{"id":3482,"date":"2024-07-09T00:00:00","date_gmt":"2024-07-09T00:00:00","guid":{"rendered":"https:\/\/ledrhythm.com\/news\/how-to-look-at-the-beam-angle-of-outdoor-floodlights.html"},"modified":"2025-08-21T06:00:19","modified_gmt":"2025-08-21T06:00:19","slug":"how-to-look-at-the-beam-angle-of-outdoor-floodlights","status":"publish","type":"post","link":"https:\/\/ledrhythm.com\/fr\/news\/how-to-look-at-the-beam-angle-of-outdoor-floodlights.html","title":{"rendered":"Savez-vous vraiment comment est calcul\u00e9 l'angle du faisceau ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3482\" class=\"elementor elementor-3482\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3ad1bfb e-flex e-con-boxed e-con e-parent\" data-id=\"3ad1bfb\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6a0a912 elementor-widget elementor-widget-heading\" data-id=\"6a0a912\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table des mati\u00e8res\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/ledrhythm.com\/fr\/news\/how-to-look-at-the-beam-angle-of-outdoor-floodlights.html\/#Introduction\" >Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/ledrhythm.com\/fr\/news\/how-to-look-at-the-beam-angle-of-outdoor-floodlights.html\/#What_is_Beam_Angle\" >Qu'est-ce que l'angle du faisceau ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ledrhythm.com\/fr\/news\/how-to-look-at-the-beam-angle-of-outdoor-floodlights.html\/#Beam_Angle_Calculator%E2%80%8B\" >Calculateur d'angle de rayonnement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ledrhythm.com\/fr\/news\/how-to-look-at-the-beam-angle-of-outdoor-floodlights.html\/#How_to_choose_right_beam_angle\" >Comment choisir l'angle de rayonnement ad\u00e9quat ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ledrhythm.com\/fr\/news\/how-to-look-at-the-beam-angle-of-outdoor-floodlights.html\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ledrhythm.com\/fr\/news\/how-to-look-at-the-beam-angle-of-outdoor-floodlights.html\/#People_Also_Ask\" >Les gens demandent aussi<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aba5b03 elementor-widget elementor-widget-text-editor\" data-id=\"aba5b03\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Nous entendons souvent le terme \"angle de rayonnement\" lorsqu'il s'agit de projecteurs. Mais savez-vous vraiment ce qu'est l'angle de rayonnement ? Pourquoi est-il si important pour la couverture et l'uniformit\u00e9 de l'\u00e9clairage ? Cet article explique en d\u00e9tail le concept et la formule de calcul de l'angle de rayonnement.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-114c8ae elementor-widget elementor-widget-heading\" data-id=\"114c8ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"What_is_Beam_Angle\"><\/span>Qu'est-ce que l'angle du faisceau ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-620492a e-con-full e-flex e-con e-child\" data-id=\"620492a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-da14247 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"da14247\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>L'angle du faisceau fait r\u00e9f\u00e9rence \u00e0 la largeur ou \u00e0 l'\u00e9tendue du faisceau de lumi\u00e8re \u00e9mis par une lampe. La ligne le long de laquelle la lumi\u00e8re \u00e9met une intensit\u00e9 lumineuse maximale est appel\u00e9e axe optique.<\/p><ul><li><strong>B50% (FWHM, Full Width at Half Maximum)<\/strong><br \/>Il s'agit de la d\u00e9finition de l'angle de faisceau la plus couramment utilis\u00e9e au niveau international. L'angle entre les deux directions o\u00f9 l'intensit\u00e9 lumineuse tombe \u00e0 50% de l'intensit\u00e9 maximale sur le plan de l'axe optique de la lampe est l'angle du faisceau.<\/li><li><strong>B10%<\/strong><br \/>L'angle entre les deux directions de l'axe optique du luminaire o\u00f9 l'intensit\u00e9 lumineuse chute \u00e0 10% de l'intensit\u00e9 maximale. Certains fabricants utilisent B10% car cela indique un angle de faisceau plus large.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ee16d8e elementor-widget elementor-widget-image\" data-id=\"ee16d8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"828\" height=\"677\" src=\"https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/what-is-beam-angle.webp\" class=\"attachment-large size-large wp-image-6898\" alt=\"Qu&#039;est-ce que l&#039;angle du faisceau ?