{"id":19763,"date":"2025-06-20T17:02:25","date_gmt":"2025-06-20T09:02:25","guid":{"rendered":"https:\/\/www.koonew.com\/?p=19763"},"modified":"2025-09-02T10:05:47","modified_gmt":"2025-09-02T02:05:47","slug":"ecran-de-projecteur-alr","status":"publish","type":"post","link":"https:\/\/www.koonew.com\/fr\/ecran-de-projecteur-alr\/","title":{"rendered":"Qu'est-ce qu'un \u00e9cran de projection ALR\uff1f ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"19763\" class=\"elementor elementor-19763\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9302298 e-con-full e-flex e-con e-parent\" data-id=\"9302298\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-e639df7 e-con-full e-flex e-con e-child\" data-id=\"e639df7\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3c1f029 elementor-widget__width-initial elementor-widget 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data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce qu'un \u00e9cran de projection ALR\uff1f ?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47ee844 elementor-widget elementor-widget-post-info\" data-id=\"47ee844\" data-element_type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-d2e0471\" itemprop=\"datePublished\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>06\/20\/2025<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-103a9c1 e-con-full e-flex e-con e-child\" data-id=\"103a9c1\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3cae2ed elementor-share-buttons--view-icon elementor-share-buttons--skin-framed elementor-share-buttons--shape-circle elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"3cae2ed\" data-element_type=\"widget\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-grid\" role=\"list\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_facebook\" role=\"button\" tabindex=\"0\" aria-label=\"Partager sur facebook\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<svg class=\"e-font-icon-svg e-fab-facebook\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256C504 119 393 8 256 8S8 119 8 256c0 123.78 90.69 226.38 209.25 245V327.69h-63V256h63v-54.64c0-62.15 37-96.48 93.67-96.48 27.14 0 55.52 4.84 55.52 4.84v61h-31.28c-30.8 0-40.41 19.12-40.41 38.73V256h68.78l-11 71.69h-57.78V501C413.31 482.38 504 379.78 504 256z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_x-twitter\" role=\"button\" tabindex=\"0\" aria-label=\"Partager sur x-twitter\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<svg class=\"e-font-icon-svg e-fab-x-twitter\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M389.2 48h70.6L305.6 224.2 487 464H345L233.7 318.6 106.5 464H35.8L200.7 275.5 26.8 48H172.4L272.9 180.9 389.2 48zM364.4 421.8h39.1L151.1 88h-42L364.4 421.8z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_pinterest\" role=\"button\" tabindex=\"0\" aria-label=\"Partager sur pinterest\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<svg class=\"e-font-icon-svg e-fab-pinterest\" viewbox=\"0 0 496 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M496 256c0 137-111 248-248 248-25.6 0-50.2-3.9-73.4-11.1 10.1-16.5 25.2-43.5 30.8-65 3-11.6 15.4-59 15.4-59 8.1 15.4 31.7 28.5 56.8 28.5 74.8 0 128.7-68.8 128.7-154.3 0-81.9-66.9-143.2-152.9-143.2-107 0-163.9 71.8-163.9 150.1 0 36.4 19.4 81.7 50.3 96.1 4.7 2.2 7.2 1.2 8.3-3.3.8-3.4 5-20.3 6.9-28.1.6-2.5.3-4.7-1.7-7.1-10.1-12.5-18.3-35.3-18.3-56.6 0-54.7 41.4-107.6 112-107.6 60.9 0 103.6 41.5 103.6 100.9 0 67.1-33.9 113.6-78 113.6-24.3 0-42.6-20.1-36.7-44.8 7-29.5 20.5-61.3 20.5-82.6 0-19-10.2-34.9-31.4-34.9-24.9 0-44.9 25.7-44.9 60.2 0 22 7.4 36.8 7.4 36.8s-24.5 103.8-29 123.2c-5 21.4-3 51.6-.9 71.2C65.4 450.9 0 361.1 0 256 0 119 111 8 248 8s248 111 248 248z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3150e6d e-flex e-con-boxed e-con e-parent\" data-id=\"3150e6d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-519ad2d e-con-full e-flex e-con e-child\" data-id=\"519ad2d\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-6048940 e-con-full e-flex e-con e-child\" data-id=\"6048940\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-37c82c0 elementor-hidden-desktop elementor-hidden-tablet elementor-hidden-mobile elementor-widget elementor-widget-image\" data-id=\"37c82c0\" data-element_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=\"1024\" height=\"430\" src=\"https:\/\/www.koonew.com\/wp-content\/uploads\/2022\/11\/banner1-home-2-1024x430.webp\" class=\"attachment-large size-large wp-image-16960\" alt=\"\u00c9cran de projection intelligent d&#039;un fabricant de projecteurs\" srcset=\"https:\/\/www.koonew.com\/wp-content\/uploads\/2022\/11\/banner1-home-2-1024x430.webp 1024w, https:\/\/www.koonew.com\/wp-content\/uploads\/2022\/11\/banner1-home-2-300x126.webp 300w, https:\/\/www.koonew.com\/wp-content\/uploads\/2022\/11\/banner1-home-2-768x322.webp 