{"id":166,"date":"2018-12-29T21:12:34","date_gmt":"2018-12-30T05:12:34","guid":{"rendered":"https:\/\/phoseon.com\/?page_id=166"},"modified":"2022-11-23T10:53:11","modified_gmt":"2022-11-23T18:53:11","slug":"led-uv-system-lifetime","status":"publish","type":"page","link":"http:\/\/phoseon.com\/fr\/industrial-curing\/technology\/led-uv-system-lifetime\/","title":{"rendered":"Dur\u00e9e de vie du syst\u00e8me LED UV"},"content":{"rendered":"<section class=\"section-header\">\n\t<div class=\"grid-container\">\n\t\t<div class=\"grid-x grid-margin-x\">\n\t\t\t<div class=\"cell small-12\">\n\t\t\t    <h2>Longue dur\u00e9e de vie du syst\u00e8me LED UV<\/h2>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"cell small-6 small-offset-3\">\n\t\t\t\t\t\t<hr \/>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"cell small-10 small-offset-1\">\n\t\t\t    \t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\n\n\n<p>Les diodes \u00e9lectroluminescentes (DEL) \u00e0 semi-conducteurs produisent de la lumi\u00e8re lorsqu'un courant \u00e9lectrique passe du c\u00f4t\u00e9 positif (anode) au c\u00f4t\u00e9 n\u00e9gatif (cathode). Comme les autres dispositifs \u00e0 semi-conducteurs, les LED ont une longue dur\u00e9e de vie si elles sont utilis\u00e9es correctement. S'ils sont con\u00e7us correctement, ces dispositifs \u00e0 semi-conducteurs durent plus de 40 000 heures de fonctionnement, contrairement aux lampes UV traditionnelles. Les lampes traditionnelles produisent de la lumi\u00e8re en g\u00e9n\u00e9rant un arc \u00e9lectrique \u00e0 l'int\u00e9rieur d'une chambre de gaz ionis\u00e9 (g\u00e9n\u00e9ralement du mercure) pour exciter les atomes, qui se d\u00e9sint\u00e8grent ensuite en \u00e9mettant des photons.  De plus, la Commission europ\u00e9enne (CE), par le biais de ses directives sur la restriction des substances dangereuses (RoHS), a continuellement surveill\u00e9 les progr\u00e8s rapides des capacit\u00e9s des LED UV. De nombreux acteurs de l'industrie pr\u00e9voient que la CE commencera \u00e0 limiter l'utilisation des lampes traditionnelles, en commen\u00e7ant par des syst\u00e8mes plus petits, puis en s'orientant vers des syst\u00e8mes plus grands dans les ann\u00e9es \u00e0 venir. En combinant la production d'\u00e9nergie des sources lumineuses LED UV d'aujourd'hui et la bonne formulation des r\u00e9sines, photo-initiateurs et additifs UV, il est possible de d\u00e9passer les capacit\u00e9s des processus actuels pour une vari\u00e9t\u00e9 d'applications.<\/p>\n\n\n\n<p>Les LED UV sont une petite partie, bien qu'importante, d'une source de lumi\u00e8re UV, mais le reste du syst\u00e8me doit \u00e9galement \u00eatre pris en compte lorsque l'on discute de la dur\u00e9e de vie. Le reste du syst\u00e8me doit \u00e9galement \u00eatre pris en compte lorsque l'on parle de la dur\u00e9e de vie. Cela inclut les circuits de contr\u00f4le internes et le syst\u00e8me de refroidissement pour garantir que les LED restent dans les limites de leurs sp\u00e9cifications de fonctionnement, ainsi que le bo\u00eetier pour prot\u00e9ger les LED des facteurs environnementaux. <\/p>\n\n\n\n<p>Les syst\u00e8mes brevet\u00e9s et exclusifs de Phoseon utilisent la gestion thermique, les techniques d'\u00e9tanch\u00e9it\u00e9, les am\u00e9liorations optiques et les circuits de contr\u00f4le pour maximiser les performances sans sacrifier la dur\u00e9e de vie.<\/p>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background\" href=\"https:\/\/discover.phoseon.com\/led-uv-systems-lifetime\" style=\"background-color:#633799\">T\u00e9l\u00e9charger la note technique sur la dur\u00e9e de vie des LED<\/a><\/div>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\t<section class=\"section-header\">\n\t<div class=\"grid-container\">\n\t\t<div class=\"grid-x grid-margin-x\">\n\t\t\t<div class=\"cell small-12\">\n\t\t\t    <h2>Avantages de la technologie LED UV <\/h2>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"cell small-6 small-offset-3\">\n\t\t\t\t\t\t<hr \/>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"cell small-10 small-offset-1\">\n\t\t\t    \t\t\t    <p><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-19256 size-full\" src=\"https:\/\/phoseon.com\/wp-content\/uploads\/2020\/12\/BenefitsChart.jpg\" alt=\"\" width=\"960\" height=\"540\" srcset=\"https:\/\/phoseon.com\/wp-content\/uploads\/2020\/12\/BenefitsChart.jpg 