\" srcset=\"https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/what-is-beam-angle.webp 828w, https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/what-is-beam-angle-300x245.webp 300w, https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/what-is-beam-angle-768x628.webp 768w, https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/what-is-beam-angle-15x12.webp 15w, https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/what-is-beam-angle-700x572.webp 700w\" sizes=\"(max-width: 828px) 100vw, 828px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-751d526 elementor-widget elementor-widget-text-editor\" data-id=\"751d526\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Par exemple, l'intensit\u00e9 lumineuse centrale d'un luminaire est de 10 000 cd : L'intensit\u00e9 lumineuse centrale d'un luminaire est de 10 000 cd.<\/p><ul><li>L'intensit\u00e9 lumineuse est maximale \u00e0 0\u00b0 (10 000 cd).<\/li><li>L'intensit\u00e9 lumineuse \u00e0 \u00b130\u00b0 est de 5 000 cd.<\/li><li>L'intensit\u00e9 lumineuse \u00e0 \u00b145\u00b0 est de 1 000 cd.<\/li><\/ul><p>Les angles des faisceaux sont donc les suivants : B50% = 60\u00b0 (parce qu'il va de -30\u00b0 \u00e0 +30\u00b0) ; B10% = 90\u00b0 (parce qu'il va de -45\u00b0 \u00e0 +45\u00b0).<\/p><table style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; text-align: center;\"><thead><tr><th style=\"background: #253D96; color: #ffffff; padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">Cat\u00e9gorie<\/th><th style=\"background: #253D96; color: #ffffff; padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">Gamme typique (\u00b0)<\/th><th style=\"background: #253D96; color: #ffffff; padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">Applications<\/th><th style=\"background: #253D96; color: #ffffff; padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">Caract\u00e9ristiques<\/th><\/tr><\/thead><tbody><tr style=\"background: #f8fafc;\"><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">\u00c9troite<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">10\u00b0-30\u00b0<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Fa\u00e7ades, statues, focalisation \u00e0 longue distance<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Forte intensit\u00e9, fort contraste, petite surface<\/td><\/tr><tr><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Moyen<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">30\u00b0-60\u00b0<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Entr\u00e9es, cours, all\u00e9es<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Couverture et luminosit\u00e9 \u00e9quilibr\u00e9es<\/td><\/tr><tr style=\"background: #f8fafc;\"><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Large<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">60\u00b0-120\u00b0<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Parkings, entrep\u00f4ts, terrains de sport<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Zone \u00e9tendue, lumi\u00e8re homog\u00e8ne, lux central r\u00e9duit<\/td><\/tr><\/tbody><tfoot><tr><td style=\"padding: 8px; border: 1px solid #e5e7eb; font-size: 12px; color: #555;\" colspan=\"4\">Note : Les plages sont des valeurs typiques. L'angle du faisceau est g\u00e9n\u00e9ralement d\u00e9fini \u00e0 B50% (FWHM).<\/td><\/tr><\/tfoot><\/table><p><img decoding=\"async\" class=\"size-full wp-image-6901 aligncenter\" src=\"https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/various-beam-angle-linear-light.webp\" alt=\"Calculateur d&#039;angle de rayonnement\" width=\"850\" height=\"245\" srcset=\"https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/various-beam-angle-linear-light.webp 850w, https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/various-beam-angle-linear-light-300x86.webp 300w, https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/various-beam-angle-linear-light-768x221.webp 768w, https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/various-beam-angle-linear-light-18x5.webp 18w, https:\/\/ledrhythm.com\/wp-content\/uploads\/2024\/07\/various-beam-angle-linear-light-700x202.webp 700w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd25dee elementor-widget elementor-widget-heading\" data-id=\"bd25dee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Beam_Angle_Calculator%E2%80%8B\"><\/span>Calculateur d'angle de rayonnement<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a2c5a7 elementor-widget elementor-widget-text-editor\" data-id=\"3a2c5a7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Le calculateur d'angle de rayonnement que nous utilisons se base sur un angle de rayonnement connu pour estimer sa port\u00e9e d'irradiation et sa hauteur d'installation. En effet, l'angle du faisceau est une valeur optique mesur\u00e9e par le fabricant en laboratoire et indiqu\u00e9e dans les param\u00e8tres du produit.