{"id":2261,"date":"2026-09-08T14:23:34","date_gmt":"2026-09-08T05:23:34","guid":{"rendered":"https:\/\/steelcrucian.com\/?p=2261"},"modified":"2026-09-09T22:41:35","modified_gmt":"2026-09-09T13:41:35","slug":"inverse-square-cosine-law-lighting","status":"publish","type":"post","link":"https:\/\/steelcrucian.com\/inverse-square-cosine-law-lighting\/","title":{"rendered":"\ud83d\udca1 \ucf54\uc0ac\uc778 \ubc95\uce59\/\uc5ed\uc81c\uacf1 \ubc95\uce59"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\ud639\uc2dc <a href=\"https:\/\/steelcrucian.com\/led-light-uniformity-calculation-guide\/\">\uc870\uba85 \uade0\uc77c\ub3c4 \uacc4\uc0b0 \uac00\uc774\ub4dc<\/a>\ub098 <a href=\"https:\/\/steelcrucian.com\/led-illuminance-cov-analysis\/\">COV(\ubcc0\ub3d9\uacc4\uc218)\ub85c \uade0\uc77c\ub3c4 \ubcf4\ub294 \ubc95<\/a> \uae00\uc744 \ubcf4\uace0 \uacc4\uc0b0\uae4c\uc9c0\ub294 \ub530\ub77c \ud588\ub294\ub370, \uc815\uc791 &#8220;\uc65c \uc870\uba85 \uc911\uc2ec\uc5d0\uc11c \uba40\uc5b4\uc9c8\uc218\ub85d \uc5b4\ub450\uc6cc\uc9c0\ub294\uc9c0&#8221; \uc6d0\ub9ac\ub294 \uc560\ub9e4\ud558\uac8c \ub0a8\uc544\uc788\uc9c0 \uc54a\uc73c\uc168\ub098\uc694?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Max\/Min\uc744 \ub098\ub220\uc11c 90.9%\uac00 \ub098\uc654\ub2e4, COV\uac00 4.33%\uac00 \ub098\uc654\ub2e4 \u2014 \uc22b\uc790\ub294 \uad6c\ud588\ub294\ub370 <strong>\uadf8 \uc22b\uc790\uac00 \uc560\ucd08\uc5d0 \uc65c \uadf8\ub807\uac8c \ub098\uc624\ub294\uc9c0<\/strong>\ub294 \ub2e4\ub978 \uc774\uc57c\uae30\uc785\ub2c8\ub2e4. \uc624\ub298\uc740 \uadf8 \ub4a4\uc5d0 \uc228\uc740 \ub450 \uac00\uc9c0 \ubb3c\ub9ac \ubc95\uce59, <strong>\uc5ed\uc81c\uacf1 \ubc95\uce59(Inverse Square Law)<\/strong>\uacfc <strong>\ub7a8\ubc84\ud2b8 \ucf54\uc0ac\uc778 \ubc95\uce59(Lambert&#8217;s Cosine Law)<\/strong>\uc744 \uc815\ub9ac\ud574\ub4dc\ub9bd\ub2c8\ub2e4. \uc774 \ub450 \uac1c\ub9cc \uc774\ud574\ud558\uba74 \uade0\uc77c\ub3c4 \uc218\uce58\uac00 \uc65c \uadf8\ub807\uac8c \ub098\uc624\ub294\uc9c0, \uadf8\ub9ac\uace0 \uc5b4\ub5bb\uac8c \ud558\uba74 \uac1c\uc120\ub418\ub294\uc9c0\uac00 \ub208\uc5d0 \ubcf4\uc774\uae30 \uc2dc\uc791\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\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\/inverse-square-cosine-law-lighting\/#%F0%9F%8C%9F_1_%EC%97%AD%EC%A0%9C%EA%B3%B1_%EB%B2%95%EC%B9%99_%E2%80%94_%E2%80%9C%EA%B1%B0%EB%A6%AC%EA%B0%80_2%EB%B0%B0%EB%A9%B4_%EB%B0%9D%EA%B8%B0%EB%8A%94_14%E2%80%9D\" >\ud83c\udf1f 1. \uc5ed\uc81c\uacf1 \ubc95\uce59 \u2014 &#8220;\uac70\ub9ac\uac00 2\ubc30\uba74 \ubc1d\uae30\ub294 