès" lang="en" hreflang="en" data-title="Lumen (unit)" data-language-autonym="English" data-language-local-name="anglès" 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 - espanyol" lang="es" hreflang="es" data-title="Lumen" data-language-autonym="Español" data-language-local-name="espanyol" 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 - estonià" lang="et" hreflang="et" data-title="Luumen" data-language-autonym="Eesti" data-language-local-name="estonià" 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) - basc" lang="eu" hreflang="eu" data-title="Lumen (unitatea)" data-language-autonym="Euskara" data-language-local-name="basc" 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) - persa" lang="fa" hreflang="fa" data-title="لومن (یکا)" data-language-autonym="فارسی" data-language-local-name="persa" 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 - finès" lang="fi" hreflang="fi" data-title="Luumen" data-language-autonym="Suomi" data-language-local-name="finès" 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) - francès" lang="fr" hreflang="fr" data-title="Lumen (unité)" data-language-autonym="Français" data-language-local-name="francès" 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 - frisó septentrional" lang="frr" hreflang="frr" data-title="Lumen" data-language-autonym="Nordfriisk" data-language-local-name="frisó septentrional" 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 - irlandès" lang="ga" hreflang="ga" data-title="Lúman" data-language-autonym="Gaeilge" data-language-local-name="irlandès" 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 - gallec" lang="gl" hreflang="gl" data-title="Lumen" data-language-autonym="Galego" data-language-local-name="gallec" 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 - hebreu" lang="he" hreflang="he" data-title="לומן" data-language-autonym="עברית" data-language-local-name="hebreu" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Lumen" title="Lumen - croat" lang="hr" hreflang="hr" data-title="Lumen" data-language-autonym="Hrvatski" data-language-local-name="croat" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Lumen_(m%C3%A9rt%C3%A9kegys%C3%A9g)" title="Lumen (mértékegység) - hongarès" lang="hu" hreflang="hu" data-title="Lumen (mértékegység)" data-language-autonym="Magyar" data-language-local-name="hongarès" 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) - armeni" lang="hy" hreflang="hy" data-title="Լյումեն (չափման միավոր)" data-language-autonym="Հայերեն" data-language-local-name="armeni" 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) - indonesi" lang="id" hreflang="id" data-title="Lumen (satuan)" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesi" 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 - islandès" lang="is" hreflang="is" data-title="Lúmen" data-language-autonym="Íslenska" data-language-local-name="islandès" 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 - italià" lang="it" hreflang="it" data-title="Lumen" data-language-autonym="Italiano" data-language-local-name="italià" 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 - japonès" lang="ja" hreflang="ja" data-title="ルーメン" data-language-autonym="日本語" data-language-local-name="japonès" 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 - georgià" lang="ka" hreflang="ka" data-title="ლუმენი" data-language-autonym="ქართული" data-language-local-name="georgià" 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 - kazakh" lang="kk" hreflang="kk" data-title="Люмен" 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/%EB%A3%A8%EB%A9%98" title="루멘 - coreà" lang="ko" hreflang="ko" data-title="루멘" data-language-autonym="한국어" data-language-local-name="coreà" 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 - kirguís" lang="ky" hreflang="ky" data-title="Люмен" data-language-autonym="Кыргызча" data-language-local-name="kirguís" 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 - lituà" lang="lt" hreflang="lt" data-title="Liumenas" data-language-autonym="Lietuvių" data-language-local-name="lituà" 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 - letó" lang="lv" hreflang="lv" data-title="Lūmens" data-language-autonym="Latviešu" data-language-local-name="letó" 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) - macedoni" lang="mk" hreflang="mk" data-title="Лумен (единица)" data-language-autonym="Македонски" data-language-local-name="macedoni" 