{"id":2386,"date":"2026-09-09T22:33:00","date_gmt":"2026-09-09T13:33:00","guid":{"rendered":"https:\/\/steelcrucian.com\/?p=2386"},"modified":"2026-09-09T22:36:25","modified_gmt":"2026-09-09T13:36:25","slug":"total-internal-reflection-critical-angle-guide","status":"publish","type":"post","link":"https:\/\/steelcrucian.com\/total-internal-reflection-critical-angle-guide\/","title":{"rendered":"\ud83e\udea9 \uc804\ubc18\uc0ac(TIR)\uc640 \uc784\uacc4\uac01 \uc644\ubcbd\uc815\ub9ac \u2013 \ube5b\uc774 \ub9e4\uc9c8\uc744 \ube60\uc838\ub098\uac00\uc9c0 \ubabb\ud558\ub294 \uc21c\uac04"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\uc2a4\ub12c\uc758 \ubc95\uce59 \uae00\uc5d0\uc11c \ube5b\uc774 \ub9e4\uc9c8 \uacbd\uacc4\ub97c \uc9c0\ub0a0 \ub54c \uc65c \uaebe\uc774\ub294\uc9c0 \uc815\ub9ac\ud588\uc2b5\ub2c8\ub2e4. \uadf8\ub7f0\ub370 \uac01\ub3c4\ub97c \uacc4\uc18d \ud0a4\uc6b0\ub2e4 \ubcf4\uba74 \uc5b4\ub290 \uc21c\uac04\ubd80\ud130 \ube5b\uc774 \uaebe\uc774\ub294 \uac8c \uc544\ub2c8\ub77c \uc544\uc608 \ubabb \ube60\uc838\ub098\uac00\uace0 \ud295\uaca8 \ub098\uc624\ub294 \uad6c\uac04\uc774 \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \ubb3c\uc548\uacbd\uc744 \uc4f0\uace0 \ubb3c\uc18d\uc5d0\uc11c \uc218\uba74 \uc704\ub97c \uc62c\ub824\ub2e4\ubd24\uc744 \ub54c, \uc5b4\ub290 \uac01\ub3c4\ubd80\ud130\ub294 \uc218\uba74\uc774 \ub9c8\uce58 \uac70\uc6b8\ucc98\ub7fc \ud558\ub298 \ub300\uc2e0 \ubb3c\uc18d \ud48d\uacbd\ub9cc \ube44\ucdb0 \ubcf4\uc774\ub294 \ud604\uc0c1\uc744 \ubcf8 \uc801 \uc788\uc73c\uc2e4 \uac81\ub2c8\ub2e4. \ub2e4\uc774\uc544\ubaac\ub4dc\uac00 \uc720\ub09c\ud788 \ubc18\uc9dd\uc774\ub294 \uc774\uc720\ub3c4, \uad11\uc12c\uc720\ub85c \ube5b \uc190\uc2e4 \uc5c6\uc774 \ud1b5\uc2e0 \uc2e0\ud638\ub97c \ubcf4\ub0bc \uc218 \uc788\ub294 \uc774\uc720\ub3c4 \uc804\ubd80 \uac19\uc740 \uc6d0\ub9ac \ud558\ub098\ub85c \uc124\uba85\ub429\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\/total-internal-reflection-critical-angle-guide\/#%F0%9F%94%8D_%EC%A0%84%EB%B0%98%EC%82%AC_%EB%8C%80%EC%B2%B4_%EB%AD%90%EA%B0%80_%E2%80%9C%EC%A0%84%EB%B6%80%E2%80%9D_%EB%B0%98%EC%82%AC%EB%90%9C%EB%8B%A4%EB%8A%94_%EA%B1%B8%EA%B9%8C\" >\ud83d\udd0d \uc804\ubc18\uc0ac, \ub300\uccb4 \ubb50\uac00 &#8220;\uc804\ubd80&#8221; \ubc18\uc0ac\ub41c\ub2e4\ub294 \uac78\uae4c<\/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\/total-internal-reflection-critical-angle-guide\/#%F0%9F%93%90_%EC%9E%84%EA%B3%84%EA%B0%81%CE%B8c_%EC%8A%A4%EB%84%AC%EC%9D%98_%EB%B2%95%EC%B9%99%EC%97%90%EC%84%9C_%EB%B0%94%EB%A1%9C_%EC%9C%A0%EB%8F%84%EB%90%A9%EB%8B%88%EB%8B%A4\" >\ud83d\udcd0 \uc784\uacc4\uac01(\u03b8c), \uc2a4\ub12c\uc758 \ubc95\uce59\uc5d0\uc11c \ubc14\ub85c \uc720\ub3c4\ub429\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\/total-internal-reflection-critical-angle-guide\/#%F0%9F%93%8A_%EC%8B%A4%EC%A0%9C_%EB%A7%A4%EC%A7%88%EB%B3%84_%EC%9E%84%EA%B3%84%EA%B0%81%EC%9D%80_%EB%AA%87_%EB%8F%84%EC%9D%BC%EA%B9%8C\" >\ud83d\udcca \uc2e4\uc81c \ub9e4\uc9c8\ubcc4 \uc784\uacc4\uac01\uc740 \uba87 \ub3c4\uc77c\uae4c<\/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\/total-internal-reflection-critical-angle-guide\/#%F0%9F%92%A1_%EC%A0%84%EB%B0%98%EC%82%AC%EB%8A%94_%EC%96%B4%EB%94%94%EC%97%90_%EC%93%B0%EC%9D%BC%EA%B9%8C_%E2%80%94_%EA%B4%91%EC%84%AC%EC%9C%A0%EC%99%80_%EB%8F%84%EA%B4%91%ED%8C%90\" >\ud83d\udca1 \uc804\ubc18\uc0ac\ub294 \uc5b4\ub514\uc5d0 \uc4f0\uc77c\uae4c \u2014 \uad11\uc12c\uc720\uc640 \ub3c4\uad11\ud310<\/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\/total-internal-reflection-critical-angle-guide\/#%E2%9A%A0%EF%B8%8F_%ED%97%B7%EA%B0%88%EB%A6%AC%EA%B8%B0_%EC%89%AC%EC%9A%B4_%EC%A0%90\" >\u26a0\ufe0f \ud5f7\uac08\ub9ac\uae30 \uc26c\uc6b4 \uc810<\/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\/total-internal-reflection-critical-angle-guide\/#%F0%9F%A7%AD_%ED%95%9C%EB%88%88%EC%97%90_%EC%A0%95%EB%A6%AC\" >\ud83e\udded \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-7\" href=\"https:\/\/steelcrucian.com\/total-internal-reflection-critical-angle-guide\/#%F0%9F%93%9A_%ED%95%A8%EA%BB%98_%EB%B3%B4%EB%A9%B4_%EC%A2%8B%EC%9D%80_%EA%B8%80\" >\ud83d\udcda \ud568\uaed8 \ubcf4\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_%EC%A0%84%EB%B0%98%EC%82%AC_%EB%8C%80%EC%B2%B4_%EB%AD%90%EA%B0%80_%E2%80%9C%EC%A0%84%EB%B6%80%E2%80%9D_%EB%B0%98%EC%82%AC%EB%90%9C%EB%8B%A4%EB%8A%94_%EA%B1%B8%EA%B9%8C\"><\/span>\ud83d\udd0d \uc804\ubc18\uc0ac, \ub300\uccb4 \ubb50\uac00 &#8220;\uc804\ubd80&#8221; \ubc18\uc0ac\ub41c\ub2e4\ub294 \uac78\uae4c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc804\ubc18\uc0ac(Total Internal Reflection, TIR)\ub294 \ube5b\uc774 \uad74\uc808\ub960\uc774 \ub192\uc740 \ub9e4\uc9c8(\ubc00\ud55c \ub9e4\uc9c8)\uc5d0\uc11c \uad74\uc808\ub960\uc774 \ub0ae\uc740 \ub9e4\uc9c8(\uc18c\ud55c \ub9e4\uc9c8)\ub85c \uc9c4\ud589\ud560 \ub54c, \uc785\uc0ac\uac01\uc774 \uc77c\uc815 \uac01\ub3c4\ub97c \ub118\uc5b4\uc11c\uba74 \uad74\uc808\ub418\uc5b4 \ube60\uc838\ub098\uac00\uc9c0 \ubabb\ud558\uace0 100% \ubc18\uc0ac\ub418\ub294 \ud604\uc0c1\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud575\uc2ec \uc870\uac74 \ub450 \uac00\uc9c0\ub97c \uba3c\uc800 \uc9da\uace0 \uac00\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ubc18\ub4dc\uc2dc <strong>\ubc00\ud55c \ub9e4\uc9c8 \u2192 \uc18c\ud55c \ub9e4\uc9c8<\/strong> \ubc29\ud5a5\uc73c\ub85c \uc9c4\ud589\ud560 \ub54c\ub9cc \uc77c\uc5b4\ub0a9\ub2c8\ub2e4 (\uc608: \ubb3c \u2192 \uacf5\uae30, \uc720\ub9ac \u2192 \uacf5\uae30)<\/li>\n\n\n\n<li>\uc785\uc0ac\uac01\uc774 **\uc784\uacc4\uac01(Critical Angle, \u03b8c)**\ubcf4\ub2e4 \ucee4\uc57c \ud569\ub2c8\ub2e4<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2a4\ub12c\uc758 \ubc95\uce59(n1 \u00b7 sin\u03b81 = n2 \u00b7 sin\u03b82)\uc5d0\uc11c n1 &gt; n2\uc778 \uc0c1\ud669\uc744 \ub123\uace0 \uac01\ub3c4\ub97c \uacc4\uc18d \ud0a4\uc6cc\ubcf4\uba74, \uc5b4\ub290 \uc21c\uac04 \u03b82\uac00 90\u00b0\uc5d0 \ub3c4\ub2ec\ud558\ub294 \uc9c0\uc810\uc774 \uc0dd\uae41\ub2c8\ub2e4. \uc774 \uc9c0\uc810\uc758 \u03b81\uc774 \ubc14\ub85c \uc784\uacc4\uac01\uc785\ub2c8\ub2e4. \uc774\ubcf4\ub2e4 \uc785\uc0ac\uac01\uc774 \ucee4\uc9c0\uba74 \ubc29\uc815\uc2dd \uc790\uccb4\uac00 \uc131\ub9bd\ud558\uc9c0 \uc54a\uac8c \ub418\uace0, \ube5b\uc740 \uad74\uc808 \ub300\uc2e0 \ubc18\uc0ac\ub9cc \ud558\uac8c \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>[\uc784\uacc4\uac01\ubcf4\ub2e4 \uc791\uc744 \ub54c \/ \uac19\uc744 \ub54c \/ \ud074 \ub54c \uc138 \uac00\uc9c0 \ube44\uad50]<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"491\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/tir-three-cases-1024x491.png\" alt=\"\" class=\"wp-image-2389\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/tir-three-cases-1024x491.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/tir-three-cases-300x144.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/tir-three-cases-767x368.png 767w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/tir-three-cases-1536x737.png 1536w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/tir-three-cases.png 1984w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%93%90_%EC%9E%84%EA%B3%84%EA%B0%81%CE%B8c_%EC%8A%A4%EB%84%AC%EC%9D%98_%EB%B2%95%EC%B9%99%EC%97%90%EC%84%9C_%EB%B0%94%EB%A1%9C_%EC%9C%A0%EB%8F%84%EB%90%A9%EB%8B%88%EB%8B%A4\"><\/span>\ud83d\udcd0 \uc784\uacc4\uac01(\u03b8c), \uc2a4\ub12c\uc758 \ubc95\uce59\uc5d0\uc11c \ubc14\ub85c \uc720\ub3c4\ub429\ub2c8\ub2e4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc784\uacc4\uac01 \uacf5\uc2dd\uc740 \ub530\ub85c \uc678\uc6b8 \ud544\uc694 \uc5c6\uc774, \uc2a4\ub12c\uc758 \ubc95\uce59\uc5d0 &#8220;\uad74\uc808\uac01 = 90\u00b0&#8221;\ub77c\ub294 \uc870\uac74 \ud558\ub098\ub9cc \ub123\uc73c\uba74 \ubc14\ub85c \ub098\uc635\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc2a4\ub12c\uc758 \ubc95\uce59: n1 \u00b7 sin\u03b81 = n2 \u00b7 sin\u03b82<\/li>\n\n\n\n<li>\uad74\uc808\uac01\uc774 90\u00b0\uac00 \ub418\ub294 \uc21c\uac04\uc744 \uc784\uacc4\uac01(\u03b8c)\uc774\ub77c\uace0 \uc815\uc758: n1 \u00b7 sin\u03b8c = n2 \u00b7 sin90\u00b0<\/li>\n\n\n\n<li>sin90\u00b0 = 1\uc774\ubbc0\ub85c: n1 \u00b7 sin\u03b8c = n2<\/li>\n\n\n\n<li>\uc815\ub9ac\ud558\uba74: <strong>sin\u03b8c = n2 \/ n1<\/strong><\/li>\n\n\n\n<li>\ub530\ub77c\uc11c: <strong>\u03b8c = arcsin(n2 \/ n1)<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>[\uc784\uacc4\uac01 \uc815\uc758\uc640 \uacf5\uc2dd \uc720\ub3c4]<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"734\" height=\"1024\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/critical-angle-formula-734x1024.png\" alt=\"\" class=\"wp-image-2387\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/critical-angle-formula-734x1024.png 734w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/critical-angle-formula-215x300.png 215w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/critical-angle-formula-768x1071.png 768w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/critical-angle-formula.png 772w\" sizes=\"auto, (max-width: 734px) 100vw, 734px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%93%8A_%EC%8B%A4%EC%A0%9C_%EB%A7%A4%EC%A7%88%EB%B3%84_%EC%9E%84%EA%B3%84%EA%B0%81%EC%9D%80_%EB%AA%87_%EB%8F%84%EC%9D%BC%EA%B9%8C\"><\/span>\ud83d\udcca \uc2e4\uc81c \ub9e4\uc9c8\ubcc4 \uc784\uacc4\uac01\uc740 \uba87 \ub3c4\uc77c\uae4c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uacf5\uc2dd\uc5d0 \uc2e4\uc81c \uad74\uc808\ub960\uc744 \ub123\uc5b4\ubcf4\uba74 \uac10\uc774 \ud655\uc2e4\ud788 \uc7a1\ud799\ub2c8\ub2e4. \ubaa8\ub450 &#8220;\uc774 \ub9e4\uc9c8 \u2192 \uacf5\uae30(n\u22481)&#8221;\ub85c \ub098\uac00\ub294 \uc0c1\ud669\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ubb3c(n=1.33) \u2192 \uacf5\uae30<\/strong>: \u03b8c = arcsin(1\/1.33) \u2248 <strong>48.8\u00b0<\/strong><\/li>\n\n\n\n<li><strong>\uc720\ub9ac(n=1.5) \u2192 \uacf5\uae30<\/strong>: \u03b8c = arcsin(1\/1.5) \u2248 <strong>41.8\u00b0<\/strong><\/li>\n\n\n\n<li><strong>\ub2e4\uc774\uc544\ubaac\ub4dc(n=2.42) \u2192 \uacf5\uae30<\/strong>: \u03b8c = arcsin(1\/2.42) \u2248 <strong>24.4\u00b0<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uad74\uc808\ub960\uc774 \ub192\uc744\uc218\ub85d \uc784\uacc4\uac01\uc740 \uc791\uc544\uc9d1\ub2c8\ub2e4. \ub2e4\uc774\uc544\ubaac\ub4dc\uc758 \uc784\uacc4\uac01\uc774 24.4\u00b0\ubc16\uc5d0 \uc548 \ub41c\ub2e4\ub294 \uac74, \ube5b\uc774 \uc544\uc8fc \uc0b4\uc9dd\ub9cc \uae30\uc6b8\uc5b4\uc838 \ub4e4\uc5b4\uac00\ub3c4 \uac70\uc758 \ub2e4 \uac07\ud600\uc11c \ub0b4\ubd80\uc5d0\uc11c \uacc4\uc18d \ubc18\uc0ac\ub41c\ub2e4\ub294 \ub73b\uc785\ub2c8\ub2e4. \ub2e4\uc774\uc544\ubaac\ub4dc \uc138\uacf5\uc0ac\ub4e4\uc774 \ucef7\ud305 \uac01\ub3c4\ub97c \uc815\ubc00\ud558\uac8c \uc124\uacc4\ud558\ub294 \uc774\uc720\uac00 \ubc14\ub85c \uc774 \uc784\uacc4\uac01 \uc548\uc5d0\uc11c \ube5b\uc744 \ucd5c\ub300\ud55c \uac00\ub46c \ubc18\uc9dd\uc784\uc744 \uadf9\ub300\ud654\ud558\uae30 \uc704\ud574\uc11c\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%92%A1_%EC%A0%84%EB%B0%98%EC%82%AC%EB%8A%94_%EC%96%B4%EB%94%94%EC%97%90_%EC%93%B0%EC%9D%BC%EA%B9%8C_%E2%80%94_%EA%B4%91%EC%84%AC%EC%9C%A0%EC%99%80_%EB%8F%84%EA%B4%91%ED%8C%90\"><\/span>\ud83d\udca1 \uc804\ubc18\uc0ac\ub294 \uc5b4\ub514\uc5d0 \uc4f0\uc77c\uae4c \u2014 \uad11\uc12c\uc720\uc640 \ub3c4\uad11\ud310<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc804\ubc18\uc0ac\ub294 \ub2e8\uc21c\ud788 \uc2e0\uae30\ud55c \ud604\uc0c1\uc774 \uc544\ub2c8\ub77c \uc2e4\ubb34\uc5d0\uc11c \uc815\ub9d0 \ub9ce\uc774 \ud65c\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uad11\uc12c\uc720(Optical Fiber)<\/strong>: \ucf54\uc5b4(\uad74\uc808\ub960 \ub192\uc74c)\uc640 \ud074\ub798\ub529(\uad74\uc808\ub960 \ub0ae\uc74c)\uc758 \uacbd\uacc4\uc5d0\uc11c \ube5b\uc774 \uacc4\uc18d \uc804\ubc18\uc0ac\ub418\uba70 \uc190\uc2e4 \uc5c6\uc774 \uba3c \uac70\ub9ac\uae4c\uc9c0 \uc2e0\ud638\ub97c \uc804\ub2ec\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud504\ub9ac\uc998 \uc30d\uc548\uacbd\u00b7\uc7a0\ub9dd\uacbd<\/strong>: 45\ub3c4 \uc9c1\uac01 \ud504\ub9ac\uc998\uc758 \ube57\uba74\uc5d0 \ube5b\uc774 45\u00b0\ub85c \uc785\uc0ac\ud558\uba74, \uc720\ub9ac\uc758 \uc784\uacc4\uac01(\uc57d 41.8\u00b0)\ubcf4\ub2e4 \ud06c\uae30 \ub54c\ubb38\uc5d0 \uac70\uc6b8 \uc5c6\uc774\ub3c4 100% \ubc18\uc0ac\uac00 \uc77c\uc5b4\ub0a9\ub2c8\ub2e4. \uac70\uc6b8\ucc98\ub7fc \ucf54\ud305\ud560 \ud544\uc694\uac00 \uc5c6\uc5b4 \ubc18\uc0ac \uc190\uc2e4\uc774 \uc801\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>[\uad11\uc12c\uc720 \uc18d \uc804\ubc18\uc0ac \uacbd\ub85c]<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"469\" src=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/fiber-optic-tir-1024x469.png\" alt=\"\" class=\"wp-image-2388\" srcset=\"https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/fiber-optic-tir-1024x469.png 1024w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/fiber-optic-tir-300x137.png 300w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/fiber-optic-tir-767x351.png 767w, https:\/\/steelcrucian.com\/wp-content\/uploads\/2026\/09\/fiber-optic-tir.png 1448w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc55e\uc73c\ub85c \ub2e4\ub8f0 \ub3c4\uad11\ud310(LGP)\uc774\ub098 2\ucc28 \ub80c\uc988(Secondary