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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="Somari" 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">Somari</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mòu a la barra laterala</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">Escondre</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">Començament</div> </a> </li> <li id="toc-Tecnologia_LED" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tecnologia_LED"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Tecnologia LED</span> </div> </a> <ul id="toc-Tecnologia_LED-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Aplicacions" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Aplicacions"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Aplicacions</span> </div> </a> <button aria-controls="toc-Aplicacions-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>Commuta la subsecció Aplicacions</span> </button> <ul id="toc-Aplicacions-sublist" class="vector-toc-list"> <li id="toc-Indicadors_e_senhals" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Indicadors_e_senhals"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Indicadors e senhals</span> </div> </a> <ul id="toc-Indicadors_e_senhals-sublist" class="vector-toc-list"> </ul> </li> </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="Somari" 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">LED</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 78 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-78" 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">78 lengas</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/%D8%AB%D9%86%D8%A7%D8%A6%D9%8A_%D8%A8%D8%A7%D8%B9%D8%AB_%D9%84%D9%84%D8%B6%D9%88%D8%A1" title="ثنائي باعث للضوء - arabi" lang="ar" hreflang="ar" data-title="ثنائي باعث للضوء" data-language-autonym="العربية" data-language-local-name="arabi" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%AA%E0%A7%8B%E0%A6%B9%E0%A7%B0_%E0%A6%A8%E0%A6%BF%E0%A7%B0%E0%A7%8D%E0%A6%97%E0%A6%A4%E0%A6%95_%E0%A6%A1%E0%A6%BE%E0%A6%AF%E0%A6%BC%27%E0%A6%A1" title="পোহৰ নিৰ্গতক ডায়'ড - assamès" lang="as" hreflang="as" data-title="পোহৰ নিৰ্গতক ডায়'ড" data-language-autonym="অসমীয়া" data-language-local-name="assamès" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Led" title="Led - asturian" lang="ast" hreflang="ast" data-title="Led" data-language-autonym="Asturianu" data-language-local-name="asturian" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/%C4%B0%C5%9F%C4%B1q_diodu" title="İşıq diodu - azerbaijani" lang="az" hreflang="az" data-title="İşıq diodu" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A1%D0%B2%D1%8F%D1%82%D0%BB%D0%BE%D0%B4%D1%8B%D1%91%D0%B4" title="Святлодыёд - belarús" lang="be" hreflang="be" data-title="Святлодыёд" 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%A1%D1%8C%D0%B2%D1%8F%D1%82%D0%BB%D0%BE%D0%B4%D1%8B%D1%91%D0%B4" title="Сьвятлодыёд - Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Сьвятлодыёд" 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%A1%D0%B2%D0%B5%D1%82%D0%BE%D0%B4%D0%B8%D0%BE%D0%B4" title="Светодиод - bulgar" lang="bg" hreflang="bg" data-title="Светодиод" data-language-autonym="Български" data-language-local-name="bulgar" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%B2%E0%A7%8B%E0%A6%95_%E0%A6%A8%E0%A6%BF%E0%A6%83%E0%A6%B8%E0%A6%BE%E0%A6%B0%E0%A7%80_%E0%A6%A1%E0%A6%BE%E0%A6%AF%E0%A6%BC%E0%A7%8B%E0%A6%A1" title="আলোক নিঃসারী ডায়োড - bengalin" lang="bn" hreflang="bn" data-title="আলোক নিঃসারী ডায়োড" data-language-autonym="বাংলা" data-language-local-name="bengalin" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Svijetle%C4%87a_dioda" title="Svijetleća dioda - bosniac" lang="bs" hreflang="bs" data-title="Svijetleća dioda" data-language-autonym="Bosanski" data-language-local-name="bosniac" 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/D%C3%ADode_emissor_de_llum" title="Díode emissor de llum - catalan" lang="ca" hreflang="ca" data-title="Díode emissor de llum" data-language-autonym="Català" data-language-local-name="catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%A6%DB%8E%DA%B5_%D8%A6%DB%8C_%D8%AF%DB%8C" title="ئێڵ ئی دی - kurd central" lang="ckb" hreflang="ckb" data-title="ئێڵ ئی دی" data-language-autonym="کوردی" data-language-local-name="kurd central" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/LED" title="LED - chèc" lang="cs" hreflang="cs" data-title="LED" data-language-autonym="Čeština" data-language-local-name="chèc" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Deuod_allyrru_golau" title="Deuod allyrru golau - gal·lès" lang="cy" hreflang="cy" data-title="Deuod allyrru golau" data-language-autonym="Cymraeg" data-language-local-name="gal·lès" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Lysdiode" title="Lysdiode - danés" lang="da" hreflang="da" data-title="Lysdiode" data-language-autonym="Dansk" data-language-local-name="danés" 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/Leuchtdiode" title="Leuchtdiode - alemand" lang="de" hreflang="de" data-title="Leuchtdiode" data-language-autonym="Deutsch" data-language-local-name="alemand" 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%94%CE%AF%CE%BF%CE%B4%CE%BF%CF%82_%CE%B5%CE%BA%CF%80%CE%BF%CE%BC%CF%80%CE%AE%CF%82_%CF%86%CF%89%CF%84%CF%8C%CF%82" title="Δίοδος εκπομπής φωτός - grèc" lang="el" hreflang="el" data-title="Δίοδος εκπομπής φωτός" data-language-autonym="Ελληνικά" data-language-local-name="grèc" 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/Light-emitting_diode" title="Light-emitting diode - anglés" lang="en" hreflang="en" data-title="Light-emitting diode" data-language-autonym="English" data-language-local-name="anglés" 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/Lum-eliganta_diodo" title="Lum-eliganta diodo - esperanto" lang="eo" hreflang="eo" data-title="Lum-eliganta diodo" 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/Led" title="Led - espanhòl" lang="es" hreflang="es" data-title="Led" data-language-autonym="Español" data-language-local-name="espanhòl" 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/Valgusdiood" title="Valgusdiood - estonian" lang="et" hreflang="et" data-title="Valgusdiood" data-language-autonym="Eesti" data-language-local-name="estonian" 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/LED" title="LED - basc" lang="eu" hreflang="eu" data-title="LED" 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/%D8%A7%D9%84%E2%80%8C%D8%A6%DB%8C%E2%80%8C%D8%AF%DB%8C" title="ال‌ئی‌دی - perse" lang="fa" hreflang="fa" data-title="ال‌ئی‌دی" data-language-autonym="فارسی" data-language-local-name="perse" 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/LED" title="LED - finlandés" lang="fi" hreflang="fi" data-title="LED" data-language-autonym="Suomi" data-language-local-name="finlandés" 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/Diode_%C3%A9lectroluminescente" title="Diode électroluminescente - francés" lang="fr" hreflang="fr" data-title="Diode électroluminescente" data-language-autonym="Français" data-language-local-name="francés" 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/J%C3%A5chtdioode" title="Jåchtdioode - frisó septentrional" lang="frr" hreflang="frr" data-title="Jåchtdioode" 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/D%C3%A9-%C3%B3id_sholasasta%C3%ADoch" title="Dé-óid sholasastaíoch - irlandés" lang="ga" hreflang="ga" data-title="Dé-óid sholasastaíoch" data-language-autonym="Gaeilge" data-language-local-name="irlandés" 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/LED" title="LED - galician" lang="gl" hreflang="gl" data-title="LED" data-language-autonym="Galego" data-language-local-name="galician" 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/LED" title="LED - ebrèu" lang="he" hreflang="he" data-title="LED" data-language-autonym="עברית" data-language-local-name="ebrèu" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B6_%E0%A4%89%E0%A4%A4%E0%A5%8D%E0%A4%B8%E0%A4%B0%E0%A5%8D%E0%A4%9C%E0%A4%95_%E0%A4%A1%E0%A4%BE%E0%A4%AF%E0%A5%8B%E0%A4%A1" title="प्रकाश उत्सर्जक डायोड - Indi" lang="hi" hreflang="hi" data-title="प्रकाश उत्सर्जक डायोड" data-language-autonym="हिन्दी" data-language-local-name="Indi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Svjetle%C4%87a_dioda" title="Svjetleća dioda - croat" lang="hr" hreflang="hr" data-title="Svjetleća dioda" 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/Vil%C3%A1g%C3%ADt%C3%B3_di%C3%B3da" title="Világító dióda - ongrés" lang="hu" hreflang="hu" data-title="Világító dióda" data-language-autonym="Magyar" data-language-local-name="ongrés" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Dioda_pemancar_cahaya" title="Dioda pemancar cahaya - indonesian" lang="id" hreflang="id" data-title="Dioda pemancar cahaya" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesian" 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/LED" title="LED - ido" lang="io" hreflang="io" data-title="LED" 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/Lj%C3%B3stvistur" title="Ljóstvistur - islandés" lang="is" hreflang="is" data-title="Ljóstvistur" data-language-autonym="Íslenska" data-language-local-name="islandés" 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/LED" title="LED - italian" lang="it" hreflang="it" data-title="LED" data-language-autonym="Italiano" data-language-local-name="italian" 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/%E7%99%BA%E5%85%89%E3%83%80%E3%82%A4%E3%82%AA%E3%83%BC%E3%83%89" title="発光ダイオード - japonés" lang="ja" hreflang="ja" data-title="発光ダイオード" data-language-autonym="日本語" data-language-local-name="japonés" 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%9B%E1%83%90%E1%83%9C%E1%83%90%E1%83%97%E1%83%9D%E1%83%91%E1%83%94%E1%83%9A%E1%83%98_%E1%83%93%E1%83%98%E1%83%9D%E1%83%93%E1%83%94%E1%83%91%E1%83%98" title="მანათობელი დიოდები - georgian" lang="ka" hreflang="ka" data-title="მანათობელი დიოდები" data-language-autonym="ქართული" data-language-local-name="georgian" 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%96%D0%B0%D1%80%D1%8B%D2%9B_%D1%88%D1%8B%D2%93%D0%B0%D1%80%D0%B0%D1%82%D1%8B%D0%BD_%D0%B4%D0%B8%D0%BE%D0%B4" title="Жарық шығаратын диод - cazac" lang="kk" hreflang="kk" data-title="Жарық шығаратын диод" data-language-autonym="Қазақша" data-language-local-name="cazac" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%8E%E0%B2%B2%E0%B3%8D.%E0%B2%87.%E0%B2%A1%E0%B2%BF" title="ಎಲ್.ಇ.ಡಿ - kannada" lang="kn" hreflang="kn" data-title="ಎಲ್.ಇ.ಡಿ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B0%9C%EA%B4%91_%EB%8B%A4%EC%9D%B4%EC%98%A4%EB%93%9C" title="발광 다이오드 - corean" lang="ko" hreflang="ko" data-title="발광 다이오드" data-language-autonym="한국어" data-language-local-name="corean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/LED" title="LED - latin" lang="la" hreflang="la" data-title="LED" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Diod_emissor_de_lus" title="Diod emissor de lus - llombard" lang="lmo" hreflang="lmo" data-title="Diod emissor de lus" data-language-autonym="Lombard" data-language-local-name="llombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/%C5%A0viesos_diodas" title="Šviesos diodas - lituan" lang="lt" hreflang="lt" data-title="Šviesos diodas" data-language-autonym="Lietuvių" data-language-local-name="lituan" 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/Gaismas_diode" title="Gaismas diode - leton" lang="lv" hreflang="lv" data-title="Gaismas diode" data-language-autonym="Latviešu" data-language-local-name="leton" 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%A1%D0%B2%D0%B5%D1%82%D0%BB%D0%B5%D1%87%D0%BA%D0%B0_%D0%B4%D0%B8%D0%BE%D0%B4%D0%B0" title="Светлечка диода - macedonian" lang="mk" hreflang="mk" data-title="Светлечка диода" data-language-autonym="Македонски" data-language-local-name="macedonian" 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%88%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%8D_%E0%B4%8E%E0%B4%AE%E0%B4%BF%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B4%BF%E0%B4%99%E0%B5%8D%E0%B4%99%E0%B5%8D_%E0%B4%A1%E0%B4%AF%E0%B5%8B%E0%B4%A1%E0%B5%8D" title="ലൈറ്റ് എമിറ്റിങ്ങ് ഡയോഡ് - malaiàlam" lang="ml" hreflang="ml" data-title="ലൈറ്റ് എമിറ്റിങ്ങ് ഡയോഡ്" data-language-autonym="മലയാളം" data-language-local-name="malaiàlam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%8F%E0%A4%B2%E0%A4%88%E0%A4%A1%E0%A5%80" title="एलईडी - marathi" lang="mr" hreflang="mr" data-title="एलईडी" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Diod_pemancar_cahaya" title="Diod pemancar cahaya - malai" lang="ms" hreflang="ms" data-title="Diod pemancar cahaya" 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/Led" title="Led - neerlandés" lang="nl" hreflang="nl" data-title="Led" data-language-autonym="Nederlands" data-language-local-name="neerlandés" 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/Lysdiode" title="Lysdiode - norvegian nynorsk" lang="nn" hreflang="nn" data-title="Lysdiode" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegian 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/Lysdiode" title="Lysdiode - norvegian bokmål" lang="nb" hreflang="nb" data-title="Lysdiode" data-language-autonym="Norsk bokmål" data-language-local-name="norvegian 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/Dioda_elektroluminescencyjna" title="Dioda elektroluminescencyjna - polonés" lang="pl" hreflang="pl" data-title="Dioda elektroluminescencyjna" data-language-autonym="Polski" data-language-local-name="polonés" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%DA%86%D8%A7%D9%86%D9%86_%D9%88%D8%A7%D9%84%D8%A7_%DA%88%D8%A7%D8%A6%DB%8C%D9%88%DA%88" title="چانن والا ڈائیوڈ - Western Punjabi" lang="pnb" hreflang="pnb" data-title="چانن والا ڈائیوڈ" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Diodo_emissor_de_luz" title="Diodo emissor de luz - portugués" lang="pt" hreflang="pt" data-title="Diodo emissor de luz" data-language-autonym="Português" data-language-local-name="portugués" 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/LED" title="LED - romanés" lang="ro" hreflang="ro" data-title="LED" data-language-autonym="Română" data-language-local-name="romanés" 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%A1%D0%B2%D0%B5%D1%82%D0%BE%D0%B4%D0%B8%D0%BE%D0%B4" title="Светодиод - rus" lang="ru" hreflang="ru" data-title="Светодиод" data-language-autonym="Русский" data-language-local-name="rus" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Licht-emittin_diode" title="Licht-emittin diode - escossés" lang="sco" hreflang="sco" data-title="Licht-emittin diode" data-language-autonym="Scots" data-language-local-name="escossés" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Svetle%C4%87a_dioda" title="Svetleća dioda - serbocroat" lang="sh" hreflang="sh" data-title="Svetleća dioda" 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-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%86%E0%B6%BD%E0%B7%9D%E0%B6%9A_%E0%B7%80%E0%B7%92%E0%B6%B8%E0%B7%9D%E0%B6%A0%E0%B6%9A_%E0%B6%AF%E0%B7%92%E0%B6%BA%E0%B7%9D%E0%B6%A9%E0%B6%BA" title="ආලෝක විමෝචක දියෝඩය - singalès" lang="si" hreflang="si" data-title="ආලෝක විමෝචක දියෝඩය" data-language-autonym="සිංහල" data-language-local-name="singalès" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Light-emitting_diode" title="Light-emitting diode - Simple English" lang="en-simple" hreflang="en-simple" data-title="Light-emitting diode" 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/Luminiscen%C4%8Dn%C3%A1_di%C3%B3da" title="Luminiscenčná dióda - eslovac" lang="sk" hreflang="sk" data-title="Luminiscenčná dióda" 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/Svetle%C4%8Da_dioda" title="Svetleča dioda - eslovèn" lang="sl" hreflang="sl" data-title="Svetleča dioda" data-language-autonym="Slovenščina" data-language-local-name="eslovèn" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A1%D0%B2%D0%B5%D1%82%D0%BB%D0%B5%D1%9B%D0%B0_%D0%B4%D0%B8%D0%BE%D0%B4%D0%B0" title="Светлећа диода - serbi" lang="sr" hreflang="sr" data-title="Светлећа диода" 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-stq mw-list-item"><a href="https://stq.wikipedia.org/wiki/Ljoachtdiode" title="Ljoachtdiode - saterlandais" lang="stq" hreflang="stq" data-title="Ljoachtdiode" data-language-autonym="Seeltersk" data-language-local-name="saterlandais" class="interlanguage-link-target"><span>Seeltersk</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Lysdiod" title="Lysdiod - suedés" lang="sv" hreflang="sv" data-title="Lysdiod" data-language-autonym="Svenska" data-language-local-name="suedés" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%92%E0%AE%B3%E0%AE%BF_%E0%AE%89%E0%AE%AE%E0%AE%BF%E0%AE%B4%E0%AF%8D_%E0%AE%87%E0%AE%B0%E0%AF%81%E0%AE%AE%E0%AF%81%E0%AE%A9%E0%AF%88%E0%AE%AF%E0%AE%AE%E0%AF%8D" title="ஒளி உமிழ் இருமுனையம் - tamol" lang="ta" hreflang="ta" data-title="ஒளி உமிழ் இருமுனையம்" data-language-autonym="தமிழ்" data-language-local-name="tamol" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D0%A1%D0%B2%D0%B5%D1%82%D0%BE%D0%B4%D0%B8%D0%BE%D0%B4" title="Светодиод - tajic" lang="tg" hreflang="tg" data-title="Светодиод" data-language-autonym="Тоҷикӣ" data-language-local-name="tajic" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%84%E0%B8%94%E0%B9%82%E0%B8%AD%E0%B8%94%E0%B9%80%E0%B8%9B%E0%B8%A5%E0%B9%88%E0%B8%87%E0%B9%81%E0%B8%AA%E0%B8%87" title="ไดโอดเปล่งแสง - tai" lang="th" hreflang="th" data-title="ไดโอดเปล่งแสง" data-language-autonym="ไทย" data-language-local-name="tai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/LED" title="LED - tagal" lang="tl" hreflang="tl" data-title="LED" data-language-autonym="Tagalog" data-language-local-name="tagal" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/LED" title="LED - turc" lang="tr" hreflang="tr" data-title="LED" 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%A1%D0%B2%D1%96%D1%82%D0%BB%D0%BE%D0%B4%D1%96%D0%BE%D0%B4" title="Світлодіод - ucrainés" lang="uk" hreflang="uk" data-title="Світлодіод" data-language-autonym="Українська" data-language-local-name="ucrainés" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/LED" title="LED - ozbèc" lang="uz" hreflang="uz" data-title="LED" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="ozbèc" 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/LED" title="LED - vietnamian" lang="vi" hreflang="vi" data-title="LED" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamian" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Light-emitting_diode" title="Light-emitting