{"id":1470,"date":"2026-10-26T17:00:00","date_gmt":"2026-10-26T08:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1470"},"modified":"2026-10-23T17:23:04","modified_gmt":"2026-10-23T08:23:04","slug":"qs-malus-three-polarizers-20261023","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1470","title":{"rendered":"\u30de\u30ea\u30e5\u30b9\u306e\u6cd5\u5247\u3001\u504f\u5149\u677f\u3092\u9593\u306b\u4e00\u679a\u5165\u308c\u308b\u3068\u5149\u304c\u901a\u308b\u7406\u7531"},"content":{"rendered":"<p>\u4e8c\u679a\u306e\u504f\u5149\u677f\u3092\u91cd\u306d\u3001\u900f\u904e\u8ef8\u3092\u76f4\u89d2\u306b\u3059\u308b\u3068\u3001\u5411\u3053\u3046\u5074\u306f\u6697\u304f\u306a\u308a\u307e\u3059\u3002\u3068\u3053\u308d\u304c\u3001\u305d\u306e\u4e8c\u679a\u306e<strong>\u9593<\/strong>\u306b\u3001\u900f\u904e\u8ef8\u3092\u659c\u3081\u306b\u3057\u305f\u504f\u5149\u677f\u3092\u3082\u3046\u4e00\u679a\u5165\u308c\u308b\u3068\u3001\u5149\u306e\u4e00\u90e8\u304c\u901a\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u5149\u3092\u6e1b\u3089\u3059\u677f\u3092\u5897\u3084\u3057\u305f\u306e\u306b\u660e\u308b\u304f\u306a\u308b\u3001\u3053\u306e\u5909\u5316\u306f\u30de\u30ea\u30e5\u30b9\u306e\u6cd5\u5247\u3067\u8aac\u660e\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u9375\u306b\u306a\u308b\u306e\u306f\u3001\u504f\u5149\u677f\u304c\u5149\u306e\u5f37\u3055\u3060\u3051\u3067\u306a\u304f\u3001\u901a\u904e\u5f8c\u306e\u96fb\u5834\u306e\u632f\u52d5\u65b9\u5411\u3082\u6c7a\u3081\u308b\u3053\u3068\u3067\u3059\u3002\u679a\u6570\u3060\u3051\u3092\u6570\u3048\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u3069\u3093\u306a\u5411\u304d\u306e\u5149\u304c\u6b21\u306e\u677f\u3078\u5c4a\u304f\u304b\u3092\u9806\u756a\u306b\u8ffd\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n<section class=\"influvetor-quick-summary\">\n<p><strong>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f<\/strong><\/p>\n<ul>\n<li>\u30de\u30ea\u30e5\u30b9\u306e\u6cd5\u5247\u306f\u3001\u76f4\u7dda\u504f\u5149\u3068\u504f\u5149\u677f\u306e\u900f\u904e\u8ef8\u306e\u306a\u3059\u89d2\u3092\u4f7f\u3044\u3001\u901a\u904e\u3059\u308b\u5149\u306e\u5f37\u3055\u3092\u8a08\u7b97\u3059\u308b\u95a2\u4fc2\u3067\u3059\u3002<\/li>\n<li>\u76f4\u4ea4\u3059\u308b\u4e8c\u679a\u306e\u9593\u306b45\u5ea6\u306e\u677f\u3092\u7f6e\u304f\u3068\u3001\u7406\u60f3\u6761\u4ef6\u3067\u306f\u3001\u6700\u521d\u306e\u677f\u3092\u51fa\u305f\u5149\u306e25%\u304c\u6700\u5f8c\u307e\u3067\u901a\u308a\u307e\u3059\u3002\u5404\u6bb5\u968e\u3067\u5149\u304c\u5897\u3048\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<li