{"id":2422,"date":"2026-09-12T00:08:36","date_gmt":"2026-09-11T15:08:36","guid":{"rendered":"https:\/\/steelcrucian.com\/?p=2422"},"modified":"2026-09-12T00:08:37","modified_gmt":"2026-09-11T15:08:37","slug":"color-rendering-index-cri-ra-guide","status":"publish","type":"post","link":"https:\/\/steelcrucian.com\/color-rendering-index-cri-ra-guide\/","title":{"rendered":"\ud83c\udfa8 \uc5f0\uc0c9\uc9c0\uc218(CRI\/Ra) \uc644\ubcbd\uc815\ub9ac \u2013 Ra 90\uc778\ub370 \uace0\uae30\uac00 \uce59\uce59\ud574 \ubcf4\uc774\ub294 \uc774\uc720"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\uc815\uc721\uc810 \uc870\uba85 \uc544\ub798\uc5d0\uc11c \uba39\uc74c\uc9c1\uc2a4\ub7ec\uc6cc \ubcf4\uc774\ub358 \uace0\uae30\uac00, \uc9d1\uc5d0 \uc640\uc11c \uaebc\ub0b4\ubcf4\ub2c8 \uce59\uce59\ud55c \ud68c\uac08\uc0c9\uc778 \uacbd\ud5d8 \uc788\uc73c\uc2e0\uac00\uc694? \ud654\uc7a5\ud488 \ub9e4\uc7a5\uc5d0\uc11c \uace0\ub978 \ub9bd\uc2a4\ud2f1 \uc0c9\uc774 \ubc16\uc5d0 \ub098\uc624\ub2c8 \uc804\ud600 \ub2e4\ub978 \uc0c9\uc774\uc5c8\ub358 \uc801\uc740\uc694?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac19\uc740 \ubb3c\uccb4\uc778\ub370 \uc870\uba85\uc774 \ubc14\ub00c\uba74 \uc0c9\uc774 \ub2ec\ub77c \ubcf4\uc785\ub2c8\ub2e4. \uc774\uac78 \uc22b\uc790\ub85c \ud45c\ud604\ud55c \uac83\uc774 <strong>\uc5f0\uc0c9\uc9c0\uc218(CRI, Color Rendering Index)<\/strong> \uc785\ub2c8\ub2e4. LED \uc2a4\ud399\ud45c\uc5d0 <code>Ra 80<\/code>, <code>CRI&gt;90<\/code> \uac19\uc740 \ud45c\uae30\ub85c \ub4f1\uc7a5\ud558\uc8e0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7f0\ub370 \uc2e4\ubb34\uc5d0\uc11c \uc774\ub7f0 \uc77c\uc774 \uc0dd\uae41\ub2c8\ub2e4. <strong>Ra 90\uc9dc\ub9ac LED\ub97c \ub2ec\uc558\ub294\ub370 \ubd89\uc740 \uacc4\uc5f4 \uc0c9\uc774 \uc5ec\uc804\ud788 \uc8fd\uc5b4 \ubcf4\uc785\ub2c8\ub2e4.<\/strong> \uc2a4\ud399\uc740 \ubd84\uba85\ud788 \uc88b\uc740\ub370 \uc65c \uadf8\ub7f4\uae4c\uc694? \uc774 \uae00\uc5d0\uc11c \uadf8 \uc774\uc720\uae4c\uc9c0 \uc815\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\ubaa9\ucc28 \ud1a0\uae00\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/steelcrucian.com\/color-rendering-index-cri-ra-guide\/#%F0%9F%94%8D_CRI%EB%8A%94_%EB%AC%B4%EC%97%87%EC%9D%84_%EC%9E%AC%EB%8A%94_%EC%88%AB%EC%9E%90%EC%9D%B8%EA%B0%80\" >\ud83d\udd0d CRI\ub294 \ubb34\uc5c7\uc744 \uc7ac\ub294 \uc22b\uc790\uc778\uac00<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/steelcrucian.com\/color-rendering-index-cri-ra-guide\/#%E2%9A%A0%EF%B8%8F_%EC%B2%AB_%EB%B2%88%EC%A7%B8_%ED%95%A8%EC%A0%95_%E2%80%94_Ra%EB%8A%94_8%EA%B0%9C%EC%9D%98_%ED%8F%89%EA%B7%A0%EC%9D%BC_%EB%BF%90%EC%9E%85%EB%8B%88%EB%8B%A4\" >\u26a0\ufe0f \uccab \ubc88\uc9f8 \ud568\uc815 \u2014 Ra\ub294 8\uac1c\uc758 \ud3c9\uade0\uc77c \ubfd0\uc785\ub2c8\ub2e4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/steelcrucian.com\/color-rendering-index-cri-ra-guide\/#%F0%9F%93%89_CRI_%EC%A7%80%ED%91%9C_%EC%9E%90%EC%B2%B4%EC%9D%98_%ED%95%9C%EA%B3%84_3%EA%B0%80%EC%A7%80\" >\ud83d\udcc9 CRI \uc9c0\ud45c \uc790\uccb4\uc758 \ud55c\uacc4 3\uac00\uc9c0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/steelcrucian.com\/color-rendering-index-cri-ra-guide\/#%E2%9A%A1_%EC%97%B0%EC%83%89%EC%84%B1%EA%B3%BC_%EA%B4%91%ED%9A%A8%EC%9C%A8%EC%9D%80_%EB%A7%9E%EB%B0%94%EA%BE%B8%EB%8A%94_%EA%B4%80%EA%B3%84\" >\u26a1 \uc5f0\uc0c9\uc131\uacfc \uad11\ud6a8\uc728\uc740 \ub9de\ubc14\uafb8\ub294 \uad00\uacc4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/steelcrucian.com\/color-rendering-index-cri-ra-guide\/#%E2%9C%85_%EC%9A%A9%EB%8F%84%EB%B3%84%EB%A1%9C_%EC%9D%B4%EB%A0%87%EA%B2%8C_%EA%B3%A0%EB%A5%B4%EC%84%B8%EC%9A%94\" >\u2705 \uc6a9\ub3c4\ubcc4\ub85c \uc774\ub807\uac8c \uace0\ub974\uc138\uc694<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/steelcrucian.com\/color-rendering-index-cri-ra-guide\/#%F0%9F%93%8C_%EC%A0%95%EB%A6%AC\" >\ud83d\udccc \uc815\ub9ac<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/steelcrucian.com\/color-rendering-index-cri-ra-guide\/#%F0%9F%93%9A_%ED%95%A8%EA%BB%98_%EC%9D%BD%EC%9C%BC%EB%A9%B4_%EC%A2%8B%EC%9D%80_%EA%B8%80\" >\ud83d\udcda \ud568\uaed8 \uc77d\uc73c\uba74 \uc88b\uc740 \uae00<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%94%8D_CRI%EB%8A%94_%EB%AC%B4%EC%97%87%EC%9D%84_%EC%9E%AC%EB%8A%94_%EC%88%AB%EC%9E%90%EC%9D%B8%EA%B0%80\"><\/span>\ud83d\udd0d CRI\ub294 \ubb34\uc5c7\uc744 \uc7ac\ub294 \uc22b\uc790\uc778\uac00<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CRI\ub294 <strong>&#8220;\uc774 \uc870\uba85\uc774 \uae30\uc900 \uad11\uc6d0\ub9cc\ud07c \uc0c9\uc744 \uc81c\ub300\ub85c \ubcf4\uc5ec\uc8fc\ub294\uac00&#8221;<\/strong> \ub97c \uc810\uc218\ud654\ud55c \uac12\uc785\ub2c8\ub2e4. \uc808\ub300\uc801\uc778 \uc0c9 \ud488\uc9c8\uc774 \uc544\ub2c8\ub77c <strong>\uae30\uc900\uacfc\uc758 \ucc28\uc774<\/strong>\ub97c \uc7ac\ub294 \uc0c1\ub300 \uc9c0\ud45c\ub77c\ub294 \uc810\uc774 \ud575\uc2ec\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uce21\uc815 \uc808\ucc28\ub294 \uc774\ub807\uac8c \uc9c4\ud589\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"569\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-measurement-principle-1024x569.png\" alt=\"\" class=\"wp-image-2423\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-measurement-principle-1024x569.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-measurement-principle-300x167.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-measurement-principle-767x426.png 767w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-measurement-principle-1536x853.png 1536w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-measurement-principle.png 1584w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\uae30\uc900 \uad11\uc6d0\uc744 \uc815\ud569\ub2c8\ub2e4.