diode - waray" lang="war" hreflang="war" data-title="Light-emitting diode" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%8F%91%E5%85%89%E4%BA%8C%E6%9E%81%E7%AE%A1" title="发光二极管 - xinès wu" lang="wuu" hreflang="wuu" data-title="发光二极管" 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-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%9C%D7%99%D7%9B%D7%98-%D7%90%D7%A8%D7%95%D7%99%D7%A1%D7%92%D7%A2%D7%91%D7%A0%D7%93%D7%99%D7%A7%D7%A2%D7%A8_%D7%93%D7%99%D7%90%D7%93" title="ליכט-ארויסגעבנדיקער דיאד - yiddish" lang="yi" hreflang="yi" data-title="ליכט-ארויסגעבנדיקער דיאד" data-language-autonym="ייִדיש" data-language-local-name="yiddish" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%99%BC%E5%85%89%E4%BA%8C%E6%A5%B5%E7%AE%A1" title="發光二極管 - chinés" lang="zh" hreflang="zh" data-title="發光二極管" data-language-autonym="中文" data-language-local-name="chinés" 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/%E7%99%BC%E5%85%89%E4%BA%8C%E6%A5%B5%E7%AE%A1" title="發光二極管 - cantonés" lang="yue" hreflang="yue" data-title="發光二極管" data-language-autonym="粵語" data-language-local-name="cantonés" 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/Q25504#sitelinks-wikipedia" title="Modificar los ligams interlenga" class="wbc-editpage">Modificar los ligams</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="Espacis 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/LED" title="Veire l’article [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Discutir:LED&action=edit&redlink=1" rel="discussion" class="new" title="Discussion a prepaus d'aquesta pagina (la pagina existís pas) [t]" accesskey="t"><span>Discussion</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">occitan</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="Afichatges"> <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/LED"><span>Legir</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=LED&veaction=edit" title="Modificar aquela pagina [v]" accesskey="v"><span>Modificar</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=LED&action=edit" title="Modificar lo còdi font d'aquela pagina [e]" accesskey="e"><span>Modificar lo còdi</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=LED&action=history" title="Los autors e versions precedentas d'aquesta pagina. 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width:180px; margin:0 0 1em 1em; border:1px; border-style:solid; padding:2px;"><center><span typeof="mw:File"><a href="/wiki/Fichi%C3%A8r:Diodos_LED_foto.png" class="mw-file-description" title="Diòdes LED"><img alt="Diòdes LED" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Diodos_LED_foto.png/150px-Diodos_LED_foto.png" decoding="async" width="150" height="141" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Diodos_LED_foto.png/225px-Diodos_LED_foto.png 1.5x, //upload.wikimedia.org/wikipedia/commons/0/0d/Diodos_LED_foto.png 2x" data-file-width="256" data-file-height="240" /></a></span><br />Diòdes LED<br /> <hr /> <p><b>A (p)</b> <span typeof="mw:File"><a href="/wiki/Fichi%C3%A8r:Diod_LED_symbol.png" class="mw-file-description" title="Simbòl de Diòde LED"><img alt="Simbòl de Diòde LED" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Diod_LED_symbol.png/150px-Diod_LED_symbol.png" decoding="async" width="150" height="150" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Diod_LED_symbol.png/225px-Diod_LED_symbol.png 1.5x, //upload.wikimedia.org/wikipedia/commons/6/60/Diod_LED_symbol.png 2x" data-file-width="256" data-file-height="256" /></a></span> <b>C o K (n)</b><br /> Representacion simbolica. </p> </center></div> <p>Un <b>diòde LED</b>, <a href="/wiki/Acronim" title="Acronim">acronim</a> de l'<a href="/wiki/Angl%C3%A9s" title="Anglés">anglés</a> <i><b>l</b>ight-<b>e</b>mitting <b>d</b>iode</i> (<a href="/wiki/Di%C3%B2de" title="Diòde">diòde</a> emetor de <a href="/wiki/Lutz" title="Lutz">lutz</a>) es un dispositiu <a href="/wiki/Semiconductor" title="Semiconductor">semiconductor</a> qu'emet de lutz incoerenta d'espèctre redusit quand se polariza de forma directa l'union PN e es traversat per un <a href="/wiki/Corrent_electric" title="Corrent electric">corrent electric</a>. La <a href="/wiki/Color" title="Color">color</a> depend del material semiconductor utilizat dins la construccion del diòde, e pòt variar de l'<a href="/wiki/Ultraviolet" title="Ultraviolet">ultraviolet</a>, passant per l'espèctre de lutz visibla, fins a l'<a href="/wiki/Infraroge" title="Infraroge">infraroge</a>. Dins lo darrièr cas, se nomenan <b>diòdes IRED</b> (per <i><b>I</b>nfra-<b>R</b>ed <b>E</b>mitting <b>D</b>iode</i>). </p><p>Lo