>\u540c\u3058\u677f\u3092\u6700\u5f8c\u306e\u5f8c\u308d\u306b\u8ffd\u52a0\u3057\u3066\u3082\u52b9\u679c\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8ffd\u52a0\u3059\u308b\u4f4d\u7f6e\u3001\u5f37\u3055\u306e\u57fa\u6e96\u3001\u5b9f\u969b\u306e\u677f\u306e\u640d\u5931\u3092\u5206\u3051\u3066\u78ba\u304b\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u300c\u901a\u3059\u5411\u304d\u300d\u306f\u5149\u306e\u9032\u884c\u65b9\u5411\u3068\u306f\u5225<\/h2>\n<p>\u5149\u306b\u306f\u3001\u9032\u3080\u5411\u304d\u306b\u5bfe\u3057\u3066\u6a2a\u65b9\u5411\u306b\u632f\u52d5\u3059\u308b\u96fb\u5834\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u96fb\u5834\u304c\u4e00\u3064\u306e\u6c7a\u307e\u3063\u305f\u65b9\u5411\u306b\u6cbf\u3063\u3066\u632f\u52d5\u3059\u308b\u5149\u3092\u3001<strong>\u76f4\u7dda\u504f\u5149<\/strong>\u3068\u547c\u3073\u307e\u3059\u3002\u3053\u3053\u3067\u306e\u300c\u5411\u304d\u300d\u306f\u3001\u5149\u7dda\u304c\u53f3\u3078\u9032\u3080\u304b\u4e0a\u3078\u9032\u3080\u304b\u3067\u306f\u306a\u304f\u3001\u5149\u7dda\u3092\u6b63\u9762\u304b\u3089\u898b\u305f\u3068\u304d\u306e\u96fb\u5834\u306e\u632f\u52d5\u65b9\u5411\u3067\u3059\u3002<\/p>\n<p>\u7406\u60f3\u7684\u306a\u76f4\u7dda\u504f\u5149\u677f\u306f\u3001\u900f\u904e\u8ef8\u306b\u5e73\u884c\u306a\u96fb\u5834\u306e\u6210\u5206\u3092\u901a\u3057\u3001\u5782\u76f4\u306a\u6210\u5206\u3092\u901a\u3057\u307e\u305b\u3093\u3002\u5165\u5c04\u3059\u308b\u96fb\u5834\u306e\u632f\u5e45\u3092E\u3001\u900f\u904e\u8ef8\u3068\u306e\u89d2\u5ea6\u3092\u03b8\u3068\u3059\u308b\u3068\u3001\u901a\u308b\u6210\u5206\u306e\u632f\u5e45\u306fE cos \u03b8\u3067\u3059\u3002\u5149\u306e\u5f37\u3055\u306f\u632f\u5e45\u306e\u4e8c\u4e57\u306b\u6bd4\u4f8b\u3059\u308b\u306e\u3067\u3001\u901a\u904e\u524d\u5f8c\u306e\u5f37\u3055\u306f\u6b21\u306e\u95a2\u4fc2\u306b\u306a\u308a\u307e\u3059\u3002[1]<\/p>\n<p style=\"overflow-wrap:anywhere\"><strong>I<sub>out<\/sub> = I<sub>in<\/sub> cos\u00b2 \u03b8<\/strong><\/p>\n<p>\u3053\u308c\u304c\u30de\u30ea\u30e5\u30b9\u306e\u6cd5\u5247\u3067\u3059\u3002\u8ef8\u304c\u540c\u3058\u5411\u304d\u306a\u3089\u03b8=0\u5ea6\u3067\u5168\u3066\u901a\u308a\u3001\u76f4\u89d2\u306a\u3089\u03b8=90\u5ea6\u3067\u901a\u308a\u307e\u305b\u3093\u300245\u5ea6\u306a\u3089\u632f\u5e45\u306f\u7d040.707\u500d\u3067\u3059\u304c\u3001\u5f37\u3055\u306f\u305d\u306e\u4e8c\u4e57\u306e0.5\u500d\u3067\u3059\u3002\u300c\u632f\u5e45\u304c\u534a\u5206\u300d\u3068\u300c\u5f37\u3055\u304c\u534a\u5206\u300d\u3092\u53d6\u308a\u9055\u3048\u308b\u3068\u3001\u3053\u306e\u5148\u306e\u8a08\u7b97\u3082\u5909\u308f\