{"id":3237,"date":"2025-09-03T06:35:07","date_gmt":"2025-09-03T06:35:07","guid":{"rendered":"https:\/\/pergolalights.net\/?p=3237"},"modified":"2026-04-03T08:23:07","modified_gmt":"2026-04-03T08:23:07","slug":"what-are-lumens-lux-nits-and-candela","status":"publish","type":"post","link":"https:\/\/pergolalights.net\/es\/what-are-lumens-lux-nits-and-candela\/","title":{"rendered":"\u00bfQu\u00e9 son los l\u00famenes, los lux, los nits y las candelas?"},"content":{"rendered":"<div class=\"row align-center\"  id=\"row-384275650\">\n\n\t<div id=\"col-333307755\" 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-931883446\">\n\n\t<div id=\"col-1995909079\" 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-33631871\" class=\"text\">\n\t\t\n<h2><strong><b>1. <\/b><\/strong><strong>Pr\u00f3logo<\/strong><\/h2>\n\t\t\n<style>\n#text-33631871 {\n  font-size: 0.75rem;\n  color: rgb(255, 255, 255);\n}\n#text-33631871 > * {\n  color: rgb(255, 255, 255);\n}\n@media (min-width:550px) {\n  #text-33631871 {\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-1995909079 > .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-1031587920\" class=\"text\">\n\t\t\n<p>En nuestra vida cotidiana, la luz est\u00e1 siempre presente: desde las l\u00e1mparas de nuestras casas hasta las pantallas de nuestros tel\u00e9fonos m\u00f3viles, desde la luz del sol al aire libre hasta las luces de ne\u00f3n por la noche. Nos rodea de m\u00faltiples formas. Para describir las propiedades de la luz son indispensables ciertas unidades f\u00edsicas especializadas: l\u00famenes, lux, nits y candelas son cuatro de las m\u00e1s cruciales. Aunque aparentemente abstractas, estas unidades est\u00e1n intr\u00ednsecamente ligadas a nuestra percepci\u00f3n de la luz y a sus aplicaciones pr\u00e1cticas. Desde la selecci\u00f3n de bombillas con la luminosidad adecuada hasta el dise\u00f1o de efectos para pantallas, e incluso en campos especializados como la fotograf\u00eda y la luminotecnia, estas unidades desempe\u00f1an un papel indispensable.<\/p>\n<p>Sin embargo, a muchas personas estos cuatro conceptos les resultan confusos y les cuesta distinguir claramente sus respectivos significados y aplicaciones. Por lo tanto, aclarar los conceptos de estas cuatro unidades y definir las propiedades \u00f3pticas que describen es de gran importancia para que podamos comprender y utilizar mejor la luz.<\/p>\n\t\t\n<style>\n#text-1031587920 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1031587920 {\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_1896863470\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1208\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Lumen_lux_nit_candela.webp\" class=\"attachment-original size-original\" alt=\"Lumen,_lux,_nit,_candela\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Lumen_lux_nit_candela.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Lumen_lux_nit_candela-510x308.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Lumen_lux_nit_candela-662x400.webp 662w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Lumen_lux_nit_candela-1325x800.webp 1325w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Lumen_lux_nit_candela-768x464.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Lumen_lux_nit_candela-1536x928.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/Lumen_lux_nit_candela-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\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_1896863470 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-109089406\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-109089406 {\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-128794918\">\n\n\t<div id=\"col-2009945065\" class=\"col medium-11 small-12 large-11\"  >\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-891284245\" class=\"text\">\n\t\t\n<h2><strong><b>2. <\/b><\/strong><strong>Breve concepto<\/strong><\/h2>\n\t\t\n<style>\n#text-891284245 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-891284245 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-891284245 {\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-2009945065 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-611648465\">\n\n\t<div id=\"col-1352706415\" 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=\"text-3123257030\" class=\"text\">\n\t\t\n<p>1. El lumen es una unidad de medida de la luz, similar al vatio, pero su medici\u00f3n tiene en cuenta la sensibilidad del ojo humano. Al examinar las especificaciones de una fuente de luz, los l\u00famenes miden la potencia total de la fuente luminosa, independientemente de la direcci\u00f3n en la que se emita la luz.<\/p>\n<p>2. Lux designa el n\u00famero de l\u00famenes recibidos por metro cuadrado. En el lenguaje cotidiano, podr\u00edamos referirnos a ella como \u2018iluminancia\u2019, aunque en la profesi\u00f3n \u00f3ptica se denomina \u2018iluminancia\u2019. Indica la cantidad de luz que incide sobre una superficie determinada.<\/p>\n<p>3. El nit es el n\u00famero de l\u00famenes por metro cuadrado y por estereorradi\u00e1n, lo que podr\u00edamos denominar \u2018brillo\u2019 en t\u00e9rminos cotidianos, aunque en la industria se denomina \u2018luminancia\u2019. Si una iluminancia de 1 lux incide sobre una superficie difusa reflectante ideal, produce una luminancia de 1 nit.