<\/strong> \uc0c9\uc628\ub3c4\uac00 5000K\ubcf4\ub2e4 \ub0ae\uc73c\uba74 \ud751\uccb4\ubcf5\uc0ac(\ubc31\uc5f4\ub4f1 \uac19\uc740 \ubd84\ud3ec), 5000K \uc774\uc0c1\uc774\uba74 CIE \uc8fc\uad11 \ubd84\ud3ec\ub97c \uc501\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc2dc\ud5d8 \uad11\uc6d0\uc744 \uac19\uc740 \uc0c9\uc628\ub3c4\ub85c \ub9de\ucda5\ub2c8\ub2e4.<\/strong> \uc0c9\uc628\ub3c4\uac00 \ub2e4\ub974\uba74 \uc560\ucd08\uc5d0 \ube44\uad50\uac00 \uc131\ub9bd\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc815\ud574\uc9c4 \uc2dc\ud5d8\uc0c9 \uc2dc\ub8cc(TCS)\uc5d0 \ub450 \uad11\uc6d0\uc744 \uac01\uac01 \ube44\ucda5\ub2c8\ub2e4.<\/strong><\/li>\n\n\n\n<li><strong>\ub450 \uacbd\uc6b0\uc758 \uc0c9\uc774 \uc5bc\ub9c8\ub098 \ub2e4\ub978\uc9c0 \uc0c9\ucc28 \u0394E\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/strong><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub9ac\uace0 \uc544\ub798 \uc2dd\uc73c\ub85c \uc810\uc218\ub97c \ub0c5\ub2c8\ub2e4.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Ri = 100 \u2212 4.6 \u00d7 \u0394Ei<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ra = R1\ubd80\ud130 R8\uae4c\uc9c0\uc758 \uc0b0\uc220\ud3c9\uade0<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\uc0c9\ucc28\uac00 0\uc774\uba74 100\uc810\uc785\ub2c8\ub2e4. \uacc4\uc218 4.6\uc740 \uc0c9\ucc28 1\ub2e8\uc704\ub2f9 \uba87 \uc810\uc744 \uae4e\uc744\uc9c0 \uc815\ud55c \ud658\uc0b0\uac12\uc774\uace0\uc694. \uc5ed\uc0b0\ud574\ubcf4\uba74 <strong>\u0394E\uac00 \uc57d 2.17\uc774\uba74 90\uc810, \uc57d 4.35\uba74 80\uc810<\/strong>\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9A%A0%EF%B8%8F_%EC%B2%AB_%EB%B2%88%EC%A7%B8_%ED%95%A8%EC%A0%95_%E2%80%94_Ra%EB%8A%94_8%EA%B0%9C%EC%9D%98_%ED%8F%89%EA%B7%A0%EC%9D%BC_%EB%BF%90%EC%9E%85%EB%8B%88%EB%8B%A4\"><\/span>\u26a0\ufe0f \uccab \ubc88\uc9f8 \ud568\uc815 \u2014 Ra\ub294 8\uac1c\uc758 \ud3c9\uade0\uc77c \ubfd0\uc785\ub2c8\ub2e4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2dc\ud5d8\uc0c9 \uc2dc\ub8cc\ub294 R1\ubd80\ud130 R14\uae4c\uc9c0 \ucd1d 14\uac1c\uc785\ub2c8\ub2e4. \uadf8\ub7f0\ub370 <strong>Ra\uc5d0 \ub4e4\uc5b4\uac00\ub294 \uac74 \uc55e\uc758 8\uac1c\ubfd0\uc785\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub354 \uc911\uc694\ud55c \uac74 \uadf8 8\uac1c\uc758 \uc131\uaca9\uc785\ub2c8\ub2e4. <strong>R1~R8\uc740 \uc804\ubd80 \ucc44\ub3c4\uac00 \ub0ae\uc740 \ud30c\uc2a4\ud154 \uacc4\uc5f4<\/strong>\uc785\ub2c8\ub2e4. \uc0b4\uad6c\uc0c9, \uc5f0\ub450\uc0c9, \ud558\ub298\uc0c9 \uac19\uc740 \uc0c9\uc774\uc8e0. \ubc18\uba74 <strong>\uc9c4\ud55c \ube68\uac15, \uc9c4\ud55c \ucd08\ub85d, \uc0ac\ub78c \ud53c\ubd80\uc0c9\uc740 R9~R14\uc5d0 \ubab0\ub824 \uc788\uace0, \uc774\uac74 Ra \uacc4\uc0b0\uc5d0\uc11c \ube60\uc9d1\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"498\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-r1-r14-comparison-1-1024x498.png\" alt=\"\" class=\"wp-image-2425\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-r1-r14-comparison-1-1024x498.