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) - malaiàlam" lang="ml" hreflang="ml" data-title="ലൂമെൻ (യൂണിറ്റ്)" data-language-autonym="മലയാളം" data-language-local-name="malaiàlam" 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) - malai" lang="ms" hreflang="ms" data-title="Lumen (unit)" data-language-autonym="Bahasa Melayu" data-language-local-name="malai" 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) - neerlandès" lang="nl" hreflang="nl" data-title="Lumen (eenheid)" data-language-autonym="Nederlands" data-language-local-name="neerlandès" 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 - noruec nynorsk" lang="nn" hreflang="nn" data-title="Lumen" data-language-autonym="Norsk nynorsk" data-language-local-name="noruec 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 - noruec bokmål" lang="nb" hreflang="nb" data-title="Lumen" data-language-autonym="Norsk bokmål" data-language-local-name="noruec 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 - polonès" lang="pl" hreflang="pl" data-title="Lumen" data-language-autonym="Polski" data-language-local-name="polonès" 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 - portuguès" lang="pt" hreflang="pt" data-title="Lúmen" data-language-autonym="Português" data-language-local-name="portuguès" 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 - romanès" lang="ro" hreflang="ro" data-title="Lumen" data-language-autonym="Română" data-language-local-name="romanès" 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 - rus" lang="ru" hreflang="ru" data-title="Люмен" data-language-autonym="Русский" data-language-local-name="rus" 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 - sicilià" lang="scn" hreflang="scn" data-title="Lumen" data-language-autonym="Sicilianu" data-language-local-name="sicilià" 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 - serbocroat" lang="sh" hreflang="sh" data-title="Lumen" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbocroat" 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) - eslovac" lang="sk" hreflang="sk" data-title="Lúmen (jednotka)" data-language-autonym="Slovenčina" data-language-local-name="eslovac" 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 - eslovè" lang="sl" hreflang="sl" data-title="Lumen" data-language-autonym="Slovenščina" data-language-local-name="eslovè" 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 - albanès" lang="sq" hreflang="sq" data-title="Lumeni" data-language-autonym="Shqip" data-language-local-name="albanès" 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 - serbi" lang="sr" hreflang="sr" data-title="Лумен" data-language-autonym="Српски / srpski" data-language-local-name="serbi" 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) - suec" lang="sv" hreflang="sv" data-title="Lumen (enhet)" data-language-autonym="Svenska" data-language-local-name="suec" 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 - tàmil" lang="ta" hreflang="ta" data-title="லூமன்" data-language-autonym="தமிழ்" data-language-local-name="tàmil" 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 - telugu" lang="te" hreflang="te" data-title="ల్యూమెన్" data-language-autonym="తెలుగు" data-language-local-name="telugu" 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 - tai" lang="th" hreflang="th" data-title="ลูเมน" data-language-autonym="ไทย" data-language-local-name="tai" 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 - turc" lang="tr" hreflang="tr" data-title="Lümen" data-language-autonym="Türkçe" data-language-local-name="turc" 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 - ucraïnès" lang="uk" hreflang="uk" data-title="Люмен" data-language-autonym="Українська" data-language-local-name="ucraïnès" 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) - urdú" lang="ur" hreflang="ur" data-title="نوریہ (اکائی)" data-language-autonym="اردو" data-language-local-name="urdú" 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) - uzbek" lang="uz" hreflang="uz" data-title="Lumen (birlik)" 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/Lumen_(%C4%91%C6%A1n_v%E1%BB%8B)" title="Lumen (đơn vị) - vietnamita" lang="vi" hreflang="vi" data-title="Lumen (đơn vị)" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" 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 - xinès wu" lang="wuu" hreflang="wuu" data-title="流明" data-language-autonym="吴语" data-language-local-name="xinès wu" 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 - mingrelià" lang="xmf" hreflang="xmf" data-title="ლუმენი" data-language-autonym="მარგალური" data-language-local-name="mingrelià" 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 - xinès" lang="zh" hreflang="zh" data-title="流明" data-language-autonym="中文" data-language-local-name="xinès" 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 - cantonès" lang="yue" hreflang="yue" data-title="流明" data-language-autonym="粵語" data-language-local-name="cantonès" 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="Modifica enllaços interlingües" class="wbc-editpage">Modifica els enllaços</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="Espais de noms"> <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="Vegeu el contingut de la pàgina [c]" accesskey="c"><span>Pàgina</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Discussi%C3%B3:Lumen" rel="discussion" title="Discussió sobre el contingut d'aquesta pàgina [t]" accesskey="t"><span>Discussió</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="Canvia la variant de llengua" > <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">català</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="Vistes"> <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>Mostra</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Lumen&action=edit" title="Modifica el codi font d'aquesta pàgina [e]" accesskey="e"><span>Modifica</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Lumen&action=history" title="Versions antigues d'aquesta pàgina [h]" accesskey="h"><span>Mostra l'historial</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Eines de la pàgina"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Eines" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Eines</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Eines</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">amaga</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Més opcions" > <div class="vector-menu-heading"> Accions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Lumen"><span>Mostra</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Lumen&action=edit" title="Modifica el codi font d'aquesta pàgina [e]" accesskey="e"><span>Modifica</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>Mostra l'historial</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Especial:Enlla%C3%A7os/Lumen" title="Una llista de totes les pàgines wiki que enllacen amb aquesta [j]" accesskey="j"><span>Què hi enllaça</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Especial:Seguiment/Lumen" rel="nofollow" title="Canvis recents a pàgines enllaçades des d'aquesta pàgina [k]" accesskey="k"><span>Canvis relacionats</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Especial:P%C3%A0gines_especials" title="Llista totes les pàgines especials [q]" accesskey="q"><span>Pàgines especials</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Lumen&oldid=32977154" title="Enllaç permanent a aquesta revisió de la pàgina"><span>Enllaç permanent</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Lumen&action=info" title="Més informació sobre aquesta pàgina"><span>Informació de la pàgina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Especial:Citau&page=Lumen&id=32977154&wpFormIdentifier=titleform" title="Informació sobre com citar aquesta pàgina"><span>Citau aquest article</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Especial:UrlShortener&url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2FLumen"><span>Obtén una URL abreujada</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Especial:QrCode&url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2FLumen"><span>Descarrega el codi QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Imprimeix/exporta </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=Especial:Llibre&bookcmd=book_creator&referer=Lumen"><span>Crea un llibre</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Especial:DownloadAsPdf&page=Lumen&action=show-download-screen"><span>Baixa com a PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Lumen&printable=yes" title="Versió per a impressió d'aquesta pàgina [p]" accesskey="p"><span>Versió per a impressora</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"> En altres projectes </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="Enllaç a l'element del repositori de dades connectat [g]" accesskey="g"><span>Element 