{"id":7248,"date":"2025-11-27T14:40:09","date_gmt":"2025-11-27T13:40:09","guid":{"rendered":"https:\/\/www.afe-eclairage.fr\/?p=7248"},"modified":"2025-11-27T14:46:48","modified_gmt":"2025-11-27T13:46:48","slug":"enquete-sous-les-lumieres-de-decembre","status":"publish","type":"post","link":"https:\/\/www.afe-eclairage.fr\/?p=7248","title":{"rendered":"Enqu\u00eate sous les lumi\u00e8res de d\u00e9cembre"},"content":{"rendered":"\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-1024x550.jpg\" alt=\"\" class=\"wp-image-7254\" width=\"635\" height=\"341\" srcset=\"https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-1024x550.jpg 1024w, https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-300x161.jpg 300w, https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-768x413.jpg 768w, https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-1536x826.jpg 1536w, https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-2048x1101.jpg 2048w, https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-260x140.jpg 260w, https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-50x27.jpg 50w, https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-140x75.jpg 140w, https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-960x516.jpg 960w, https:\/\/www.afe-eclairage.fr\/wp-content\/uploads\/2025\/11\/hero-winter-scaled-1-600x323.jpg 600w\" sizes=\"(max-width: 635px) 100vw, 635px\" \/><\/figure><\/div>\n\n\n<p><strong>C\u2019\u00e9tait cens\u00e9 \u00eatre une simple promenade d\u2019hiver.<\/strong><br>Quelques rues, un chocolat chaud, des d\u00e9corations qui scintillent.<br>Et pourtant\u2026 en observant les illuminations de No\u00ebl, mille questions se glissent dans l\u2019ombre comme de petits lutins curieux.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#940d0d\" class=\"has-inline-color\">L\u2019AFE vous propose une mini-enqu\u00eate scientifique, pour comprendre ce qui se passe vraiment derri\u00e8re la magie.<\/mark><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Un grand remerciement \u00e0 Christophe MARTINSONS (CIE France).<\/strong><\/p>\n\n\n\n<div style=\"height:52px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b01 : Les guirlandes \u201cclignotent\u201d\u2026 mais personne n\u2019a touch\u00e9 l\u2019interrupteur. Pourquoi ?<\/strong><\/p>\n\n\n\n<p>Une modulation temporelle parfois intentionnelle (papillotement) mais parfois \u00e0 peine perceptible (effet stroboscopique, effet de r\u00e9seau fant\u00f4me) provoqu\u00e9 par un <strong>courant modul\u00e9<\/strong>.<br>Les LED n\u2019ont rien de capricieux : elles r\u00e9pondent simplement \u00e0 leur alimentation.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b02 : Deux sapins, deux \u201cblancs\u201d\u2026 mais une ambiance radicalement diff\u00e9rente.<\/strong><\/p>\n\n\n\n<p>La cause ? Le <strong>spectre d\u2019\u00e9mission<\/strong>.<br>Les LED \u201cchaudes\u201d tirent vers l\u2019ambre, les \u201cfroides\u201d vers le bleu. L\u2019atmosph\u00e8re change compl\u00e8tement.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b03 : Pourquoi tout para\u00eet plus lumineux quand on sort du m\u00e9tro ?<\/strong><\/p>\n\n\n\n<p>Votre r\u00e9tine est encore en <strong>mode d\u2019adaptation \u00e0 l\u2019obscurit\u00e9<\/strong>.<br>Le temps qu\u2019elle se r\u00e9adapte, tout semble sur-\u00e9clair\u00e9.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b04 : Pourquoi a-t-on abandonn\u00e9 les lampes \u00e0 incandescence ?<\/strong><\/p>\n\n\n\n<p>Parce que les LED consomment <strong>10 fois moins<\/strong> et survivent \u00e0 la pluie mieux qu\u2019un bonhomme de neige en mars.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b05 : L\u2019\u00e9blouissement des conducteurs, un vrai sujet ?