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<h2>\u9593\u306b\u7f6e\u3044\u305f\u4e00\u679a\u304c\u3001\u6700\u5f8c\u3078\u5c4a\u304f\u504f\u5149\u3092\u5909\u3048\u308b<\/h2>\n<p>\u3053\u3053\u304b\u3089\u306f\u3001\u6700\u521d\u306e\u677f\u306e\u900f\u904e\u8ef8\u30920\u5ea6\u3001\u6700\u5f8c\u306e\u677f\u309290\u5ea6\u3068\u547c\u3073\u307e\u3059\u3002\u89d2\u5ea6\u306f\u540c\u3058\u57fa\u6e96\u304b\u3089\u6e2c\u308a\u307e\u3059\u3002\u307e\u305f\u3001<strong>\u6700\u521d\u306e\u677f\u3092\u901a\u3063\u305f\u76f4\u5f8c\u306e\u5f37\u3055\u3092100<\/strong>\u3068\u3057\u307e\u3059\u3002\u5143\u306e\u5149\u6e90\u306e\u5f37\u3055\u3092100\u3068\u3059\u308b\u8a08\u7b97\u3068\u306f\u3001\u57fa\u6e96\u304c\u9055\u3044\u307e\u3059\u3002<\/p>\n<p>\u9593\u306b\u4f55\u3082\u306a\u3051\u308c\u3070\u30010\u5ea6\u306e\u504f\u5149\u304c90\u5ea6\u306e\u677f\u3078\u76f4\u63a5\u5c4a\u304d\u307e\u3059\u3002\u901a\u305b\u308b\u96fb\u5834\u6210\u5206\u304c\u306a\u3044\u305f\u3081\u3001\u51fa\u529b\u306f0\u3067\u3059\u3002<\/p>\n<p>\u4e8c\u679a\u306e\u9593\u306b45\u5ea6\u306e\u677f\u3092\u7f6e\u304f\u3068\u3001\u307e\u305a0\u5ea6\u304b\u308945\u5ea6\u3078\u306e\u6bb5\u968e\u3067\u3001\u5f37\u3055\u306f100\u00d7cos\u00b245\u5ea6=50\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u901a\u3063\u305f\u5149\u306f45\u5ea6\u65b9\u5411\u306e\u76f4\u7dda\u504f\u5149\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u6700\u5f8c\u306e90\u5ea6\u306e\u677f\u304b\u3089\u898b\u308c\u3070\u3001\u5c4a\u3044\u305f\u5149\u3068\u306e\u89d2\u5ea6\u306f\u3082\u304690\u5ea6\u3067\u306f\u306a\u304f\u300145\u5ea6\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u300150\u00d7cos\u00b245\u5ea6=25\u304c\u901a\u308a\u307e\u3059\u3002<\/p>\n<p>\u8ffd\u52a0\u3057\u305f\u677f\u304c\u3001\u3082\u3068\u3082\u3068\u906e\u3089\u308c\u308b\u306f\u305a\u3060\u3063\u305f\u5149\u3092\u5358\u306b\u5897\u3084\u3057\u305f\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6700\u5f8c\u306e\u677f\u3078\u5165\u308b\u5149\u306e\u504f\u5149\u72b6\u614b\u304c\u5909\u308f\u3063\u305f\u7d50\u679c\u3001\u6700\u5f8c\u306e\u677f\u306b\u6cbf\u3063\u305f\u6210\u5206\u304c\u6b8b\u308a\u307e\u3059\u3002MIT\u306e\u8b1b\u7fa9\u8cc7\u6599\u3084\u30b3\u30ed\u30e9\u30c9\u5927\u5b66\u30dc\u30eb\u30c0\u30fc\u6821\u306e\u5b9f\u6f14\u8cc7\u6599\u3067\u3082\u3001\u3053\u306e\u4e2d\u9593\u306e\u504f\u5149\u677f\u3092\u4f7f\u3046\u69cb\u6210\u304c\u6271\u308f\u308c\u3066\u3044\u307e\u3059\u3002[1][2]<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-malus-three-polarizers-20261023-figure-fd4bb601c202.png\" alt=