{"id":13309,"date":"2023-07-24T02:38:56","date_gmt":"2023-07-24T02:38:56","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=13309"},"modified":"2023-12-26T08:37:40","modified_gmt":"2023-12-26T08:37:40","slug":"what-is-lm-79","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/pt\/glossario\/o-que-e-lm-79","title":{"rendered":"O que \u00e9 o LM-79"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-what-is-lm-79\">O que \u00e9 o LM-79<\/h2><p>O LM-79 \u00e9 um m\u00e9todo de teste e dados utilizados no sector da ilumina\u00e7\u00e3o para avaliar o desempenho das lumin\u00e1rias LED. \u00c9 um m\u00e9todo aprovado estabelecido pela Illuminating Engineering Society of North America (IESNA) para as medi\u00e7\u00f5es el\u00e9ctricas e fotom\u00e9tricas da ilumina\u00e7\u00e3o de estado s\u00f3lido. O objetivo dos testes LM-79 \u00e9 fornecer medi\u00e7\u00f5es objectivas e padronizadas que permitam compara\u00e7\u00f5es e avalia\u00e7\u00f5es de produtos relativamente aos requisitos de desempenho.<\/p><p>O processo de teste do LM-79 envolve a medi\u00e7\u00e3o de v\u00e1rias caracter\u00edsticas el\u00e9ctricas, sa\u00edda de l\u00famen, distribui\u00e7\u00e3o espacial da luz e atributos de cor das lumin\u00e1rias LED. As caracter\u00edsticas el\u00e9ctricas incluem a tens\u00e3o de entrada, a corrente de entrada, a pot\u00eancia de entrada e o fator de pot\u00eancia. Estas medi\u00e7\u00f5es ajudam a avaliar a efici\u00eancia energ\u00e9tica e a qualidade da energia dos produtos de ilumina\u00e7\u00e3o LED.<\/p><div class=\"insert_inquiry_outer_wrapper\"><h3>Procura solu\u00e7\u00f5es de poupan\u00e7a de energia activadas por movimento?<\/h3><p>Contacte-nos para obter sensores de movimento PIR completos, produtos de poupan\u00e7a de energia activados por movimento, interruptores com sensor de movimento e solu\u00e7\u00f5es comerciais de Ocupa\u00e7\u00e3o\/Vazio.<\/p><div class = \"insert_inquiry_buttons\"><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email\"><div><a href = \"mailto:info@rayzeek.com\"><p>Enviar um e-mail<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email_contact\"><div><a href=\"https:\/\/www.rayzeek.com\/pt\/contacto\"><p>Formul\u00e1rio de contacto<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_chat chat_jump\"><div><a href=\"#\"><p>Conversar online<\/p><\/a><\/div><\/div><\/div><\/div><ul class=\"wp-block-list\"><li>A sa\u00edda de l\u00famen, tamb\u00e9m conhecida como fluxo luminoso, \u00e9 uma medida crucial nos testes LM-79. Ela quantifica a sa\u00edda de luz total de uma lumin\u00e1ria e \u00e9 expressa em l\u00famens (lm). Esta m\u00e9trica \u00e9 essencial para comparar o desempenho de diferentes lumin\u00e1rias LED.<\/li>\n\n<li>A distribui\u00e7\u00e3o espacial da luz \u00e9 outro aspeto avaliado nos ensaios LM-79. Avalia a forma como a luz \u00e9 distribu\u00edda no espa\u00e7o, incluindo a intensidade e a direccionalidade da luz emitida. Esta informa\u00e7\u00e3o \u00e9 valiosa para determinar a adequa\u00e7\u00e3o das lumin\u00e1rias LED a aplica\u00e7\u00f5es espec\u00edficas.<\/li>\n\n<li>Os atributos de cor, como a temperatura de cor correlacionada (CCT) e o \u00edndice de restitui\u00e7\u00e3o de cor (CRI), tamb\u00e9m s\u00e3o medidos nos testes LM-79. A CCT indica a apar\u00eancia da cor da luz, enquanto o CRI mede a capacidade da luz de reproduzir cores com precis\u00e3o. Estas medi\u00e7\u00f5es ajudam a avaliar a qualidade e o desempenho visual das lumin\u00e1rias LED.<\/li><\/ul><p>Os relat\u00f3rios LM-79 fornecem informa\u00e7\u00f5es completas sobre as lumin\u00e1rias LED testadas, incluindo a identifica\u00e7\u00e3o do laborat\u00f3rio de ensaios, a acredita\u00e7\u00e3o para os ensaios espec\u00edficos efectuados, a descri\u00e7\u00e3o do equipamento de ensaio e fotografias do produto. Estes relat\u00f3rios s\u00e3o essenciais para que os fabricantes, especificadores e utilizadores finais tomem decis\u00f5es informadas sobre o desempenho e a qualidade dos produtos de ilumina\u00e7\u00e3o LED.<\/p><div class=\"insert_portfolio_outer_wrapper\"><h3>Inspire-se nos portf\u00f3lios de sensores de movimento Rayzeek.<\/h3><p>N\u00e3o encontra o que pretende? N\u00e3o se preocupe. H\u00e1 sempre formas alternativas de resolver os seus problemas. Talvez um dos nossos portef\u00f3lios possa ajudar.<\/p><div class = \"insert_portfolio_buttons\"><div class = \"insert_portfolio_button_wrapper\"><div><a href = \"https:\/\/www.rayzeek.com\/pt\/categoria-de-produto\/sensores-de-movimento\"><p>Sensores de movimento PIR<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt\/interruptores-com-sensor-de-movimento\"><p>Interruptores com sensor de movimento<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt\/sensores-de-ocupacao-vaga\"><p>Sensores de ocupa\u00e7\u00e3o<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt\/produtos\/rz050\"><p>Sensor de movimento do ar condicionado<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt\/categoria-de-produto\/motion-sensor-light-strip\"><p>Fitas de luz com sensor de movimento<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt\/categoria-de-produto\/dc-sensor-dimmer\"><p>Sensores de movimento DC de baixa tens\u00e3o\/Dimmers<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt\/categoria-de-produto\/sensores-de-movimento-sem-fios\"><p>Kits de sensores de movimento sem fios<\/p><\/a><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>O LM-79 \u00e9 um m\u00e9todo de teste e dados utilizados no sector da ilumina\u00e7\u00e3o para avaliar o desempenho das lumin\u00e1rias LED. \u00c9 um m\u00e9todo aprovado estabelecido pela Illuminating Engineering Society of North America (IESNA) para as medi\u00e7\u00f5es el\u00e9ctricas e fotom\u00e9tricas da ilumina\u00e7\u00e3o de estado s\u00f3lido.<\/p>","protected":false},"author":4,"featured_media":12867,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"Solid-State Lighting\", \"idxall\": 0, \"keywordtitlesimi\": 0.8842683434486389, \"keywordslugsimi\": 0.8842683434486389, \"paratitlesimi\": 0.621888279914856, \"paraslugsimi\": 0.621888279914856, \"slug\": \"what-is-solid-state-lighting\", \"title\": \"What is Solid State Lighting\", \"id\": 13967}, {\"keyword\": \"power factor\", \"idxall\": 0, \"keywordtitlesimi\": 0.8813712000846863, \"keywordslugsimi\": 0.8823680877685547, \"paratitlesimi\": 0.5622747540473938, \"paraslugsimi\": 0.5500972270965576, \"slug\": \"what-is-power-factor-pf\", \"title\": \"What is Power Factor (PF)\", \"id\": 13327}, {\"keyword\": \"spatial distribution of light\", \"idxall\": 0, \"keywordtitlesimi\": 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