{"id":9294,"date":"2026-03-12T13:51:14","date_gmt":"2026-03-12T06:51:14","guid":{"rendered":"https:\/\/archives.mju.ac.th\/?p=9294"},"modified":"2026-03-12T15:22:28","modified_gmt":"2026-03-12T08:22:28","slug":"overhead-projector-2","status":"publish","type":"post","link":"https:\/\/archives.mju.ac.th\/?p=9294","title":{"rendered":"\u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e09\u0e32\u0e22\u0e02\u0e49\u0e32\u0e21\u0e28\u0e35\u0e23\u0e29\u0e30 (Overhead Projector)"},"content":{"rendered":"\n<div class=\"sketchfab-embed-wrapper\"> \n<iframe \ntitle=\"\u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e09\u0e32\u0e22\u0e02\u0e49\u0e32\u0e21\u0e28\u0e35\u0e23\u0e29\u0e30 (Overhead Projector)\" \nwidth=\"100%\" \nheight=\"700\" \nframeborder=\"0\" \nallowfullscreen \nmozallowfullscreen=\"true\" \nwebkitallowfullscreen=\"true\" \nallow=\"autoplay; fullscreen; xr-spatial-tracking\" \nxr-spatial-tracking \nexecution-while-out-of-viewport \nexecution-while-not-rendered \nweb-share \nsrc=\"https:\/\/sketchfab.com\/models\/789189c3df3c49c987b1f5d694dbf7a1\/embed?autospin=1&#038;autostart=1&#038;preload=1&#038;transparent=1\">\n<\/iframe>\n\n<p style=\"font-size: 13px; font-weight: normal; margin: 5px; color: #4A4A4A;\">\n<a href=\"https:\/\/sketchfab.com\/3d-models\/overhead-projector-789189c3df3c49c987b1f5d694dbf7a1?utm_medium=embed&#038;utm_campaign=share-popup&#038;utm_content=789189c3df3c49c987b1f5d694dbf7a1\" target=\"_blank\" rel=\"nofollow noopener\" style=\"font-weight: bold; color: #1CAAD9;\">\n\u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e09\u0e32\u0e22\u0e02\u0e49\u0e32\u0e21\u0e28\u0e35\u0e23\u0e29\u0e30 (Overhead Projector)\n<\/a> \nby \n<a href=\"https:\/\/sketchfab.com\/mjuarchives?utm_medium=embed&#038;utm_campaign=share-popup&#038;utm_content=789189c3df3c49c987b1f5d694dbf7a1\" target=\"_blank\" rel=\"nofollow noopener\" style=\"font-weight: bold; color: #1CAAD9;\">\nMaejo University Archives\n<\/a> \non \n<a href=\"https:\/\/sketchfab.com\" target=\"_blank\" rel=\"nofollow noopener\" style=\"font-weight: bold; color: #1CAAD9;\">\nSketchfab\n<\/a>\n<\/p>\n<\/div>\n\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u0e20\u0e32\u0e29\u0e32\u0e44\u0e17\u0e22<\/p>\n\n\n\n<p><strong>\u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e09\u0e32\u0e22\u0e02\u0e49\u0e32\u0e21\u0e28\u0e35\u0e23\u0e29<\/strong>\u0e30 \u0e04\u0e37\u0e2d\u0e2d\u0e38\u0e1b\u0e01\u0e23\u0e13\u0e4c\u0e17\u0e35\u0e48\u0e43\u0e0a\u0e49\u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e09\u0e32\u0e22\u0e20\u0e32\u0e1e\u0e2b\u0e23\u0e37\u0e2d\u0e02\u0e49\u0e2d\u0e04\u0e27\u0e32\u0e21\u0e08\u0e32\u0e01 \u0e41\u0e1c\u0e48\u0e19\u0e43\u0e2a \u0e02\u0e36\u0e49\u0e19\u0e2a\u0e39\u0e48\u0e08\u0e2d\u0e23\u0e31\u0e1a\u0e20\u0e32\u0e1e\u0e02\u0e19\u0e32\u0e14\u0e43\u0e2b\u0e0d\u0e48\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e43\u0e2b\u0e49\u0e1c\u0e39\u0e49\u0e0a\u0e21\u0e08\u0e33\u0e19\u0e27\u0e19\u0e21\u0e32\u0e01\u0e21\u0e2d\u0e07\u0e40\u0e2b\u0e47\u0e19\u0e44\u0e14\u0e49\u0e1e\u0e23\u0e49\u0e2d\u0e21\u0e01\u0e31\u0e19 \u0e2b\u0e25\u0e31\u0e01\u0e01\u0e32\u0e23\u0e17\u0e33\u0e07\u0e32\u0e19\u0e04\u0e37\u0e2d\u0e43\u0e0a\u0e49\u0e2b\u0e25\u0e2d\u0e14\u0e44\u0e1f\u0e08\u0e32\u0e01\u0e10\u0e32\u0e19\u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e2a\u0e48\u0e2d\u0e07\u0e1c\u0e48\u0e32\u0e19\u0e41\u0e1c\u0e48\u0e19\u0e43\u0e2a\u0e1a\u0e19\u0e01\u0e23\u0e30\u0e08\u0e01 \u0e08\u0e32\u0e01\u0e19\u0e31\u0e49\u0e19\u0e41\u0e2a\u0e07\u0e08\u0e30\u0e1c\u0e48\u0e32\u0e19\u0e0a\u0e38\u0e14\u0e40\u0e25\u0e19\u0e2a\u0e4c\u0e41\u0e25\u0e30\u0e01\u0e23\u0e30\u0e08\u0e01\u0e40\u0e07\u0e32\u0e17\u0e35\u0e48\u0e2a\u0e48\u0e27\u0e19\u0e2b\u0e31\u0e27\u0e02\u0e2d\u0e07\u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07 \u0e41\u0e25\u0e49\u0e27\u0e2a\u0e30\u0e17\u0e49\u0e2d\u0e19\u0e20\u0e32\u0e1e\u0e44\u0e1b\u0e22\u0e31\u0e07\u0e09\u0e32\u0e01\u0e14\u0e49\u0e32\u0e19\u0e2b\u0e19\u0e49\u0e32 \u0e2d\u0e38\u0e1b\u0e01\u0e23\u0e13\u0e4c\u0e19\u0e35\u0e49\u0e40\u0e04\u0e22\u0e44\u0e14\u0e49\u0e23\u0e31\u0e1a\u0e04\u0e27\u0e32\u0e21\u0e19\u0e34\u0e22\u0e21\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e21\u0e32\u0e01\u0e43\u0e19\u0e2a\u0e16\u0e32\u0e19\u0e28\u0e36\u0e01\u0e29\u0e32\u0e41\u0e25\u0e30\u0e2b\u0e49\u0e2d\u0e07\u0e1b\u0e23\u0e30\u0e0a\u0e38\u0e21 \u0e40\u0e1e\u0e23\u0e32\u0e30\u0e1c\u0e39\u0e49\u0e2a\u0e2d\u0e19\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e40\u0e02\u0e35\u0e22\u0e19\u0e2b\u0e23\u0e37\u0e2d\u0e27\u0e32\u0e14\u0e20\u0e32\u0e1e\u0e25\u0e07\u0e1a\u0e19\u0e41\u0e1c\u0e48\u0e19\u0e43\u0e2a\u0e23\u0e30\u0e2b\u0e27\u0e48\u0e32\u0e07\u0e01\u0e32\u0e23\u0e1a\u0e23\u0e23\u0e22\u0e32\u0e22\u0e44\u0e14\u0e49<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>English<\/p>\n\n\n\n<p><strong>An overhead projector<\/strong>&nbsp;is a device used to project images or text from transparent sheets onto a large screen so that many viewers can see them at the same time. It works by shining a light from the base of the machine through a transparency placed on a glass stage. The light then passes through a lens and mirror system at the top of the projector and reflects the image onto a screen in front of the presenter. This device was widely used in classrooms and meeting rooms before modern digital projectors.<\/p><p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e09\u0e32\u0e22\u0e02\u0e49\u0e32\u0e21\u0e28\u0e35\u0e23\u0e29\u0e30 (Overhead Projector) by Maejo University Archives on Sketchfab \u0e20\u0e32\u0e29\u0e32\u0e44\u0e17\u0e22 \u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e09\u0e32\u0e22\u0e02\u0e49\u0e32\u0e21\u0e28\u0e35\u0e23\u0e29\u0e30 \u0e04\u0e37\u0e2d\u0e2d\u0e38\u0e1b\u0e01\u0e23\u0e13\u0e4c\u0e17\u0e35\u0e48\u0e43\u0e0a\u0e49\u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e09\u0e32\u0e22\u0e20\u0e32\u0e1e\u0e2b\u0e23\u0e37\u0e2d\u0e02\u0e49\u0e2d\u0e04\u0e27\u0e32\u0e21\u0e08\u0e32\u0e01 \u0e41\u0e1c\u0e48\u0e19\u0e43\u0e2a 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\u0e40\u0e1e\u0e23\u0e32\u0e30\u0e1c\u0e39\u0e49\u0e2a\u0e2d\u0e19\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e40\u0e02\u0e35\u0e22\u0e19\u0e2b\u0e23\u0e37\u0e2d\u0e27\u0e32\u0e14\u0e20\u0e32\u0e1e\u0e25\u0e07\u0e1a\u0e19\u0e41\u0e1c\u0e48\u0e19\u0e43\u0e2a\u0e23\u0e30\u0e2b\u0e27\u0e48\u0e32\u0e07\u0e01\u0e32\u0e23\u0e1a\u0e23\u0e23\u0e22\u0e32\u0e22\u0e44\u0e14\u0e49 English An overhead projector&nbsp;is a device used to project images or 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