Optics) \uc124\uacc4\ub3c4 \uacb0\uad6d \uc774 \uc804\ubc18\uc0ac \uc870\uac74\uc744 \uc5bc\ub9c8\ub098 \uc815\uad50\ud558\uac8c \uc81c\uc5b4\ud558\ub290\ub0d0\uc758 \ubb38\uc81c\uc785\ub2c8\ub2e4. \ub2e4\uc74c \ud3b8\uc5d0\uc11c\ub294 \ubc18\uc0ac\uac00 100%\uac00 \uc544\ub2c8\ub77c \uc77c\ubd80\ub9cc \uc77c\uc5b4\ub098\ub294 &#8220;\ud504\ub808\ub12c \ubc18\uc0ac&#8221;\uc640, \ubc18\uc0ac\uad11\uc758 \uc131\uc9c8\uc774 \ub2ec\ub77c\uc9c0\ub294 &#8220;\ud3b8\uad11&#8221; \uac1c\ub150\uc744 \uc774\uc5b4\uc11c \ub2e4\ub8e8\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9A%A0%EF%B8%8F_%ED%97%B7%EA%B0%88%EB%A6%AC%EA%B8%B0_%EC%89%AC%EC%9A%B4_%EC%A0%90\"><\/span>\u26a0\ufe0f \ud5f7\uac08\ub9ac\uae30 \uc26c\uc6b4 \uc810<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\">\ubc29\ud5a5\uc774 \ubc18\ub300\uba74(\uc18c\ud55c \ub9e4\uc9c8 \u2192 \ubc00\ud55c \ub9e4\uc9c8, \uc608: \uacf5\uae30 \u2192 \ubb3c) \uc804\ubc18\uc0ac\uac00 \uc544\uc608 \uc77c\uc5b4\ub098\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. sin\u03b8c = n2\/n1 \uacf5\uc2dd\uc5d0\uc11c n2\uac00 n1\ubcf4\ub2e4 \ud06c\uba74 \uc6b0\ubcc0 \uac12\uc774 1\uc744 \ub118\uc5b4\ubc84\ub9ac\ub294\ub370, sin \uac12\uc740 \uc808\ub300 1\uc744 \ub118\uc744 \uc218 \uc5c6\uc73c\ub2c8 \uc784\uacc4\uac01 \uc790\uccb4\uac00 \uc874\uc7ac\ud558\uc9c0 \uc54a\ub294 \uac81\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\">\uc77c\ubc18 \uac70\uc6b8 \ubc18\uc0ac\ub294 \ucf54\ud305 \uc0c1\ud0dc\uc5d0 \ub530\ub77c \uba87 %\uc758 \ube5b \uc190\uc2e4\uc774 \uc788\uc9c0\ub9cc, \uc804\ubc18\uc0ac\ub294 \uc774\ub860\uc801\uc73c\ub85c \uc815\ud655\ud788 100% \ubc18\uc0ac\uc785\ub2c8\ub2e4. \uad11\uc12c\uc720\uac00 \uc218\uc2ed km\ub97c \uac00\ub3c4 \uc2e0\ud638\uac00 \uc720\uc9c0\ub418\ub294 \uc774\uc720\uc785\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%A7%AD_%ED%95%9C%EB%88%88%EC%97%90_%EC%A0%95%EB%A6%AC\"><\/span>\ud83e\udded \ud55c\ub208\uc5d0 \uc815\ub9ac<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc815\uc758<\/strong>: \ubc00\ud55c \ub9e4\uc9c8 \u2192 \uc18c\ud55c \ub9e4\uc9c8\ub85c \uc9c4\ud589 \uc2dc, \uc785\uc0ac\uac01\uc774 \uc784\uacc4\uac01\uc744 \ub118\uc73c\uba74 100% \ubc18\uc0ac\ub418\ub294 \ud604\uc0c1<\/li>\n\n\n\n<li><strong>\uacf5\uc2dd<\/strong>: \u03b8c = arcsin(n2 \/ n1)<\/li>\n\n\n\n<li><strong>\uc870\uac74<\/strong>: \ubc18\ub4dc\uc2dc n1 &gt; n2 (\ubc18\ub300 \ubc29\ud5a5\uc774\uba74 \uc131\ub9bd \uc548 \ud568)<\/li>\n\n\n\n<li><strong>\ub300\ud45c \uc218\uce58<\/strong>: \ubb3c-\uacf5\uae30 48.8\u00b0 \/ \uc720\ub9ac-\uacf5\uae30 41.8\u00b0 \/ \ub2e4\uc774\uc544\ubaac\ub4dc-\uacf5\uae30 