{"id":2485,"date":"2026-09-14T12:14:30","date_gmt":"2026-09-14T03:14:30","guid":{"rendered":"https:\/\/steelcrucian.com\/?p=2485"},"modified":"2026-09-14T12:17:50","modified_gmt":"2026-09-14T03:17:50","slug":"lux-luminance-converter","status":"publish","type":"post","link":"https:\/\/steelcrucian.com\/lux-luminance-converter\/","title":{"rendered":"\ud83d\udd04 \uc870\ub3c4 \u2194 \ud718\ub3c4 \ubcc0\ud658 \uacc4\uc0b0\uae30 \u2013 500lx \ucc45\uc0c1\uc758 \ud718\ub3c4\ub294 \uba87 cd\/m\u00b2\uc77c\uae4c? (\ubb34\ub8cc \ub3c4\uad6c)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\uc870\ub3c4\uacc4\ub85c \ucc45\uc0c1\uc744 \uc7ac\ub2c8 500lx\uac00 \ub098\uc654\uc2b5\ub2c8\ub2e4. \uadf8\ub7f0\ub370 \uaddc\uaca9\uc11c\uc5d0\ub294 &#8220;\ud718\ub3c4 80cd\/m\u00b2 \uc774\uc0c1&#8221;\uc774\ub77c\uace0 \uc801\ud600 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ub458\uc740 \ube44\uad50\ud560 \uc218 \uc788\uc744\uae4c\uc694?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc870\uac74\ub9cc \ub9de\uc73c\uba74 <strong>\uacf5\uc2dd \ud558\ub098\ub85c \ubcc0\ud658\ub429\ub2c8\ub2e4.<\/strong> \uc774 \uae00\uc5d0\uc11c \uc6d0\ub9ac\ub97c \uc124\uba85\ud558\uace0, \ubc14\ub85c \uc4f8 \uc218 \uc788\ub294 \uacc4\uc0b0\uae30\ub97c \ud568\uaed8 \ub4dc\ub9bd\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 \uc870\ub3c4(lx)\uc640 \ud718\ub3c4(cd\/m\u00b2)\uac00 \uc560\ucd08\uc5d0 \ubb34\uc5c7\uc744 \uc7ac\ub294 \uac12\uc778\uc9c0 \ud5f7\uac08\ub9ac\uc2e0\ub2e4\uba74 \uc801\ubd84\uad6c\uc640 \uc870\ub3c4\uacc4\u00b7\ud718\ub3c4\uacc4\uc758 \ucc28\uc774 \uae00\uc744 \uba3c\uc800 \ubcf4\uc2dc\uba74 \uc774\ud574\uac00 \ube60\ub985\ub2c8\ub2e4.<\/p>\n<\/blockquote>\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\/lux-luminance-converter\/#%F0%9F%94%84_%EC%A1%B0%EB%8F%84_%E2%86%94_%ED%9C%98%EB%8F%84_%EB%B3%80%ED%99%98_%EA%B3%84%EC%82%B0%EA%B8%B0\" >\ud83d\udd04 \uc870\ub3c4 \u2194 \ud718\ub3c4 \ubcc0\ud658 \uacc4\uc0b0\uae30<\/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\/lux-luminance-converter\/#%F0%9F%93%90_%EB%B3%80%ED%99%98_%EA%B3%B5%EC%8B%9D%EA%B3%BC_%EC%9B%90%EB%A6%AC\" >\ud83d\udcd0 \ubcc0\ud658 \uacf5\uc2dd\uacfc \uc6d0\ub9ac<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/steelcrucian.com\/lux-luminance-converter\/#%F0%9F%A4%94_%EC%99%9C_%ED%95%98%ED%95%84_%CF%80%EC%9D%BC%EA%B9%8C\" >\ud83e\udd14 \uc65c \ud558\ud544 \u03c0\uc77c\uae4c?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/steelcrucian.com\/lux-luminance-converter\/#%F0%9F%94%81_%EC%97%AD%EB%B0%A9%ED%96%A5_%EA%B3%B5%EC%8B%9D\" >\ud83d\udd01 \uc5ed\ubc29\ud5a5 \uacf5\uc2dd<\/a><\/li><\/ul><\/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\/lux-luminance-converter\/#%F0%9F%93%8A_%EB%B0%98%EC%82%AC%EC%9C%A8_%EC%B0%B8%EA%B3%A0%EA%B0%92\" >\ud83d\udcca \ubc18\uc0ac\uc728 \ucc38\uace0\uac12<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/steelcrucian.com\/lux-luminance-converter\/#%E2%9A%A0%EF%B8%8F_%EB%B0%98%EC%82%AC%EC%9C%A8%EC%9D%80_%EC%8B%9C%EA%B0%84%EC%9D%B4_%EC%A7%80%EB%82%98%EB%A9%B4_%EB%B3%80%ED%95%A9%EB%8B%88%EB%8B%A4\" >\u26a0\ufe0f \ubc18\uc0ac\uc728\uc740 \uc2dc\uac04\uc774 \uc9c0\ub098\uba74 \ubcc0\ud569\ub2c8\ub2e4<\/a><\/li><\/ul><\/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\/lux-luminance-converter\/#%F0%9F%92%A1_%EA%B0%99%EC%9D%80_%EC%A1%B0%EB%8F%84_%EB%8B%A4%EB%A5%B8_%ED%9C%98%EB%8F%84\" >\ud83d\udca1 \uac19\uc740 \uc870\ub3c4, \ub2e4\ub978 \ud718\ub3c4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/steelcrucian.com\/lux-luminance-converter\/#%F0%9F%9B%A0%EF%B8%8F_%EC%8B%A4%EB%AC%B4_%ED%99%9C%EC%9A%A9_3%EA%B0%80%EC%A7%80\" >\ud83d\udee0\ufe0f \uc2e4\ubb34 \ud65c\uc6a9 3\uac00\uc9c0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/steelcrucian.com\/lux-luminance-converter\/#%E2%9D%8C_%EC%9D%B4%EB%9F%B4_%EB%95%8C%EB%8A%94_%EC%93%B0%EB%A9%B4_%EC%95%88_%EB%90%A9%EB%8B%88%EB%8B%A4\" >\u274c \uc774\ub7f4 \ub54c\ub294 \uc4f0\uba74 \uc548 \ub429\ub2c8\ub2e4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/steelcrucian.com\/lux-luminance-converter\/#%E2%9D%93_%EC%9E%90%EC%A3%BC_%ED%95%98%EB%8A%94_%EC%98%A4%ED%95%B4_3%EA%B0%80%EC%A7%80\" >\u2753 \uc790\uc8fc \ud558\ub294 \uc624\ud574 3\uac00\uc9c0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/steelcrucian.com\/lux-luminance-converter\/#%E2%9C%85_%ED%95%9C%EB%88%88%EC%97%90_%EC%A0%95%EB%A6%AC\" >\u2705 \ud55c\ub208\uc5d0 \uc815\ub9ac<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/steelcrucian.com\/lux-luminance-converter\/#%F0%9F%8E%AF_%EC%98%A4%EB%8A%98_%EB%B0%94%EB%A1%9C_%ED%95%B4%EB%B3%BC_%EA%B2%83\" >\ud83c\udfaf \uc624\ub298 \ubc14\ub85c \ud574\ubcfc \uac83<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/steelcrucian.com\/lux-luminance-converter\/#%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%84_%EC%A1%B0%EB%8F%84_%E2%86%94_%ED%9C%98%EB%8F%84_%EB%B3%80%ED%99%98_%EA%B3%84%EC%82%B0%EA%B8%B0\"><\/span>\ud83d\udd04 \uc870\ub3c4 \u2194 \ud718\ub3c4 \ubcc0\ud658 \uacc4\uc0b0\uae30<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<style>\n#scLuxCalc button{-webkit-appearance:none;appearance:none;letter-spacing:normal;text-transform:none;min-height:0;width:auto;}\n#scLuxCalc button:hover{filter:brightness(0.97);}\n#scLuxCalc input{background:#fff;color:#1f2937;}\n<\/style>\n<div id=\"scLuxCalc\" style=\"max-width:720px;margin:24px auto;padding:22px;border:1px solid #d8dee6;border-radius:12px;background:#fbfcfe;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Noto Sans KR',sans-serif;color:#1f2937;box-sizing:border-box;\">\n<div style=\"font-size:19px;font-weight:700;margin-bottom:4px;\">\ud83d\udd04 \uc870\ub3c4 \u2194 \ud718\ub3c4 \ubcc0\ud658 \uacc4\uc0b0\uae30<\/div>\n<div style=\"font-size:13px;color:#6b7280;margin-bottom:18px;\">\uc644\uc804\ud655\uc0b0\uba74(\ub7a8\ubc84\uc2dc\uc548) \uac00\uc815 \u00b7 L = E \u00d7 \u03c1 \u00f7 \u03c0<\/div>\n\n<div style=\"display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap;\">\n<button type=\"button\" data-scmode=\"1\" style=\"flex:1;min-width:150px;padding:11px 8px;border:1px solid #2563eb;border-radius:8px;background:#2563eb;color:#fff;line-height:1.4;text-shadow:none;box-shadow:none;font-size:14px;font-weight:700;cursor:pointer;\">\uc870\ub3c4 \u2192 \ud718\ub3c4<\/button>\n<button type=\"button\" data-scmode=\"2\" style=\"flex:1;min-width:150px;padding:11px 8px;border:1px solid #c9d3e0;border-radius:8px;background:#fff;color:#374151;line-height:1.4;text-shadow:none;box-shadow:none;font-size:14px;font-weight:700;cursor:pointer;\">\ud718\ub3c4 \u2192 \uc870\ub3c4<\/button>\n<button type=\"button\" data-scmode=\"3\" style=\"flex:1;min-width:150px;padding:11px 8px;border:1px solid #c9d3e0;border-radius:8px;background:#fff;color:#374151;line-height:1.4;text-shadow:none;box-shadow:none;font-size:14px;font-weight:700;cursor:pointer;\">\ubc18\uc0ac\uc728 \uad6c\ud558\uae30<\/button>\n<\/div>\n\n<div id=\"scRowE\" style=\"margin-bottom:14px;\">\n<label for=\"scE\" style=\"display:block;font-size:14px;font-weight:600;margin-bottom:6px;\">\uc870\ub3c4 E (lx)<\/label>\n<input id=\"scE\" type=\"number\" value=\"500\" min=\"0\" step=\"any\" style=\"width:100%;padding:11px;border:1px solid #c9d3e0;border-radius:8px;font-size:16px;box-sizing:border-box;\">\n<\/div>\n\n<div id=\"scRowL\" style=\"margin-bottom:14px;display:none;\">\n<label for=\"scL\" style=\"display:block;font-size:14px;font-weight:600;margin-bottom:6px;\">\ud718\ub3c4 L (cd\/m\u00b2)<\/label>\n<input id=\"scL\" type=\"number\" value=\"80\" min=\"0\" step=\"any\" style=\"width:100%;padding:11px;border:1px solid #c9d3e0;border-radius:8px;font-size:16px;box-sizing:border-box;\">\n<\/div>\n\n<div id=\"scRowR\" style=\"margin-bottom:14px;\">\n<label for=\"scR\" style=\"display:block;font-size:14px;font-weight:600;margin-bottom:6px;\">\ubc18\uc0ac\uc728 \u03c1 (0 ~ 1)<\/label>\n<input id=\"scR\" type=\"number\" value=\"0.5\" min=\"0\" max=\"1\" step=\"0.01\" style=\"width:100%;padding:11px;border:1px solid #c9d3e0;border-radius:8px;font-size:16px;box-sizing:border-box;\">\n<div style=\"margin-top:9px;display:flex;gap:6px;flex-wrap:wrap;\">\n<button type=\"button\" data-scrho=\"0.85\" style=\"padding:6px 11px;border:1px solid #c9d3e0;border-radius:999px;background:#fff;color:#374151;font-size:12.5px;line-height:1.4;font-weight:500;cursor:pointer;text-shadow:none;box-shadow:none;\">\ud770 \uc885\uc774 0.85<\/button>\n<button type=\"button\" data-scrho=\"0.8\" style=\"padding:6px 11px;border:1px solid #c9d3e0;border-radius:999px;background:#fff;color:#374151;font-size:12.5px;line-height:1.4;font-weight:500;cursor:pointer;text-shadow:none;box-shadow:none;\">\ucc9c\uc7a5 0.80<\/button>\n<button type=\"button\" data-scrho=\"0.5\" style=\"padding:6px 11px;border:1px solid #c9d3e0;border-radius:999px;background:#fff;color:#374151;font-size:12.5px;line-height:1.4;font-weight:500;cursor:pointer;text-shadow:none;box-shadow:none;\">\ubcbd 0.50<\/button>\n<button type=\"button\" data-scrho=\"0.45\" style=\"padding:6px 11px;border:1px solid #c9d3e0;border-radius:999px;background:#fff;color:#374151;font-size:12.5px;line-height:1.4;font-weight:500;cursor:pointer;text-shadow:none;box-shadow:none;\">\ubaa9\uc7ac 0.45<\/button>\n<button type=\"button\" data-scrho=\"0.3\" style=\"padding:6px 11px;border:1px solid #c9d3e0;border-radius:999px;background:#fff;color:#374151;font-size:12.5px;line-height:1.4;font-weight:500;cursor:pointer;text-shadow:none;box-shadow:none;\">\ucf58\ud06c\ub9ac\ud2b8 