960w, https:\/\/phoseon.com\/wp-content\/uploads\/2020\/12\/BenefitsChart-300x169.jpg 300w, https:\/\/phoseon.com\/wp-content\/uploads\/2020\/12\/BenefitsChart-768x432.jpg 768w, https:\/\/phoseon.com\/wp-content\/uploads\/2020\/12\/BenefitsChart-16x9.jpg 16w, https:\/\/phoseon.com\/wp-content\/uploads\/2020\/12\/BenefitsChart-640x360.jpg 640w\" sizes=\"(max-width: 639px) 98vw, (max-width: 1199px) 64vw, 770px\" \/><\/p>\n<\/p>\n\t\t\t    \t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\t<section class=\"two-column-flex\">\n\t\t\t\t<div class=\"two-column-flex-container\">\n\t\t\t<div class=\"flex-item small-flex-item\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" alt=\"Pile de LED\" src=\"https:\/\/phoseon.com\/wp-content\/uploads\/2019\/01\/LED-Stack-2-640x321.jpg\" \/>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"flex-item large-flex-item\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"two-column-cta-image-header\">Facteurs affectant la dur\u00e9e de vie des LED<\/h2>\t\t\t\t\t\t\t\t\t<p class=\"two-column-cta-image-content\"><p>Les deux principaux facteurs qui affectent la dur\u00e9e de vie des LED sont la temp\u00e9rature et le courant. Lorsque les LED convertissent l'\u00e9lectricit\u00e9 en lumi\u00e8re, de la chaleur est g\u00e9n\u00e9r\u00e9e au sein de la jonction p-n, ce que l'on appelle la temp\u00e9rature de jonction. Pour qu'une diode ait une dur\u00e9e de vie maximale, la temp\u00e9rature de la jonction doit rester dans une zone de fonctionnement s\u00fbre. La puissance de sortie UV d'une diode augmente avec le courant d'entr\u00e9e mais diminue avec la temp\u00e9rature de jonction. Pour un courant d'entr\u00e9e fixe, plus la temp\u00e9rature de la jonction reste froide, plus la diode fournira de puissance UV.<\/p>\n<\/p>\t\t\t\t\t\t<a href=\"http:\/\/phoseon.com\/fr\/contact-us\/\" target=\"\"\n\t\t\t\t\t\t\t class=\"button two-column-cta-image-button\">Nous contacter<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t<\/section>\n\n\n\n\n\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\t<section class=\"two-column-flex\">\n\t\t\t\t<div class=\"two-column-flex-container\">\n\t\t\t<div class=\"flex-item small-flex-item\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" alt=\"Graphique, donn\u00e9es du Phoseon Lifetest\" src=\"https:\/\/phoseon.com\/wp-content\/uploads\/2019\/01\/Graph_Phoseon_Lifetestdata.jpg\" \/>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"flex-item large-flex-item\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"two-column-cta-image-header\">Caract\u00e9ristiques de fin de vie des LED<\/h2>\t\t\t\t\t\t\t\t\t<p class=\"two-column-cta-image-content\"><p>Le \"mode de d\u00e9faillance\" normal d'une LED est la d\u00e9gradation progressive du rendement lumineux. De nombreux syst\u00e8mes d'\u00e9clairage LED commerciaux d\u00e9finissent la d\u00e9faillance \u00e0 70% de la sortie de fonctionnement originale, \u00e9galement connue sous le nom de L70. Les sources lumineuses Phoseon sont con\u00e7ues pour garantir une dur\u00e9e de vie L80 (80% de la sortie d'origine) d'au moins 40 000 heures, mais il a \u00e9t\u00e9 d\u00e9montr\u00e9 que la dur\u00e9e de vie L80 pouvait atteindre 60 000 heures. La figure repr\u00e9sente les donn\u00e9es r\u00e9elles recueillies par Phoseon Technology sur une source lumineuse fonctionnant en continu.<\/p>\n<\/p>\t\t\t\t\t\t<a href=\"http:\/\/phoseon.com\/fr\/contact-us\/\" target=\"\"\n\t\t\t\t\t\t\t class=\"button two-column-cta-image-button\">Nous contacter<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t<\/section>","protected":false},"excerpt":{"rendered":"<p>Les diodes \u00e9lectroluminescentes (DEL) \u00e0 l'\u00e9tat solide produisent de la lumi\u00e8re lorsqu'un courant \u00e9lectrique passe du c\u00f4t\u00e9 positif (anode) au c\u00f4t\u00e9 n\u00e9gatif [...].<\/p>","protected":false},"author":2,"featured_media":0,"parent":160,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>LED UV System Lifetime - Phoseon Technology<\/title>\n<meta name=\"description\" content=\"Phoseon products offer a long LED UV system lifetime due to our patented and proprietary technology for UV curing. 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