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.hatnote i{font-style:normal}@media screen{html.skin-theme-clientpref-night .mw-parser-output .hatnote{color:var(--color-inverted,#fff);background-color:var(--background-color-inverted,#101418)}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .hatnote{color:var(--color-inverted,#fff);background-color:var(--background-color-inverted,#101418)}}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style> <table class="hatnote" cellspacing="5"> <tbody><tr> <td style="width: 25px; vertical-align: top;"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Disambig_grey.svg/22px-Disambig_grey.svg.png" decoding="async" width="22" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Disambig_grey.svg/33px-Disambig_grey.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Disambig_grey.svg/44px-Disambig_grey.svg.png 2x" data-file-width="260" data-file-height="200" /></span></span> </td> <td>Aquest article tracta sobre la unitat de mesura del flux lluminós. Per al concepte biològic vegeu <a href="/wiki/Lumen_(biologia)" class="mw-redirect" title="Lumen (biologia)">Lumen (biologia)</a>. Per al personatge de la sèrie de dibuixos animats <a href="/wiki/Imp" title="Imp">Imp</a>, vegeu: <a href="/w/index.php?title=Lumen_(Imp)&action=edit&redlink=1" class="new" title="Lumen (Imp) (encara no existeix)">Lumen (Imp)</a> </td></tr></tbody></table> <table class="infobox" style="font-size:90%;width:25em"><caption style="font-weight:bold;color: #202122; background-color: #b0d1ad"><span style="float:left;"><span class="skin-invert" typeof="mw:File"><a href="/wiki/Fitxer:Noun_project_1842_flipped.svg" class="mw-file-description" title="Infotaula d'unitat"><img alt="Infotaula d'unitat" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/26/Noun_project_1842_flipped.svg/25px-Noun_project_1842_flipped.svg.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/26/Noun_project_1842_flipped.svg/38px-Noun_project_1842_flipped.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/26/Noun_project_1842_flipped.svg/50px-Noun_project_1842_flipped.svg.png 2x" data-file-width="100" data-file-height="100" /></a></span></span>lumen</caption><tbody><tr><th scope="row" class="infobox-label" style="text-align:left;color: #202122; background-color: #eeeeee;">Tipus</th><td class="infobox-data"><a href="/wiki/Unitats_derivades_del_SI" title="Unitats derivades del SI">unitat derivada del SI</a>, <a href="https://www.wikidata.org/wiki/Special:EntityPage/Q68618328" class="extiw" title="d:Special:EntityPage/Q68618328">unitat derivada del SI amb nom especial</a>, <a href="https://www.wikidata.org/wiki/Special:EntityPage/Q82047057" class="extiw" title="d:Special:EntityPage/Q82047057">unitat derivada en UCUM</a> i <a href="https://www.wikidata.org/wiki/Special:EntityPage/Q126870833" class="extiw" title="d:Special:EntityPage/Q126870833">unit of luminous flux</a> <sup>(en)</sup> <span class="mw-valign-baseline skin-invert" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q126870833?uselang=ca" title="Tradueix"><img alt="Tradueix" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Noun_Project_label_icon_1116097_cc_mirror.svg/10px-Noun_Project_label_icon_1116097_cc_mirror.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Noun_Project_label_icon_1116097_cc_mirror.svg/15px-Noun_Project_label_icon_1116097_cc_mirror.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Noun_Project_label_icon_1116097_cc_mirror.svg/20px-Noun_Project_label_icon_1116097_cc_mirror.svg.png 2x" data-file-width="158" data-file-height="161" /></a></span> <span class="penicon"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q484092?uselang=ca#P31" title="Modifica el valor a Wikidata"><img alt="Modifica el valor a Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/10px-Arbcom_ru_editing.