{"id":119289,"date":"2026-11-03T09:47:16","date_gmt":"2026-11-03T08:47:16","guid":{"rendered":"https:\/\/www.reerlighting.com\/?page_id=119289"},"modified":"2026-11-03T10:11:52","modified_gmt":"2026-11-03T09:11:52","slug":"lumen-candele-lux-e-luminanza","status":"publish","type":"page","link":"https:\/\/www.reerlighting.com\/it\/lumen-candele-lux-e-luminanza\/","title":{"rendered":"Lumen, Candele, Lux e Luminanza"},"content":{"rendered":"\n\n\t<section class=\"section\" id=\"section_1597142790\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1196773536\">\n\n\n\t<div id=\"col-1756582865\" class=\"col small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-224999041\" class=\"text\">\n\t\t\n\n<h2>Guida alle Grandezze Fotometriche: Lumen, Candela, Lux e Luminanza<\/h2>\n\t\t\n<style>\n#text-224999041 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-51243556\">\n\n\n\t<div id=\"col-1395284031\" class=\"col pb-0 small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p>Per tradurre un&#8217;idea in un progetto illuminotecnico reale e <strong>a<\/strong> <strong>norma<\/strong> <strong>di legge<\/strong>, \u00e8 fondamentale governare le <strong>leggi<\/strong> <strong>fisiche<\/strong> che descrivono il comportamento della luce nello spazio. Nel settore dell&#8217;illuminazione professionale, le performance di un apparecchio e il risultato sul piano di progetto vengono misurati attraverso <strong>quattro<\/strong> <strong>grandezze<\/strong> <strong>fotometriche<\/strong> <strong>fondamentali<\/strong>.<\/p>\n<p>Comprendere la relazione tra <strong>Flusso Luminoso<\/strong>, <strong>Intensit\u00e0<\/strong>, <strong>Illuminamento<\/strong> e <strong>Luminanza<\/strong> \u00e8 essenziale per la corretta lettura delle curve fotometriche e per l&#8217;utilizzo dei software di calcolo (come Dialux o Relux).<\/p>\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1597142790 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_1417319298\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-99227423\">\n\n\n\t<div id=\"col-952218520\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h2 class=\"title1 title-high\">Flusso Luminoso (Lumen &#8211; lm)<\/h2>\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-1709543342\">\n\n\n\t<div id=\"col-2025868257\" class=\"col col-block-effetti medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p data-path-to-node=\"5\">Il flusso luminoso \u00e8 la quantit\u00e0 totale di energia luminosa emessa da una sorgente in tutte le direzioni nell&#8217;unit\u00e0 di tempo, ponderata secondo la sensibilit\u00e0 dell&#8217;occhio umano. L&#8217;unit\u00e0 di misura \u00e8 il <b data-path-to-node=\"5\" data-index-in-node=\"201\">Lumen (lm)<\/b>.<\/p>\n<p data-path-to-node=\"6\">Nella lettura delle schede tecniche, \u00e8 cruciale distinguere tra due valori spesso confusi:<\/p>\n<ul data-path-to-node=\"7\">\n<li>\n<p data-path-to-node=\"7,0,0\"><b data-path-to-node=\"7,0,0\" data-index-in-node=\"0\">Flusso Nominale (o della sorgente):<\/b> I lumen emessi dal solo modulo LED nudo, misurati a una temperatura di giunzione ideale (es. <span class=\"math-inline\" data-math=\"Tj = 25^circ C\" data-index-in-node=\"129\">Tj = 25\u00b0 C<\/span>).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\"><b data-path-to-node=\"7,1,0\" data-index-in-node=\"0\">Flusso Reale (o dell&#8217;apparecchio &#8211; Output):<\/b> I lumen effettivamente in uscita dal corpo illuminante,<span class=\"\"> al netto delle perdite ottiche (lenti,<\/span><span class=\"\"> riflettori,<\/span> schermi) e termiche (condizioni di regime). Questo \u00e8 l&#8217;unico valore affidabile da utilizzare nei calcoli illuminotecnici.<\/p>\n<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-2025868257 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-1110658145\" class=\"col col-block-effetti medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_839181288\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"491\" height=\"298\" src=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/flusso.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/flusso.jpg 491w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/flusso-300x182.jpg 300w\" sizes=\"auto, (max-width: 491px) 100vw, 491px\" \/>\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_839181288 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\n<style>\n#col-1110658145 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-193410430\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<blockquote>\n<p><strong>Il dettaglio progettuale<\/strong>: Il rapporto tra il flusso reale e il flusso nominale determina l&#8217;efficienza ottica dell&#8217;apparecchio (LOR &#8211; Light Output Ratio). Un apparecchio outdoor ad alta efficienza minimizza le perdite interne, trasformando la massima quantit\u00e0 di energia elettrica in flusso luminoso utile (lm\/W).<\/p>\n<\/blockquote>\n\t<div id=\"gap-1389893931\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1389893931 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-1969391463\" class=\"text hidden\">\n\t\t\n\n<blockquote>\n<p><strong>Il dettaglio progettuale:<\/strong> Nell&#8217;illuminazione architetturale di alto livello, non conta solo il valore nominale dei Kelvin, ma la coerenza del colore tra diversi apparecchi. Questa si misura in step MacAdam (SDCM). Un apparecchio di qualit\u00e0 garantisce una deviazione inferiore a 3 step MacAdam (SDCM &lt; 3), assicurando che l&#8217;occhio umano non percepisca differenze di tonalit\u00e0 tra due sorgenti identiche.