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-r1-r14-comparison-1-300x146.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-r1-r14-comparison-1-767x373.png 767w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-r1-r14-comparison-1-1536x747.png 1536w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-r1-r14-comparison-1.png 1743w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc704 \uadf8\ub798\ud504\ub294 \uacc4\uc0b0 \uc608\uc2dc\uc785\ub2c8\ub2e4. \ub450 \uc81c\ud488\uc758 R1~R8 \ud3c9\uade0\uc740 \uac01\uac01 80\uacfc 95\ub85c \ubd84\uba85\ud788 \ucc28\uc774\uac00 \ub098\uc9c0\ub9cc, \uc815\uc791 \ub208\uc5d0 \ub744\ub294 \uac74 <strong>R9 \uad6c\uac04<\/strong>\uc785\ub2c8\ub2e4. \uc77c\ubc18 LED \ucabd\uc740 R9\uac00 <strong>\u22125<\/strong>\uae4c\uc9c0 \ub0b4\ub824\uac11\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ri\ub294 \uc74c\uc218\uac00 \ub098\uc62c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/strong> \uc0c9\ucc28\uac00 21.7\uc744 \ub118\uc73c\uba74 0\uc810 \uc544\ub798\ub85c \ub5a8\uc5b4\uc9c0\ub2c8\uae4c\uc694. \ubd89\uc740 \uacc4\uc5f4\uc774 \uac70\uc758 \uc7ac\ud604\ub418\uc9c0 \uc54a\ub294\ub2e4\ub294 \ub73b\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udca1 \uace0\uae30, \uacfc\uc77c, \uaf43, \ubaa9\uc7ac, \uc0ac\ub78c \ud53c\ubd80 \u2014 \ubd89\uc740 \uae30\uac00 \uc911\uc694\ud55c \ub300\uc0c1\uc740 \uc804\ubd80 R9\uac00 \uc9c0\ubc30\ud569\ub2c8\ub2e4. <strong>Ra\ub9cc \ubcf4\uace0 \uace0\ub974\uba74 \uc5ec\uae30\uc11c \uc2e4\ud328\ud569\ub2c8\ub2e4.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf9\ub2e8\uc801\uc778 \uc608\ub97c \ub4e4\uba74, R1~R8\uc774 \uc804\ubd80 90\uc778 \uc81c\ud488 \ub450 \uac1c\uac00 \uc788\uc5b4\ub3c4 \ud558\ub098\ub294 R9\uac00 88\uc774\uace0 \ub2e4\ub978 \ud558\ub098\ub294 20\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. <strong>\uc2a4\ud399\ud45c\uc0c1 Ra\ub294 \ub458 \ub2e4 90\uc73c\ub85c \ub611\uac19\uc2b5\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%93%89_CRI_%EC%A7%80%ED%91%9C_%EC%9E%90%EC%B2%B4%EC%9D%98_%ED%95%9C%EA%B3%84_3%EA%B0%80%EC%A7%80\"><\/span>\ud83d\udcc9 CRI \uc9c0\ud45c \uc790\uccb4\uc758 \ud55c\uacc4 3\uac00\uc9c0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">R9 \ubb38\uc81c \uc678\uc5d0\ub3c4 CRI\ub294 1974\ub144\uc5d0 \ub9cc\ub4e4\uc5b4\uc9c4 \uc9c0\ud45c\ub77c \uad6c\uc870\uc801\uc778 \uc57d\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2460 \uc0c9\uc628\ub3c4\uac00 \ub2e4\ub974\uba74 \ube44\uad50\uac00 \ubd88\uac00\ub2a5\ud569\ub2c8\ub2e4.