0.30<\/button>\n<button type=\"button\" data-scrho=\"0.2\" style=\"padding:6px 11px;border:1px solid #c9d3e0;border-radius:999px;background:#fff;color:#374151;font-size:12.5px;line-height:1.4;font-weight:500;cursor:pointer;text-shadow:none;box-shadow:none;\">\ubc14\ub2e5 0.20<\/button>\n<\/div>\n<\/div>\n\n<div id=\"scOut\" style=\"margin-top:18px;padding:17px;border-radius:10px;background:#eef4ff;border:1px solid #bfd4f8;\">\n<div id=\"scOutLabel\" style=\"font-size:13px;color:#4b5563;margin-bottom:5px;\">\ud718\ub3c4 L<\/div>\n<div id=\"scOutValue\" style=\"font-size:29px;font-weight:800;color:#1d4ed8;line-height:1.2;\">79.58 cd\/m\u00b2<\/div>\n<div id=\"scOutFormula\" style=\"font-size:13px;color:#4b5563;margin-top:9px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;\"><\/div>\n<\/div>\n\n<div id=\"scNote\" style=\"margin-top:13px;font-size:12.5px;color:#6b7280;line-height:1.65;\">\n\u203b \uc644\uc804\ud655\uc0b0\uba74(\ub7a8\ubc84\uc2dc\uc548 \ubc18\uc0ac\uba74) \uae30\uc900\uc785\ub2c8\ub2e4. \uad11\ud0dd\uba74, \uae08\uc18d\uba74, \uc790\ubc1c\uad11 \ud654\uba74\uc5d0\ub294 \uc801\uc6a9\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.\n<\/div>\n<\/div>\n\n<script>\n(function(){\n  var root = document.getElementById('scLuxCalc');\n  if (!root || root.dataset.scInit) { return; }\n  root.dataset.scInit = '1';\n\n  var PI = Math.PI;\n  var mode = 1;\n  var elE = root.querySelector('#scE');\n  var elL = root.querySelector('#scL');\n  var elR = root.querySelector('#scR');\n  var rowE = root.querySelector('#scRowE');\n  var rowL = root.querySelector('#scRowL');\n  var rowR = root.querySelector('#scRowR');\n  var outLabel = root.querySelector('#scOutLabel');\n  var outValue = root.querySelector('#scOutValue');\n  var outFormula = root.querySelector('#scOutFormula');\n  var modeBtns = root.querySelectorAll('[data-scmode]');\n  var rhoBtns = root.querySelectorAll('[data-scrho]');\n\n  function fmt(x){\n    if (!isFinite(x)) { return '\u2014'; }\n    if (x >= 1000) { return x.toFixed(0); }\n    if (x >= 100) { return x.toFixed(1); }\n    return x.toFixed(2);\n  }\n\n  function paintModes(){\n    for (var i = 0; i < modeBtns.length; i++) {\n      var on = (parseInt(modeBtns[i].getAttribute('data-scmode'), 10) === mode);\n      modeBtns[i].style.background = on ? '#2563eb' : '#fff';\n      modeBtns[i].style.color = on ? '#fff' : '#374151';\n      modeBtns[i].style.borderColor = on ? '#2563eb' : '#c9d3e0';\n    }\n    rowE.style.display = (mode === 2) ? 'none' : 'block';\n    rowL.style.display = (mode === 1) ? 'none' : 'block';\n    rowR.style.display = (mode === 3) ? 'none' : 'block';\n  }\n\n  function calc(){\n    var E = parseFloat(elE.value);\n    var L = parseFloat(elL.value);\n    var R = parseFloat(elR.value);\n    var v, label, f;\n\n    if (mode === 1) {\n      if (!(E >= 0) || !(R >= 0)) { outValue.textContent = '\uac12\uc744 \uc785\ub825\ud558\uc138\uc694'; outFormula.textContent = ''; return; }\n      v = E * R \/ PI;\n      label = '\ud718\ub3c4 L';\n      outValue.textContent = fmt(v) + ' cd\/m\u00b2';\n      f = 'L = ' + E + ' \u00d7 ' + R + ' \u00f7 \u03c0 = ' + fmt(v);\n    } else if (mode === 2) {\n      if (!(L >= 0) || !(R > 0)) { outValue.textContent = '\ubc18\uc0ac\uc728\uc740 0\ubcf4\ub2e4 \ucee4\uc57c \ud569\ub2c8\ub2e4'; outFormula.textContent = ''; return; }\n      v = L * PI \/ R;\n      label = '\uc870\ub3c4 E';\n      outValue.textContent = fmt(v) + ' lx';\n      f = 'E = ' + L + ' \u00d7 \u03c0 \u00f7 ' + R + ' = ' + fmt(v);\n    } else {\n      if (!(E > 0) || !(L >= 0)) { outValue.textContent = '\uc870\ub3c4\ub294 0\ubcf4\ub2e4 \ucee4\uc57c \ud569\ub2c8\ub2e4'; outFormula.textContent = ''; return; }\n      v = L * PI \/ E;\n      label = '\ubc18\uc0ac\uc728 \u03c1';\n      outValue.textContent = v.toFixed(3) + (v > 1 ? '  \u26a0 1 \ucd08\uacfc' : '');\n      f = '\u03c1 = ' + L + ' \u00d7 \u03c0 \u00f7 ' + E + ' = ' + v.toFixed(3);\n    }\n    outLabel.textContent = label;\n    outFormula.textContent = f;\n  }\n\n  for (var i = 0; i < modeBtns.length; i++) {\n    modeBtns[i].addEventListener('click', function(){\n      mode = parseInt(this.getAttribute('data-scmode'), 10);\n      paintModes();\n      calc();\n    });\n  }\n  for (var j = 0; j < rhoBtns.length; j++) {\n    rhoBtns[j].addEventListener('click', function(){\n      elR.value = this.getAttribute('data-scrho');\n      calc();\n    });\n  }\n  elE.addEventListener('input', calc);\n  elL.addEventListener('input', calc);\n  elR.addEventListener('input', calc);\n\n  paintModes();\n  calc();\n})();\n<\/script>\n\n\n\n<p class=\"wp-block-paragraph\">\uc138 \uac00\uc9c0 \ubaa8\ub4dc\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc870\ub3c4 \u2192 \ud718\ub3c4<\/strong> : \uc870\ub3c4\uacc4 \uce21\uc815\uac12\uc73c\ub85c \uadf8 \uba74\uc758 \ud718\ub3c4\ub97c \ucd94\uc815<\/li>\n\n\n\n<li><strong>\ud718\ub3c4 \u2192 \uc870\ub3c4<\/strong> : \ubaa9\ud45c \ud718\ub3c4\ub97c \ub9cc\uc871\ud558\ub824\uba74 \uc870\ub3c4\uac00 \uc5bc\ub9c8\ub098 \ud544\uc694\ud55c\uc9c0 \uc5ed\uc0b0<\/li>\n\n\n\n<li><strong>\ubc18\uc0ac\uc728 \uad6c\ud558\uae30<\/strong> : \uc870\ub3c4\uc640 \ud718\ub3c4\ub97c \ub458 \ub2e4 \uce21\uc815\ud588\uc744 \ub54c \uadf8 \uba74\uc758 \ubc18\uc0ac\uc728\uc744 \uc0b0\ucd9c<\/li>\n<\/ul>\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 <strong>\uc644\uc804\ud655\uc0b0\uba74(\ub7a8\ubc84\uc2dc\uc548 \ubc18\uc0ac\uba74) \uae30\uc900\uc785\ub2c8\ub2e4.<\/strong> \uad11\ud0dd\uba74, \uae08\uc18d\uba74, \uac70\uc6b8, \uadf8\ub9ac\uace0 \uc2a4\uc2a4\ub85c \ube5b\uc744 \ub0b4\ub294 \ub514\uc2a4\ud50c\ub808\uc774\uc5d0\ub294 \uc801\uc6a9\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc790\uc138\ud55c \uc870\uac74\uc740 \uc544\ub798\uc5d0\uc11c \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n<\/blockquote>\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%90_%EB%B3%80%ED%99%98_%EA%B3%B5%EC%8B%9D%EA%B3%BC_%EC%9B%90%EB%A6%AC\"><\/span>\ud83d\udcd0 \ubcc0\ud658 \uacf5\uc2dd\uacfc \uc6d0\ub9ac<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"524\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-01-concept-1024x524.png\" alt=\"\" class=\"wp-image-2486\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-01-concept-1024x524.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-01-concept-300x154.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-01-concept-767x393.png 767w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-01-concept.png 1232w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>L = E \u00d7 \u03c1 \u00f7 \u03c0\n\nL : \ud718\ub3c4 (cd\/m\u00b2)\nE : \uc870\ub3c4 (lx)\n\u03c1 : \ubc18\uc0ac\uc728 (0 ~ 1)\n\u03c0 : \uc6d0\uc8fc\uc728 (\uc57d 3.14159)\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ub17c\ub9ac\ub294 \ub2e8\uc21c\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\uba74\uc5d0 <strong>E(lx)\ub9cc\ud07c\uc758 \ube5b\uc774 \ub3c4\ub2ec<\/strong>\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uadf8\uc911 <strong>\u03c1 \ube44\uc728\ub9cc \ubc18\uc0ac<\/strong>\ub429\ub2c8\ub2e4. \ub098\uba38\uc9c0\ub294 \ud761\uc218\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ubc18\uc0ac\ub41c \ube5b\uc774 \ubc18\uad6c \uc804\uccb4\ub85c \ud37c\uc9c0\ubbc0\ub85c, <strong>\u03c0\ub85c \ub098\ub204\uba74<\/strong> \ub2e8\uc704 \uc785\uccb4\uac01\u00b7\ub2e8\uc704 \uba74\uc801\ub2f9 \uac12, \uc989 \ud718\ub3c4\uac00 \ub429\ub2c8\ub2e4.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%A4%94_%EC%99%9C_%ED%95%98%ED%95%84_%CF%80%EC%9D%BC%EA%B9%8C\"><\/span>\ud83e\udd14 \uc65c \ud558\ud544 \u03c0\uc77c\uae4c?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5ec\uae30\uac00 \uac00\uc7a5 \ub9ce\uc774 \uac78\ub9ac\ub294 \ubd80\ubd84\uc785\ub2c8\ub2e4. \"\ubc18\uad6c\ub2c8\uae4c 2\u03c0 \uc544\ub2cc\uac00?\" \uc2f6\uc9c0\ub9cc \u03c0\uac00 \ub9de\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"555\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-02-why-pi-1024x555.png\" alt=\"\" class=\"wp-image-2487\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-02-why-pi-1024x555.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-02-why-pi-300x163.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-02-why-pi-767x416.png 767w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-02-why-pi.png 1232w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc644\uc804\ud655\uc0b0\uba74\uc5d0\uc11c \ub098\uac00\ub294 \ube5b\uc758 \uc138\uae30\ub294 \ubc29\ud5a5\uc5d0 \ub530\ub77c <strong>cos \u03b8\ub85c \ubd84\ud3ec<\/strong>\ud569\ub2c8\ub2e4. \uc815\uba74\uc774 \uac00\uc7a5 \uc138\uace0 \ube44\uc2a4\ub4ec\ud560\uc218\ub85d \uc57d\ud574\uc9c0\ub294\ub370, \uc774 \ub54c\ubb38\uc5d0 <strong>\uc5b4\ub290 \uac01\ub3c4\uc5d0\uc11c \ubd10\ub3c4 \ubc1d\uae30(\ud718\ub3c4)\uac00 \uac19\uc544 \ubcf4\uc785\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubc18\uad6c \uc804\uccb4\ub85c \ub098\uac00\ub294 \uad11\uc18d\uc744 \uad6c\ud558\ub824\uba74 \uc774 cos \u03b8 \uac00\uc911\uce58\ub97c \ud3ec\ud568\ud574 \uc801\ubd84\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u222b cos \u03b8 d\u03a9  (\ubc18\uad6c \uc804\uccb4) = \u03c0\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc989 \ud718\ub3c4\uac00 1cd\/m\u00b2\uc778 \uba74\uc740 \ubc18\uad6c\ub85c 1lm\uc774 \uc544\ub2c8\ub77c <strong>\u03c0 lm<\/strong>\uc744 \ub0b4\ubcf4\ub0c5\ub2c8\ub2e4. \uadf8\ub798\uc11c \ub098\ub217\uc148\uc5d0 \u03c0\uac00 \ub4e4\uc5b4\uac11\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\udccc Python\uc73c\ub85c \ubc18\uad6c \uc218\uce58\uc801\ubd84\ud55c \uacb0\uacfc <strong>3.141593<\/strong>\uc73c\ub85c \u03c0\uc640 \uc77c\uce58\ud568\uc744 \ud655\uc778\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%94%81_%EC%97%AD%EB%B0%A9%ED%96%A5_%EA%B3%B5%EC%8B%9D\"><\/span>\ud83d\udd01 \uc5ed\ubc29\ud5a5 \uacf5\uc2dd<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>E = L \u00d7 \u03c0 \u00f7 \u03c1        (\ubaa9\ud45c \ud718\ub3c4\uc5d0 \ud544\uc694\ud55c \uc870\ub3c4)\n\u03c1 = L \u00d7 \u03c0 \u00f7 E        (\uce21\uc815\uac12\uc73c\ub85c \ubc18\uc0ac\uc728 \uc0b0\ucd9c)\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc138 \ubc88\uc9f8 \uc2dd\uc740 \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4. <strong>\uc870\ub3c4\uacc4\uc640 \ud718\ub3c4\uacc4\ub85c \uac19\uc740 \uba74\uc744 \uc7ac\uba74 \uadf8 \uba74\uc758 \ubc18\uc0ac\uc728\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/strong> \ubc18\uc0ac\uc728\uacc4\uac00 \uc5c6\uc5b4\ub3c4 \uc2e4\uce21\uc774 \uac00\ub2a5\ud569\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_%EB%B0%98%EC%82%AC%EC%9C%A8_%EC%B0%B8%EA%B3%A0%EA%B0%92\"><\/span>\ud83d\udcca \ubc18\uc0ac\uc728 \ucc38\uace0\uac12<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ubc18\uc0ac\uc728\uc744 \ubaa8\ub974\uba74 \ubcc0\ud658\uc774 \ubd88\uac00\ub2a5\ud569\ub2c8\ub2e4. \uc870\uba85 \uc124\uacc4\uc5d0\uc11c \uad00\ub840\uc801\uc73c\ub85c \uc4f0\ub294 \uae30\ubcf8\uac12\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ub300\uc0c1<\/th><th>\ubc18\uc0ac\uc728 \u03c1<\/th><th>\ube44\uace0<\/th><\/tr><\/thead><tbody><tr><td>\ucc9c\uc7a5 (\ubc31\uc0c9)<\/td><td>0.70 ~ 0.80<\/td><td>\uc124\uacc4 \uae30\ubcf8\uac12\uc73c\ub85c 0.70 \ub610\ub294 0.80 \uc0ac\uc6a9<\/td><\/tr><tr><td>\ubcbd (\ubc1d\uc740 \uc0c9)<\/td><td>0.50<\/td><td>\ubc1d\uc740 \uc0c9 \uae30\uc900 0.30~0.70 \ubc94\uc704<\/td><\/tr><tr><td>\ubc14\ub2e5 (\uc5b4\ub450\uc6b4 \uc0c9)<\/td><td>0.20<\/td><td>0.10~0.40 \ubc94\uc704<\/td><\/tr><tr><td>\ud770 \uc885\uc774<\/td><td>\uc57d 0.80 ~ 0.85<\/td><td>\uc6a9\uc9c0\uc5d0 \ub530\ub77c \ucc28\uc774<\/td><\/tr><tr><td>\ubaa9\uc7ac (\ubc1d\uc740 \uc0c9)<\/td><td>\uc57d 0.45<\/td><td>\u2014<\/td><\/tr><tr><td>\ucf58\ud06c\ub9ac\ud2b8<\/td><td>\uc57d 0.30<\/td><td>\uc624\uc5fc\ub418\uba74 \ub0ae\uc544\uc9d0<\/td><\/tr><tr><td>\uc544\uc2a4\ud314\ud2b8<\/td><td>\uc57d 0.10<\/td><td>\ub178\ud6c4\ub418\uba74 \ub192\uc544\uc9d0<\/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\">\ud83d\udccc \ucc9c\uc7a5 0.7 \/ \ubcbd 0.5 \/ \ubc14\ub2e5 0.2 \uc870\ud569\uc740 \uc870\uba85 \uc2dc\ubbac\ub808\uc774\uc158\uc758 \ud45c\uc900 \uae30\ubcf8\uac12\uc73c\ub85c \ub110\ub9ac \uc4f0\uc785\ub2c8\ub2e4. \uc790\ub8cc\uc5d0 \ub530\ub77c \ucc9c\uc7a5\uc744 0.8\ub85c \ub450\uae30\ub3c4 \ud569\ub2c8\ub2e4. \ud770 \uc885\uc774, \ubaa9\uc7ac \ub4f1\uc758 \uac12\uc740 \ub300\ud45c\uac12\uc774\uba70 <strong>\uc2e4\uc81c \uc7ac\uc9c8\uacfc \uc624\uc5fc \uc0c1\ud0dc\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9A%A0%EF%B8%8F_%EB%B0%98%EC%82%AC%EC%9C%A8%EC%9D%80_%EC%8B%9C%EA%B0%84%EC%9D%B4_%EC%A7%80%EB%82%98%EB%A9%B4_%EB%B3%80%ED%95%A9%EB%8B%88%EB%8B%A4\"><\/span>\u26a0\ufe0f \ubc18\uc0ac\uc728\uc740 \uc2dc\uac04\uc774 \uc9c0\ub098\uba74 \ubcc0\ud569\ub2c8\ub2e4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ucf58\ud06c\ub9ac\ud2b8\ub294 \uc5b4\ub450\uc6cc\uc9c0\uba74\uc11c \ubc18\uc0ac\uc728\uc774 \ub0ae\uc544\uc9c0\uace0, \uc544\uc2a4\ud314\ud2b8\ub294 \uc0c9\uc774 \ubc14\ub798\uba74\uc11c \uc624\ud788\ub824 \ub192\uc544\uc9d1\ub2c8\ub2e4. \ucc9c\uc7a5\uc7ac\ub3c4 \uba3c\uc9c0\uac00 \uc313\uc774\uba74 \uac12\uc774 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4. <strong>\uc624\ub798\ub41c \uacf5\uac04\uc744 \uacc4\uc0b0\ud560 \ub54c\ub294 \ucd08\uae30 \uc124\uacc4\uac12\uc744 \uadf8\ub300\ub85c \uc4f0\uba74 \uc548 \ub429\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc815\ud655\ud55c \uac12\uc774 \ud544\uc694\ud558\uba74 \uc704 \uacc4\uc0b0\uae30\uc758 <strong>\"\ubc18\uc0ac\uc728 \uad6c\ud558\uae30\" \ubaa8\ub4dc<\/strong>\ub85c \ud604\uc7a5\uc5d0\uc11c \uc9c1\uc811 \uce21\uc815\ud558\uc138\uc694.<\/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%92%A1_%EA%B0%99%EC%9D%80_%EC%A1%B0%EB%8F%84_%EB%8B%A4%EB%A5%B8_%ED%9C%98%EB%8F%84\"><\/span>\ud83d\udca1 \uac19\uc740 \uc870\ub3c4, \ub2e4\ub978 \ud718\ub3c4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ubcc0\ud658\uc774 \uc65c \uc911\uc694\ud55c\uc9c0\ub294 \uc608\uc2dc \ud558\ub098\uba74 \ucda9\ubd84\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"669\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-03-surface-comparison-1024x669.png\" alt=\"\" class=\"wp-image-2488\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-03-surface-comparison-1024x669.