{"id":209251,"date":"2024-03-21T14:06:52","date_gmt":"2024-03-21T14:06:52","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e5%85%89%e3%83%95%e3%82%a1%e3%82%a4%e3%83%90%e3%83%bc%e3%81%ae%e6%95%b0%e5%80%a4%e9%96%8b%e5%8f%a3-%e6%96%b9%e7%a8%8b%e5%bc%8f%e3%81%a8%e5%bf%9c%e7%94%a8\/"},"modified":"2024-05-17T15:09:32","modified_gmt":"2024-05-17T15:09:32","slug":"%e5%85%89%e3%83%95%e3%82%a1%e3%82%a4%e3%83%90%e3%83%bc%e3%81%ae%e6%95%b0%e5%80%a4%e9%96%8b%e5%8f%a3-%e6%96%b9%e7%a8%8b%e5%bc%8f%e3%81%a8%e5%bf%9c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e5%85%89%e3%83%95%e3%82%a1%e3%82%a4%e3%83%90%e3%83%bc%e3%81%ae%e6%95%b0%e5%80%a4%e9%96%8b%e5%8f%a3-%e6%96%b9%e7%a8%8b%e5%bc%8f%e3%81%a8%e5%bf%9c%e7%94%a8\/","title":{"rendered":"\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u6570\u5024\u958b\u53e3 | \u65b9\u7a0b\u5f0f\u3068\u5fdc\u7528"},"content":{"rendered":"<p class=\"sidekick\">\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u6570\u5024\u958b\u53e3\uff08NA\uff09\u3068\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u304c\u53d7\u3051\u5165\u308c\u308b\u5149\u306e\u89d2\u5ea6\u7bc4\u56f2\u3092\u793a\u3057\u3001\u5149\u4f1d\u9001\u306e\u52b9\u7387\u3084\u6027\u80fd\u8a55\u4fa1\u306b\u91cd\u8981\u306a\u6307\u6a19\u3067\u3059\u3002<\/p>\n<h2>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u6570\u5024\u958b\u53e3 | \u65b9\u7a0b\u5f0f\u3068\u5fdc\u7528<\/h2>\n<p>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306f\u3001\u5149\u3092\u52b9\u7387\u7684\u306b\u4f1d\u9001\u3059\u308b\u305f\u3081\u306e\u6280\u8853\u3068\u3057\u3066\u3001\u60c5\u5831\u901a\u4fe1\u304b\u3089\u533b\u7642\u307e\u3067\u5e45\u5e83\u3044\u5206\u91ce\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u6027\u80fd\u3092\u8a55\u4fa1\u3059\u308b\u91cd\u8981\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u4e00\u3064\u304c\u300c\u6570\u5024\u958b\u53e3\uff08Numerical Aperture: NA\uff09\u300d\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u6570\u5024\u958b\u53e3\u306e\u57fa\u672c\u7684\u306a\u65b9\u7a0b\u5f0f\u3068\u305d\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h2>\u6570\u5024\u958b\u53e3\uff08NA\uff09\u3068\u306f\uff1f<\/h2>\n<p>\u6570\u5024\u958b\u53e3\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u304c\u53d7\u3051\u5165\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u5149\u306e\u89d2\u5ea6\u7bc4\u56f2\u3092\u793a\u3059\u6307\u6a19\u3067\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u30b3\u30a2\uff08\u4e2d\u5fc3\u90e8\u5206\uff09\u306b\u5165\u5c04\u3067\u304d\u308b\u5149\u306e\u6700\u5927\u89d2\u5ea6\u3092\u6570\u5b66\u7684\u306b\u8868\u73fe\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u304c\u3069\u308c\u3060\u3051\u52b9\u7387\u7684\u306b\u5149\u3092\u96c6\u3081\u3066\u5c0e\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<h2>\u6570\u5024\u958b\u53e3\u306e\u65b9\u7a0b\u5f0f<\/h2>\n<p>\u6570\u5024\u958b\u53e3\uff08NA\uff09\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6570\u5b66\u7684\u8868\u73fe\u3067\u793a\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\n\\[<br \/>\nNA = n_0 \\sin(\\theta_0)<br \/>\n\\]\n<\/p>\n<p>\u3053\u3053\u3067\u3001<\/p>\n<ul>\n<li>\\( n_0 \\) \uff1a\u30d5\u30a1\u30a4\u30d0\u30fc\u5916\u90e8\u306e\u5c48\u6298\u7387\uff08\u901a\u5e38\u306f\u7a7a\u6c17\u306e\u5c48\u6298\u7387\u3067\u7d041\uff09<\/li>\n<li>\\( \\theta_0 \\) \uff1a\u5165\u5c04\u5149\u306e\u6700\u5927\u89d2\u5ea6<\/li>\n<\/ul>\n<p>\u3055\u3089\u306b\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u30b3\u30a2\u3068\u30af\u30e9\u30c3\u30c9\u306e\u5c48\u6298\u7387\u3092\u7528\u3044\u3066\u3001\u6b21\u306e\u95a2\u4fc2\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\uff1a<\/p>\n<p>\n\\[<br \/>\nNA = \\sqrt{n_1^2 &#8211; n_2^2}<br \/>\n\\]\n<\/p>\n<p>\u3053\u3053\u3067\u3001<\/p>\n<ul>\n<li>\\( n_1 \\) \uff1a\u30b3\u30a2\u306e\u5c48\u6298\u7387<\/li>\n<li>\\( n_2 \\) \uff1a\u30af\u30e9\u30c3\u30c9\u306e\u5c48\u6298\u7387<\/li>\n<\/ul>\n<h2>\u6570\u5024\u958b\u53e3\u306e\u5fdc\u7528<\/h2>\n<p>\u6570\u5024\u958b\u53e3\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u6027\u80fd\u3084\u305d\u306e\u9069\u7528\u7bc4\u56f2\u3092\u6c7a\u5b9a\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u305d\u306e\u3044\u304f\u3064\u304b\u306e\u5fdc\u7528\u4f8b\u3092\u6319\u3052\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u901a\u4fe1\u901f\u5ea6\u3068\u5e2f\u57df\u5e45\uff1a<\/strong>\u9ad8\u3044\u6570\u5024\u958b\u53e3\u3092\u6301\u3064\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306f\u3001\u3088\u308a\u5927\u304d\u306a\u5e2f\u57df\u5e45\u3092\u63d0\u4f9b\u3067\u304d\u3001\u591a\u304f\u306e\u30c7\u30fc\u30bf\u3092\u9ad8\u901f\u3067\u4f1d\u9001\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u63a5\u7d9a\u306e\u52b9\u7387\u6027\uff1a<\/strong>\u6570\u5024\u958b\u53e3\u304c\u9ad8\u3044\u3068\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u540c\u58eb\u3092\u63a5\u7d9a\u3059\u308b\u3068\u304d\u306b\u3088\u308a\u5927\u304d\u306a\u89d2\u5ea6\u3067\u5149\u3092\u52b9\u7387\u7684\u306b\u5c0e\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u63a5\u7d9a\u6642\u306e\u640d\u5931\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u533b\u7642\u7528\u30a4\u30e1\u30fc\u30b8\u30f3\u30b0\uff1a<\/strong>\u5185\u8996\u93e1\u306a\u3069\u306e\u533b\u7642\u6a5f\u5668\u3067\u306f\u3001\u6570\u5024\u958b\u53e3\u306e\u5927\u304d\u3055\u304c\u89e3\u50cf\u5ea6\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002\u9ad8\u3044\u6570\u5024\u958b\u53e3\u306f\u3001\u3088\u308a\u9bae\u660e\u306a\u753b\u50cf\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u6570\u5024\u958b\u53e3\uff08NA\uff09\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u304c\u53d6\u308a\u6271\u3046\u5149\u306e\u89d2\u5ea6\u5e45\u3092\u793a\u3057\u3001\u305d\u306e\u52b9\u7387\u3084\u6027\u80fd\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u6307\u6a19\u3067\u3059\u3002\u65b9\u7a0b\u5f0f\u3092\u901a\u3058\u3066\u305d\u306e\u5177\u4f53\u7684\u306a\u6570\u5024\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3069\u306e\u3088\u3046\u306b\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u304c\u52d5\u4f5c\u3057\u3066\u3044\u308b\u306e\u304b\u3001\u3069\u306e\u5206\u91ce\u3067\u3069\u306e\u3088\u3046\u306b\u5fdc\u7528\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3092\u8a73\u3057\u304f\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u6280\u8853\u3068\u6570\u5024\u958b\u53e3\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3059\u308c\u3070\u3001\u65e5\u5e38\u751f\u6d3b\u3084\u7523\u696d\u306e\u4e2d\u3067\u3069\u306e\u3088\u3046\u306b\u5149\u304c\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u306e\u6d1e\u5bdf\u304c\u6df1\u307e\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u6570\u5024\u958b\u53e3\uff08NA\uff09\u3068\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u304c\u53d7\u3051\u5165\u308c\u308b\u5149\u306e\u89d2\u5ea6\u7bc4\u56f2\u3092\u793a\u3057\u3001\u5149\u4f1d\u9001\u306e\u52b9\u7387\u3084\u6027\u80fd\u8a55\u4fa1\u306b\u91cd\u8981\u306a\u6307\u6a19\u3067\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[96],"tags":[97],"class_list":["post-209251","post","type-post","status-publish","format-standard","hentry","category-96","tag-97","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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