<\/p>\n<p>4. Una candela es el n\u00famero de l\u00famenes por estereorradi\u00e1n. Se utiliza para fuentes de luz puntuales, permitiendo calcular la cantidad de luz recibida por cualquier superficie iluminada, independientemente de su ubicaci\u00f3n.<\/p>\n\t\t\n<style>\n#text-3123257030 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3123257030 {\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_1465405357\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1186\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/LUMENS__CANDELAS-scaled.webp\" class=\"attachment-original size-original\" alt=\"LUMENS_&amp;_CANDELAS\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/LUMENS__CANDELAS-scaled.webp 2560w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/LUMENS__CANDELAS-scaled-510x236.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/LUMENS__CANDELAS-800x371.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/LUMENS__CANDELAS-1400x648.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/LUMENS__CANDELAS-768x356.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/LUMENS__CANDELAS-1536x711.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/LUMENS__CANDELAS-2048x948.webp 2048w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/LUMENS__CANDELAS-18x8.webp 18w\" 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_1465405357 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2044093731\" class=\"text\">\n\t\t\n<p>En otras palabras, la candela mide la intensidad luminosa a trav\u00e9s de una esfera imaginaria centrada en la fuente luminosa. Para una fuente puntual is\u00f3tropa, una candela equivale a un lumen por estereorradi\u00e1n. Una esfera completa que rodea la fuente luminosa abarca 4\u03c0 (aproximadamente 12,6) estereorradianes. Por consiguiente, una fuente de luz is\u00f3tropa que emite 12,6 l\u00famenes produce una intensidad luminosa de 1 candela. Esto no se aplica totalmente a los l\u00e1seres t\u00edpicos, pero para fuentes de luz como las l\u00e1mparas de xen\u00f3n de arco corto, constituye una aproximaci\u00f3n razonable. No obstante, la candela puede definirse para una parte de un haz divergente. Por ejemplo, si su l\u00e1ser emite 1 lumen en un rango de s\u00f3lo 0,1 estereorradianes, su intensidad luminosa ser\u00eda de 10 candelas.<\/p>\n\t\t\n<style>\n#text-2044093731 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2044093731 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1289506427\" class=\"text\">\n\t\t\n<p>El pie-velocidad es una unidad de iluminancia. La Illuminating Engineering Society of North America la define en ANSI\/IES RP-16-1996, Terminology of Lighting Engineering, como \u2018la densidad superficial del flujo luminoso que incide en un punto de una superficie\u2019.<\/p>\n\t\t\n<style>\n#text-1289506427 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1289506427 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3801085161\" class=\"text\">\n\t\t\n<p>In layman&#8217;s terms, illuminance is the amount of light reaching a point on a real or imaginary surface. (This point need not be located on a physical surface.)<\/p>\n\t\t\n<style>\n#text-3801085161 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3801085161 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-4232105296\" class=\"text\">\n\t\t\n<p>Una candela-pie equivale a un lumen por pie cuadrado (donde el lumen es la unidad de medida del flujo luminoso o cantidad de luz).<\/p>\n\t\t\n<style>\n#text-4232105296 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-4232105296 {\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_126839594\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1120\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/conforming_to_the_inverse_square_law_for_point_light_sources.webp\" class=\"attachment-original size-original\" alt=\"conforming_to_the_inverse_square_law_for_point_light_sources\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/conforming_to_the_inverse_square_law_for_point_light_sources.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/conforming_to_the_inverse_square_law_for_point_light_sources-510x286.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/conforming_to_the_inverse_square_law_for_point_light_sources-714x400.webp 714w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/conforming_to_the_inverse_square_law_for_point_light_sources-1400x784.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/conforming_to_the_inverse_square_law_for_point_light_sources-768x430.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/conforming_to_the_inverse_square_law_for_point_light_sources-1536x860.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/conforming_to_the_inverse_square_law_for_point_light_sources-18x10.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\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_126839594 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2300039422\" class=\"text\">\n\t\t\n<p>The luminous intensity of a candle flame (or equivalently, its candela) is approximately 1 candela. If you place the candle one foot away from a surface, the illuminance on that surface at this distance will be approximately one\u00a0foot-candle due to the candle&#8217;s illumination. At 2 feet, the illuminance would be 1\/4 foot-candle; at 3 feet, it would be 1\/9 foot-candle, and so on, conforming to the inverse square law for point light sources.