<\/strong> \uae30\uc900 \uad11\uc6d0\uc774 \uc0c9\uc628\ub3c4\ub9c8\ub2e4 \ubc14\ub00c\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. 3000K \uc81c\ud488\uc758 Ra 90\uacfc 6500K \uc81c\ud488\uc758 Ra 90\uc740 <strong>\uac19\uc740 \uc2dc\ud5d8\uc744 \ud1b5\uacfc\ud55c \uc810\uc218\uac00 \uc544\ub2d9\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2461 \uc0c9\uc774 \ub354 \uc120\uba85\ud574\uc838\ub3c4 \uac10\uc810\ub429\ub2c8\ub2e4.<\/strong> CRI\ub294 \uae30\uc900\uad11\uc6d0\uacfc\uc758 &#8216;\ucc28\uc774&#8217;\ub9cc \ubd05\ub2c8\ub2e4. \ubc29\ud5a5\uc744 \uad6c\ubd84\ud558\uc9c0 \uc54a\uc544\uc11c, \uc0c9\uc774 \ub354 \ud654\uc0ac\ud558\uac8c \ubcf4\uc5ec\ub3c4 \uae30\uc900\uacfc \ub2e4\ub974\uba74 \uc810\uc218\uac00 \uae4e\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2462 \uc624\ub798\ub41c \uc0c9\uacf5\uac04\uc744 \uc501\ub2c8\ub2e4.<\/strong> CIE 1964 U*V*W*\ub294 \ud604\uc7ac \uae30\uc900\uc73c\ub85c\ub294 \uc0c9\ucc28 \ud45c\ud604\uc774 \ubd80\uc815\ud655\ud55c \ud3b8\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub7f0 \ud55c\uacc4 \ub54c\ubb38\uc5d0 \ubd81\ubbf8 \uc870\uba85\ud559\ud68c\ub294 <strong>TM-30<\/strong> \uc774\ub77c\ub294 \ub300\uccb4 \uc9c0\ud45c\ub97c \ub0b4\ub1a8\uc2b5\ub2c8\ub2e4. \uc2dc\ub8cc\ub97c 99\uc885\uc73c\ub85c \ub298\ub9ac\uace0, <strong>Rf(\ucda9\uc2e4\ub3c4)<\/strong> \uc640 <strong>Rg(\ucc44\ub3c4 \ubcc0\ud654)<\/strong> \ub97c \ubd84\ub9ac\ud574\uc11c \ubd05\ub2c8\ub2e4. Rf\ub294 &#8220;\uae30\uc900\uacfc \uc5bc\ub9c8\ub098 \uac19\uc740\uac00&#8221;, Rg\ub294 &#8220;\uc0c9\uc774 \ub354 \uc120\uba85\ud574\uc84c\ub294\uac00 \ud750\ub824\uc84c\ub294\uac00&#8221;\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\ub9cc \uad6d\ub0b4 \uc81c\ud488 \uc2a4\ud399\ud45c\uc5d0\uc11c TM-30 \uc218\uce58\ub97c \uc81c\uacf5\ud558\ub294 \uacbd\uc6b0\ub294 \uc544\uc9c1 \ub9ce\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. <strong>\ub2f9\ubd84\uac04\uc740 Ra\uc640 R9\ub97c \ud568\uaed8 \ud655\uc778\ud558\ub294 \uac8c \ud604\uc2e4\uc801\uc778 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9A%A1_%EC%97%B0%EC%83%89%EC%84%B1%EA%B3%BC_%EA%B4%91%ED%9A%A8%EC%9C%A8%EC%9D%80_%EB%A7%9E%EB%B0%94%EA%BE%B8%EB%8A%94_%EA%B4%80%EA%B3%84\"><\/span>\u26a1 \uc5f0\uc0c9\uc131\uacfc \uad11\ud6a8\uc728\uc740 \ub9de\ubc14\uafb8\ub294 \uad00\uacc4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">&#8220;\uadf8\ub7fc \ubb34\uc870\uac74 Ra 98\uc9dc\ub9ac\ub97c \uc4f0\uba74 \ub418\uc9c0 \uc54a\ub098?&#8221; \uc2f6\uc9c0\ub9cc \ub300\uac00\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"556\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-efficacy-tradeoff-1024x556.png\" alt=\"\" class=\"wp-image-2426\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-efficacy-tradeoff-1024x556.