\"\u6700\u521d\u306e\u504f\u5149\u677f\u306e\u5f8c\u3092100\u3068\u3057\u305f\u7406\u60f3\u8a08\u7b97\u30020\u5ea6\u304b\u308990\u5ea6\u3078\u76f4\u63a5\u901a\u3059\u30680\u3002\u9593\u306b45\u5ea6\u3092\u5165\u308c\u308b\u3068100\u300150\u300125\u3068\u6e1b\u308b\u3002\u6700\u5f8c\u306e\u5f8c\u306b45\u5ea6\u3092\u52a0\u3048\u3066\u30820\u306e\u307e\u307e\u3002\" style=\"max-width:100%;height:auto\"\/><figcaption>\u6700\u521d\u306e\u677f\u3092\u51fa\u305f\u5149\u3092100\u3068\u3057\u3066\u3001\u6b21\u306b\u5c4a\u304f\u504f\u5149\u3068\u5f37\u3055\u3092\u9806\u756a\u306b\u8a08\u7b97\u3057\u305f\u6bd4\u8f03\u3002\u5404\u89d2\u5ea6\u306f\u900f\u904e\u8ef8\u306e\u5411\u304d\u3002\u7406\u60f3\u504f\u5149\u677f\u306e\u30e2\u30c7\u30eb\u304b\u3089\u4f5c\u6210\u3057\u305f\u56f3\u3067\u3001\u5b9f\u6e2c\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/figcaption><\/figure>\n<h2>45\u5ea6\u306f\u3001\u4e8c\u3064\u306e\u901a\u904e\u7387\u306e\u91e3\u308a\u5408\u3044<\/h2>\n<p>\u4e2d\u9593\u306e\u677f\u3092\u03b1\u5ea6\u306b\u3059\u308b\u3068\u3001\u305d\u306e\u677f\u3068\u306e\u89d2\u5ea6\u306f\u03b1\u3001\u6700\u5f8c\u306e\u677f\u3068\u306e\u89d2\u5ea6\u306f90\u5ea6\u2212\u03b1\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6700\u521d\u306e\u677f\u306e\u76f4\u5f8c\u3092\u57fa\u6e96\u306b\u3057\u305f\u6700\u5f8c\u306e\u5f37\u3055\u306e\u5272\u5408\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<p style=\"overflow-wrap:anywhere\"><strong>I<sub>out<\/sub> \/ I<sub>first<\/sub> = cos\u00b2 \u03b1 \u00d7 sin\u00b2 \u03b1 = \u00bc sin\u00b2(2\u03b1)<\/strong><\/p>\n<p>\u3053\u306e\u5f0f\u3092\u8a08\u7b97\u3059\u308b\u3068\u3001\u03b1\u304c30\u5ea6\u3067\u308260\u5ea6\u3067\u308218.75%\u300145\u5ea6\u306a\u308925%\u3067\u3059\u300230\u5ea6\u306e\u5834\u5408\u306f\u4e2d\u9593\u306e\u677f\u309275%\u304c\u901a\u308a\u307e\u3059\u304c\u3001\u6700\u5f8c\u306e\u677f\u3092\u901a\u308c\u308b\u5272\u5408\u306f\u305d\u306e25%\u3067\u3059\u300260\u5ea6\u3067\u306f\u9806\u5e8f\u304c\u9006\u3067\u3001\u4e2d\u9593\u309225%\u3001\u305d\u3053\u304b\u3089\u6700\u5f8c\u309275%\u304c\u901a\u308a\u307e\u3059\u3002\u3069\u3061\u3089\u30820.75\u00d70.25=0.1875\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e2d\u9593\u30920\u5ea6\u306b\u305d\u308d\u3048\u308b\u3068\u3001\u305d\u3053\u3067\u306f\u5168\u3066\u901a\u3063\u3066\u3082\u6700\u5f8c\u3067\u906e\u3089\u308c\u307e\u3059\u300290\u5ea6\u306b\u305d\u308d\u3048\u308b\u3068\u3001\u4e2d\u9593\u306e\u6642\u70b9\u3067\u906e\u3089\u308c\u307e\u3059\u30020\u5ea6\u304b\u308990\u5ea6\u306e\u7bc4\u56f2\u306745\u5ea6\u304