{"id":4097,"date":"2025-10-16T05:51:31","date_gmt":"2025-10-16T05:51:31","guid":{"rendered":"https:\/\/pergolalights.net\/?p=4097"},"modified":"2026-04-03T07:57:32","modified_gmt":"2026-04-03T07:57:32","slug":"outdoor-floodlights-beam-angle-selection-guide","status":"publish","type":"post","link":"https:\/\/pergolalights.net\/it\/outdoor-floodlights-beam-angle-selection-guide\/","title":{"rendered":"Lettura essenziale per l'illuminazione esterna - Guida alla scelta di proiettori e wall washers per esterni"},"content":{"rendered":"<div class=\"row align-center\"  id=\"row-498571235\">\n\n\t<div id=\"col-1626662587\" 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-870609892\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-870609892 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-1278435413\">\n\n\t<div id=\"col-707085343\" 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-2680583395\" class=\"text\">\n\t\t\n<h2><strong>1. Sai davvero come valutare l'angolo di fascio di un proiettore da esterno?<\/strong><\/h2>\n\t\t\n<style>\n#text-2680583395 {\n  font-size: 0.75rem;\n  color: rgb(255, 255, 255);\n}\n#text-2680583395 > * {\n  color: rgb(255, 255, 255);\n}\n@media (min-width:550px) {\n  #text-2680583395 {\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-707085343 > .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-897864128\" class=\"text\">\n\t\t\n<p>\u00c8 stata sollevata una questione: nei requisiti tecnici relativi alle applicazioni di illuminazione notturna a LED, nella tabella sull'efficienza degli apparecchi per i proiettori a LED a luce bianca, la Nota 1 recita: \u2018B10% indica l'angolo del fascio calcolato sulla base del 10% del valore massimo di intensit\u00e0 luminosa, mentre B50% indica l'angolo del fascio calcolato sulla base del 50% del valore massimo di intensit\u00e0 luminosa.\u2019 Come va interpretato esattamente B10% in questo contesto?<\/p>\n\t\t\n<style>\n#text-897864128 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-897864128 {\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_1370546407\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1215\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Luminaire_efficiency_of_white_light_LED_floodlights-scaled.webp\" class=\"attachment-original size-original\" alt=\"Luminaire_efficiency_of_white_light_LED_floodlights\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Luminaire_efficiency_of_white_light_LED_floodlights-scaled.webp 2560w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Luminaire_efficiency_of_white_light_LED_floodlights-800x380.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Luminaire_efficiency_of_white_light_LED_floodlights-1400x664.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Luminaire_efficiency_of_white_light_LED_floodlights-768x364.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Luminaire_efficiency_of_white_light_LED_floodlights-1536x729.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Luminaire_efficiency_of_white_light_LED_floodlights-2048x972.webp 2048w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Luminaire_efficiency_of_white_light_LED_floodlights-18x9.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Luminaire_efficiency_of_white_light_LED_floodlights-510x242.webp 510w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\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_1370546407 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-1038045710\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1038045710 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2709422279\" class=\"text\">\n\t\t\n<p>Il codice B10% si riferisce in realt\u00e0 all'angolo di intensit\u00e0 luminosa 10%, noto anche come angolo di intensit\u00e0 luminosa 1\/10, comunemente indicato come \"angolo di campo\". Nelle applicazioni pratiche, compare spesso negli standard IES nordamericani e si trova frequentemente nelle schede tecniche dei proiettori da esterno di fabbrica. Viene inoltre utilizzato nei requisiti tecnici per le applicazioni di illuminazione notturna a LED.<\/p>\n\t\t\n<style>\n#text-2709422279 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-2709422279 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3496668266\" class=\"text\">\n\t\t\n<p>Di solito si esamina l'angolo del fascio luminoso, il pi\u00f9 delle volte l'angolo di met\u00e0 intensit\u00e0, ovvero l'angolo corrispondente al valore di intensit\u00e0 luminosa pari alla met\u00e0 dell'intensit\u00e0 luminosa massima. Prendendo come esempio il diagramma sottostante, il valore massimo dell'intensit\u00e0 luminosa della curva di distribuzione della luce \u00e8 12.889 cd. Ho diviso l'intervallo di intensit\u00e0 in dieci segmenti uguali. Pertanto, la posizione dell'intensit\u00e0 50% corrisponde al cerchio nel quinto segmento. L'angolo formato tra la linea che collega il punto di intersezione del cerchio del quinto segmento con la curva di distribuzione luminosa e l'origine \u00e8 l'angolo di met\u00e0 intensit\u00e0. Nel diagramma sottostante, l'angolo di met\u00e0 intensit\u00e0 della curva di distribuzione luminosa \u00e8 di 29\u00b0.<\/p>\n\t\t\n<style>\n#text-3496668266 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-3496668266 {\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_742216669\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1197\" height=\"546\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/half-intensity_angle_of_the_light_distribution_curve_is_29.webp\" class=\"attachment-original size-original\" alt=\"half-intensity_angle_of_the_light_distribution_curve_is_29\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/half-intensity_angle_of_the_light_distribution_curve_is_29.webp 1197w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/half-intensity_angle_of_the_light_distribution_curve_is_29-800x365.