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-03-surface-comparison-300x196.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-03-surface-comparison-767x501.png 767w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/lux-luminance-03-surface-comparison.png 1305w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud45c\uba74<\/th><th>\ubc18\uc0ac\uc728<\/th><th>500lx\uc5d0\uc11c\uc758 \ud718\ub3c4<\/th><\/tr><\/thead><tbody><tr><td>\ud770 \uc885\uc774<\/td><td>0.85<\/td><td>135.3 cd\/m\u00b2<\/td><\/tr><tr><td>\ucc9c\uc7a5 \ubc31\uc0c9<\/td><td>0.80<\/td><td>127.3 cd\/m\u00b2<\/td><\/tr><tr><td>\ubcbd \ubc1d\uc740\uc0c9<\/td><td>0.50<\/td><td>79.6 cd\/m\u00b2<\/td><\/tr><tr><td>\ubaa9\uc7ac<\/td><td>0.45<\/td><td>71.6 cd\/m\u00b2<\/td><\/tr><tr><td>\ucf58\ud06c\ub9ac\ud2b8<\/td><td>0.30<\/td><td>47.7 cd\/m\u00b2<\/td><\/tr><tr><td>\ubc14\ub2e5 \uc5b4\ub450\uc6c0<\/td><td>0.20<\/td><td>31.8 cd\/m\u00b2<\/td><\/tr><tr><td>\uc544\uc2a4\ud314\ud2b8<\/td><td>0.10<\/td><td>15.9 cd\/m\u00b2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc870\ub3c4\ub294 \uc804\ubd80 500lx\ub85c \ub611\uac19\uc740\ub370 \ud718\ub3c4\ub294 13\ubc30 \uc774\uc0c1 \ucc28\uc774<\/strong>\ub0a9\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc0ac\ubb34\uc2e4 \uc870\ub3c4\ub97c \uae30\uc900\ub300\ub85c \ub9de\ucdc4\ub294\ub370\ub3c4 \"\uc5b4\ub461\ub2e4\"\ub294 \ubbfc\uc6d0\uc774 \ub098\uc624\ub294 \uacbd\uc6b0\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc6d0\uc778\uc740 \uc870\uba85\uc774 \uc544\ub2c8\ub77c <strong>\uc5b4\ub450\uc6b4 \uc0c9 \ucc45\uc0c1\uacfc \ubc14\ub2e5<\/strong>\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\ub78c\uc758 \ub208\uc774 \ub290\ub07c\ub294 \ubc1d\uae30\ub294 \uc870\ub3c4\uac00 \uc544\ub2c8\ub77c \ud718\ub3c4\uc5d0 \uac00\uae5d\uae30 \ub54c\ubb38\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 <strong>\uc870\uba85\uc744 \ub298\ub9ac\uae30 \uc804\uc5d0 \ub9c8\uac10\uc7ac\ub97c \uba3c\uc800 \ubcf4\uc138\uc694.<\/strong> \uac80\uc740 \ucc45\uc0c1\uc744 \ubc1d\uc740 \uc0c9\uc73c\ub85c \ubc14\uafb8\ub294 \uac83\uc774 \uc870\uba85 \uc99d\uc124\ubcf4\ub2e4 \uc800\ub834\ud558\uace0 \ud6a8\uacfc\uc801\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/blockquote>\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%EF%B8%8F_%EC%8B%A4%EB%AC%B4_%ED%99%9C%EC%9A%A9_3%EA%B0%80%EC%A7%80\"><\/span>\ud83d\udee0\ufe0f \uc2e4\ubb34 \ud65c\uc6a9 3\uac00\uc9c0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. \uc870\ub3c4 \uae30\uc900\uc744 \ud718\ub3c4 \uae30\uc900\uc73c\ub85c \ubc88\uc5ed\ud558\uae30<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc791\uc5c5\uba74 \uc870\ub3c4 \uae30\uc900(\uc608: \uc0ac\ubb34\uc2e4 500lx)\uc744 \ubc1b\uc558\ub294\ub370 \uac80\uc0ac \ub300\uc0c1\uc774 \ud718\ub3c4 \uc2a4\ud399\uc77c \ub54c, \uc774 \uacf5\uc2dd\uc73c\ub85c \ub300\ub7b5\uc801\uc778 \ubaa9\ud45c\uce58\ub97c \uc7a1\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. \ubc18\uc0ac\uc728 \ud604\uc7a5 \uce21\uc815<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc870\ub3c4\uacc4\uc640 \ud718\ub3c4\uacc4\ub97c \ud568\uaed8 \uac00\uc838\uac00 \uac19\uc740 \uc9c0\uc810\uc744 \uc7ac\uba74 \ubc18\uc0ac\uc728\uc774 \ub098\uc635\ub2c8\ub2e4. \uc2dc\ubbac\ub808\uc774\uc158 \uc785\ub825\uac12\uc744 \uc2e4\uc81c \ud604\uc7a5 \uac12\uc73c\ub85c \uad50\uccb4\ud558\uba74 \uc608\uce21 \uc815\ud655\ub3c4\uac00 \ud06c\uac8c \uc62c\ub77c\uac11\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. \ub208\ubd80\uc2ec \uac80\ud1a0\uc758 \ucd9c\ubc1c\uc810<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub208\ubd80\uc2ec\uc740 \ud718\ub3c4\uc758 \ubb38\uc81c\uc785\ub2c8\ub2e4. \uc870\ub3c4\ub9cc \uad00\ub9ac\ud558\ub358 \uacf5\uac04\uc5d0\uc11c \"\uc5b4\ub514\uac00 \ub108\ubb34 \ubc1d\uc740\uac00\"\ub97c \ucc3e\uc744 \ub54c, \ubc1d\uc740 \ub9c8\uac10\uc7ac \uc601\uc5ed\uc758 \ud718\ub3c4\ub97c \ucd94\uc815\ud574\ubcf4\uba74 \ud6c4\ubcf4\ub97c \uc881\ud790 \uc218 \uc788\uc2b5\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=\"%E2%9D%8C_%EC%9D%B4%EB%9F%B4_%EB%95%8C%EB%8A%94_%EC%93%B0%EB%A9%B4_%EC%95%88_%EB%90%A9%EB%8B%88%EB%8B%A4\"><\/span>\u274c \uc774\ub7f4 \ub54c\ub294 \uc4f0\uba74 \uc548 \ub429\ub2c8\ub2e4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uacf5\uc2dd\uc740 <strong>\uc644\uc804\ud655\uc0b0\uba74<\/strong>\uc774\ub77c\ub294 \uac15\ud55c \uac00\uc815 \uc704\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \uacbd\uc6b0\uc5d0\ub294 \uc624\ucc28\uac00 \ud06c\uac70\ub098 \uc544\uc608 \uc758\ubbf8\uac00 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ub300\uc0c1<\/th><th>\uc0ac\uc6a9 \uac00\ub2a5?