{"id":3972,"date":"2025-09-23T01:43:37","date_gmt":"2025-09-23T01:43:37","guid":{"rendered":"https:\/\/pergolalights.net\/?p=3972"},"modified":"2026-04-03T08:07:46","modified_gmt":"2026-04-03T08:07:46","slug":"why-phone-photos-flickering-lights-dont-indicate-faulty-bulbs","status":"publish","type":"post","link":"https:\/\/pergolalights.net\/fr\/why-phone-photos-flickering-lights-dont-indicate-faulty-bulbs\/","title":{"rendered":"Un t\u00e9l\u00e9phone qui capture des lumi\u00e8res vacillantes \u2260 le luminaire est r\u00e9ellement vacillant !"},"content":{"rendered":"<div class=\"row align-center\"  id=\"row-1367100853\">\n\n\t<div id=\"col-1382233371\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1384205375\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"977\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/A-phone-capturing-flickering-lights.webp\" class=\"attachment-original size-original\" alt=\"A phone capturing flickering lights\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/A-phone-capturing-flickering-lights.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/A-phone-capturing-flickering-lights-800x391.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/A-phone-capturing-flickering-lights-1400x684.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/A-phone-capturing-flickering-lights-768x375.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/A-phone-capturing-flickering-lights-1536x750.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/A-phone-capturing-flickering-lights-18x9.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/A-phone-capturing-flickering-lights-510x249.webp 510w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1384205375 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-867396283\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-867396283 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-1383634397\">\n\n\t<div id=\"col-1338863715\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-2619992028\" class=\"text\">\n\t\t\n<h2><strong><b>1. Si vous prenez une photo d'une ampoule avec votre t\u00e9l\u00e9phone et que vous constatez un clignotement, cela signifie-t-il que l'ampoule est d\u00e9fectueuse ?<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-2619992028 {\n  font-size: 0.75rem;\n  color: rgb(255, 255, 255);\n}\n#text-2619992028 > * {\n  color: rgb(255, 255, 255);\n}\n@media (min-width:550px) {\n  #text-2619992028 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1338863715 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n\t<div id=\"text-599227185\" class=\"text\">\n\t\t\n<p>Many people habitually point their phones at lights and take photos. If black bars or flickering appear in the image, they immediately conclude: \u201cThis light has flicker\u2014it&#8217;s unhealthy.\u201d<\/p>\n\t\t\n<style>\n#text-599227185 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-599227185 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1604027113\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"977\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/your-phone-and-see-flickering.webp\" class=\"attachment-original size-original\" alt=\"your phone and see flickering\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/your-phone-and-see-flickering.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/your-phone-and-see-flickering-800x391.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/your-phone-and-see-flickering-1400x684.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/your-phone-and-see-flickering-768x375.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/your-phone-and-see-flickering-1536x750.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/your-phone-and-see-flickering-18x9.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/your-phone-and-see-flickering-510x249.webp 510w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1604027113 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1300350777\" class=\"text\">\n\t\t\n<p>Mais la v\u00e9rit\u00e9 est que le scintillement captur\u00e9 par votre t\u00e9l\u00e9phone ne signifie pas que le luminaire \u00e9met des effets stroboscopiques nocifs.<\/p>\n\t\t\n<style>\n#text-1300350777 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1300350777 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1497363748\" class=\"text\">\n\t\t\n<p>Il s'agit simplement d'un ph\u00e9nom\u00e8ne d\u00fb \u00e0 la d\u00e9synchronisation de la cam\u00e9ra et de l'\u00e9clairage.\u201c<\/p>\n<p>En d'autres termes, si votre t\u00e9l\u00e9phone peut \u201cvoir\u201d le scintillement, il ne peut pas le \u201cmesurer\u201d.