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/15px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/20px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;color: #202122; background-color: #eeeeee;">Sistema d'unitats</th><td class="infobox-data"><a href="/wiki/Unitat_derivada_del_SI" class="mw-redirect" title="Unitat derivada del SI">Unitat derivada del SI</a></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;color: #202122; background-color: #eeeeee;">Unitat de</th><td class="infobox-data"><a href="/wiki/Flux_llumin%C3%B3s" title="Flux lluminós">Flux lluminós</a></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;color: #202122; background-color: #eeeeee;">Símbol</th><td class="infobox-data">lm</td></tr><tr><th colspan="2" class="infobox-header" style="text-align:center;color: #202122; background-color: #b0d1ad">Conversions d'unitats</th></tr><tr><th scope="row" class="infobox-label" style="text-align:left;color: #202122; background-color: #eeeeee;"><span style="white-space:nowrap;">   </span><a href="/wiki/Unitats_base_del_SI" class="mw-redirect" title="Unitats base del SI">Unitats base del SI</a></th><td class="infobox-data"><span style="white-space:nowrap;">   </span>1 <a href="/wiki/Candela" title="Candela">cd</a>⋅<a href="/wiki/Metre" title="Metre">m</a>²⋅<a href="/wiki/Metre" title="Metre">m</a><sup>-2</sup></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;color: #202122; background-color: #eeeeee;">A unitats del SI</th><td class="infobox-data">1 lm <span class="penicon"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q484092?uselang=ca#P2370" title="Modifica el valor a Wikidata"><img alt="Modifica el valor a Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/10px-Arbcom_ru_editing.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/15px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/20px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></span></td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:V-LIGHT_A314.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/V-LIGHT_A314.JPG/220px-V-LIGHT_A314.JPG" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/V-LIGHT_A314.JPG/330px-V-LIGHT_A314.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b5/V-LIGHT_A314.JPG/440px-V-LIGHT_A314.JPG 2x" data-file-width="3648" data-file-height="2736" /></a><figcaption>Una <a href="/wiki/L%C3%A0mpada_LED" class="mw-redirect" title="Làmpada LED">làmpada LED</a> capaç de generar un <a href="/wiki/Flux_llumin%C3%B3s" title="Flux lluminós">flux lluminós</a> de 470 lumens.</figcaption></figure> <p>El <b>lumen</b> és la unitat del <a href="/wiki/Sistema_Internacional_d%27Unitats" title="Sistema Internacional d'Unitats">SI</a> per al <a href="/wiki/Flux_llumin%C3%B3s" title="Flux lluminós">flux lluminós</a>. Es tracta d'una <a href="/wiki/Unitats_derivades_del_SI" title="Unitats derivades del SI">unitat derivada</a> amb nom propi i amb un símbol particular que són les lletres <b>lm</b>.<sup id="cite_ref-FOOTNOTEBIMP201926_1-0" class="reference"><a href="#cite_note-FOOTNOTEBIMP201926-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Originalment, el 1946, va rebre el nom de "lumen nou", però el 1948 es va abandonar l'adjectiu i va restar com a "lumen".<sup id="cite_ref-FOOTNOTEBIMP201948_2-0" class="reference"><a href="#cite_note-FOOTNOTEBIMP201948-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> El seu valor equival al flux lluminós que emet un focus puntual d'una <a href="/wiki/Candela" title="Candela">candela</a> d'<a href="/wiki/Intensitat_lluminosa" title="Intensitat lluminosa">intensitat</a> en un <a href="/wiki/Estereoradian" title="Estereoradian">estereoradian</a>:<sup id="cite_ref-FOOTNOTEBIMP201948_2-1" class="reference"><a href="#cite_note-FOOTNOTEBIMP201948-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <dl><dd>1 lm = 1 cd·sr = 1 cd·m²·m<sup>–2</sup></dd></dl> <p>El lumen i el <a href="/wiki/Lux" title="Lux">lux</a> deriven de la unitat de base <a href="/wiki/Candela" title="Candela">candela</a> i donen informació sobre la visió humana.<sup id="cite_ref-FOOTNOTEBIMP201929_3-0" class="reference"><a href="#cite_note-FOOTNOTEBIMP201929-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Múltiples_i_submúltiples_del_SI"><span id="M.C3.BAltiples_i_subm.C3.BAltiples_del_SI"></span>Múltiples i submúltiples del SI</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lumen&action=edit&section=1" title="Modifica la secció: Múltiples i submúltiples del SI"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <tbody><tr> <th>Múltiple </th> <th>Nom </th> <th>Símbol </th> <th> </th> <th>Submúltiple </th> <th>Nom </th> <th>Símbol </th></tr> <tr> <td>10<sup>0</sup> </td> <td><b>lumen</b> </td> <td>lm </td> <td> </td> <td> </td> <td> </td> <td> </td></tr> <tr> <td>10¹ </td> <td>decalumen </td> <td>dalm </td> <td> </td> <td>10<sup>−1</sup> </td> <td>decilumen </td> <td>dlm </td></tr> <tr> <td>10² </td> <td>hectolumen </td> <td>hlm </td> <td> </td> <td>10<sup>−2</sup> </td> <td>centilumen </td> <td>clm </td></tr> <tr> <td>10<sup>3</sup> </td> <td>kilolumen </td> <td>klm </td> <td> </td> <td>10<sup>−3</sup> </td> <td>mil·lilumen </td> <td>mlm </td></tr> <tr> <td>10⁶ </td> <td>megalumen </td> <td>Mlm </td> <td> </td> <td>10<sup>−6</sup> </td> <td>microlumen </td> <td>µlm </td></tr> <tr> <td>10⁹ </td> <td>gigalumen </td> <td>Glm </td> <td> </td> <td>10<sup>−9</sup> </td> <td>nanolumen </td> <td>nlm </td></tr> <tr> <td>10<sup>12</sup> </td> <td>teralumen </td> <td>Tlm </td> <td> </td> <td>10<sup>−12</sup> </td> <td>picolumen </td> <td>plm </td></tr> <tr> <td>10<sup>15</sup> </td> <td>petalumen </td> <td>Plm </td> <td> </td> <td>10<sup>−15</sup> </td> <td>femtolumen </td> <td>flm </td></tr> <tr> <td>10<sup>18</sup> </td> <td>exalumen </td> <td>Elm </td> <td> </td> <td>10<sup>−18</sup> </td> <td>attolumen </td> <td>alm </td></tr> <tr> <td>10<sup>21</sup> </td> <td>zettalumen </td> <td>Zlm </td> <td> </td> <td>10<sup>−21</sup> </td> <td>zeptolumen </td> <td>zlm </td></tr> <tr> <td>10<sup>24</sup> </td> <td>yottalumen </td> <td>Ylm </td> <td> </td> <td>10<sup>−24</sup> </td> <td>yoctolumen </td> <td>ylm </td></tr> </tbody></table> <p>Una <a href="/wiki/Bombeta_el%C3%A8ctrica" title="Bombeta elèctrica">bombeta</a> d'incandescència estàndard de 100 <a href="/wiki/Watt" title="Watt">watts</a> emet aproximadament 1500 lumens. </p> <div class="mw-heading mw-heading2"><h2 id="Referències"><span id="Refer.C3.A8ncies"></span>Referències</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lumen&action=edit&section=2" title="Modifica la secció: Referències"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist {{#if: | references-column-count references-column-count-{{{col}}}" style="list-style-type: decimal;"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-FOOTNOTEBIMP201926-1"><span class="mw-cite-backlink"><a href="#cite_ref-FOOTNOTEBIMP201926_1-0">↑</a></span> <span class="reference-text"><a href="#CITEREFBIMP2019">BIMP, 2019</a>, p. 26.</span> </li> <li id="cite_note-FOOTNOTEBIMP201948-2"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-FOOTNOTEBIMP201948_2-0">2,0</a></sup> <sup><a href="#cite_ref-FOOTNOTEBIMP201948_2-1">2,1</a></sup></span> <span class="reference-text"><a href="#CITEREFBIMP2019">BIMP, 2019</a>, p. 48.</span> </li> <li id="cite_note-FOOTNOTEBIMP201929-3"><span class="mw-cite-backlink"><a href="#cite_ref-FOOTNOTEBIMP201929_3-0">↑</a></span> <span class="reference-text"><a href="#CITEREFBIMP2019">BIMP, 2019</a>, p. 29.</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Bibliografia">Bibliografia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lumen&action=edit&section=3" title="Modifica la secció: Bibliografia"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="citation" style="font-style:normal" id="BIMP"> «<a rel="nofollow" class="external text" href="https://www.bipm.org/documents/20126/41483022/SI-Brochure-9.pdf/fcf090b2-04e6-88cc-1149-c3e029ad8232">Le Système International d'Unités</a>» (PDF) (en francès i anglès). <i><a href="/wiki/BIMP" class="mw-redirect" title="BIMP">BIMP</a></i> [Sèvres], Novena edició, 2019.</span></li></ul> <div role="navigation" class="navbox" aria-labelledby="Unitats_del_Sistema_Internacional" style="padding:3px"><table class="nowraplinks hlist collapsible collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3" style="background:#b0d1ad;"><div class="plainlinks hlist navbar mini"><ul><li class="nv-view"><span typeof="mw:File"><a href="/wiki/Plantilla:Unitats_del_SI" title="Plantilla:Unitats del SI"><img alt="Vegeu aquesta plantilla" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/18px-Commons-emblem-notice.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/27px-Commons-emblem-notice.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/36px-Commons-emblem-notice.svg.png 2x" data-file-width="48" data-file-height="48" 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title="Segon">Segon</a></li></ul> </div></td><td class="navbox-image" rowspan="4" style="width:1px;padding:0px 0px 0px 2px"><div><span typeof="mw:File"><a href="/wiki/Fitxer:SI_base_unit.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/SI_base_unit.svg/75px-SI_base_unit.svg.png" decoding="async" width="75" height="75" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/SI_base_unit.svg/113px-SI_base_unit.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c8/SI_base_unit.svg/150px-SI_base_unit.