<\/strong><\/p>\n\n\n\n<p>Oui. Une guirlande mal plac\u00e9e peut produire une <strong>luminance excessive<\/strong>, plus g\u00eanante que d\u00e9corative.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b06 : Pourquoi presque toutes les illuminations sont en blanc chaud ?<\/strong><\/p>\n\n\n\n<p>Parce que c\u2019est la couleur du <strong>confort<\/strong>, de la f\u00eate, du \u201crestez encore un peu, il fait bon ici\u201d.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b07 : Comment obtient-on ces couleurs satur\u00e9es, presque irr\u00e9elles ?<\/strong><\/p>\n\n\n\n<p>Gr\u00e2ce \u00e0 des LED spectrales tr\u00e8s <strong>s\u00e9lectives<\/strong>.<br>Chaque couleur est li\u00e9 \u00e0 un spectre d\u2019\u00e9mission de lumi\u00e8re tr\u00e8s fin<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b08 : Pourquoi vos photos ne ressemblent pas \u00e0 la r\u00e9alit\u00e9 ?<\/strong><\/p>\n\n\n\n<p>Votre smartphone fait de son mieux\u2026 mais <strong>la restitution des couleurs de son capteur<\/strong> et la <strong>perception chromatique humaine<\/strong> de la sc\u00e8ne ne s\u2019entendent pas toujours.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b09 : Pourquoi certaines lumi\u00e8res vibrent en vision p\u00e9riph\u00e9rique ?<\/strong><\/p>\n\n\n\n<p>Votre r\u00e9tine lat\u00e9rale d\u00e9tecte mieux les <strong>fr\u00e9quences \u00e9lev\u00e9es de scintillement<\/strong>.<br>Un d\u00e9tail souvent invisible en vision directe.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b010 : Ces scintillements dans les \u00e9toiles\u2026 c\u2019est de la magie ?<\/strong><\/p>\n\n\n\n<p>Non, des <strong>microprismes sont <\/strong>incrust\u00e9s dans les diffuseurs en plastique.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b011 : Pourquoi les illuminations sont-elles encore plus belles par temps froid ?<\/strong><\/p>\n\n\n\n<p>Parce que l\u2019air sec diffuse moins la lumi\u00e8re.<br>Contraste augment\u00e9 = magie d\u00e9cupl\u00e9e.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udd0d<\/strong><strong> Myst\u00e8re n\u00b012 : Comment les spectacles lumineux sont-ils synchronis\u00e9s si pr\u00e9cis\u00e9ment ?<\/strong><\/p>\n\n\n\n<p>Gr\u00e2ce au contr\u00f4le \u00e9lectronique r\u00e9alis\u00e9s \u00e0 l\u2019aide de protocole de pilotage d\u00e9di\u00e9s \u00e0 l\u2019\u00e9clairage, comme le <strong>DMX ou le DALI<\/strong> : la magie a un protocole bien r\u00e9el.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\ud83c\udf81 <strong>\u00c9pilogue<\/strong><br>La magie de No\u00ebl n\u2019est pas qu\u2019une affaire de r\u00eaves : c\u2019est une partition parfaitement orchestr\u00e9e de photom\u00e9trie, d\u2019optique, de perception et de savoir-faire technique.<br>Et c\u2019est aussi pour cela que\u2026 <strong>vous faites partie de l\u2019AFE.<\/strong><\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>C\u2019\u00e9tait cens\u00e9 \u00eatre une simple promenade d\u2019hiver.Quelques rues, un chocolat chaud, des d\u00e9corations qui scintillent.Et pourtant\u2026 en observant les illuminations de No\u00ebl, mille questions se glissent<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=\/wp\/v2\/posts\/7248"}],"collection":[{"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7248"}],"version-history":[{"count":10,"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=\/wp\/v2\/posts\/7248\/revisions"}],"predecessor-version":[{"id":7263,"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=\/wp\/v2\/posts\/7248\/revisions\/7263"}],"wp:attachment":[{"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.afe-eclairage.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}