<\/p>\n\t\t\n<style>\n#text-1497363748 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1497363748 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-174831401\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-174831401 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-1752228905\">\n\n\t<div id=\"col-41748688\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-4232643344\" class=\"text\">\n\t\t\n<h2><strong><b>2. <\/b><\/strong><strong>Why can&#8217;t I see it with my eyes, but my phone can capture it?<\/strong><\/h2>\n\t\t\n<style>\n#text-4232643344 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-4232643344 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-4232643344 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-41748688 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-442765776\">\n\n\t<div id=\"col-718559419\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-941501981\" class=\"text\">\n\t\t\n<p>L'\u0153il humain et l'appareil photo per\u00e7oivent la lumi\u00e8re de mani\u00e8re totalement diff\u00e9rente :<\/p>\n<ul>\n<li>L'\u0153il humain poss\u00e8de une \u201cpersistance de la vision\u201d, agissant comme un \u201cfiltre\u201d naturel. Tant que la fr\u00e9quence de scintillement de la lumi\u00e8re d\u00e9passe environ 80 Hz, notre cerveau la \u201clisse\u201d automatiquement, la faisant appara\u00eetre comme un \u00e9clairage constant.<\/li>\n<li>Les cam\u00e9ras, en revanche, sont beaucoup plus litt\u00e9rales. Elles fonctionnent comme des instruments d'\u00e9chantillonnage, enregistrant fid\u00e8lement chaque fluctuation instantan\u00e9e de la luminosit\u00e9 d'une source lumineuse.<\/li>\n<\/ul>\n<p>Ainsi, lorsque la lumi\u00e8re clignote \u00e0 des fr\u00e9quences de 100 Hz, 120 Hz, voire des milliers de Hz :<\/p>\n<ul>\n<li>Yeux humains \u2192 Ne pas en tenir compte.<\/li>\n<li>Smartphones \u2192 Capturez l'image telle qu'elle est.<\/li>\n<\/ul>\n\t\t\n<style>\n#text-941501981 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-941501981 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-1377775753\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1377775753 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-657090536\">\n\n\t<div id=\"col-1146780603\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-1287774937\" class=\"text\">\n\t\t\n<h2><strong><b>3. <\/b><\/strong><strong>Pourquoi la lumi\u00e8re vacille-t-elle ?<\/strong><\/h2>\n\t\t\n<style>\n#text-1287774937 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-1287774937 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-1287774937 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1146780603 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-1068034089\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-1609667509\" class=\"text\">\n\t\t\n<p>En r\u00e9alit\u00e9, la plupart des \u00e9clairages ne sont pas \u201ctotalement stables\u201d :<\/p>\n<p>1. alimentation en courant alternatif<\/p>\n<ul>\n<li>Sous un r\u00e9seau de 50 Hz, l'\u00e9clairage pr\u00e9sente des fluctuations de luminosit\u00e9 de 100 Hz ;<\/li>\n<li>dans un r\u00e9seau de 60 Hz, ces fluctuations atteignent 120 Hz.<\/li>\n<\/ul>\n<p>2. alimentation du pilote de la LED<\/p>\n<ul>\n<li>Certains circuits d'attaque manquent de stabilit\u00e9, ce qui entra\u00eene une \u201condulation\u201d du courant de sortie qui se traduit par des fluctuations notables de la luminosit\u00e9.<\/li>\n<\/ul>\n<p>3. gradation PWM<\/p>\n<ul>\n<li>De nombreuses LED \u00e0 gradation utilisent une m\u00e9thode \u201cd'allumage et d'extinction rapides\u201d pour contr\u00f4ler la luminosit\u00e9.<\/li>\n<li>Bien qu'imperceptible \u00e0 l'\u0153il humain, les cam\u00e9ras peuvent capturer le moment \u201coff\u201d, ce qui se traduit par des rayures visibles sur l'image.<\/li>\n<\/ul>\n\t\t\n<style>\n#text-1609667509 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1609667509 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1703482309\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"977\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/3.PWM-Dimming.webp\" class=\"attachment-original size-original\" alt=\"PWM Dimming\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/3.PWM-Dimming.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/3.PWM-Dimming-800x391.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/3.PWM-Dimming-1400x684.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/3.PWM-Dimming-768x375.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/3.PWM-Dimming-1536x750.