768w, https:\/\/www.koonew.com\/wp-content\/uploads\/2022\/11\/banner1-home-2-1536x645.webp 1536w, https:\/\/www.koonew.com\/wp-content\/uploads\/2022\/11\/banner1-home-2-2048x860.webp 2048w, https:\/\/www.koonew.com\/wp-content\/uploads\/2022\/11\/banner1-home-2-18x8.webp 18w, https:\/\/www.koonew.com\/wp-content\/uploads\/2022\/11\/banner1-home-2-1064x447.webp 1064w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\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-4fc9843 elementor-widget elementor-widget-heading\" data-id=\"4fc9843\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce qu'un \u00e9cran de projection ALR\uff1f ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-376f8a9 elementor-widget__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"376f8a9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Un \u00e9cran de projecteur ALR (Ambient Light Rejecting) est con\u00e7u pour am\u00e9liorer la qualit\u00e9 de l'image en rejetant ou en minimisant la lumi\u00e8re ambiante dans une pi\u00e8ce. Ce type d'\u00e9cran permet de s'assurer que l'image du projecteur reste claire, lumineuse et nette, m\u00eame lorsqu'il y a de la lumi\u00e8re dans la pi\u00e8ce. Il fonctionne \u00e0 l'aide d'un rev\u00eatement ou d'un mat\u00e9riau sp\u00e9cial qui refl\u00e8te uniquement la lumi\u00e8re provenant directement du projecteur, tout en rejetant la lumi\u00e8re provenant d'autres sources (comme l'\u00e9clairage z\u00e9nithal ou les fen\u00eatres).<\/p><p>Voici comment fonctionne l'\u00e9cran de projection ALR et quelle est sa technologie de base<\/p><p>L'\u00e9cran est con\u00e7u pour ne refl\u00e9ter que la lumi\u00e8re du projecteur et absorber ou diffuser la lumi\u00e8re ambiante, qui peut alt\u00e9rer l'image sur un \u00e9cran standard. En rejetant la lumi\u00e8re lat\u00e9rale ou a\u00e9rienne, l'\u00e9cran ALR am\u00e9liore le rapport de contraste, ce qui rend les sc\u00e8nes sombres plus profondes et plus vivantes, m\u00eame dans les pi\u00e8ces bien \u00e9clair\u00e9es. Il est particuli\u00e8rement utile dans les pi\u00e8ces o\u00f9 la lumi\u00e8re ambiante est importante, telles que les salons avec fen\u00eatres ou les pi\u00e8ces avec un fort \u00e9clairage z\u00e9nithal.<\/p><ul><li><strong>Le c\u0153ur de la technologie r\u00e9side dans l'\u00e9cran<\/strong><strong>'<\/strong><strong>s o<\/strong><strong>ptique <\/strong><strong>s<\/strong><strong>tructure<\/strong>: Les \u00e9crans ALR utilisent des rev\u00eatements optiques en micro-couches (par exemple, des motifs en dents de scie ou des lentilles lenticulaires) pour diriger la lumi\u00e8re du projecteur vers l'observateur et disperser la lumi\u00e8re ambiante dans d'autres directions.<\/li><li>Pour les projecteurs \u00e0 focale ultra-courte (UST), les \u00e9crans ALR utilisent souvent une \"grille noire\" ou une couche de \"Fresnel\" pour rejeter sp\u00e9cifiquement la lumi\u00e8re du plafond (appel\u00e9e \"couche de Fresnel\").\u00a0<strong>CLR<\/strong>ou rejet des plafonniers). <strong>L'ALR s<\/strong><strong>cr\u00e9en<\/strong><strong>t<\/strong>a g\u00e9n\u00e9ralement un faible gain (0,3-0,6), absorbant la lumi\u00e8re parasite au lieu de la refl\u00e9ter largement. Cela r\u00e9duit les points chauds et augmente le contraste, mais r\u00e9duit l'angle de vision optimal (g\u00e9n\u00e9ralement 160\u00b0-170\u00b0).<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1831f6c elementor-widget elementor-widget-heading\" data-id=\"1831f6c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Principales applications et avantages des \u00e9crans de projection ALR<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-211f321 elementor-widget elementor-widget-heading\" data-id=\"211f321\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Environnements lumineux<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-848ab37 elementor-widget__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"848ab37\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Id\u00e9al pour les salons, les salles de conf\u00e9rence ou les installations ext\u00e9rieures o\u00f9 le contr\u00f4le de la lumi\u00e8re ambiante est difficile.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bdc3543 elementor-widget elementor-widget-heading\" data-id=\"bdc3543\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Contraste am\u00e9lior\u00e9<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d5dbcdd elementor-widget elementor-widget-text-editor\" data-id=\"d5dbcdd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Il conserve des noirs profonds et des couleurs \u00e9clatantes m\u00eame sous un \u00e9clairage mod\u00e9r\u00e9, surpassant les \u00e9crans blancs\/gris standard.