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/half-intensity_angle_of_the_light_distribution_curve_is_29-768x350.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/half-intensity_angle_of_the_light_distribution_curve_is_29-18x8.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/half-intensity_angle_of_the_light_distribution_curve_is_29-510x233.webp 510w\" sizes=\"auto, (max-width: 1197px) 100vw, 1197px\" \/>\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_742216669 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-958013571\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-958013571 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2085200207\" class=\"text\">\n\t\t\n<p>Analogamente, l'angolo di intensit\u00e0 luminosa del modello 10% si determina dividendo il valore massimo di intensit\u00e0 luminosa in dieci parti uguali e calcolando poi l'angolo formato dalla linea che collega il punto di intersezione del primo segmento circolare con la curva di distribuzione luminosa e l'origine. Come mostrato nella figura sottostante, l'angolo di intensit\u00e0 luminosa del 10% \u00e8 di 47\u00b0.<\/p>\n\t\t\n<style>\n#text-2085200207 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-2085200207 {\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_1285233813\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1197\" height=\"546\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/the_10_light_intensity_angle_is_47\u00b0.webp\" class=\"attachment-original size-original\" alt=\"the_10%_light_intensity_angle_is_47\u00b0\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/the_10_light_intensity_angle_is_47\u00b0.webp 1197w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/the_10_light_intensity_angle_is_47\u00b0-800x365.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/the_10_light_intensity_angle_is_47\u00b0-768x350.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/the_10_light_intensity_angle_is_47\u00b0-18x8.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/the_10_light_intensity_angle_is_47\u00b0-510x233.webp 510w\" sizes=\"auto, (max-width: 1197px) 100vw, 1197px\" \/>\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_1285233813 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1758083263\" class=\"text\">\n\t\t\n<p>Quanto sopra spiega come leggere l'angolo relativo all'intensit\u00e0 luminosa del modello 10%.<\/p>\n\t\t\n<style>\n#text-1758083263 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-1758083263 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2969495505\" class=\"text\">\n\t\t\n<p>Molti potrebbero obiettare che una curva di distribuzione luminosa, presa da sola, \u00e8 piuttosto difficile da interpretare; quelle riportate nei cataloghi cartacei tendono ad essere piuttosto piccole, rendendo difficile distinguere gli angoli.<\/p>\n\t\t\n<style>\n#text-2969495505 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-2969495505 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1179770116\" class=\"text\">\n\t\t\n<p>Se si dispone del file IES fornito dal produttore, \u00e8 piuttosto comodo aprirlo direttamente nel software di lettura. Prendendo come esempio la curva di distribuzione luminosa citata in precedenza, una volta aperta nel software, essa viene visualizzata come mostrato nella figura sottostante.<\/p>\n\t\t\n<style>\n#text-1179770116 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-1179770116 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-559380646\">\n\n\t<div id=\"col-1146091656\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\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_2026474701\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"870\" height=\"870\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file.webp\" class=\"attachment-original size-original\" alt=\"IES_file\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file.webp 870w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file-400x400.webp 400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file-800x800.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file-280x280.webp 280w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file-768x768.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file-12x12.webp 12w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file-247x247.webp 247w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file-510x510.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file-100x100.webp 100w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/IES_file-50x50.webp 50w\" sizes=\"auto, (max-width: 870px) 100vw, 870px\" \/>\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_2026474701 {\n  width: 49%;\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\t<div id=\"text-788132296\" class=\"text\">\n\t\t\n<p>All'apertura della schermata dei parametri tramite il software, verranno visualizzati i seguenti parametri, tra cui l'angolo di intensit\u00e0 luminosa del 50% e quello del 10%. L'immagine sottostante mostra rispettivamente 29,2\u00b0 e 47,6\u00b0, valori che corrispondono quasi perfettamente alle nostre letture manuali.