dispositiu semiconductor es sovent encapsulat dins una capa de <a href="/wiki/Plastic" title="Plastic">plastic</a> de mai granda resisténcia qu'aquelas de veire que s'utilizan abitualament dins las ampolas. Que lo plastic siá colorat, es sonque per de rasons esteticas. Abitualament, la capa a una fàcia plana ont es lo <a href="/w/index.php?title=Cat%C3%B2de&action=edit&redlink=1" class="new" title="Catòde (la pagina existís pas)">catòde</a>, qu'es un pauc mens cort que l'<a href="/w/index.php?title=An%C3%B2de&action=edit&redlink=1" class="new" title="Anòde (la pagina existís pas)">anòde</a> (veire fòto). </p><p>Al contrari que las <a href="/w/index.php?title=Ampola_d%27incandesc%C3%A9ncia&action=edit&redlink=1" class="new" title="Ampola d'incandescéncia (la pagina existís pas)">ampolas d'incandescéncia</a> que pòdon èsser alimentadas amb lo <a href="/wiki/Corrent_alternatiu" title="Corrent alternatiu">corrent alternatiu</a> o <a href="/wiki/Corrent_contin%C3%BA" title="Corrent continú">continú</a>, lo diòde LED fonciona pas que amb aquel darrièr, perque sonque condusís l'electricitat quand se polariza en dirècte, coma los diòdes p-n convencionals. Se deu ben destriar lo corrent que travèrsa lo LED per n'obtenir una bona intensitat luminosa; lo <a href="/w/index.php?title=Voltatge&action=edit&redlink=1" class="new" title="Voltatge (la pagina existís pas)">voltatge</a> deu èsser d'1,5 a <span class="nowrap">2,2 <a href="/wiki/V%C3%B2lt" title="Vòlt">V</a></span> e la gamma d'<a href="/w/index.php?title=Intensitat_electrica&action=edit&redlink=1" class="new" title="Intensitat electrica (la pagina existís pas)">intensitats</a> que deu circular per el va de 10 a <span class="nowrap">20 <a href="/wiki/Amp%C3%A8r" title="Ampèr">mA</a></span> dins los diòdes de color roja e d'entre 20 e <span class="nowrap">40 mA</span> per los autres LEDs. </p><p>Lo primièr diòde LED qu'emetiá dins l'espectre visible foguèt desvolopat per l'<a href="/w/index.php?title=Engenhaire&action=edit&redlink=1" class="new" title="Engenhaire (la pagina existís pas)">engenhaire</a> de <a href="/w/index.php?title=General_Electric&action=edit&redlink=1" class="new" title="General Electric (la pagina existís pas)">General Electric</a> <a href="/w/index.php?title=Nick_Holonyak&action=edit&redlink=1" class="new" title="Nick Holonyak (la pagina existís pas)">Nick Holonyak</a> en <a href="/wiki/1962" class="mw-redirect" title="1962">1962</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Tecnologia_LED">Tecnologia LED</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=LED&veaction=edit&section=1" title="Modificar la seccion : Tecnologia LED" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=LED&action=edit&section=1" title="Edita el codi de la secció: Tecnologia LED"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>En dirècte, totes los diòdes emeton una certana quantitat de <a href="/w/index.php?title=Radiacion&action=edit&redlink=1" class="new" title="Radiacion (la pagina existís pas)">radiacion</a> quand los parelhs electron-vuèit se recombinan, es a dire, quand los <a href="/wiki/Electron" title="Electron">electrons</a> <i>cason</i> dempuèi la benda de conduccion (de pus granda energia) a la benda de la valéncia (de mendre energia). Indobtablament, la frequéncia de la radiacion emesa e alara de sa color, dependrà de la nautor de la benda enebida (diferéncias d'energia entre las bendas de conduccion e valéncia), es a dire, dels materials utilizats. Los diòdes convencionals, de <a href="/wiki/Silici" title="Silici">silici</a> o de <a href="/wiki/Germani" title="Germani">germani</a>, emeton de radiacion infraroja fòrça alunhada de l'espèctre visible, encara que de materials especials pòdon aténher de longors d'onda visiblas. Los diòdes LED e IRED, en mai an de formas especialas per evitar que la radiacion emesa torne èsser absorbida pel material a l'entorn del quite diòde, çò qu'arriba pel convencionals. </p><p><br /> </p> <table border="1" align="center" width="50%"> <tbody><tr> <th bgcolor="#ffffcc">Composicion </th> <th bgcolor="#ffffcc">Color </th></tr> <tr> <td>Arseniur de galli (GaAs)</td> <td><a href="/wiki/Infraroge" title="Infraroge">Infraroge</a> </td></tr> <tr> <td>Arseniur de galli e alumini (AlGaAs) </td> <td><a href="/wiki/Roge" title="Roge">Roge</a> e <a href="/wiki/Infraroge" title="Infraroge">infraroge</a> </td></tr> <tr> <td>Arseniur fosfuri de galli (GaAsP)</td> <td>Roge, <a href="/wiki/Irange_(color)" title="Irange (color)">irange</a> e <a href="/wiki/Jaune" title="Jaune">jaune</a> </td></tr> <tr> <td>Nitrur de galli (GaN)</td> <td><a href="/wiki/Verd" title="Verd">Verd</a> </td></tr> <tr> <td>Fosfur de galli (GaP)</td> <td>Verd </td></tr> <tr> <td>Seleniur de zinc (ZnSe)</td> <td><a href="/wiki/Blau" title="Blau">Blau</a> </td></tr> <tr> <td>Nitrur de galli e indi (InGaN)</td> <td>Blau </td></tr> <tr> <td>Carbur de silici (SiC)</td> <td>Blau </td></tr> <tr> <td><a href="/wiki/Diamant" title="Diamant">Diamant</a> (C)</td> <td><a href="/wiki/Ultraviolet" title="Ultraviolet">Ultraviolet</a> </td></tr> <tr> <td><a href="/wiki/Silici" title="Silici">Silici</a> (Si)</td> <td>Allimonat electric </td></tr></tbody></table> <center><i>Compausants utilizats dins la construccion de diòdes LED.