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a0111e elementor-widget elementor-widget-heading\" data-id=\"9a0111e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Compatibilit\u00e9 UST<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6152ae5 elementor-widget elementor-widget-text-editor\" data-id=\"6152ae5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Indispensable pour les t\u00e9l\u00e9viseurs laser et les projecteurs \u00e0 courte focale, car les projections murales subissent de graves pertes sans \u00e9crans ALR.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7b67c7 elementor-widget elementor-widget-heading\" data-id=\"c7b67c7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Installation flexible<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b654b0 elementor-widget elementor-widget-text-editor\" data-id=\"8b654b0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Disponible en version motoris\u00e9e tendue, \u00e0 cadre fixe, sur\u00e9lev\u00e9e au sol ou encastr\u00e9e dans le plafond.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fa83781 elementor-widget elementor-widget-heading\" data-id=\"fa83781\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Limites et consid\u00e9rations de l'\u00e9cran de projection ALR<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a733176 elementor-widget elementor-widget-heading\" data-id=\"a733176\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Angle de vue<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-185a4c8 elementor-widget elementor-widget-text-editor\" data-id=\"185a4c8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>La zone de visualisation optimale est plus \u00e9troite que celle des \u00e9crans standard ; les personnes qui ne sont pas dans l'axe de l'\u00e9cran peuvent voir des images plus sombres.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e2b056b elementor-widget elementor-widget-heading\" data-id=\"e2b056b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Compatibilit\u00e9 des projecteurs<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d138c0 elementor-widget elementor-widget-text-editor\" data-id=\"8d138c0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>N\u00e9cessite des projecteurs \u00e0 haute luminosit\u00e9 en raison du faible gain d'\u00e9cran.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0fc2156 elementor-widget elementor-widget-heading\" data-id=\"0fc2156\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Co\u00fbt<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67a76d3 elementor-widget elementor-widget-text-editor\" data-id=\"67a76d3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Plus chers que les \u00e9crans non ALR.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58f39aa elementor-widget elementor-widget-heading\" data-id=\"58f39aa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Contraintes d'installation<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a51e131 elementor-widget elementor-widget-text-editor\" data-id=\"a51e131\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Certains mat\u00e9riaux ALR (par exemple, les couches optiques rigides) ne peuvent pas \u00eatre enroul\u00e9s, ce qui limite leur utilisation dans les \u00e9crans r\u00e9tractables.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e78608c elementor-widget elementor-widget-heading\" data-id=\"e78608c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Types d'\u00e9crans de projection ALR<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f6fb2ae elementor-widget elementor-widget-text-editor\" data-id=\"f6fb2ae\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<table><tbody><tr><td><p><strong>Type<\/strong><\/p><\/td><td width=\"401\"><p><strong>Meilleur pour<\/strong><\/p><\/td><\/tr><tr><td><p><strong>UST ALR<\/strong><\/p><\/td><td width=\"401\"><p>T\u00e9l\u00e9viseurs laser\/\u00e0 courte focale<\/p><\/td><\/tr><tr><td><p><strong>ALR \u00e0 longue port\u00e9e<\/strong><\/p><\/td><td width=\"401\"><p>Projecteurs traditionnels<\/p><\/td><\/tr><tr><td><p><strong>Acoustique Transparent<\/strong><\/p><\/td><td width=\"401\"><p>Th\u00e9\u00e2tres \u00e0 domicile (haut-parleurs derri\u00e8re l'\u00e9cran)<\/p><\/td><\/tr><tr><td><p><strong>Portable\/motoris\u00e9<\/strong><\/p><\/td><td width=\"401\"><p>Configurations temporaires\/versatiles<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eb44dbf elementor-widget elementor-widget-heading\" data-id=\"eb44dbf\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conseils d'utilisation optimale<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-602f113 elementor-widget elementor-widget-text-editor\" data-id=\"602f113\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Configuration de la salle<\/strong>: Associez-les \u00e0 des murs\/plafonds de couleur fonc\u00e9e pour minimiser les reflets.