c\u6700\u3082\u3088\u304f\u901a\u308b\u306e\u306f\u3001\u4e8c\u3064\u306e\u6bb5\u968e\u306e\u901a\u904e\u7387\u3092\u639b\u3051\u305f\u5024\u304c\u305d\u3053\u3067\u6700\u5927\u306b\u306a\u308b\u305f\u3081\u3067\u3059\u3002\u4e09\u679a\u306a\u3089\u3069\u3093\u306a\u89d2\u5ea6\u3067\u3082\u660e\u308b\u304f\u306a\u308b\u3001\u3068\u3044\u3046\u898f\u5247\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2>\u9806\u756a\u3092\u5909\u3048\u308b\u3068\u3001\u540c\u3058\u4e09\u679a\u3067\u30820\u306b\u306a\u308b<\/h2>\n<p>45\u5ea6\u306e\u677f\u3092\u4e8c\u679a\u306e<strong>\u9593\u3067\u306f\u306a\u304f\u300190\u5ea6\u306e\u677f\u306e\u5f8c\u308d<\/strong>\u306b\u7f6e\u3044\u305f\u3089\u3069\u3046\u3067\u3057\u3087\u3046\u304b\u30020\u5ea6\u304b\u308990\u5ea6\u3078\u76f4\u63a5\u901a\u3059\u6bb5\u968e\u3067\u3001\u7406\u60f3\u30e2\u30c7\u30eb\u306e\u51fa\u529b\u306f\u3059\u3067\u306b0\u3067\u3059\u3002\u5f8c\u308d\u306e\u677f\u3078\u5149\u304c\u5c4a\u304b\u306a\u3044\u306e\u3067\u3001\u305d\u306e\u677f\u3092\u56de\u3057\u3066\u30820\u306e\u307e\u307e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u6bd4\u8f03\u304b\u3089\u3001\u504f\u5149\u677f\u3092\u300c\u660e\u308b\u3055\u3092\u4e00\u5b9a\u5272\u5408\u3060\u3051\u6e1b\u3089\u3059\u90e8\u54c1\u300d\u3068\u3057\u3066\u6271\u3048\u306a\u3044\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002\u4e00\u5b9a\u5272\u5408\u306e\u6e1b\u5149\u3060\u3051\u306a\u3089\u3001\u4e09\u3064\u306e\u5272\u5408\u3092\u639b\u3051\u308b\u9806\u756a\u3092\u4ea4\u63db\u3057\u3066\u3082\u7b54\u3048\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002\u504f\u5149\u677f\u3067\u306f\u3001\u4e00\u6bb5\u3092\u901a\u308b\u3068\u96fb\u5834\u306e\u5411\u304d\u3082\u5909\u308f\u308a\u3001\u6b21\u306e\u6bb5\u306e\u901a\u904e\u7387\u304c\u305d\u308c\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u5149\u5b66\u7cfb\u3092\u6bd4\u3079\u308b\u3068\u304d\u306f\u3001\u4f7f\u3046\u90e8\u54c1\u3068\u89d2\u5ea6\u306b\u52a0\u3048\u3066\u3001\u4e26\u3079\u308b\u9806\u756a\u3082\u5fc5\u8981\u306a\u60c5\u5831\u3067\u3059\u3002<\/p>\n<h2>25%\u306e\u57fa\u6e96\u3068\u3001\u73fe\u7269\u3067\u306e\u305a\u308c<\/h2>\n<p>\u3053\u3053\u307e\u3067\u306e25%\u306f\u3001\u6700\u521d\u306e\u504f\u5149\u677f\u3092\u901a\u904e\u3057\u305f\u5f8c\u306e\u5149\u304c\u57fa\u6e96\u3067\u3059\u3002\u5143\u306e\u5149\u304c\u7121\u504f\u5149\u3067\u3001\u305d\u306e\u5f37\u3055\u3092100\u3068\u3059\u308b\u5834\u5408\u3001\u7406\u60f3\u7684\u306a\u6700\u521d\u306e\u677f\u3092\u901a\u308b\u5f37\u3055\u306f50\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