<\/p><p><strong>Formule de calcul de l'angle du faisceau : D = tan (\u03b8 \/ 2) \u00d7 L<\/strong><\/p><p>Signification :<\/p><ul><li>D = Rayon de la zone d'\u00e9clairage<\/li><li>\u03b8 = Angle du faisceau<\/li><li>L = Hauteur de montage<\/li><\/ul><p>Exemple de calcul : Si l'\u00e9clairage est install\u00e9 \u00e0 une hauteur de 5 m\u00e8tres et a un angle de rayonnement de 60\u00b0 :<\/p><ul><li>D = tan(30\u00b0)\u00d75 = 2,89m<\/li><\/ul><p>Il en va de m\u00eame pour le calcul de la hauteur d'installation lorsque la plage d'irradiation est connue. Nous pouvons calculer directement le r\u00e9sultat.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c82aedb elementor-widget elementor-widget-html\" data-id=\"c82aedb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<p>Formule : <strong>D = L \u00d7 tan(\u03b8 \/ 2)<\/strong><\/p>\r\n\r\n<div style=\"display:flex; gap:10px; flex-wrap:wrap; margin-bottom:10px;\">\r\n  <div style=\"flex:1; min-width:100px;\">\r\n    <label>Hauteur de montage (L) :<\/label><br>\r\n    <input type=\"number\" id=\"height\" placeholder=\"Saisir la hauteur\" step=\"0.01\" style=\"width:100%;\">\r\n  <\/div>\r\n\r\n  <div style=\"flex:1; min-width:100px;\">\r\n    <label>Angle du faisceau (\u03b8 en degr\u00e9s) :<\/label><br>\r\n    <input type=\"number\" id=\"angle\" placeholder=\"Entrer l&#039;angle\" step=\"0.1\" style=\"width:100%;\">\r\n  <\/div>\r\n\r\n  <div style=\"flex:1; min-width:100px;\">\r\n    <label>Unit\u00e9 :<\/label><br>\r\n    <select id=\"unit\" style=\"width:100%;\">\r\n      <option value=\"m\">M\u00e8tres (m)<\/option>\r\n      <option value=\"ft\">Pieds (ft)<\/option>\r\n    <\/select>\r\n  <\/div>\r\n\r\n  <div style=\"flex:1; min-width:100px; display:flex; align-items:flex-end;\">\r\n    <button onclick=\"calculate()\" style=\"width:100%;\">Calculer<\/button>\r\n  <\/div>\r\n<\/div>\r\n\r\n<div class=\"result\" id=\"output\" style=\"margin-top:10px;\"><\/div>\r\n\r\n<script>\r\nfunction calculate() {\r\n  \/\/ \u83b7\u53d6\u7528\u6237\u8f93\u5165\r\n  const L = parseFloat(document.getElementById('height').value);\r\n  const theta = parseFloat(document.getElementById('angle').value);\r\n  const unit = document.getElementById('unit').value;\r\n\r\n  \/\/ \u9a8c\u8bc1\u8f93\u5165\r\n  if (isNaN(L) || isNaN(theta) || L <= 0 || theta <= 0) {\r\n    document.getElementById('output').innerText = \"\u26a0\ufe0f Please enter valid values.\";\r\n    return;\r\n  }\r\n\r\n  \/\/ \u8ba1\u7b97\u534a\u5f84\u548c\u76f4\u5f84\r\n  const radians = theta * Math.PI \/ 180;  \r\n  const radius = L * Math.tan(radians \/ 2);\r\n  const diameter = 2 * radius;\r\n\r\n  \/\/ \u8f93\u51fa\u7ed3\u679c\r\n  document.getElementById('output').innerHTML =\r\n    `Beam radius \u2248 <b>${radius.toFixed(2)} ${unit}<\/b><br>\r\n     Beam diameter \u2248 <b>${diameter.toFixed(2)} ${unit}<\/b>`;\r\n}\r\n<\/script>\r\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1fe0933 elementor-widget elementor-widget-heading\" data-id=\"1fe0933\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"How_to_choose_right_beam_angle\"><\/span>Comment choisir l'angle de rayonnement ad\u00e9quat ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b70603 elementor-widget elementor-widget-text-editor\" data-id=\"0b70603\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Besoins en \u00e9clairage<\/strong><\/p><ul><li>Pour mettre en valeur les sculptures et les peintures (\u00e9clairage d'accentuation) : Choisissez un faisceau \u00e9troit (15\u00b0-24\u00b0).<\/li><li>Pour \u00e9clairer les murs et les tableaux (wallwash lighting) : Choisissez un faisceau moyen (24\u00b0-36\u00b0).<\/li><li>Pour fournir un \u00e9clairage spatial de base ou \u00e9clairer des couloirs : Choisissez un faisceau moyennement large (36\u00b0-45\u00b0).<\/li><li>Pour \u00e9clairer une pi\u00e8ce enti\u00e8re (\u00e9clairage d'ambiance) : Choisissez un faisceau large (&gt;60\u00b0).<\/li><li>Pour \u00e9clairer de grandes surfaces ext\u00e9rieures : Choisissez un projecteur avec un faisceau tr\u00e8s large (&gt;90\u00b0).