<\/p>\n<\/blockquote>\n\t\t\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\n<style>\n#col-193410430 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1417319298 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  min-height: 80px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_1583325460\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-806499753\">\n\n\n\t<div id=\"col-1826199507\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h2 class=\"title1 title-high\">Intensit\u00e0 Luminosa (Candela &#8211; cd)<\/h2>\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-1505456075\">\n\n\n\t<div id=\"col-1212792775\" class=\"col col-block-effetti medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p data-path-to-node=\"11\">Mentre il flusso luminoso considera la luce totale, l&#8217;intensit\u00e0 luminosa misura la quantit\u00e0 di luce emessa in una <b data-path-to-node=\"11\" data-index-in-node=\"114\">specifica direzione<\/b>. L&#8217;unit\u00e0 di misura \u00e8 la <b data-path-to-node=\"11\" data-index-in-node=\"158\">Candela (cd)<\/b>.<\/p>\n<p data-path-to-node=\"12\">\u00c8 la grandezza che definisce il &#8220;carattere&#8221; dell&#8217;ottica di un proiettore o di un bollard. A parit\u00e0 di lumen totali, un&#8217;ottica a fascio molto stretto (Super Spot) concentrer\u00e0 il flusso in un angolo ridotto, generando un picco di altissima intensit\u00e0 (molte candele al centro). Un&#8217;ottica diffusa (Flood) distribuir\u00e0 gli stessi lumen su un angolo pi\u00f9 ampio, con un picco di intensit\u00e0 inferiore ma una copertura maggiore.<\/p>\n<ul data-path-to-node=\"13\">\n<li>\n<p data-path-to-node=\"13,0,0\"><b data-path-to-node=\"13,0,0\" data-index-in-node=\"0\">Curva Fotometrica:<\/b> Le misurazioni dell&#8217;intensit\u00e0 in tutte le direzioni dello spazio formano il solido fotometrico dell&#8217;apparecchio, i cui dati vengono esportati nei classici file fotometrici digitali (es. formato <b data-path-to-node=\"13,0,0\" data-index-in-node=\"213\">EULUMDAT .ldt<\/b> o <b data-path-to-node=\"13,0,0\" data-index-in-node=\"229\">IES<\/b>).<\/p>\n<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-1212792775 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-1143274738\" class=\"col col-block-effetti medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1878217525\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"491\" height=\"298\" src=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/intensita.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/intensita.jpg 491w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/intensita-300x182.jpg 300w\" sizes=\"auto, (max-width: 491px) 100vw, 491px\" \/>\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_1878217525 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\n<style>\n#col-1143274738 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1583325460 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  min-height: 80px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_954948245\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-653345961\">\n\n\n\t<div id=\"col-57390634\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h2 class=\"title1 title-high\">Illuminamento (Lux &#8211; lx)<\/h2>\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-1983535631\">\n\n\n\t<div id=\"col-1922641783\" class=\"col col-block-effetti medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p data-path-to-node=\"16\">L&#8217;illuminamento indica la quantit\u00e0 di luce (flusso luminoso) che colpisce e si distribuisce su una <b data-path-to-node=\"16\" data-index-in-node=\"99\">superficie specifica<\/b>. Si misura in <b data-path-to-node=\"16\" data-index-in-node=\"134\">Lux (lx)<\/b>, dove <strong><span class=\"math-inline\" data-math=\"1 text{ lux} = 1 text{ lumen} \/ text{m}^2\" data-index-in-node=\"149\">1 lux = 1 lumen\/m<sup>2<\/sup><\/span><\/strong>.<\/p>\n<p data-path-to-node=\"17\">\u00c8 il parametro pi\u00f9 utilizzato dalle normative europee (es. <strong>CEI EN 12464-1<\/strong> per gli interni, <strong>UNI EN 13201<\/strong> per le strade, <strong>UNI EN 12464-2<\/strong> per gli esterni) per stabilire la quantit\u00e0 di luce minima richiesta per svolgere determinate attivit\u00e0 o garantire la sicurezza in uno spazio. L&#8217;illuminamento diminuisce con il quadrato della distanza dalla sorgente (legge dell&#8217;inverso del quadrato).<\/p>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-1922641783 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-200538407\" class=\"col col-block-effetti medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_253262579\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"491\" height=\"298\" src=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/illuminamento.