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-efficacy-tradeoff-300x163.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-efficacy-tradeoff-766x416.png 766w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/cri-efficacy-tradeoff.png 1503w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ubc31\uc0c9 LED\ub294 \ub300\uac1c \uccad\uc0c9 \uce69\uc5d0 \ud615\uad11\uccb4\ub97c \uc62c\ub824 \ub9cc\ub4ed\ub2c8\ub2e4. <strong>\uc5f0\uc0c9\uc131\uc744 \uc62c\ub9ac\ub824\uba74 \uc801\uc0c9 \uc131\ubd84\uc744 \ub354 \ub123\uc5b4\uc57c \ud558\ub294\ub370, \uc0ac\ub78c \ub208\uc740 \uc801\uc0c9\uc5d0 \uc0c1\ub300\uc801\uc73c\ub85c \ub454\uac10\ud569\ub2c8\ub2e4.<\/strong> \uac19\uc740 \uc804\ub825\uc744 \uc368\ub3c4 \ubc1d\uae30(lm)\ub85c \ud658\uc0b0\ub418\ub294 \uc591\uc774 \uc904\uc5b4\ub4ed\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc704 \uadf8\ub798\ud504\ub294 <strong>\uacbd\ud5a5\uc744 \ubcf4\uc5ec\uc8fc\ub294 \uac1c\ub150\ub3c4\uc774\uace0 \uc808\ub300 \uc218\uce58\uac00 \uc544\ub2d9\ub2c8\ub2e4.<\/strong> \uc2e4\uc81c \uac12\uc740 \uc81c\uc870\uc0ac\uc640 \ud615\uad11\uccb4 \uc870\uc131\uc5d0 \ub530\ub77c \ud06c\uac8c \ub2ec\ub77c\uc9c0\ub2c8, \uad6c\ub9e4 \uc2dc\uc5d0\ub294 \ubc18\ub4dc\uc2dc \ud574\ub2f9 \uc81c\ud488\uc758 \ub370\uc774\ud130\uc2dc\ud2b8\ub97c \ud655\uc778\ud558\uc138\uc694.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9C%85_%EC%9A%A9%EB%8F%84%EB%B3%84%EB%A1%9C_%EC%9D%B4%EB%A0%87%EA%B2%8C_%EA%B3%A0%EB%A5%B4%EC%84%B8%EC%9A%94\"><\/span>\u2705 \uc6a9\ub3c4\ubcc4\ub85c \uc774\ub807\uac8c \uace0\ub974\uc138\uc694<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\uc6a9\ub3c4<\/th><th>\uad8c\uc7a5 Ra<\/th><th>R9 \ud655\uc778<\/th><\/tr><\/thead><tbody><tr><td>\ucc3d\uace0, \uc8fc\ucc28\uc7a5, \ubcf5\ub3c4<\/td><td>70~80<\/td><td>\ubd88\ud544\uc694<\/td><\/tr><tr><td>\uc77c\ubc18 \uc0ac\ubb34\uc2e4, \uac70\uc2e4<\/td><td>80 \uc774\uc0c1<\/td><td>\uad8c\uc7a5<\/td><\/tr><tr><td>\ub9e4\uc7a5, \uc8fc\ubc29, \uc2dd\ub2f9<\/td><td>90 \uc774\uc0c1<\/td><td><strong>\ud544\uc218<\/strong><\/td><\/tr><tr><td>\ubbf8\uc6a9\uc2e4, \ucd2c\uc601, \uba54\uc774\ud06c\uc5c5<\/td><td>95 \uc774\uc0c1<\/td><td><strong>\ud544\uc218<\/strong><\/td><\/tr><tr><td>\uc0c9 \uac80\uc0ac, \uc778\uc1c4 \uad50\uc815<\/td><td>95 \uc774\uc0c1<\/td><td><strong>\ud544\uc218 (+TM-30 \ud655\uc778)<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u26a0\ufe0f \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0 <strong>R9 \uac12\uc774 \uc544\uc608 \uc5c6\ub294 \uc81c\ud488<\/strong>\uc740 \ub300\uccb4\ub85c R9\uac00 \ub0ae\uc2b5\ub2c8\ub2e4. \uc88b\uc740 \uac12\uc774\uba74 \uc81c\uc870\uc0ac\uac00 \uba3c\uc800 \ud64d\ubcf4\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc774\uac74 \uacbd\ud5d8\uc801 \ud310\ub2e8\uc774\uace0 \uc808\ub300 \ubc95\uce59\uc740 \uc544\ub2c8\ub2c8, \uc911\uc694\ud55c \uc6a9\ub3c4\ub77c\uba74 \uc81c\uc870\uc0ac\uc5d0 \uc9c1\uc811 \ubb38\uc758\ud558\ub294 \uac8c \ud655\uc2e4\ud569\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%93%8C_%EC%A0%95%EB%A6%AC\"><\/span>\ud83d\udccc \uc815\ub9ac<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CRI\ub294 <strong>\uae30\uc900 \uad11\uc6d0\uacfc\uc758 \uc0c9\ucc28<\/strong>\ub97c \uc810\uc218\ud654\ud55c \uc0c1\ub300 \uc9c0\ud45c\uc785\ub2c8\ub2e4<\/li>\n\n\n\n<li><strong>Ra = R1~R8 \ud3c9\uade0<\/strong>\uc774\uace0, \uc774 8\uac1c\ub294 \uc804\ubd80 \uc800\ucc44\ub3c4 \uc0c9\uc785\ub2c8\ub2e4<\/li>\n\n\n\n<li><strong>\uc9c4\ud55c \ube68\uac15(R9)\uc740 Ra\uc5d0\uc11c \ube60\uc9d1\ub2c8\ub2e4.<\/strong> \uc74c\uc218\uae4c\uc9c0 \ub098\uc62c \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/li>\n\n\n\n<li><strong>\uc0c9\uc628\ub3c4\uac00 \ub2e4\ub974\uba74 Ra\ub07c\ub9ac \ube44\uad50\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4<\/strong><\/li>\n\n\n\n<li>\uc5f0\uc0c9\uc131\uc744 \uc62c\ub9ac\uba74 <strong>\uad11\ud6a8\uc728\uc774 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4<\/strong><\/li>\n\n\n\n<li>\uc0c9\uc774 \uc911\uc694\ud55c \uc6a9\ub3c4\ub77c\uba74 <strong>Ra\uc640 R9\ub97c \ubc18\ub4dc\uc2dc \ud568\uaed8<\/strong> \ud655\uc778\ud558\uc138\uc694<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c\uc5d0 LED \ub370\uc774\ud130\uc2dc\ud2b8\ub97c \ubcf4\uc2e4 \uc77c\uc774 \uc788\uc73c\uba74, Ra \uc606\uc5d0 R9\uac00 \uc801\ud600 \uc788\ub294\uc9c0\ubd80\ud130 \ucc3e\uc544\ubcf4\uc138\uc694. <strong>\uadf8 \ud55c \uce78\uc774 \uc2a4\ud399\ud45c\uc5d0\uc11c \uac00\uc7a5 \ub9ce\uc740 \uc815\ubcf4\ub97c \ub2f4\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%93%9A_%ED%95%A8%EA%BB%98_%EC%9D%BD%EC%9C%BC%EB%A9%B4_%EC%A2%8B%EC%9D%80_%EA%B8%80\"><\/span>\ud83d\udcda \ud568\uaed8 \uc77d\uc73c\uba74 \uc88b\uc740 \uae00<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/steelcrucian.com\/fresnel-reflection-transmittance\/\">\ud83d\udd0d \ud504\ub808\ub12c \ubc18\uc0ac\uc640 \ud22c\uacfc\uc728 \uc644\ubcbd\uc815\ub9ac<\/a> \u2014 \uad11\ud559 \uc2dc\ub9ac\uc988 \uc9c1\uc804 \ud3b8\uc785\ub2c8\ub2e4. LED \uc55e\uc5d0 \ud655\uc0b0\ud310\uc744 \ubd99\uc774\uba74 \ube5b\uc774 \uc5bc\ub9c8\ub098 \uc190\uc2e4\ub418\ub294\uc9c0, \uc5f0\uc0c9\uc131\uacfc\ub294 \ub610 \ub2e4\ub978 \ucd95\uc758 \ud6a8\uc728 \ubb38\uc81c\ub97c \ub2e4\ub8f9\ub2c8\ub2e4.