1\/4&#8221;<\/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\/inverse-square-cosine-law-lighting\/#%F0%9F%A7%AD_2_%EB%9E%A8%EB%B2%84%ED%8A%B8_%EC%BD%94%EC%82%AC%EC%9D%B8_%EB%B2%95%EC%B9%99_%E2%80%94_%E2%80%9C%EA%B0%81%EB%8F%84%EA%B0%80_%EA%B8%B0%EC%9A%B8%EB%A9%B4_%EB%B0%9D%EA%B8%B0%EB%8F%84_%EC%A4%84%EC%96%B4%EB%93%A0%EB%8B%A4%E2%80%9D\" >\ud83e\udded 2. \ub7a8\ubc84\ud2b8 \ucf54\uc0ac\uc778 \ubc95\uce59 \u2014 &#8220;\uac01\ub3c4\uac00 \uae30\uc6b8\uba74 \ubc1d\uae30\ub3c4 \uc904\uc5b4\ub4e0\ub2e4&#8221;<\/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\/inverse-square-cosine-law-lighting\/#%F0%9F%93%8A_3_%EB%91%90_%EB%B2%95%EC%B9%99%EC%9D%84_%ED%95%A9%EC%B9%98%EB%A9%B4_%E2%80%94_%EA%B7%A0%EC%9D%BC%EB%8F%84_%EC%A0%80%ED%95%98%EC%9D%98_%EC%8B%A4%EC%B2%B4\" >\ud83d\udcca 3. \ub450 \ubc95\uce59\uc744 \ud569\uce58\uba74 \u2014 \uade0\uc77c\ub3c4 \uc800\ud558\uc758 \uc2e4\uccb4<\/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\/inverse-square-cosine-law-lighting\/#%F0%9F%9B%A0_4_%EC%8B%A4%EB%AC%B4%EC%97%90%EC%84%9C_%EA%B7%A0%EC%9D%BC%EB%8F%84%EB%A5%BC_%EA%B0%9C%EC%84%A0%ED%95%98%EB%A0%A4%EB%A9%B4\" >\ud83d\udee0 4. \uc2e4\ubb34\uc5d0\uc11c \uade0\uc77c\ub3c4\ub97c \uac1c\uc120\ud558\ub824\uba74<\/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\/inverse-square-cosine-law-lighting\/#%F0%9F%A7%AD_5_%ED%95%B5%EC%8B%AC_%EC%9A%94%EC%95%BD\" >\ud83e\udded 5. \ud575\uc2ec \uc694\uc57d<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%8C%9F_1_%EC%97%AD%EC%A0%9C%EA%B3%B1_%EB%B2%95%EC%B9%99_%E2%80%94_%E2%80%9C%EA%B1%B0%EB%A6%AC%EA%B0%80_2%EB%B0%B0%EB%A9%B4_%EB%B0%9D%EA%B8%B0%EB%8A%94_14%E2%80%9D\"><\/span>\ud83c\udf1f 1. \uc5ed\uc81c\uacf1 \ubc95\uce59 \u2014 &#8220;\uac70\ub9ac\uac00 2\ubc30\uba74 \ubc1d\uae30\ub294 1\/4&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc810\uad11\uc6d0(Point Source)\uc5d0\uc11c \ub098\uc628 \ube5b\uc740 \uac70\ub9ac\uac00 \uba40\uc5b4\uc9c8\uc218\ub85d \ub113\uc740 \uad6c\uba74\uc801\uc5d0 \ud37c\uc9d1\ub2c8\ub2e4. \uad6c\uc758 \ud45c\uba74\uc801\uc740 \ubc18\uc9c0\ub984\uc758 \uc81c\uacf1\uc5d0 \ube44\ub840\ud558\uae30 \ub54c\ubb38\uc5d0, \uac19\uc740 \uad11\uc18d\uc774 \ub354 \ub113\uc740 \uba74\uc801\uc5d0 \ud37c\uc9c0\uba74 \ub2e8\uc704 \uba74\uc801\ub2f9 \ubc1d\uae30(\uc870\ub3c4)\ub294 \uac70\ub9ac\uc758 \uc81c\uacf1\uc5d0 \ubc18\ube44\ub840\ud574\uc11c \uc904\uc5b4\ub4ed\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udcd8 \uacf5\uc2dd<\/strong><br>E = I \/ d\u00b2<br>E: \uc870\ub3c4(lux), I: \uad11\ub3c4(candela), d: \uad11\uc6d0\uacfc \uba74 \uc0ac\uc774 \uac70\ub9ac(m)<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uac70\ub9ac\uac00 <strong>2\ubc30<\/strong> \u2192 \uc870\ub3c4\ub294 <strong>1\/4<\/strong><\/li>\n\n\n\n<li>\uac70\ub9ac\uac00 <strong>3\ubc30<\/strong> \u2192 \uc870\ub3c4\ub294 <strong>1\/9<\/strong><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"608\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram1-1024x608.png\" alt=\"\" class=\"wp-image-2267\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram1-1024x608.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram1-300x178.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram1-768x456.png 768w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram1-624x371.png 624w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram1.png 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub9bc 1. \uad11\uc6d0\uc5d0\uc11c \uba40\uc5b4\uc9c8\uc218\ub85d \uac19\uc740 \ube5b\uc774 \ub354 \ub113\uc740 \uba74\uc801\uc5d0 \ud37c\uc838 \uc870\ub3c4\uac00 \uae09\uaca9\ud788 \uc904\uc5b4\ub4ed\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ubbf8 <a href=\"https:\/\/steelcrucian.com\/optics1\/\">\uad11\uc18d\u00b7\uad11\ub3c4\u00b7\uc870\ub3c4\u00b7\ud718\ub3c4 \uac1c\ub150 \uc815\ub9ac<\/a> \uae00\uc5d0\uc11c \uc870\ub3c4(E)\uc758 \uc815\uc758\ub97c \ub2e4\ub918\ub294\ub370, \uadf8 \uc870\ub3c4 \uac12\uc774 \uac70\ub9ac\uc5d0 \ub530\ub77c \uc5bc\ub9c8\ub098 \ube60\ub974\uac8c \uc904\uc5b4\ub4dc\ub294\uc9c0\ub97c \uc124\uba85\ud558\ub294 \uac8c \ubc14\ub85c \uc774 \ubc95\uce59\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%A7%AD_2_%EB%9E%A8%EB%B2%84%ED%8A%B8_%EC%BD%94%EC%82%AC%EC%9D%B8_%EB%B2%95%EC%B9%99_%E2%80%94_%E2%80%9C%EA%B0%81%EB%8F%84%EA%B0%80_%EA%B8%B0%EC%9A%B8%EB%A9%B4_%EB%B0%9D%EA%B8%B0%EB%8F%84_%EC%A4%84%EC%96%B4%EB%93%A0%EB%8B%A4%E2%80%9D\"><\/span>\ud83e\udded 2. \ub7a8\ubc84\ud2b8 \ucf54\uc0ac\uc778 \ubc95\uce59 \u2014 &#8220;\uac01\ub3c4\uac00 \uae30\uc6b8\uba74 \ubc1d\uae30\ub3c4 \uc904\uc5b4\ub4e0\ub2e4&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5ed\uc81c\uacf1 \ubc95\uce59\uc740 \uad11\uc6d0 \ubc14\ub85c \uc544\ub798(\uc218\uc9c1 \uc785\uc0ac)\uc77c \ub54c \uc774\uc57c\uae30\uc785\ub2c8\ub2e4. \uc2e4\uc81c \uc870\uba85 \uc544\ub798 \ubc14\ub2e5\uc740 \ub300\ubd80\ubd84 \uad11\uc6d0\uc5d0\uc11c \ube44\uc2a4\ub4ec\ud55c \uac01\ub3c4\ub85c \ube5b\uc744 \ubc1b\uc2b5\ub2c8\ub2e4. \uc774\ub54c \ub4f1\uc7a5\ud558\ub294 \uac8c \ucf54\uc0ac\uc778 \ubc95\uce59\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udcd8 \uacf5\uc2dd<\/strong><br>E = (I \u00d7 cos\u03b8) \/ d\u00b2<br>\u03b8: \uad11\uc6d0\uc5d0\uc11c \uc218\uc9c1\uc120\uacfc \uc785\uc0ac \ubc29\ud5a5\uc774 \uc774\ub8e8\ub294 \uac01\ub3c4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac19\uc740 \uac70\ub9ac\ub77c\ub3c4 \uac01\ub3c4\uac00 \uae30\uc6b8\uc218\ub85d(\u03b8\uac00 \ucee4\uc9c8\uc218\ub85d) \uba74\uc774 \ubc1b\ub294 \ube5b\uc758 \uc591\uc774 \uc904\uc5b4\ub4ed\ub2c8\ub2e4. \ube5b\uc774 \ube44\uc2a4\ub4ec\ud788 \ub4e4\uc5b4\uc624\uba74 \uac19\uc740 \uad11\uc18d\uc774 \ub354 \ub113\uc740 \uba74\uc801\uc5d0 \uac78\uccd0 \ud37c\uc9c0\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ud0dc\uc591\uc774 \uc815\uc624\uc5d0 \ub728\uac70\uc6b4 \uc774\uc720, \uaca8\uc6b8 \ud587\ube5b\uc774 \uc57d\ud55c \uc774\uc720\ub3c4 \uac19\uc740 \uc6d0\ub9ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udd0d <strong>\uc2ec\ud654: LED \uc790\uccb4\ub3c4 \ucf54\uc0ac\uc778 \ubc95\uce59\uc744 \ub530\ub985\ub2c8\ub2e4<\/strong><br>\ub9ce\uc740 LED\ub294 <strong>\ub7a8\ubc84\uc2dc\uc548(Lambertian) \ubc1c\uad11 \ud328\ud134<\/strong>\uc744 \uac00\uc9c0\uace0 \uc788\uc5b4\uc11c, \uad11\uc6d0 \uc790\uccb4\uc758 \ubc1c\uad11 \uc138\uae30\ub3c4 \uac01\ub3c4\uc5d0 \ub530\ub77c I(\u03b8) = I\u2080 \u00d7 cos\u03b8 \ud615\ud0dc\ub85c \uc904\uc5b4\ub4ed\ub2c8\ub2e4. \uc989 \ubc1b\ub294 \ucabd(\uc218\uad11\uba74)\uacfc \ub0b4\ubcf4\ub0b4\ub294 \ucabd(\uad11\uc6d0) \uc591\ucabd\uc5d0\uc11c \ucf54\uc0ac\uc778 \ud6a8\uacfc\uac00 \ub3d9\uc2dc\uc5d0 \uc791\uc6a9\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"608\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram2-1024x608.png\" alt=\"\" class=\"wp-image-2268\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram2-1024x608.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram2-300x178.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram2-768x456.png 768w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram2-624x371.png 624w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram2.png 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub9bc 2. \uac19\uc740 \ud3ed(w)\uc758 \ube5b\uc774\ub77c\ub3c4 \uc785\uc0ac\uac01(\u03b8)\uc774 \ucee4\uc9c8\uc218\ub85d \ubc14\ub2e5\uc5d0 \ub354 \ub113\uac8c(L=w\/cos\u03b8) \ud37c\uc838 \uc870\ub3c4\uac00 \ub0ae\uc544\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%93%8A_3_%EB%91%90_%EB%B2%95%EC%B9%99%EC%9D%84_%ED%95%A9%EC%B9%98%EB%A9%B4_%E2%80%94_%EA%B7%A0%EC%9D%BC%EB%8F%84_%EC%A0%80%ED%95%98%EC%9D%98_%EC%8B%A4%EC%B2%B4\"><\/span>\ud83d\udcca 3. \ub450 \ubc95\uce59\uc744 \ud569\uce58\uba74 \u2014 \uade0\uc77c\ub3c4 \uc800\ud558\uc758 \uc2e4\uccb4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ucc9c\uc7a5 \ub192\uc774 1m\uc5d0 \uad11\ub3c4 100cd\uc778 LED\uac00 \uc788\ub2e4\uace0 \uac00\uc815\ud558\uace0, \ubc14\ub85c \uc544\ub798(\uc911\uc2ec)\uc5d0\uc11c \uc218\ud3c9\uc73c\ub85c \uba40\uc5b4\uc9c8 \ub54c \uc870\ub3c4\uac00 \uc5b4\ub5bb\uac8c \ubcc0\ud558\ub294\uc9c0 \uacc4\uc0b0\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"608\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram3-1024x608.png\" alt=\"\" class=\"wp-image-2269\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram3-1024x608.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram3-300x178.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram3-768x456.png 768w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram3-624x371.png 624w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/diagram3.png 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub9bc 3. \uad11\uc6d0 \ub192\uc774(h)\uc640 \uce21\uc815\uc810\uae4c\uc9c0\uc758 \uc218\ud3c9\uac70\ub9ac(x)\uc5d0 \ub530\ub77c \uac70\ub9ac(d)\uc640 \uc785\uc0ac\uac01(\u03b8)\uc774 \ud568\uaed8 \ubcc0\ud558\uba70, \uc544\ub798 \ud45c\uc758 \uc870\ub3c4(E) \uac12\uc744 \uacb0\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\uc218\ud3c9\uac70\ub9ac(x)<\/th><th>\uac70\ub9ac(d)<\/th><th>cos\u03b8<\/th><th>\uc870\ub3c4(E)<\/th><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0m (\uc911\uc2ec)<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.00m<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.000<\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>100.0 lx<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.5m<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.12m<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.894<\/td><td class=\"has-text-align-center\" data-align=\"center\">71.5 lx<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.0m<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.41m<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.707<\/td><td class=\"has-text-align-center\" data-align=\"center\">35.4 lx<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.5m<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.80m<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.555<\/td><td class=\"has-text-align-center\" data-align=\"center\">17.1 lx<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc911\uc2ec\uc5d0\uc11c \ub531 \uad11\uc6d0 \ub192\uc774\ub9cc\ud07c(1m) \uc606\uc73c\ub85c \uc774\ub3d9\ud588\uc744 \ubfd0\uc778\ub370 \uc870\ub3c4\uac00 <strong>100 \u2192 35.4 lx\ub85c 65% \uc774\uc0c1 \uac10\uc18c<\/strong>\ud569\ub2c8\ub2e4. <a href=\"https:\/\/steelcrucian.com\/led-light-uniformity-calculation-guide\/\">\uade0\uc77c\ub3c4 \uacc4\uc0b0 \uac00\uc774\ub4dc<\/a>\uc5d0\uc11c \ub2e4\ub8ec &#8220;\uae30\ubcf8 \uade0\uc77c\ub3c4 = Min\/Max \u00d7 100&#8221; \uc218\uce58\uac00 \ub0ae\uac8c \ub098\uc624\ub294 \uc774\uc720, <a href=\"https:\/\/steelcrucian.com\/led-illuminance-cov-analysis\/\">COV \ubd84\uc11d \uae00<\/a>\uc5d0\uc11c \ud45c\uc900\ud3b8\ucc28\uac00 \ucee4\uc9c0\ub294 \uc774\uc720\uac00 \ubc14\ub85c \uc774 \ubb3c\ub9ac \ud604\uc0c1 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%9B%A0_4_%EC%8B%A4%EB%AC%B4%EC%97%90%EC%84%9C_%EA%B7%A0%EC%9D%BC%EB%8F%84%EB%A5%BC_%EA%B0%9C%EC%84%A0%ED%95%98%EB%A0%A4%EB%A9%B4\"><\/span>\ud83d\udee0 4. \uc2e4\ubb34\uc5d0\uc11c \uade0\uc77c\ub3c4\ub97c \uac1c\uc120\ud558\ub824\uba74<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2705 <strong>\uad11\uc6d0 \uac04\uaca9\uc744 \uc881\ud788\uac70\ub098 \uac1c\uc218\ub97c \ub298\ub824<\/strong> \uc778\uc811 \uad11\uc6d0\uc758 \uc870\ub3c4\uac00 \uacb9\uce58\ub3c4\ub85d \uc124\uacc4<\/li>\n\n\n\n<li>\u2705 <strong>\ubc30\uad11\uac01(Beam Angle)\uc744 \ub113\ud600<\/strong> \ucf54\uc0ac\uc778 \uac10\uc1e0 \uad6c\uac04\uc744 \uc644\ub9cc\ud558\uac8c \ubd84\uc0b0<\/li>\n\n\n\n<li>\u2705 <strong>\ud655\uc0b0\ud310\/\ud655\uc0b0\uad6c\ub97c \ucd94\uac00<\/strong>\ud574 \uc810\uad11\uc6d0\uc744 \uba74\uad11\uc6d0\uc5d0 \uac00\uae5d\uac8c \ubcc0\ud658 (\uc5ed\uc81c\uacf1 \ubc95\uce59\uc758 \uc601\ud5a5\ub825 \uc644\ud654)<\/li>\n\n\n\n<li>\u2705 <strong>\uad11\uc6d0-\ud53c\uc870\uc0ac\uba74 \uac70\ub9ac(h)\ub97c \ub298\ub9ac\uba74<\/strong> \uc0c1\ub300\uc801\uc73c\ub85c \uade0\uc77c\ub3c4\ub294 \uc88b\uc544\uc9c0\uc9c0\ub9cc \uc804\uccb4 \uc870\ub3c4\ub294 \ub0ae\uc544\uc9c0\ub294 \ud2b8\ub808\uc774\ub4dc\uc624\ud504 \ubc1c\uc0dd<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%A7%AD_5_%ED%95%B5%EC%8B%AC_%EC%9A%94%EC%95%BD\"><\/span>\ud83e\udded 5. \ud575\uc2ec \uc694\uc57d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc5ed\uc81c\uacf1 \ubc95\uce59<\/strong>: \uc870\ub3c4\ub294 \uac70\ub9ac\uc758 \uc81c\uacf1\uc5d0 \ubc18\ube44\ub840 (E = I\/d\u00b2)<\/li>\n\n\n\n<li><strong>\ucf54\uc0ac\uc778 \ubc95\uce59<\/strong>: \uc870\ub3c4\ub294 \uc785\uc0ac\uac01\uc758 \ucf54\uc0ac\uc778\uc5d0 \ube44\ub840 (E = I\u00b7cos\u03b8\/d\u00b2)<\/li>\n\n\n\n<li>\uc2e4\uc81c \uc870\uba85 \uc124\uacc4\uc5d0\uc11c\ub294 \ub450 \ubc95\uce59\uc774 \ub3d9\uc2dc\uc5d0 \uc791\uc6a9\ud558\uba70, \uc774\uac8c <strong>\uade0\uc77c\ub3c4\uac00 \uc911\uc2ec\uc5d0\uc11c \uac00\uc7a5\uc790\ub9ac\ub85c \uac08\uc218\ub85d \ub5a8\uc5b4\uc9c0\ub294 \ubb3c\ub9ac\uc801 \uc6d0\uc778<\/strong>\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uade0\uc77c\ub3c4 \uc218\uce58\ub97c \uacc4\uc0b0\ud560 \uc904 \uc544\ub294 \uac83\uacfc, \uadf8 \uc218\uce58\uac00 \ub098\uc624\ub294 \uc6d0\ub9ac\ub97c \uc544\ub294 \uac83\uc740 \ub2e4\ub985\ub2c8\ub2e4. \ub2e4\uc74c\uc5d0 <a href=\"https:\/\/steelcrucian.com\/led-light-uniformity-calculation-guide\/\">\uade0\uc77c\ub3c4 \uacc4\uc0b0 \uac00\uc774\ub4dc<\/a>\ub098 <a href=\"https:\/\/steelcrucian.com\/led-illuminance-cov-analysis\/\">COV \ubd84\uc11d \uae00<\/a>\uc744 \ub2e4\uc2dc \ubcf4\uc2dc\uba74 \uc22b\uc790 \ub4a4\uc758 \uadf8\ub9bc\uc774 \ud6e8\uc52c \uc120\uba85\ud558\uac8c \ubcf4\uc774\uc2e4 \uac70\uc608\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucd5c\uc885 \uc5c5\ub370\uc774\ud2b8: 2026\ub144 9\uc6d4<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud639\uc2dc \uc870\uba85 \uade0\uc77c\ub3c4 \uacc4\uc0b0 \uac00\uc774\ub4dc\ub098 COV(\ubcc0\ub3d9\uacc4\uc218)\ub85c \uade0\uc77c\ub3c4 \ubcf4\ub294 \ubc95 \uae00\uc744 \ubcf4\uace0 \uacc4\uc0b0\uae4c\uc9c0\ub294 \ub530\ub77c \ud588\ub294\ub370, \uc815\uc791 &#8220;\uc65c \uc870\uba85 \uc911\uc2ec\uc5d0\uc11c \uba40\uc5b4\uc9c8\uc218\ub85d \uc5b4\ub450\uc6cc\uc9c0\ub294\uc9c0&#8221; \uc6d0\ub9ac\ub294 \uc560\ub9e4\ud558\uac8c \ub0a8\uc544\uc788\uc9c0 \uc54a\uc73c\uc168\ub098\uc694? Max\/Min\uc744 \ub098\ub220\uc11c 90.9%\uac00 \ub098\uc654\ub2e4, COV\uac00 4.33%\uac00 \ub098\uc654\ub2e4 \u2014 \uc22b\uc790\ub294 \uad6c\ud588\ub294\ub370 \uadf8 \uc22b\uc790\uac00 \uc560\ucd08\uc5d0 \uc65c \uadf8\ub807\uac8c \ub098\uc624\ub294\uc9c0\ub294 \ub2e4\ub978 \uc774\uc57c\uae30\uc785\ub2c8\ub2e4. \uc624\ub298\uc740 \uadf8 \ub4a4\uc5d0 \uc228\uc740 \ub450 \uac00\uc9c0 \ubb3c\ub9ac \ubc95\uce59, \uc5ed\uc81c\uacf1 \ubc95\uce59(Inverse Square Law)\uacfc \ub7a8\ubc84\ud2b8&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":[73,308,768,302,78,769],"class_list":["post-2261","post","type-post","status-publish","format-standard","hentry","category-optics","tag-73","tag-308","tag-768","tag-302","tag-78","tag-769"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2261","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=2261"}],"version-history":[{"count":5,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2261\/revisions"}],"predecessor-version":[{"id":2394,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2261\/revisions\/2394"}],"wp:attachment":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/media?parent=2261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/categories?post=2261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/tags?post=2261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}