</i></center> <p>Los primièrs diòdes construits èran los diòdes infraroges e de color roja, permetent lo desvolopament tecnologic posterior la construccion de diòdes per de <a href="/wiki/Longor_d%27onda" title="Longor d'onda">longors d'onda</a> cada còp mendres. En particular, los diòdes blaus foguèron desvolopats a la fin de las annadas 1990, s'apondent als roges e verds desvolopats de per abans, çò que permetèt, per combinason de totes, l'obtencion de lutz blanca. Lo diòde de seleniur de zinc tanben pòt donar de lutz blanca s'es mesclada amb la lutz blava qu'emet amb la roja e verda creada per <a href="/w/index.php?title=Fotoluminesc%C3%A9ncia&action=edit&redlink=1" class="new" title="Fotoluminescéncia (la pagina existís pas)">fotoluminescéncia</a>. La pus recenta innovacion dins lo domeni de la tecnologia LED son los diòdes ultraviolets, que foguèron utilizats amb succès dins la produccion de lutz blanca per enlusir de materials <a href="/wiki/Fluoresc%C3%A9ncia" title="Fluorescéncia">fluorescents</a>. </p><p>Tant los diòdes blaus coma los ultraviolets son relativament cars en comparason amb los mai comuns (roge, verd, jaune e infraroge) son atal mens utilizats per las aplicacions comercialas. </p><p>Los LED comercials tipics son dessenhats per de <a href="/w/index.php?title=Pot%C3%A9ncia_fisica&action=edit&redlink=1" class="new" title="Poténcia fisica (la pagina existís pas)">poténcias</a> de l'òrdre de 30 a <span class="nowrap">60 <a href="/wiki/Watt" title="Watt">mW</a></span>. Vèrs 1999 foguèron introdusits sul mercat de diòdes capables de trabalhar amb de poténcias d'<span class="nowrap">1 W</span> per usatge de contunh; aqueles diòdes an plan segur de materials semiconductors de dimensions encara mai grandas per poder suportar de talas poténcias e incorporan en mai alatas metallicas per dissipar la calor (veire <a href="/w/index.php?title=Conveccion&action=edit&redlink=1" class="new" title="Conveccion (la pagina existís pas)">conveccion</a>) generada per l'<a href="/w/index.php?title=Ef%C3%A8cte_Joule&action=edit&redlink=1" class="new" title="Efècte Joule (la pagina existís pas)">efècte Joule</a>. </p><p>Al començament del sègle XXI apareguèron los <a href="/w/index.php?title=OLED&action=edit&redlink=1" class="new" title="OLED (la pagina existís pas)">OLED</a> (diòdes LED organics), fabricats amb de polimèrs organics semiconductors. Malgrat que l'eficiéncia capitada amb aqueles dispositius es luenh d'aquela dels diòdes anorganics, sa fabricacion promet d'èsser considerablement mens cara, se pòdon tanben dispausar en granda quantitat sus una superfícia quina que siá utilizant de tecnicas de pintura per crear d'ecrans de color. </p> <div class="mw-heading mw-heading2"><h2 id="Aplicacions">Aplicacions</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=LED&veaction=edit&section=2" title="Modificar la seccion : Aplicacions" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=LED&action=edit&section=2" title="Edita el codi de la secció: Aplicacions"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fichi%C3%A8r:Semafor_de_leds.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Semafor_de_leds.jpg/220px-Semafor_de_leds.jpg" decoding="async" width="220" height="306" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Semafor_de_leds.jpg/330px-Semafor_de_leds.