<\/li>\n\n\n\n<li><a href=\"https:\/\/steelcrucian.com\/led-light-uniformity-calculation-guide\/\">\ud83c\udfa8 \uc870\uba85 \uade0\uc77c\ub3c4 \uacc4\uc0b0 3\uac00\uc9c0 \uc644\ubcbd\uc815\ub9ac + \ubb34\ub8cc \uacc4\uc0b0\uae30<\/a> \u2014 \uc5f0\uc0c9\uc131\uc774 &#8216;\uc0c9&#8217;\uc758 \ud488\uc9c8\uc774\ub77c\uba74 \uade0\uc77c\ub3c4\ub294 &#8216;\ubc1d\uae30&#8217;\uc758 \ud488\uc9c8\uc785\ub2c8\ub2e4. \uc870\uba85 \uc2a4\ud399\uc744 \ubcfc \ub54c \ud56d\uc0c1 \uac19\uc774 \ub530\uc9c0\ub294 \ud56d\ubaa9\uc774\ub77c \ud568\uaed8 \ubcf4\uc2dc\uba74 \uc88b\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><a href=\"https:\/\/steelcrucian.com\/inverse-square-cosine-law-lighting\/\">\ud83d\udca1 \ucf54\uc0ac\uc778 \ubc95\uce59 \/ \uc5ed\uc81c\uacf1 \ubc95\uce59<\/a> \u2014 \uc870\uba85\uc774 \uac70\ub9ac\uc640 \uac01\ub3c4\uc5d0 \ub530\ub77c \uc5b4\ub5bb\uac8c \uc5b4\ub450\uc6cc\uc9c0\ub294\uc9c0 \ub2e4\ub8f9\ub2c8\ub2e4. \uc5f0\uc0c9\uc131\uc774 \uc88b\uc544\ub3c4 \uc870\ub3c4\uac00 \ubd80\uc871\ud558\uba74 \uc0c9 \ud310\ubcc4\uc774 \uc548 \ub418\ubbc0\ub85c, \uc2e4\ubb34\uc5d0\uc11c\ub294 \ub450 \uc870\uac74\uc744 \ud568\uaed8 \ubd10\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\uc815\uc721\uc810 \uc870\uba85 \uc544\ub798\uc5d0\uc11c \uba39\uc74c\uc9c1\uc2a4\ub7ec\uc6cc \ubcf4\uc774\ub358 \uace0\uae30\uac00, \uc9d1\uc5d0 \uc640\uc11c \uaebc\ub0b4\ubcf4\ub2c8 \uce59\uce59\ud55c \ud68c\uac08\uc0c9\uc778 \uacbd\ud5d8 \uc788\uc73c\uc2e0\uac00\uc694? \ud654\uc7a5\ud488 \ub9e4\uc7a5\uc5d0\uc11c \uace0\ub978 \ub9bd\uc2a4\ud2f1 \uc0c9\uc774 \ubc16\uc5d0 \ub098\uc624\ub2c8 \uc804\ud600 \ub2e4\ub978 \uc0c9\uc774\uc5c8\ub358 \uc801\uc740\uc694? \uac19\uc740 \ubb3c\uccb4\uc778\ub370 \uc870\uba85\uc774 \ubc14\ub00c\uba74 \uc0c9\uc774 \ub2ec\ub77c \ubcf4\uc785\ub2c8\ub2e4. \uc774\uac78 \uc22b\uc790\ub85c \ud45c\ud604\ud55c \uac83\uc774 \uc5f0\uc0c9\uc9c0\uc218(CRI, Color Rendering Index) \uc785\ub2c8\ub2e4. LED \uc2a4\ud399\ud45c\uc5d0 Ra 80, CRI&gt;90 \uac19\uc740 \ud45c\uae30\ub85c \ub4f1\uc7a5\ud558\uc8e0. \uadf8\ub7f0\ub370 \uc2e4\ubb34\uc5d0\uc11c \uc774\ub7f0 \uc77c\uc774 \uc0dd\uae41\ub2c8\ub2e4. Ra 90\uc9dc\ub9ac&hellip;&nbsp;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":"","jetpack_post_was_ever_published":false},"categories":[72],"tags":[808,86,807,805,809,730,799,806],"class_list":["post-2422","post","type-post","status-publish","format-standard","hentry","category-optics","tag-cri","tag-led","tag-r9","tag-ra","tag-tm-30","tag-730","tag-799","tag-806"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2422","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/comments?post=2422"}],"version-history":[{"count":1,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2422\/revisions"}],"predecessor-version":[{"id":2427,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2422\/revisions\/2427"}],"wp:attachment":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/media?parent=2422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/categories?post=2422"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/tags?post=2422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}