<\/li><\/ul><p><strong>Distance d'\u00e9clairage<\/strong><\/p><p>Plus la source lumineuse est \u00e9loign\u00e9e de l'objet \u00e0 \u00e9clairer, plus l'angle du faisceau n\u00e9cessaire pour produire la m\u00eame taille de spot est \u00e9troit.<\/p><table style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; text-align: center;\"><thead><tr><th style=\"background: #253D96; color: #ffffff; padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">Application<\/th><th style=\"background: #253D96; color: #ffffff; padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">Angle de faisceau recommand\u00e9<\/th><th style=\"background: #253D96; color: #ffffff; padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">Raison<\/th><\/tr><\/thead><tbody><tr style=\"background: #f8fafc;\"><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Mise en valeur d'\u0153uvres d'art ou de statues<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">10\u00b0-30\u00b0 (\u00e9troit)<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Concentrer la lumi\u00e8re sur une petite zone, cr\u00e9er un contraste<\/td><\/tr><tr><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">\u00c9clairage g\u00e9n\u00e9ral des pi\u00e8ces ou des couloirs<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">30\u00b0-60\u00b0 (moyenne)<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Couverture et luminosit\u00e9 \u00e9quilibr\u00e9es<\/td><\/tr><tr style=\"background: #f8fafc;\"><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Parkings, terrains de sport, entrep\u00f4ts<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">60\u00b0-120\u00b0 (large)<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">\u00c9clairer uniform\u00e9ment les grandes surfaces, r\u00e9duire les ombres<\/td><\/tr><tr><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">\u00c9clairage d'appoint pour les \u00e9tag\u00e8res ou les vitrines<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">20\u00b0-40\u00b0 (\u00e9troit \u00e0 moyen)<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Mettre en valeur les produits sans renverser la lumi\u00e8re<\/td><\/tr><tr style=\"background: #f8fafc;\"><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">\u00c9clairage ext\u00e9rieur de jardin ou d'am\u00e9nagement paysager<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">30\u00b0-90\u00b0 (moyen \u00e0 large)<\/td><td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Fournit un \u00e9clairage doux et uniforme sur les plantes et les chemins<\/td><\/tr><\/tbody><tfoot><tr><td style=\"padding: 8px; border: 1px solid #e5e7eb; font-size: 12px; color: #555;\" colspan=\"3\">Note : Les angles des faisceaux sont approximatifs ; choisir en fonction de la hauteur du plafond et de la taille de la zone.<\/td><\/tr><\/tfoot><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9cdbc0a elementor-widget elementor-widget-heading\" data-id=\"9cdbc0a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7797cf elementor-widget elementor-widget-text-editor\" data-id=\"b7797cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>L'angle du faisceau d\u00e9termine la forme et la diffusion de la lumi\u00e8re. Comprendre et utiliser l'angle de rayonnement peut vous permettre d'obtenir une meilleure exp\u00e9rience d'\u00e9clairage. Lors du choix d'une lampe, il est important de se concentrer sur l'angle de rayonnement, et pas seulement sur la puissance (luminosit\u00e9) et la temp\u00e9rature de couleur (couleur).<\/p><p>Nous sommes un fabricant professionnel d'\u00e9clairage LED pour les applications industrielles et commerciales. Nos luminaires offrent une vari\u00e9t\u00e9 d'angles de rayonnement. <a href=\"https:\/\/ledrhythm.com\/fr\/livre-dor\/\" target=\"_blank\" rel=\"noopener\">Contactez nous<\/a> pour personnaliser votre solution d'\u00e9clairage.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e1d1c8 elementor-widget elementor-widget-heading\" data-id=\"2e1d1c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"People_Also_Ask\"><\/span>Les gens demandent aussi<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9b6c92 elementor-widget elementor-widget-n-accordion\" data-id=\"f9b6c92\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accord\u00e9on. Ouvrez les liens avec Enter ou Space, fermez-les avec Escape et naviguez avec les touches fl\u00e9ch\u00e9es.