<\/th><th>\uc774\uc720<\/th><\/tr><\/thead><tbody><tr><td>\ubb34\uad11 \ubcbd\uc9c0, \uc885\uc774, \ucf58\ud06c\ub9ac\ud2b8<\/td><td>\u2705 \uac00\ub2a5<\/td><td>\ud655\uc0b0 \ubc18\uc0ac\uc5d0 \uac00\uae4c\uc6c0<\/td><\/tr><tr><td>\ubb34\uad11 \ub3c4\uc7a5\uba74<\/td><td>\u2705 \ub300\uccb4\ub85c \uac00\ub2a5<\/td><td>\u2014<\/td><\/tr><tr><td>\uad11\ud0dd \ud0c0\uc77c, \uc720\uad11 \ub3c4\uc7a5<\/td><td>\u26a0\ufe0f \uc8fc\uc758<\/td><td>\ubcf4\ub294 \uac01\ub3c4\uc5d0 \ub530\ub77c \ud718\ub3c4\uac00 \ud06c\uac8c \ubcc0\ud568<\/td><\/tr><tr><td>\uae08\uc18d \ud45c\uba74, \uac70\uc6b8<\/td><td>\u274c \ubd88\uac00<\/td><td>\uc815\ubc18\uc0ac \uc131\ubd84\uc774 \uc9c0\ubc30\uc801<\/td><\/tr><tr><td>LCD\u00b7OLED \ud654\uba74<\/td><td>\u274c \ubd88\uac00<\/td><td>\uc2a4\uc2a4\ub85c \ube5b\uc744 \ub0c4. \ubc18\uc0ac\uc728 \uac1c\ub150\uc774 \uc544\ub2d8<\/td><\/tr><tr><td>\ubc18\ud22c\uba85 \ud655\uc0b0\ud310<\/td><td>\u274c \ubd88\uac00<\/td><td>\ud22c\uacfc\uad11\uc774 \uc8fc\uc131\ubd84. \ubcc4\ub3c4 \uacc4\uc0b0 \ud544\uc694<\/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 <strong>\uad11\ud0dd\uba74\uc5d0\uc11c\ub294 \"\uc5b4\ub290 \ubc29\ud5a5\uc5d0\uc11c \ubcf4\ub290\ub0d0\"\uac00 \uacb0\uacfc\ub97c \ubc14\uafc9\ub2c8\ub2e4.<\/strong> \uac19\uc740 \uba74\uc778\ub370 \uac01\ub3c4\uc5d0 \ub530\ub77c \ud718\ub3c4\uac00 \uc218\uc2ed \ubc30 \ucc28\uc774 \ub0a0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \uacc4\uc0b0\uc774 \uc544\ub2c8\ub77c <strong>\uc2e4\uc81c \uad00\uce21 \ubc29\ud5a5\uc5d0\uc11c\uc758 \ud718\ub3c4 \uce21\uc815<\/strong>\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<\/blockquote>\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=\"%E2%9D%93_%EC%9E%90%EC%A3%BC_%ED%95%98%EB%8A%94_%EC%98%A4%ED%95%B4_3%EA%B0%80%EC%A7%80\"><\/span>\u2753 \uc790\uc8fc \ud558\ub294 \uc624\ud574 3\uac00\uc9c0<span class=\"ez-toc-section-end\"><\/span><\/h2>\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>\uc624\ud574 1. \"\u03c0 \ub300\uc2e0 2\u03c0\ub85c \ub098\ub220\uc57c \ud55c\ub2e4\"<\/strong> \u2192 \ubc18\uad6c\uc758 \uc785\uccb4\uac01\uc740 2\u03c0 sr\uc774 \ub9de\uc9c0\ub9cc, \ub7a8\ubc84\uc2dc\uc548 \ubd84\ud3ec\uc758 cos \u03b8 \uac00\uc911\uce58\ub97c \ud3ec\ud568\ud574 \uc801\ubd84\ud558\uba74 \u03c0\uac00 \ub098\uc635\ub2c8\ub2e4. \ub2e8\uc21c\ud788 \uc785\uccb4\uac01\uc73c\ub85c \ub098\ub204\ub294 \uac83\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n<\/blockquote>\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>\uc624\ud574 2. \"\ubc18\uc0ac\uc728\uc740 \uc0c9\ub9cc \ubcf4\uba74 \uc548\ub2e4\"<\/strong> \u2192 \uac19\uc740 \ud770\uc0c9\uc774\ub77c\ub3c4 \uad11\ud0dd \uc5ec\ubd80\uc640 \uc7ac\uc9c8\uc5d0 \ub530\ub77c \ubc18\uc0ac\uc728\uc774 \ub2e4\ub985\ub2c8\ub2e4. \ubb34\uad11 \ubc31\uc0c9\uacfc \uc720\uad11 \ubc31\uc0c9\uc740 \ud655\uc0b0 \ubc18\uc0ac \ud2b9\uc131\uc774 \uc804\ud600 \ub2e4\ub985\ub2c8\ub2e4. \uc815\ud655\ud55c \uac12\uc740 \uce21\uc815\uc774 \ub2f5\uc785\ub2c8\ub2e4.<\/p>\n<\/blockquote>\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>\uc624\ud574 3. \"\uc774 \uacf5\uc2dd\uc73c\ub85c \ubaa8\ub2c8\ud130 \ub2c8\ud2b8\ub97c \uacc4\uc0b0\ud560 \uc218 \uc788\ub2e4\"<\/strong> \u2192 \ubd88\uac00\ub2a5\ud569\ub2c8\ub2e4. \ubaa8\ub2c8\ud130\ub294 \uc2a4\uc2a4\ub85c \ube5b\uc744 \ub0b4\ubbc0\ub85c \uc870\ub3c4\u00b7\ubc18\uc0ac\uc728\uacfc \ubb34\uad00\ud569\ub2c8\ub2e4. \ubaa8\ub2c8\ud130 \ud718\ub3c4\ub294 \ud718\ub3c4\uacc4\ub85c \uc9c1\uc811 \uce21\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<\/blockquote>\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=\"%E2%9C%85_%ED%95%9C%EB%88%88%EC%97%90_%EC%A0%95%EB%A6%AC\"><\/span>\u2705 \ud55c\ub208\uc5d0 \uc815\ub9ac<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>\ud56d\ubaa9<\/th><th>\ub0b4\uc6a9<\/th><\/tr><\/thead><tbody><tr><td>\uae30\ubcf8 \uacf5\uc2dd<\/td><td>L = E \u00d7 \u03c1 \u00f7 \u03c0<\/td><\/tr><tr><td>\uc5ed\uc0b0 (\uc870\ub3c4)<\/td><td>E = L \u00d7 \u03c0 \u00f7 \u03c1<\/td><\/tr><tr><td>\uc5ed\uc0b0 (\ubc18\uc0ac\uc728)<\/td><td>\u03c1 = L \u00d7 \u03c0 \u00f7 E<\/td><\/tr><tr><td>\u03c0\uc758 \uadfc\uac70<\/td><td>\ubc18\uad6c cos \u03b8 \uc801\ubd84 = \u03c0<\/td><\/tr><tr><td>\uc801\uc6a9 \uc870\uac74<\/td><td>\uc644\uc804\ud655\uc0b0\uba74 (\ubb34\uad11 \ud45c\uba74)<\/td><\/tr><tr><td>\uc801\uc6a9 \ubd88\uac00<\/td><td>\uad11\ud0dd\uba74, \uae08\uc18d, \uc790\ubc1c\uad11 \ud654\uba74, \ud655\uc0b0\ud310<\/td><\/tr><tr><td>\ud45c\uc900 \ubc18\uc0ac\uc728<\/td><td>\ucc9c\uc7a5 0.7~0.8 \/ \ubcbd 0.5 \/ \ubc14\ub2e5 0.2<\/td><\/tr><tr><td>\uc2e4\ubb34 \ud3ec\uc778\ud2b8<\/td><td>\uac19\uc740 \uc870\ub3c4\ub77c\ub3c4 \ub9c8\uac10\uc7ac\uc5d0 \ub530\ub77c \uccb4\uac10 \ubc1d\uae30\uac00 \ud06c\uac8c \ub2e4\ub984<\/td><\/tr><\/tbody><\/table><\/figure>\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%8E%AF_%EC%98%A4%EB%8A%98_%EB%B0%94%EB%A1%9C_%ED%95%B4%EB%B3%BC_%EA%B2%83\"><\/span>\ud83c\udfaf \uc624\ub298 \ubc14\ub85c \ud574\ubcfc \uac83<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\uc704 \uacc4\uc0b0\uae30\uc5d0 <strong>\ud604\uc7ac \uc0ac\ubb34\uc2e4 \uc870\ub3c4\uc640 \ucc45\uc0c1 \ubc18\uc0ac\uc728 \ucd94\uc815\uac12<\/strong>\uc744 \ub123\uc5b4 \ud718\ub3c4\ub97c \uacc4\uc0b0\ud574\ubcf4\uc138\uc694. \uccb4\uac10\uacfc \ube44\uad50\ud574\ubcf4\uba74 \uac10\uc774 \uc7a1\ud799\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc870\ub3c4\uacc4\uc640 \ud718\ub3c4\uacc4\uac00 \ubaa8\ub450 \uc788\ub2e4\uba74 <strong>\"\ubc18\uc0ac\uc728 \uad6c\ud558\uae30\" \ubaa8\ub4dc<\/strong>\ub85c \uc2e4\uc81c \ubcbd\uacfc \ubc14\ub2e5\uc758 \ubc18\uc0ac\uc728\uc744 \uc7ac\ubcf4\uc138\uc694. \uc124\uacc4 \uae30\ubcf8\uac12\uacfc \uc5bc\ub9c8\ub098 \ub2e4\ub978\uc9c0 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc5b4\ub461\ub2e4\ub294 \ubbfc\uc6d0\uc774 \uc788\ub294 \uacf5\uac04\uc774\ub77c\uba74, \uc870\uba85\uc744 \ubcf4\uae30 \uc804\uc5d0 <strong>\ubc14\ub2e5\u00b7\ucc45\uc0c1\u00b7\ubcbd\uc758 \ubc18\uc0ac\uc728\ubd80\ud130<\/strong> \ud655\uc778\ud574\ubcf4\uc138\uc694.<\/li>\n<\/ol>\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%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>\ud83d\udd2e \uc801\ubd84\uad6c\uc640 \uc870\ub3c4\uacc4\u00b7\ud718\ub3c4\uacc4\uc758 \ucc28\uc774 (\ubc1c\ud589 \ud6c4 \ub9c1\ud06c \uc5f0\uacb0) \u2014 \uc870\ub3c4\uc640 \ud718\ub3c4\uac00 \uc560\ucd08\uc5d0 \ubb34\uc5c7\uc744 \uc7ac\ub294 \uac12\uc778\uc9c0, \uc7a5\ube44\ub294 \uc5b4\ub5bb\uac8c \ub2e4\ub978\uc9c0 \uc815\ub9ac\ud588\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ud83c\udfa8 <a href=\"https:\/\/steelcrucian.com\/led-light-uniformity-calculation-guide\/\">\uc870\uba85 \uade0\uc77c\ub3c4 \uacc4\uc0b0 3\uac00\uc9c0 \uc644\ubcbd\uc815\ub9ac + \ubb34\ub8cc \uacc4\uc0b0\uae30<\/a> \u2014 \uc870\ub3c4\uacc4\ub85c \uc5ec\ub7ec \uc810\uc744 \uce21\uc815\ud588\uc744 \ub54c \uade0\uc77c\ub3c4\ub97c \ud310\uc815\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ud83d\udca1 <a href=\"https:\/\/steelcrucian.com\/inverse-square-cosine-law-lighting\/\">\ucf54\uc0ac\uc778 \ubc95\uce59\/\uc5ed\uc81c\uacf1 \ubc95\uce59<\/a> \u2014 \uc870\ub3c4\uac00 \uac70\ub9ac\uc640 \uac01\ub3c4\uc5d0 \ub530\ub77c \uc65c \ubcc0\ud558\ub294\uc9c0. \uc774 \uae00\uc758 cos \u03b8 \uac1c\ub150\uc774 \uc5ec\uae30\uc11c\ub3c4 \uc4f0\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\uc870\ub3c4\uacc4\ub85c \ucc45\uc0c1\uc744 \uc7ac\ub2c8 500lx\uac00 \ub098\uc654\uc2b5\ub2c8\ub2e4. \uadf8\ub7f0\ub370 \uaddc\uaca9\uc11c\uc5d0\ub294 &#8220;\ud718\ub3c4 80cd\/m\u00b2 \uc774\uc0c1&#8221;\uc774\ub77c\uace0 \uc801\ud600 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ub458\uc740 \ube44\uad50\ud560 \uc218 \uc788\uc744\uae4c\uc694? \uc870\uac74\ub9cc \ub9de\uc73c\uba74 \uacf5\uc2dd \ud558\ub098\ub85c \ubcc0\ud658\ub429\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c \uc6d0\ub9ac\ub97c \uc124\uba85\ud558\uace0, \ubc14\ub85c \uc4f8 \uc218 \uc788\ub294 \uacc4\uc0b0\uae30\ub97c \ud568\uaed8 \ub4dc\ub9bd\ub2c8\ub2e4. \ud83d\udca1 \uc870\ub3c4(lx)\uc640 \ud718\ub3c4(cd\/m\u00b2)\uac00 \uc560\ucd08\uc5d0 \ubb34\uc5c7\uc744 \uc7ac\ub294 \uac12\uc778\uc9c0 \ud5f7\uac08\ub9ac\uc2e0\ub2e4\uba74 \uc801\ubd84\uad6c\uc640 \uc870\ub3c4\uacc4\u00b7\ud718\ub3c4\uacc4\uc758 \ucc28\uc774 \uae00\uc744 \uba3c\uc800 \ubcf4\uc2dc\uba74 \uc774\ud574\uac00 \ube60\ub985\ub2c8\ub2e4. \ud83d\udd04 \uc870\ub3c4 \u2194 \ud718\ub3c4 \ubcc0\ud658 \uacc4\uc0b0\uae30&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":[854,857,786,856,82,851,858,83],"class_list":["post-2485","post","type-post","status-publish","format-standard","hentry","category-optics","tag-854","tag-857","tag-786","tag-856","tag-82","tag-851","tag-858","tag-83"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2485","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=2485"}],"version-history":[{"count":2,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2485\/revisions"}],"predecessor-version":[{"id":2490,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2485\/revisions\/2490"}],"wp:attachment":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/media?parent=2485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/categories?post=2485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/tags?post=2485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}