<\/p>\n\t\t\n<style>\n#text-2300039422 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2300039422 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1100538109\" class=\"text\">\n\t\t\n<p>La luminosidad es un fen\u00f3meno psicof\u00edsico que no puede medirse directamente. El t\u00e9rmino \u201cbrillo fotom\u00e9trico\u201d se utilizaba antiguamente para designar la luminancia, pero ya no se emplea en contextos cient\u00edficos o de ingenier\u00eda.<\/p>\n\t\t\n<style>\n#text-1100538109 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1100538109 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-1283133849\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1283133849 {\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-1230190740\">\n\n\t<div id=\"col-1727281890\" class=\"col medium-11 small-12 large-11\"  >\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-1209387323\" class=\"text\">\n\t\t\n<h2><strong><b>3. <\/b><\/strong><strong>Definici\u00f3n espec\u00edfica<\/strong><\/h2>\n\t\t\n<style>\n#text-1209387323 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-1209387323 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-1209387323 {\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-1727281890 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-411999685\" 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=\"text-874607984\" class=\"text\">\n\t\t\n<p><strong><b>Definici\u00f3n del lumen<\/b><\/strong>: Flujo luminoso de luz monocrom\u00e1tica a una frecuencia de 540 terahercios (o una longitud de onda de aproximadamente 555,5 nan\u00f3metros) con una potencia de 1\/683 vatios. Cabe se\u00f1alar que el lumen es una unidad derivada basada en la candela (1 candela equivale a 1 lumen por estereorradi\u00e1n), mientras que la candela es una unidad de base (representa la \u2018potencia candela del haz\u2019 de 1\/683 vatios por estereorradi\u00e1n para la luz monocrom\u00e1tica a una frecuencia de 540 terahercios). Para la luz con longitudes de onda distintas de 555,5 nan\u00f3metros, el n\u00famero de l\u00famenes por vatio de energ\u00eda radiada es diferente. Para las longitudes de onda distintas de 555,5 nan\u00f3metros, los l\u00famenes por vatio corresponden a 683 multiplicado por el valor de la funci\u00f3n de eficiencia luminosa fot\u00f3pica para esa longitud de onda, dividido a continuaci\u00f3n por el valor de la funci\u00f3n de eficiencia luminosa fot\u00f3pica a 555,5 nan\u00f3metros (creo que este valor es muy pr\u00f3ximo a 1, pero no exactamente 1).<\/p>\n\t\t\n<style>\n#text-874607984 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-874607984 {\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_1671654692\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:-60px 0px -40px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/assets_task_01k47ay5kve6ra2x5dctv9m6xd_1756888038_img_1.webp\" class=\"attachment-original size-original\" alt=\"lumen and candela\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/assets_task_01k47ay5kve6ra2x5dctv9m6xd_1756888038_img_1.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/assets_task_01k47ay5kve6ra2x5dctv9m6xd_1756888038_img_1-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/assets_task_01k47ay5kve6ra2x5dctv9m6xd_1756888038_img_1-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/assets_task_01k47ay5kve6ra2x5dctv9m6xd_1756888038_img_1-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/assets_task_01k47ay5kve6ra2x5dctv9m6xd_1756888038_img_1-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/assets_task_01k47ay5kve6ra2x5dctv9m6xd_1756888038_img_1-18x12.webp 18w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/>\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_1671654692 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1550528522\" class=\"text\">\n\t\t\n<p><strong><b>L\u00famenes<\/b><\/strong>\u00a0por vatio sirve como indicador de la eficacia en la conversi\u00f3n de energ\u00eda el\u00e9ctrica en energ\u00eda luminosa. Multiplicando este valor por la potencia consumida por un LED se obtiene su flujo luminoso (en l\u00famenes). Los LED rojos, naranjas, amarillos o amarillo-verdosos t\u00edpicos presentan una ca\u00edda de tensi\u00f3n de aproximadamente 2 voltios y consumen alrededor de 0,04 vatios con una corriente est\u00e1ndar de 20 miliamperios. En cambio, los LED azules, blancos o verde no amarillentos suelen tener una ca\u00edda de tensi\u00f3n de 3,5 voltios a 20 miliamperios, lo que se traduce en un consumo de 0,07 vatios.<\/p>\n\t\t\n<style>\n#text-1550528522 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1550528522 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-411999685 > .col-inner {\n  margin: 0px 0px -25px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-514534479\">\n\n\t<div id=\"col-375628760\" 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=\"text-185800955\" class=\"text\">\n\t\t\n<p>La candela es el n\u00famero de l\u00famenes por estereorradi\u00e1n, tambi\u00e9n conocido como \u2018potencia luminosa\u2019. (En la pr\u00e1ctica, como ya se ha indicado, la candela es la unidad m\u00e9trica fundamental, mientras que el lumen se define en t\u00e9rminos de candela). Por consiguiente, el lumen es igual a la candela multiplicada por el \u00e1ngulo s\u00f3lido cubierto por el haz. Idealmente, la candela es igual al lumen dividido por el \u00e1ngulo s\u00f3lido cubierto por el haz, suponiendo que toda la luz est\u00e9 contenida en el haz y que la \u2018potencia de candela\u2019 dentro del haz sea constante.