\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2610\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-2610\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Comment mesurer l'angle du faisceau ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2610\" class=\"elementor-element elementor-element-fe40a65 e-con-full e-flex e-con e-child\" data-id=\"fe40a65\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-154bf1a elementor-widget elementor-widget-text-editor\" data-id=\"154bf1a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>L'angle du faisceau est g\u00e9n\u00e9ralement mesur\u00e9 par le fabricant en laboratoire \u00e0 l'aide d'un photom\u00e8tre ou d'un luxm\u00e8tre. La m\u00e9thode standard consiste \u00e0 d\u00e9terminer l'angle auquel l'intensit\u00e9 lumineuse tombe \u00e0 50% de sa valeur maximale (B50%), soit \u00e0 partir des donn\u00e9es de l'IES, soit en mesurant directement \u00e0 la surface.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2611\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2611\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Quel est le meilleur angle de rayonnement pour les projecteurs ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2611\" class=\"elementor-element elementor-element-1b73bc3 e-con-full e-flex e-con e-child\" data-id=\"1b73bc3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-40ea463 elementor-widget elementor-widget-text-editor\" data-id=\"40ea463\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>L'angle de rayonnement optimal d'un projecteur d\u00e9pend de l'application sp\u00e9cifique :<\/p><ul><li>Angle de rayonnement \u00e9troit (10\u00b0-30\u00b0) : Utilis\u00e9 pour mettre en \u00e9vidence des objets ou des zones sp\u00e9cifiques.<\/li><li>Angle de rayonnement moyen (30\u00b0-60\u00b0) : Utilis\u00e9 pour l'\u00e9clairage g\u00e9n\u00e9ral.<\/li><li>Grand angle de rayonnement (60\u00b0-120\u00b0) : Utilis\u00e9 pour \u00e9clairer de grands espaces tels que les terrains de sport et les parkings.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2612\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2612\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> L'angle de rayonnement d'un luminaire est-il fixe \u00e0 la sortie de l'usine ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2612\" class=\"elementor-element elementor-element-ed71ae1 e-con-full e-flex e-con e-child\" data-id=\"ed71ae1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7527022 elementor-widget elementor-widget-text-editor\" data-id=\"7527022\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Oui. La plupart des luminaires \u00e0 LED ont un angle de rayonnement fixe d\u00e9fini par leur optique. Pour le modifier, il faut g\u00e9n\u00e9ralement remplacer la lentille ou le r\u00e9flecteur. Certains projecteurs orientables sp\u00e9cialis\u00e9s permettent de modifier l'angle de rayonnement, mais pour les projecteurs classiques, l'angle de rayonnement est pr\u00e9d\u00e9termin\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction Nous entendons souvent le terme \"angle de rayonnement\" lorsqu'il s'agit de projecteurs. Mais savez-vous vraiment ce qu'est l'angle de rayonnement ? Pourquoi est-il si important pour la couverture et l'uniformit\u00e9 de l'\u00e9clairage ? Cet article explique en d\u00e9tail le concept et la formule de calcul de l'angle de rayonnement. Qu'est-ce que l'angle de rayonnement ? L'angle de rayonnement fait r\u00e9f\u00e9rence \u00e0 la largeur ou...<\/p>","protected":false},"author":1,"featured_media":6868,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-3482","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/posts\/3482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/comments?post=3482"}],"version-history":[{"count":38,"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/posts\/3482\/revisions"}],"predecessor-version":[{"id":6915,"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/posts\/3482\/revisions\/6915"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/media\/6868"}],"wp:attachment":[{"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/media?parent=3482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/categories?post=3482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ledrhythm.com\/fr\/wp-json\/wp\/v2\/tags?post=3482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}