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/3.PWM-Dimming-18x9.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/3.PWM-Dimming-510x249.webp 510w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1703482309 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1762575526\" class=\"text\">\n\t\t\n<p>\u2191Image : \u00c9cran d'un smartphone utilisant la gradation PWM, qui peut pr\u00e9senter des bandes lorsqu'il est photographi\u00e9.<\/p>\n<p>So, the lights do indeed flicker, only we don&#8217;t usually see it.<\/p>\n\t\t\n<style>\n#text-1762575526 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1762575526 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1068034089 > .col-inner {\n  margin: 0px 0px -25px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-1593938080\">\n\n\t<div id=\"col-1124429433\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"gap-145963608\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-145963608 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-1088354544\">\n\n\t<div id=\"col-1455092818\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-4252948653\" class=\"text\">\n\t\t\n<h2><strong><b>4. <\/b><\/strong><b><\/b><strong>Pourquoi cela semble-t-il plus \u00e9vident lorsqu'il est photographi\u00e9 avec un t\u00e9l\u00e9phone ?<\/strong><\/h2>\n\t\t\n<style>\n#text-4252948653 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-4252948653 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-4252948653 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1455092818 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-1557340448\">\n\n\t<div id=\"col-793605300\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-995338287\" class=\"text\">\n\t\t\n<p>The key here is the camera&#8217;s \u201csampling method\u201d:<\/p>\n<ul>\n<li>Vitesse d'obturation : si l'obturateur ne couvre qu'une petite partie de l'onde lumineuse, la luminosit\u00e9 de l'image sera in\u00e9gale.<\/li>\n<li>Fr\u00e9quence d'images (FPS) : Lorsque la fr\u00e9quence d'images n'est pas synchronis\u00e9e avec la fr\u00e9quence de la lumi\u00e8re, des barres noires apparaissent.<\/li>\n<li>Obturateur roulant : La plupart des appareils photo de smartphones utilisent le balayage progressif. Comme les sources lumineuses varient en luminosit\u00e9 pendant l'exposition de diff\u00e9rentes lignes \u2192 des bandes apparaissent.<\/li>\n<\/ul>\n<p>Cela explique \u00e9galement pourquoi le strobing est particuli\u00e8rement visible dans les vid\u00e9os au ralenti. Les fr\u00e9quences d'images \u00e9lev\u00e9es \u201camplifient\u201d chaque fluctuation de la lumi\u00e8re.<\/p>\n\t\t\n<style>\n#text-995338287 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-995338287 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-871396914\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-871396914 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-142360397\">\n\n\t<div id=\"col-131140435\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3863613670\" class=\"text\">\n\t\t\n<h2><b>5.\u00a0<\/b><strong><b>Why can&#8217;t a phone&#8217;s stroboscopic effect be used for detection?<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-3863613670 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-3863613670 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-3863613670 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-131140435 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-1373168519\">\n\n\t<div id=\"col-1345341630\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-1065166278\" class=\"text\">\n\t\t\n<p>De nombreuses personnes croient \u00e0 tort que \u201crayures captur\u00e9es sur un t\u00e9l\u00e9phone = \u00e9clairage d\u00e9fectueux\u201d. Il s'agit en fait d'une id\u00e9e fausse pour trois raisons :<\/p>\n<ol>\n<li>Aucune norme<\/li>\n<\/ol>\n<ul>\n<li>La d\u00e9tection scientifique du scintillement utilise un ensemble complet de mesures, telles que le pourcentage de scintillement, l'indice de scintillement, le SVM et le PstLM.<\/li>\n<li>Les bandes visibles sur les photos de t\u00e9l\u00e9phone ne correspondent pas \u00e0 ces mesures.<\/li>\n<\/ul>\n<ol start=\"2\">\n<li>Les r\u00e9sultats ne sont pas coh\u00e9rents.<\/li>\n<\/ol>\n<ul>\n<li>La m\u00eame source de lumi\u00e8re produit des effets compl\u00e8tement diff\u00e9rents lorsqu'elle est photographi\u00e9e avec des t\u00e9l\u00e9phones, des vitesses d'obturation et des cadences d'images diff\u00e9rents.<\/li>\n<li>Sans norme unifi\u00e9e, les r\u00e9sultats ne peuvent \u00eatre compar\u00e9s.