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background:#b0d1ad"><a href="/wiki/Unitat_derivada_del_SI" class="mw-redirect" title="Unitat derivada del SI">Unitats derivades</a></th><td class="navbox-list navbox-even hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Becquerel_(unitat)" title="Becquerel (unitat)">Becquerel</a></li> <li><a href="/wiki/Coulomb" title="Coulomb">Coulomb</a></li> <li><a href="/wiki/Grau_Celsius" title="Grau Celsius">Grau Celsius</a></li> <li><a href="/wiki/Estereoradian" title="Estereoradian">Estereoradian</a></li> <li><a href="/wiki/Farad" title="Farad">Farad</a></li> <li><a href="/wiki/Gray_(unitat)" title="Gray (unitat)">Gray</a></li> <li><a href="/wiki/Henry_(unitat)" title="Henry (unitat)">Henry</a></li> <li><a href="/wiki/Hertz" title="Hertz">Hertz</a></li> <li><a href="/wiki/Joule" title="Joule">Joule</a></li> <li><a href="/wiki/Katal" title="Katal">Katal</a></li> <li><a class="mw-selflink selflink">Lumen</a></li> <li><a href="/wiki/Lux" title="Lux">Lux</a></li> <li><a href="/wiki/Newton_(unitat)" title="Newton (unitat)">Newton</a></li> <li><a href="/wiki/Ohm_(unitat)" title="Ohm (unitat)">Ohm</a></li> <li><a href="/wiki/Pascal_(unitat)" title="Pascal (unitat)">Pascal</a></li> <li><a href="/wiki/Radian" title="Radian">Radian</a></li> <li><a href="/wiki/Siemens_(unitat)" title="Siemens (unitat)">Siemens</a></li> <li><a href="/wiki/Sievert" title="Sievert">Sievert</a></li> <li><a href="/wiki/Tesla_(unitat)" title="Tesla (unitat)">Tesla</a></li> <li><a href="/wiki/Volt" title="Volt">Volt</a></li> <li><a href="/wiki/Watt" title="Watt">Watt</a></li> <li><a href="/wiki/Weber_(unitat)" title="Weber (unitat)">Weber</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background:#b0d1ad"><a href="/wiki/Unitats_que_no_formen_part_del_SI_per%C3%B2_s%27hi_mencionen" title="Unitats que no formen part del SI però s'hi mencionen">Unitats <br />acceptades</a></th><td class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Unitat_de_massa_at%C3%B2mica" title="Unitat de massa atòmica">Unitat de massa atòmica</a></li> <li><a href="/wiki/Unitat_astron%C3%B2mica" title="Unitat astronòmica">Unitat astronòmica</a></li> <li><a href="/wiki/Dia" title="Dia">Dia</a></li> <li><a href="/wiki/Decibel" title="Decibel">Decibel</a></li> <li><a href="/wiki/Grau_Celsius" title="Grau Celsius">Grau Celsius</a></li> <li><a href="/wiki/Grau_sexagesimal" title="Grau sexagesimal">Grau sexagesimal</a></li> <li><a href="/wiki/Electr%C3%B3-volt" title="Electró-volt">Electró-volt</a></li> <li><a href="/wiki/Hect%C3%A0rea" title="Hectàrea">Hectàrea</a></li> <li><a href="/wiki/Hora" title="Hora">Hora</a></li> <li><a href="/wiki/Litre" title="Litre">Litre</a></li> <li><a href="/wiki/Minut" title="Minut">Minut</a></li> <li><a href="/wiki/Minut_d%27arc" title="Minut d'arc">Minut d'arc</a></li> <li><a href="/wiki/Neper" title="Neper">Neper</a></li> <li><a href="/wiki/Segon_d%27arc" class="mw-redirect" title="Segon d'arc">Segon d'arc</a></li> <li><a href="/wiki/Tona_(unitat)" title="Tona (unitat)">Tona</a> <br /> <a href="/wiki/Unitat_at%C3%B2mica" title="Unitat atòmica">Unitats atòmiques</a></li> <li><a href="/wiki/Unitat_natural" title="Unitat natural">Unitats naturals</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background:#b0d1ad">Vegeu també</th><td class="navbox-list navbox-even hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Prefixos_del_SI" class="mw-redirect" title="Prefixos del SI">Prefixos del SI</a></li> <li><a href="/wiki/Sistema_d%27unitats" title="Sistema d'unitats">Sistemes d'unitats</a></li> <li><a href="/wiki/Conversi%C3%B3_d%27unitats" title="Conversió d'unitats">Conversió d'unitats</a></li> <li><a href="/w/index.php?title=Redefinici%C3%B3_de_les_unitats_del_SI&action=edit&redlink=1" class="new" title="Redefinició de les unitats del SI (encara no existeix)">Redefinició de les unitats del SI</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Obtingut de «<a dir="ltr" href="https://ca.wikipedia.org/w/index.php?title=Lumen&oldid=32977154">https://ca.wikipedia.org/w/index.php?title=Lumen&oldid=32977154</a>»</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Especial:Categorias" title="Especial:Categorias">Categories</a>: <ul><li><a href="/wiki/Categoria:Fotometria" title="Categoria:Fotometria">Fotometria</a></li><li><a href="/wiki/Categoria:Unitats_derivades_del_SI" title="Categoria:Unitats derivades del SI">Unitats derivades del SI</a></li><li><a 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