24.4\u00b0<\/li>\n\n\n\n<li><strong>\ud65c\uc6a9\ucc98<\/strong>: \uad11\uc12c\uc720 \ud1b5\uc2e0, \ud504\ub9ac\uc998 \uc30d\uc548\uacbd\u00b7\uc7a0\ub9dd\uacbd, \ub3c4\uad11\ud310(LGP)<\/li>\n<\/ul>\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_%EB%B3%B4%EB%A9%B4_%EC%A2%8B%EC%9D%80_%EA%B8%80\"><\/span>\ud83d\udcda \ud568\uaed8 \ubcf4\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\/snells-law-guide\/\">\uc2a4\ub12c\uc758 \ubc95\uce59 \uc644\ubcbd\uc815\ub9ac \u2013 \ube5b\uc740 \uc65c \uaebe\uc77c\uae4c?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/steelcrucian.com\/inverse-square-cosine-law-lighting\/\">\ucf54\uc0ac\uc778 \ubc95\uce59\/\uc5ed\uc81c\uacf1 \ubc95\uce59<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc2a4\ub12c\uc758 \ubc95\uce59 \uae00\uc5d0\uc11c \ube5b\uc774 \ub9e4\uc9c8 \uacbd\uacc4\ub97c \uc9c0\ub0a0 \ub54c \uc65c \uaebe\uc774\ub294\uc9c0 \uc815\ub9ac\ud588\uc2b5\ub2c8\ub2e4. \uadf8\ub7f0\ub370 \uac01\ub3c4\ub97c \uacc4\uc18d \ud0a4\uc6b0\ub2e4 \ubcf4\uba74 \uc5b4\ub290 \uc21c\uac04\ubd80\ud130 \ube5b\uc774 \uaebe\uc774\ub294 \uac8c \uc544\ub2c8\ub77c \uc544\uc608 \ubabb \ube60\uc838\ub098\uac00\uace0 \ud295\uaca8 \ub098\uc624\ub294 \uad6c\uac04\uc774 \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \ubb3c\uc548\uacbd\uc744 \uc4f0\uace0 \ubb3c\uc18d\uc5d0\uc11c \uc218\uba74 \uc704\ub97c \uc62c\ub824\ub2e4\ubd24\uc744 \ub54c, \uc5b4\ub290 \uac01\ub3c4\ubd80\ud130\ub294 \uc218\uba74\uc774 \ub9c8\uce58 \uac70\uc6b8\ucc98\ub7fc \ud558\ub298 \ub300\uc2e0 \ubb3c\uc18d \ud48d\uacbd\ub9cc \ube44\ucdb0 \ubcf4\uc774\ub294 \ud604\uc0c1\uc744 \ubcf8 \uc801 \uc788\uc73c\uc2e4 \uac81\ub2c8\ub2e4. \ub2e4\uc774\uc544\ubaac\ub4dc\uac00 \uc720\ub09c\ud788 \ubc18\uc9dd\uc774\ub294&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":[783,73,164,784,775,774],"class_list":["post-2386","post","type-post","status-publish","format-standard","hentry","category-optics","tag-tir","tag-73","tag-164","tag-784","tag-775","tag-774"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2386","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=2386"}],"version-history":[{"count":2,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2386\/revisions"}],"predecessor-version":[{"id":2391,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/posts\/2386\/revisions\/2391"}],"wp:attachment":[{"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/media?parent=2386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/categories?post=2386"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelcrucian.com\/wp-json\/wp\/v2\/tags?post=2386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}