<\/li>\n<\/ul>\n<ol start=\"3\">\n<li>Les erreurs d'interpr\u00e9tation sont fr\u00e9quentes<\/li>\n<\/ol>\n<ul>\n<li>Gradation PWM \u00e0 haute fr\u00e9quence : Sans danger pour l'\u0153il humain, mais les smartphones captureront in\u00e9vitablement le scintillement.<\/li>\n<li>Fluctuations \u00e0 basse fr\u00e9quence : Peuvent contribuer \u00e0 la fatigue oculaire, mais les smartphones peuvent ne pas les d\u00e9tecter.<\/li>\n<\/ul>\n<p>Par cons\u00e9quent, le scintillement capt\u00e9 par les smartphones n'est qu'un \u201cph\u00e9nom\u00e8ne\u201d et ne peut servir de preuve pour d\u00e9terminer si un luminaire est sain.<\/p>\n\t\t\n<style>\n#text-1065166278 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1065166278 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-708230248\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-708230248 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-577092135\">\n\n\t<div id=\"col-1666004280\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-2610309990\" class=\"text\">\n\t\t\n<h2><strong><b>6. <\/b><\/strong><strong>Comment la mesurer ?<\/strong><\/h2>\n\t\t\n<style>\n#text-2610309990 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-2610309990 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-2610309990 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1666004280 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-93614996\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-537456467\" class=\"text\">\n\t\t\n<p>L'approche v\u00e9ritablement scientifique consiste \u00e0 utiliser des instruments professionnels tels que des stroboscopes ou des spectrom\u00e8tres. Ces appareils peuvent quantifier les fluctuations de la lumi\u00e8re et calculer des param\u00e8tres tels que le pourcentage de scintillement, l'indice de scintillement et l'\u00e9cart de tension standard (SVM).<\/p>\n\t\t\n<style>\n#text-537456467 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-537456467 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_991978108\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1051\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Licht-Ultra-spectrophotometer-for-testing-stroboscopic-effects.webp\" class=\"attachment-original size-original\" alt=\"Licht Ultra spectrophotometer for testing stroboscopic effects\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Licht-Ultra-spectrophotometer-for-testing-stroboscopic-effects.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Licht-Ultra-spectrophotometer-for-testing-stroboscopic-effects-761x400.webp 761w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Licht-Ultra-spectrophotometer-for-testing-stroboscopic-effects-1400x736.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Licht-Ultra-spectrophotometer-for-testing-stroboscopic-effects-768x404.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Licht-Ultra-spectrophotometer-for-testing-stroboscopic-effects-1536x807.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Licht-Ultra-spectrophotometer-for-testing-stroboscopic-effects-18x9.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Licht-Ultra-spectrophotometer-for-testing-stroboscopic-effects-510x268.webp 510w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_991978108 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3875194290\" class=\"text\">\n\t\t\n<p>\u2191Image : Spectrophotom\u00e8tre Licht Ultra pour tester les effets stroboscopiques<\/p>\n\t\t\n<style>\n#text-3875194290 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3875194290 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3305768717\" class=\"text\">\n\t\t\n<p>Il s'agit des param\u00e8tres reconnus par les normes internationales telles que la CIE, la CEI et l'IEEE, qui peuvent \u00eatre utilis\u00e9s pour comparer les m\u00e9rites de diff\u00e9rents luminaires.<\/p>\n<p>On peut le comprendre ainsi :<\/p>\n<ul>\n<li>D\u00e9tection de l'effet stroboscopique d'un t\u00e9l\u00e9phone portable = observation subjective permettant de \u2018soup\u00e7onner\u2019 une source lumineuse d\u00e9fectueuse ;<\/li>\n<li>Test stroboscopique professionnel = mesure objective, capable de r\u00e9ellement \u2018v\u00e9rifier\u2019 si une source lumineuse fonctionne correctement.<\/li>\n<\/ul>\n\t\t\n<style>\n#text-3305768717 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3305768717 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-93614996 > .col-inner {\n  margin: 0px 0px -25px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n\t<div id=\"gap-1710509209\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1710509209 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row align-center\"  id=\"row-1470743075\">\n\n\t<div id=\"col-125847490\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-810891825\" class=\"text\">\n\t\t\n<h2><strong><b>7. <\/b><\/strong><strong><b>Que nous r\u00e9serve l'avenir ?