<\/p>\n\t\t\n<style>\n#text-788132296 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-788132296 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-412590989\">\n\n\t<div id=\"col-363279288\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\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_1205486550\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"290\" height=\"250\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/parameter_readout_via_software.webp\" class=\"attachment-original size-original\" alt=\"parameter_readout_via_software\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/parameter_readout_via_software.webp 290w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/parameter_readout_via_software-14x12.webp 14w\" sizes=\"auto, (max-width: 290px) 100vw, 290px\" \/>\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_1205486550 {\n  width: 48%;\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=\"is-divider divider clearfix\" style=\"max-width:50px;\"><\/div>\n\t<div id=\"gap-1703649667\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1703649667 {\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-1901545423\">\n\n\t<div id=\"col-821122636\" 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<div class=\"row\"  id=\"row-1586451906\">\n\n\t<div id=\"col-81758448\" 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-2665226806\" class=\"text\">\n\t\t\n<h2><strong>2. Classificazione e scelta dei proiettori per esterni<\/strong><\/h2>\n\t\t\n<style>\n#text-2665226806 {\n  font-size: 0.75rem;\n  color: rgb(255, 255, 255);\n}\n#text-2665226806 > * {\n  color: rgb(255, 255, 255);\n}\n@media (min-width:550px) {\n  #text-2665226806 {\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-81758448 > .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-2412584656\" class=\"text\">\n\t\t\n<p>Poich\u00e9 l'angolo del fascio dei proiettori da esterno viene misurato all'angolo in cui si registra 1\/10 dell'intensit\u00e0 luminosa, anche le classificazioni riportate di seguito sono suddivise in base all'angolo corrispondente a 1\/10 dell'intensit\u00e0 luminosa.<\/p>\n\t\t\n<style>\n#text-2412584656 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2412584656 {\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_610525305\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1169\" height=\"612\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/1.10th_luminous_intensity_angle.webp\" class=\"attachment-original size-original\" alt=\"1.10th_luminous_intensity_angle\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/1.10th_luminous_intensity_angle.webp 1169w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/1.10th_luminous_intensity_angle-764x400.webp 764w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/1.10th_luminous_intensity_angle-768x402.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/1.10th_luminous_intensity_angle-18x9.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/1.10th_luminous_intensity_angle-510x267.webp 510w\" sizes=\"auto, (max-width: 1169px) 100vw, 1169px\" \/>\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_610525305 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-481900793\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-481900793 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1576149685\" class=\"text\">\n\t\t\n<p>Secondo la classificazione dei proiettori stabilita dalla NEMA (National Electrical Manufacturers Association), gli angoli di fascio dei proiettori standard sono suddivisi come segue.<\/p>\n\t\t\n<style>\n#text-1576149685 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-1576149685 {\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_541432473\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1197\" height=\"720\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/beam_angles_of_standard_floodlights_are_categorised.webp\" class=\"attachment-original size-original\" alt=\"beam_angles_of_standard_floodlights_are_categorised\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/beam_angles_of_standard_floodlights_are_categorised.webp 1197w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/beam_angles_of_standard_floodlights_are_categorised-665x400.webp 665w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/beam_angles_of_standard_floodlights_are_categorised-768x462.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/beam_angles_of_standard_floodlights_are_categorised-18x12.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/beam_angles_of_standard_floodlights_are_categorised-510x307.webp 510w\" sizes=\"auto, (max-width: 1197px) 100vw, 1197px\" \/>\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_541432473 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1374883795\" class=\"text\">\n\t\t\n<p>La tabella classifica gli angoli del fascio luminoso dei proiettori in sette classi, ciascuna con un proprio intervallo angolare specificato<\/p>\n\t\t\n<style>\n#text-1374883795 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-1374883795 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1643698803\" class=\"text\">\n\t\t\n<p>Le distanze di proiezione riportate nella tabella possono servire come riferimento generale; la maggior parte dei proiettori in Nord America \u00e8 classificata in base a queste specifiche.<\/p>\n\t\t\n<style>\n#text-1643698803 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-1643698803 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1731019758\" class=\"text\">\n\t\t\n<p>Ad esempio, i proiettori con un angolo di fascio di 1\/10, compreso tra 10\u00b0 e 18\u00b0, possono illuminare fino a oltre 75 metri; quelli con un angolo di fascio compreso tra 18\u00b0 e 29\u00b0 hanno una portata da 65 a 75 metri, e cos\u00ec via.<\/p>\n\t\t\n<style>\n#text-1731019758 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-1731019758 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3272068510\" class=\"text\">\n\t\t\n<p>Per le applicazioni di illuminazione da esterno, questi valori di angolo e distanza possono servire da riferimento.