{"id":14111,"date":"2023-09-18T01:44:39","date_gmt":"2023-09-18T01:44:39","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=14111"},"modified":"2023-12-26T08:44:18","modified_gmt":"2023-12-26T08:44:18","slug":"what-is-cutoff-angle","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/fr\/glossaire\/quel-est-langle-de-coupure","title":{"rendered":"Qu'est-ce que l'angle de coupure ?"},"content":{"rendered":"

Qu'est-ce que l'angle de coupure ?<\/h2>

L'angle de coupure est l'angle entre l'axe vertical d'un luminaire et la ligne de vis\u00e9e de l'illuminant (source lumineuse) o\u00f9 une forte luminosit\u00e9 n'est pas visible. C'est un param\u00e8tre utilis\u00e9 pour contr\u00f4ler l'\u00e9blouissement et am\u00e9liorer le confort visuel dans diverses applications d'\u00e9clairage.<\/p>

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L'angle de coupure d\u00e9termine la mesure dans laquelle la lumi\u00e8re est dirig\u00e9e vers le bas et emp\u00eache qu'elle soit \u00e9mise au-del\u00e0 d'un certain angle. En limitant la distribution de la lumi\u00e8re vers le haut, l'angle de coupure contribue \u00e0 minimiser l'\u00e9blouissement et \u00e0 am\u00e9liorer le confort visuel des pi\u00e9tons et des conducteurs.<\/p>

L'angle de coupure est l'angle entre l'axe vertical du luminaire et la ligne de vis\u00e9e de l'illuminant o\u00f9 une forte luminosit\u00e9 n'est pas visible. Cela signifie que l'angle de coupure d\u00e9finit la limite au-del\u00e0 de laquelle la lumi\u00e8re \u00e9mise par le luminaire n'est pas visible ou est consid\u00e9rablement r\u00e9duite en intensit\u00e9. Diff\u00e9rents angles de coupure sont utilis\u00e9s en fonction des exigences sp\u00e9cifiques en mati\u00e8re d'\u00e9clairage. Par exemple, dans les pi\u00e8ces \u00e0 plafond bas, un angle de coupure de 30 degr\u00e9s est couramment utilis\u00e9. Cet angle permet d'obtenir un \u00e9clairage vertical relativement \u00e9lev\u00e9 et de r\u00e9partir la lumi\u00e8re de mani\u00e8re \u00e0 ce que les faisceaux se chevauchent. Par cons\u00e9quent, la proportion d'\u00e9clairage sur le plan vertical est plus \u00e9lev\u00e9e.<\/p>

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En revanche, dans les environnements visuels tr\u00e8s exigeants, on utilise souvent des lampes ayant des angles de coupure plus grands, tels que 50 degr\u00e9s. Un angle de coupure de 50 degr\u00e9s est plus \u00e9troit qu'un angle de coupure de 30 degr\u00e9s, ce qui se traduit par un rapport d'\u00e9clairage horizontal plus \u00e9lev\u00e9 que l'\u00e9clairage vertical. Cela peut donner l'impression que le plafond est plus sombre, tout en fournissant une lumi\u00e8re cibl\u00e9e et en r\u00e9duisant la lumi\u00e8re parasite.<\/p>","protected":false},"excerpt":{"rendered":"

L'angle de coupure est l'angle entre l'axe vertical d'un luminaire (luminaire) et la ligne de vis\u00e9e de l'illuminant (source lumineuse) o\u00f9 une luminosit\u00e9 \u00e9lev\u00e9e n'est pas visible.<\/p>","protected":false},"author":4,"featured_media":12865,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"luminaire\", \"idxall\": 1, \"keywordtitlesimi\": 0.9144282937049866, \"keywordslugsimi\": 0.9144282937049866, \"paratitlesimi\": 0.5665162801742554, \"paraslugsimi\": 0.5665162801742554, \"slug\": \"what-is-luminaire\", \"title\": \"What is Luminaire\", \"id\": 14125}, {\"keyword\": \"glare\", \"idxall\": 0, \"keywordtitlesimi\": 0.9072950482368469, \"keywordslugsimi\": 0.9072950482368469, \"paratitlesimi\": 0.615666389465332, \"paraslugsimi\": 0.615666389465332, \"slug\": \"what-is-glare\", \"title\": \"What 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Angle","glossary_alter":"","glossary_def":"","article_task":"","footnotes":""},"categories":[102],"tags":[99],"class_list":["post-14111","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-glossary"],"yoast_head":"\nWhat is Cutoff Angle - Rayzeek<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rayzeek.com\/fr\/glossaire\/quel-est-langle-de-coupure\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is Cutoff Angle - Rayzeek\" \/>\n<meta property=\"og:description\" content=\"The cutoff angle is the angle between the vertical axis of a luminaire (light fixture) and the line of sight of the illuminant (light source) where high brightness is not visible.\" \/>\n<meta property=\"og:url\" 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