u3053\u304b\u308945\u5ea6\u300190\u5ea6\u306e\u9806\u306b\u901a\u3059\u3068\u300150\u219225\u219212.5\u3067\u3059\u3002\u5143\u306e\u5149\u306b\u5bfe\u3059\u308b\u5272\u5408\u306f12.5%\u3067\u3042\u308a\u300125%\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5165\u5c04\u5149\u304c\u521d\u3081\u304b\u3089\u7279\u5b9a\u65b9\u5411\u306e\u76f4\u7dda\u504f\u5149\u306a\u3089\u3001\u6700\u521d\u306e\u6bb5\u968e\u306b\u3082\u305d\u306e\u65b9\u5411\u3068\u8ef8\u306e\u89d2\u5ea6\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u3069\u3061\u3089\u306e\u57fa\u6e96\u3067\u3082\u3001\u5149\u304c\u5404\u6bb5\u968e\u3067\u5897\u3048\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002100\u219250\u219225\u3068\u3044\u3046\u5909\u5316\u306f\u3001\u5143\u306e100\u3092\u8d85\u3048\u305a\u3001\u9014\u4e2d\u306e50\u3082\u8d85\u3048\u307e\u305b\u3093\u3002\u5897\u3048\u305f\u306e\u306f\u300c\u4e2d\u9593\u306e\u677f\u304c\u306a\u3044\u3001\u51fa\u529b0\u306e\u5225\u306e\u914d\u7f6e\u300d\u3068\u6bd4\u3079\u305f\u6700\u5f8c\u306e\u51fa\u529b\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306e\u504f\u5149\u677f\u3067\u306f\u3001\u901a\u3057\u305f\u3044\u6210\u5206\u306b\u3082\u640d\u5931\u304c\u3042\u308a\u3001\u906e\u308a\u305f\u3044\u6210\u5206\u304c\u5b8c\u5168\u306b\u306f\u6d88\u3048\u306a\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002MIT\u306e\u8cc7\u6599\u3082\u3001\u76f4\u4ea4\u3055\u305b\u305f\u5b9f\u7269\u306e\u900f\u904e\u304c\u53b3\u5bc6\u306a0\u306b\u306a\u3089\u306a\u3044\u3053\u3068\u3092\u533a\u5225\u3057\u3066\u3044\u307e\u3059\u3002[1] \u3057\u305f\u304c\u3063\u3066\u3001\u3053\u3053\u3067\u8a08\u7b97\u3057\u305f25%\u308412.5%\u3092\u3001\u624b\u5143\u306e\u504f\u5149\u677f\u306e\u6027\u80fd\u4fdd\u8a3c\u3068\u3057\u3066\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002<\/p>\n<p>\u6bd4\u8f03\u3059\u308b\u3068\u304d\u306f\u3001\u540c\u3058\u5149\u6e90\u30fb\u53d7\u5149\u6761\u4ef6\u3067\u3001\u6700\u521d\u306e\u677f\u306e\u76f4\u5f8c\u3068\u3001\u5404\u914d\u7f6e\u306e\u6700\u5f8c\u306e\u5f37\u3055\u3092\u5206\u3051\u3066\u8a18\u9332\u3057\u307e\u3059\u3002\u677f\u306e\u91cd\u306a\u3063\u3066\u3044\u306a\u3044\u90e8\u5206\u3092\u5149\u304c\u901a\u308a\u629c\u3051\u308c\u3070\u3001\u305d\u308c\u3082\u6e2c\u5b9a\u306b\u6df7\u3056\u308a\u307e\u3059\u3002\u30b3\u30ed\u30e9\u30c9\u5927\u5b66\u306e\u5b9f\u6f14\u5199\u771f\u306b\u306f\u3001\u4e8c\u679a\u304c\u91cd\u306a\u3089\u306a\u3044\u90e8\u5206\u306e\u660e\u308b\u3044\u5e2f\u3068\u3001\u504f\u5149\u677f\u3092\u901a\u3063\u305f\u9818\u57df\u3092\u533a\u5225\u3057\u305