<\/p>\n\t\t\n<style>\n#text-3272068510 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-3272068510 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-2126549336\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-2126549336 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2578758778\" class=\"text\">\n\t\t\n<p>Tuttavia, gli apparecchi per esterni spesso non producono un fascio luminoso simmetrico circolare; al contrario, generano spesso un fascio luminoso asimmetrico. Si prendano ad esempio gli apparecchi lineari per il wallwashing utilizzati sulle facciate esterne degli edifici. In teoria, questi apparecchi per il wallwashing delle facciate esterne sono anche proiettori, in particolare proiettori con distribuzione luminosa asimmetrica. Come viene quindi rappresentata questa classificazione della distribuzione luminosa asimmetrica?<\/p>\n\t\t\n<style>\n#text-2578758778 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-2578758778 {\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_739089649\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1197\" height=\"414\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/NEMA_classification_system.webp\" class=\"attachment-original size-original\" alt=\"NEMA_classification_system\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/NEMA_classification_system.webp 1197w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/NEMA_classification_system-800x277.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/NEMA_classification_system-768x266.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/NEMA_classification_system-18x6.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/NEMA_classification_system-510x176.webp 510w\" sizes=\"auto, (max-width: 1197px) 100vw, 1197px\" \/>\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_739089649 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1008365414\" class=\"text\">\n\t\t\n<p>\u00c8 possibile classificare gli angoli del fascio in entrambe le direzioni secondo il sistema di classificazione NEMA, come illustrato nel diagramma sopra riportato. Ad esempio, il fascio luminoso di un apparecchio wall-washing da 20\u00b0\u00d760\u00b0 per facciate esterne pu\u00f2 essere indicato come NEMA 2\u00d74. La distanza di wall-washing pu\u00f2 comunque essere ricavata dalla tabella delle distanze di proiezione; NEMA 2\u00d74 raggiunge tipicamente una distanza di wall-washing di circa 65 metri in altezza.<\/p>\n\t\t\n<style>\n#text-1008365414 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-1008365414 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-534322080\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-534322080 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3033259026\" class=\"text\">\n\t\t\n<p>E l'illuminazione per gli impianti sportivi? La classifichiamo all'interno dello stesso intervallo angolare, sebbene vi siano lievi variazioni nella classificazione e nell'applicazione.<\/p>\n\t\t\n<style>\n#text-3033259026 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-3033259026 {\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_1293408446\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"873\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Classification_of_Sports_Lighting_Beam_Angles_by_Application-01-scaled.webp\" class=\"attachment-original size-original\" alt=\"Classification_of_Sports_Lighting_Beam_Angles_by_Application-01\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Classification_of_Sports_Lighting_Beam_Angles_by_Application-01-scaled.webp 2560w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Classification_of_Sports_Lighting_Beam_Angles_by_Application-01-800x273.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Classification_of_Sports_Lighting_Beam_Angles_by_Application-01-1400x477.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Classification_of_Sports_Lighting_Beam_Angles_by_Application-01-768x262.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Classification_of_Sports_Lighting_Beam_Angles_by_Application-01-1536x524.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Classification_of_Sports_Lighting_Beam_Angles_by_Application-01-2048x698.webp 2048w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Classification_of_Sports_Lighting_Beam_Angles_by_Application-01-18x6.webp 18w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/10\/Classification_of_Sports_Lighting_Beam_Angles_by_Application-01-510x174.webp 510w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\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_1293408446 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-770057589\" class=\"text\">\n\t\t\n<p>Nel campo dell'illuminazione sportiva, classifichiamo gli angoli di fascio direttamente in tre categorie: stretto, medio e ampio, per poi adattarli alle rispettive applicazioni. Nella pratica, questa classificazione pu\u00f2 servire come riferimento generale.<\/p>\n\t\t\n<style>\n#text-770057589 {\n  font-size: 0.75rem;\n  line-height: 1.75;\n}\n@media (min-width:550px) {\n  #text-770057589 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"is-divider divider clearfix\" style=\"max-width:50px;\"><\/div>\n\t<div id=\"gap-1197331168\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1197331168 {\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>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":4114,"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-4097","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=\"Learn how to interpret beam angles (B10%, B50%) for outdoor floodlights and wall washers. 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