<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-810891825 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-810891825 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-810891825 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-125847490 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-1611843224\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-1052445506\" class=\"text\">\n\t\t\n<ul>\n<li>Industrie de l'\u00e9clairage : Un nombre croissant de luminaires portent d\u00e9sormais la mention \u201csans scintillement\u201d, les alimentations de pilotes de haute qualit\u00e9 devenant de plus en plus courantes. Cela permet non seulement d'am\u00e9liorer l'aptitude \u00e0 la photographie, mais aussi d'att\u00e9nuer la fatigue visuelle.<\/li>\n<li>Industrie de la photographie : Une fois que la technologie de l'obturateur global se sera r\u00e9pandue, les probl\u00e8mes d'\u00e9talement caus\u00e9s par l'obturateur roulant seront fondamentalement \u00e9limin\u00e9s.<\/li>\n<\/ul>\n\t\t\n<style>\n#text-1052445506 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1052445506 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-127521862\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-127521862 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1611843224 > .col-inner {\n  margin: 0px 0px -25px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-2038244916\">\n\n\t<div id=\"col-1328664900\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-2925664580\" class=\"text\">\n\t\t\n<h2><strong><b>8. <\/b><\/strong><strong><b>Conclusion<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-2925664580 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-2925664580 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-2925664580 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1328664900 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-1543337863\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-2971355011\" class=\"text\">\n\t\t\n<ul>\n<li>\n<p>De nombreuses personnes aiment utiliser leur t\u00e9l\u00e9phone portable comme \u201cd\u00e9tecteur\u201d, mais la r\u00e9alit\u00e9 est toute autre :<\/p>\n<p>La capture de bandes \u2260 la lumi\u00e8re est n\u00e9cessairement nuisible ;<\/p>\n<p>La capture de bandes \u2260 la lumi\u00e8re n'est pas n\u00e9cessairement sans danger.<\/p>\n<p>Seuls des instruments professionnels et des mesures d'essai normalis\u00e9es permettent d'en avoir le c\u0153ur net.<\/p>\n<p>Ainsi, la prochaine fois que quelqu'un sortira son t\u00e9l\u00e9phone pour photographier une lumi\u00e8re et dira \u201ccette lumi\u00e8re a un scintillement\u201d, vous pourrez lui r\u00e9pondre en toute confiance :<\/p>\n<p>&#8216;Mobile phones cannot detect flicker.&#8217;<\/p>\n<p>Note: When testing flicker with a portable spectrophotometer, attention should be paid to the test direction. For comparing luminaire flicker, horizontal testing may be employed, whereas vertical testing is required for assessing flicker from the human eye&#8217;s perspective. Values obtained from these two approaches often differ significantly. This discrepancy arises because the vertical plane receives both direct and reflected light from multiple luminaires at wide angles. Furthermore, temporal light modulation (TLM) variations from different drivers are more readily superimposed in this direction, potentially generating beat effects. Consequently, flicker perception is typically more pronounced vertically than horizontally. Spatial lighting design should therefore prioritise addressing flicker perception from the vertical plane.<\/p>\n<\/li>\n<\/ul>\n\t\t\n<style>\n#text-2971355011 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2971355011 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-1683599372\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1683599372 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1543337863 > .col-inner {\n  margin: 0px 0px -25px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":3981,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[84],"tags":[],"class_list":["post-3972","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Discover why flickering lights captured on your phone aren&#039;t a sign of faulty bulbs. 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