f\u8aac\u660e\u304c\u3042\u308a\u307e\u3059\u3002[2] \u6697\u3044\u914d\u7f6e\u3067\u3082\u6b8b\u308b\u5149\u304c\u3001\u504f\u5149\u677f\u306e\u6f0f\u308c\u306a\u306e\u304b\u3001\u677f\u306e\u5916\u3092\u901a\u3063\u305f\u5149\u306a\u306e\u304b\u3092\u5206\u3051\u308b\u3053\u3068\u304c\u3001\u5f0f\u3068\u73fe\u7269\u3092\u6bd4\u3079\u308b\u5165\u53e3\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u51fa\u5178<\/h2>\n<ol>\n<li>MIT OpenCourseWare, 6.007 Electromagnetic Energy: From Motors to Lasers, Spring 2011, Lecture 24: Polarized light and polarizers, pp.14\u201316\uff08Crossed Polarizers\u3001Malus\u2019 law\u3001Polarizer Puzzle\uff09\u3002<a href=\"https:\/\/ocw.mit.edu\/courses\/6-007-electromagnetic-energy-from-motors-to-lasers-spring-2011\/fddc50383103d417aac29bd02d473003_MIT6_007S11_lec24.pdf\">\u8b1b\u7fa9\u8cc7\u6599PDF<\/a><\/li>\n<li>University of Colorado Boulder, Physics Undergraduate Labs, Polaroid Sheets\uff082026\u5e743\u670827\u65e5\u66f4\u65b0\u3001Purpose\u3068Figures 1\u20134\uff09\u3002<a href=\"https:\/\/physicslabs.colorado.edu\/demos\/optics\/polarization\/dichroic-polarization\/polaroid-sheets\/\">\u5b9f\u6f14\u8cc7\u6599<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u4e8c\u679a\u306e\u504f\u5149\u677f\u3092\u91cd\u306d\u3001\u900f\u904e\u8ef8\u3092\u76f4\u89d2\u306b\u3059\u308b\u3068\u3001\u5411\u3053\u3046\u5074\u306f\u6697\u304f\u306a\u308a\u307e\u3059\u3002\u3068\u3053\u308d\u304c\u3001\u305d\u306e\u4e8c\u679a\u306e\u9593\u306b\u3001\u900f\u904e\u8ef8\u3092\u659c\u3081\u306b\u3057\u305f\u504f\u5149\u677f\u3092\u3082\u3046\u4e00\u679a\u5165\u308c\u308b\u3068\u3001\u5149\u306e\u4e00\u90e8\u304c\u901a\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u5149\u3092\u6e1b\u3089\u3059\u677f\u3092\u5897\u3084\u3057\u305f\u306e\u306b\u660e\u308b\u304f\u306a\u308b\u3001\u3053\u306e\u5909\u5316\u306f\u30de\u30ea\u30e5 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1468,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[34],"tags":[292],"class_list":["post-1470","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materials-manufacturing","tag-malus-law"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-malus-three-polarizers-20261023-featured-b4be9e95de61.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1470"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1470\/revisions"}],"predecessor-version":[{"id":1471,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1470\/revisions\/1471"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1468"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}