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Semafor_de_leds.jpg/440px-Semafor_de_leds.jpg 2x" data-file-width="1491" data-file-height="2074" /></a><figcaption><a href="/w/index.php?title=Semaf%C3%B2r&action=edit&redlink=1" class="new" title="Semafòr (la pagina existís pas)">Semafòr</a> de leds</figcaption></figure> <p>Los diòdes d'infraroges (IRED) s'usan dempuèi la mitat del sègle XX per las <a href="/wiki/Telecomanda" title="Telecomanda">telecomandas</a> de las <a href="/wiki/Television" title="Television">televisions</a>, l'usatge se generalizèt per d'autres equipaments electrics domestics. </p><p>Los diòdes LED s'utilizan amb profusion dins totes tipes d'indicadors d'estat (alucat/apagat) dins de dispositius de senhalizacion (de transpòrt, d'urgéncia, eca.) e dins los panèls d'informacion (lo pus grand del mond, aquel del <a href="/wiki/NASDAQ" title="NASDAQ">NASDAQ</a>, a 36,6 mètres de naut e es a <a href="/wiki/Times_Square" title="Times Square">Times Square</a>, <a href="/wiki/Manhattan" title="Manhattan">Manhattan</a>). Tanben s'utilizan per enlusir los ecrans de cristal liquid de televisions, telefòns mobils, calculadoiras, agendas electronicas, eca. e mai per las bicicletas, semafòrs, indicadors logistics e de transpòrt de tot biais. </p><p>La <a href="/wiki/Torre_Agbar" class="mw-redirect" title="Torre Agbar">Torre Agbar</a> utiliza mai de 4000 luminaris qu'enclusisson de LEDs per enlusir sa faciada amb diferents imatges. </p><p>L'usatge d'ampolas LED lo domeni de las illuminacions (senhalizacion de transpòrt enclusa) poiriá aumentar encara dins lo futur perque presenta d'avantatges indiscutibles fàcia als sistèmas d'incandescéncia subretot mercé sa longa vida utila, e sa fragilitat mendre. </p> <div class="mw-heading mw-heading3"><h3 id="Indicadors_e_senhals">Indicadors e senhals</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=LED&veaction=edit&section=3" title="Modificar la seccion : Indicadors e senhals" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=LED&action=edit&section=3" title="Edita el codi de la secció: Indicadors e senhals"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La <a href="/wiki/Conservacion_de_l%27energia" title="Conservacion de l'energia">bassa consumacion d'energia</a>, lo manteniment aisit e la talha reduita dels LEDs modèrnes donan luòc a d'aplicacions coma indicators d'estat e es presenta dins una granda varietat d'equipaments e installacions. Los <a href="/w/index.php?title=Ecran_LED&action=edit&redlink=1" class="new" title="Ecran LED (la pagina existís pas)">ecrans LED</a> de zona larga s'utilizan coma ecrans estatics e dinamics d'usatge decoratiu. D'ecrans pus leugièrs e prims que mòstran de messatges s'utilizan dins los aeropòrts e las estacions de tren, e donan al public d'informacions sus la destinacion dels trens, autobuses, trams e mai. </p> <div class="noprint wikiligam_alternatiu" style="clear:right; float:right;margin:0 0 1em 1em;width:250px;border:solid #AAAAAA 1px; background:#f9f9f9;padding:0px;font-size:90%;text-align:left;"> <table cellpadding="2" cellspacing="0" style="background-color:transparent"> <tbody><tr valign="middle"> <td style="line-height:50px;vertical-align:middle;position:relative" align="center" valign="middle"> <p><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/" title="commons:"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/50px-Commons-logo.svg.png" decoding="async" width="50" height="67" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/75px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/100px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> </p> </td> <td valign="middle"> <p><span class="plainlinks"><a href="/wiki/Wikimedia_Commons" title="Wikimedia Commons">Wikimedia Commons</a> prepausa de documents multimèdia liures sus <b><a class="external text" href="https://commons.wikimedia.org/wiki/LED?uselang=oc">LED</a></b>.</span> </p> </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="">Recuperada de « <a dir="ltr" href="https://oc.wikipedia.org/w/index.php?title=LED&oldid=2303465">https://oc.wikipedia.org/w/index.php?title=LED&oldid=2303465</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">Categorias de la pagina</a> : <ul><li><a href="/wiki/Categoria:Mod%C3%A8l_infobox" title="Categoria:Modèl infobox">Modèl infobox</a></li><li><a href="/wiki/Categoria:Lutz" title="Categoria:Lutz">Lutz</a></li><li><a href="/wiki/Categoria:Electricitat" title="Categoria:Electricitat">Electricitat</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categoria amagada : <ul><li><a href="/wiki/Categoria:Article_utilizant_lo_mod%C3%A8l_Commons" title="Categoria:Article utilizant lo modèl Commons">Article utilizant lo modèl Commons</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Aquela pagina es estada modificada pel darrièr còp lo 30 genièr de 2022 a 18.56.</li> <li id="footer-info-copyright"><span style="white-space: normal"><a href="/wiki/Wikip%C3%A8dia:Drech_d%27autor" title="Wikipèdia:Drech d'autor">Drech d'autor</a> : Los tèxtes son disponibles jos <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/deed.fr">licéncia Creative Commons paternitat pertatge a l’identic</a> ; d’autras condicions se pòdon aplicar. 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