<\/p><p><strong>Taille de l'\u00e9cran<\/strong>: Adapter \u00e0 la distance d'observation (par exemple, 100-120\u2033 pour 4-5 m\u00e8tres).<\/p><p><strong>Maintenance<\/strong>: \u00c9viter de toucher la couche optique ; d\u00e9poussi\u00e9rer avec un chiffon doux en microfibres.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-34aac65 e-con-full elementor-hidden-mobile e-flex e-con e-child\" data-id=\"34aac65\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1683ffa e-con-full elementor-hidden-mobile e-flex e-con e-child\" data-id=\"1683ffa\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-3299a62 e-con-full e-flex e-con e-child\" data-id=\"3299a62\" data-element_type=\"container\" data-settings=\"{&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;],&quot;sticky_offset&quot;:60,&quot;sticky_parent&quot;:&quot;yes&quot;,&quot;sticky_effects_offset&quot;:0,&quot;sticky_anchor_link_offset&quot;:0}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4bfd6ed elementor-widget elementor-widget-table-of-contents\" data-id=\"4bfd6ed\" data-element_type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;bullets&quot;,&quot;icon&quot;:{&quot;value&quot;:&quot;&quot;,&quot;library&quot;:&quot;&quot;},&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:0,&quot;sizes&quot;:[]},&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t<h2 class=\"elementor-toc__header-title\">\n\t\t\t\tNavigation rapide\t\t\t<\/h2>\n\t\t\t\t\t<\/div>\n\t\t<div id=\"elementor-toc__4bfd6ed\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b569a59 e-con-full e-flex e-con e-child\" data-id=\"b569a59\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e0b87c3 elementor-widget elementor-widget-image\" data-id=\"e0b87c3\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.koonew.com\/fr\/produit\/ecran-mural-pour-projecteur-uhd-75-pouces-alr-fresnel\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.koonew.com\/wp-content\/uploads\/2025\/04\/F-75-2-2.webp\" class=\"attachment-full size-full wp-image-16332\" alt=\"\u00c9cran de projection au format 16:9\" srcset=\"https:\/\/www.koonew.com\/wp-content\/uploads\/2025\/04\/F-75-2-2.webp 800w, https:\/\/www.koonew.com\/wp-content\/uploads\/2025\/04\/F-75-2-2-300x300.webp 300w, https:\/\/www.koonew.com\/wp-content\/uploads\/2025\/04\/F-75-2-2-150x150.webp 150w, https:\/\/www.koonew.com\/wp-content\/uploads\/2025\/04\/F-75-2-2-768x768.webp 768w, https:\/\/www.koonew.com\/wp-content\/uploads\/2025\/04\/F-75-2-2-200x200.webp 200w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e519b3 elementor-widget elementor-widget-heading\" data-id=\"0e519b3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.koonew.com\/fr\/produit\/ecran-mural-pour-projecteur-uhd-75-pouces-alr-fresnel\/\">Koonew 75 pouces ALR Fresnel Screen<\/a><\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5392380 elementor-widget elementor-widget-heading\" data-id=\"5392380\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Soyez le premier \u00e0 savoir<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7fbd759 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"7fbd759\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ae36310 elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"ae36310\" data-element_type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" action=\"\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"19763\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"ae36310\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"KOONEW\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-lg  elementor-field-textual\" placeholder=\"Saisissez votre adresse \u00e9lectronique\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-lg\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">S'abonner<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\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>Les \u00e9crans ALR (Ambient Light Rejecting) am\u00e9liorent la clart\u00e9 et le contraste de l'image, garantissant une exp\u00e9rience visuelle lumineuse et immersive, m\u00eame dans les pi\u00e8ces bien \u00e9clair\u00e9es.<\/p>","protected":false},"author":1,"featured_media":20562,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-19763","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products-learning"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is ALR projector screen\uff1f<\/title>\n<meta name=\"description\" content=\"ALR (Ambient Light Rejecting) screens enhance image clarity and contrast, ensuring a bright, immersive viewing experience even in well-lit rooms\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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