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/illuminamento.jpg 491w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/illuminamento-300x182.jpg 300w\" sizes=\"auto, (max-width: 491px) 100vw, 491px\" \/>\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_253262579 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\n<style>\n#col-200538407 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-1148797777\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<table data-path-to-node=\"18\">\n<thead>\n<tr>\n<td><strong>Livello di Illuminamento<\/strong><\/td>\n<td><strong>Contesto normativo \/ Applicazione tipica<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"18,1,0,0\"><b data-path-to-node=\"18,1,0,0\" data-index-in-node=\"0\">5 &#8211; 20 lx<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,1,1,0\">Illuminazione stradale, percorsi pedonali notturni, aree di parcheggio.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"18,2,0,0\"><b data-path-to-node=\"18,2,0,0\" data-index-in-node=\"0\">50 &#8211; 100 lx<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,2,1,0\">Zone di circolazione pedonale, atri, magazzini generali.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"18,3,0,0\"><b data-path-to-node=\"18,3,0,0\" data-index-in-node=\"0\">300 lx<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,3,1,0\">Uffici standard (aree di transito), reception, biblioteche.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"18,4,0,0\"><b data-path-to-node=\"18,4,0,0\" data-index-in-node=\"0\">500 lx<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,4,1,0\">Piani di lavoro negli uffici, aule scolastiche, laboratori.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"18,5,0,0\"><b data-path-to-node=\"18,5,0,0\" data-index-in-node=\"0\">&gt; 1000 lx<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,5,1,0\">Lavori di altissima precisione, sale operatorie, vetrine retail.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-1148797777 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_954948245 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  min-height: 80px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_1211965075\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-455820804\">\n\n\n\t<div id=\"col-641881421\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h2 class=\"title1 title-high\">Luminanza (Candela al metro quadro &#8211; cd\/m\u00b2)<\/h2>\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-2004209391\">\n\n\n\t<div id=\"col-641701482\" class=\"col col-block-effetti medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p data-path-to-node=\"21\">Mentre l&#8217;illuminamento (Lux) calcola la luce che <i data-path-to-node=\"21\" data-index-in-node=\"49\">arriva<\/i> su una superficie, la Luminanza misura la luce che <i data-path-to-node=\"21\" data-index-in-node=\"107\">rimbalza<\/i> da quella superficie e <b data-path-to-node=\"21\" data-index-in-node=\"139\">raggiunge l&#8217;occhio dell&#8217;osservatore<\/b>. Si misura in <b data-path-to-node=\"21\" data-index-in-node=\"189\">cd\/m\u00b2<\/b>.<\/p>\n<p data-path-to-node=\"22\">La luminanza dipende strettamente dal coefficiente di riflessione dei materiali: a parit\u00e0 di Lux incidenti, un pavimento in marmo bianco avr\u00e0 una luminanza molto superiore (apparir\u00e0 pi\u00f9 luminoso) rispetto a una pavimentazione in asfalto scuro.<\/p>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-641701482 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-157354796\" class=\"col col-block-effetti medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_411936577\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"491\" height=\"298\" src=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/luminanza.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/luminanza.jpg 491w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/11\/luminanza-300x182.jpg 300w\" sizes=\"auto, (max-width: 491px) 100vw, 491px\" \/>\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_411936577 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\n<style>\n#col-157354796 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-1316336551\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<blockquote>\n<p><b data-path-to-node=\"23,0\" data-index-in-node=\"0\">L&#8217;importanza nei calcoli:<\/b> Nel lighting design urbano e stradale, la norma UNI EN 13201 richiede il calcolo della luminanza (e non solo dell&#8217;illuminamento) perch\u00e9 \u00e8 l&#8217;unica grandezza che rappresenta ci\u00f2 che l&#8217;utente vede realmente. Inoltre, la misurazione delle superfici ad altissima luminanza (come la vista diretta della sorgente LED) \u00e8 alla base del calcolo dell&#8217;abbagliamento e del comfort visivo di un&#8217;installazione.<\/p>\n<\/blockquote>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-1316336551 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1211965075 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  min-height: 80px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<div id=\"gap-1791069979\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1791069979 {\n  padding-top: 70px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":10706,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-blank.php","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-119289","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.4 - 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