<\/p>\n\t\t\n<style>\n#text-185800955 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-185800955 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2531937625\" class=\"text\">\n\t\t\n<p>You might well ask, what is sphericity? Sphericity is 1\/(4\u03c0) of the entire sphere, or 1\/(2\u03c0) of a hemisphere, equating to approximately 3283 \u2018square degrees\u2019. The formula for calculating sphericity based on beam angle is as follows: Sphericity = 2 \u00d7 \u03c0 \u00d7 (1 &#8211; cos(0.5 \u00d7 beam angle))<\/p>\n\t\t\n<style>\n#text-2531937625 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2531937625 {\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_827032302\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"991\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/formula_for_calculating_sphericity_based_on_beam_angle.webp\" class=\"attachment-original size-original\" alt=\"formula_for_calculating_sphericity_based_on_beam_angle\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/formula_for_calculating_sphericity_based_on_beam_angle.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/formula_for_calculating_sphericity_based_on_beam_angle-510x253.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/formula_for_calculating_sphericity_based_on_beam_angle-800x396.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/formula_for_calculating_sphericity_based_on_beam_angle-1400x694.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/formula_for_calculating_sphericity_based_on_beam_angle-768x381.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/formula_for_calculating_sphericity_based_on_beam_angle-1536x761.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/09\/formula_for_calculating_sphericity_based_on_beam_angle-18x9.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\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_827032302 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3525403204\" class=\"text\">\n\t\t\n<p>Por tanto, si se calcula el \u00e1ngulo esf\u00e9rico cubierto por el haz y se multiplica por el valor de candela (o 1\/1000 del valor de milicandela), se puede obtener aproximadamente el flujo luminoso (en l\u00famenes). Sin embargo, como el haz no est\u00e1 distribuido uniformemente y no toda la luz est\u00e1 contenida en el haz, este c\u00e1lculo es s\u00f3lo aproximado. Calcular los l\u00famenes en funci\u00f3n del \u00e1ngulo del haz y de la candela puede dar lugar f\u00e1cilmente a errores que oscilan entre +100% y -50%. Para \u00e1ngulos de haz de 8 grados o menos, la salida real de l\u00famenes suele ser superior a la que predice esta f\u00f3rmula, ya que el haz nominal no tiene en cuenta los haces secundarios \u2018halo\u2019 que a menudo rodean al haz principal. Tambi\u00e9n hay que tener en cuenta que algunos valores de \u00e1ngulo del haz son excesivamente optimistas, lo que puede dar lugar a expectativas infladas con respecto al flujo luminoso real recibido.<\/p>\n\t\t\n<style>\n#text-3525403204 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3525403204 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-717306970\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-717306970 {\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-1176152218\">\n\n\t<div id=\"col-1988494473\" class=\"col medium-11 small-12 large-11\"  >\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-1491636229\" class=\"text\">\n\t\t\n<h2><strong><b>4. <\/b><\/strong><b><\/b><strong>Resumen<\/strong><\/h2>\n\t\t\n<style>\n#text-1491636229 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-1491636229 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-1491636229 {\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-1988494473 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-1663414519\">\n\n\t<div id=\"col-1541608572\" 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=\"text-911241104\" class=\"text\">\n\t\t\n<p>En resumen, las cuatro unidades \u00f3pticas -lumen, lux, nit y candela- describen las propiedades de la luz desde distintos puntos de vista y, en conjunto, constituyen los criterios esenciales para comprender y medir la iluminaci\u00f3n.<\/p>\n<p>Lumens focus on the total amount of light emitted by a light source, quantifying luminous flux to indicate how much light a source can produce; lux, however, concerns the luminous flux received per unit area by an illuminated object, reflecting the degree to which an object is lit and revealing how brightly a surface is illuminated. The nit, as a unit of luminance, applies to area sources by combining luminous intensity with the emitting area. It is commonly used to describe the visual brightness of luminous surfaces such as displays. The candela, meanwhile, is the core metric for the luminous intensity of point sources. It characterises a light source&#8217;s ability to concentrate light in a specific direction, revealing how intensely the source itself emits light.<\/p>\n\t\t\n<style>\n#text-911241104 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-911241104 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-891834469\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-891834469 {\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":3245,"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-3237","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=\"Confused by lumens, lux, nits, and candela? 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