{"id":5344,"date":"2015-07-07T16:25:07","date_gmt":"2015-07-07T09:25:07","guid":{"rendered":"http:\/\/3229.congtythietkewebuytin.com\/?p=5344"},"modified":"2016-01-18T13:41:43","modified_gmt":"2016-01-18T06:41:43","slug":"den-led-buoc-dot-pha-trong-cong-nghe-chieu-sang","status":"publish","type":"post","link":"https:\/\/phuonggia.chiliweb.org\/en\/tieng-viet-den-led-buoc-dot-pha-trong-cong-nghe-chieu-sang\/","title":{"rendered":"LEDs &#8211; a breakthrough in lighting technology"},"content":{"rendered":"<div class=\"title_news\">\n<h1>\u0110\u00e8n LED &#8211; b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 trong c\u00f4ng ngh\u1ec7 chi\u1ebfu s\u00e1ng<\/h1>\n<\/div>\n<div id=\"left_calculator\">\n<div class=\"fck_detail width_common\">\n<p class=\"Normal\" style=\"text-align: justify;\">Gi\u1ea3i th\u01b0\u1edfng Nobel V\u1eadt l\u00fd 2014 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 h\u00f4m 7\/10\/2014, t\u00f4n vinh ph\u00e1t minh c\u00e1c \u0111i\u1ed1t ph\u00e1t quang LED (Light Emitting Diode) xanh d\u01b0\u01a1ng, c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra c\u00e1c ngu\u1ed3n \u00e1nh s\u00e1ng tr\u1eafng ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 s\u00e1ng h\u01a1n. C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u01b0\u1ee3c vinh danh l\u00e0 Isamu Akasaki, Hiroshi Amano v\u00e0 Shuji Nakamura.<\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">Ph\u00e1t minh LED xanh d\u01b0\u01a1ng c\u00f3 t\u1eeb nh\u1eefng n\u0103m 1990, \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 c\u00f3 vai tr\u00f2 kh\u00f4ng nh\u1ecf trong vi\u1ec7c t\u1ea1o ra \u00e1nh s\u00e1ng tr\u1eafng theo m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c ho\u00e0n to\u00e0n m\u1edbi, \u0111em l\u1ea1i l\u1ee3i \u00edch cho con ng\u01b0\u1eddi.<\/p>\n<table class=\"tplCaption\" style=\"height: 420px;\" border=\"0\" width=\"639\" cellspacing=\"0\" cellpadding=\"3\" align=\"center\">\n<tbody>\n<tr>\n<td><img class=\" aligncenter\" src=\"http:\/\/m.f29.img.vnecdn.net\/2014\/10\/09\/led-physics-nobel-prize-01-844-7040-4261-1412828928.jpg\" alt=\"led-physics-nobel-prize-01-844-7040-4261\" data-pwidth=\"470.4\" data-width=\"500\" data-natural-width=\"500\" \/><\/td>\n<\/tr>\n<tr>\n<td>\n<p class=\"Image\" style=\"text-align: center;\">\u00c1nh s\u00e1ng \u0111\u00e8n LED \u1edf th\u1ee7 \u0111\u00f4 Tokyo, Nh\u1eadt B\u1ea3n. \u1ea2nh: <em>Reuters.<\/em><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"subtitle\"><strong>Th\u1eafp s\u00e1ng th\u1ebf gi\u1edbi<\/strong><\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">Th\u1eddi xa x\u01b0a, con ng\u01b0\u1eddi ph\u1ea3i s\u1eed d\u1ee5ng l\u1eeda \u0111\u1ec3 t\u1ea1o ra ngu\u1ed3n s\u00e1ng. T\u1eeb th\u1ebf k\u1ef7 19, ph\u01b0\u01a1ng ph\u00e1p d\u00f9ng \u0111\u00e8n kh\u00ed tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn v\u00e0 sau \u0111\u00f3 l\u00e0 b\u00f3ng \u0111\u00e8n d\u00e2y t\u00f3c c\u1ee7a Thomas Edison. Ng\u00e0y nay, ch\u00fang ta c\u00f3 b\u00f3ng \u0111\u00e8n hu\u1ef3nh quang v\u00e0 \u0111\u00e8n hu\u1ef3nh quang compact (CFL). Nh\u1eefng c\u00f4ng ngh\u1ec7 n\u00e0y gi\u00fap nhi\u1ec1u ng\u01b0\u1eddi \u0111\u01b0\u1ee3c ti\u1ebfp c\u1eadn v\u1edbi \u00e1nh s\u00e1ng h\u01a1n, trong khi c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng h\u01a1n so v\u1edbi tr\u01b0\u1edbc \u0111\u00e2y.<\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">LED \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t th\u1ebf h\u1ec7 c\u00f4ng ngh\u1ec7 chi\u1ebfu s\u00e1ng m\u1edbi. So v\u1edbi b\u00f3ng \u0111\u00e8n CFL v\u00e0 b\u00f3ng \u0111\u00e8n d\u00e2y t\u00f3c, \u0111\u00e8n LED c\u00f3 hi\u1ec7u qu\u1ea3 h\u01a1n l\u1ea7n l\u01b0\u1ee3t g\u1ea5p 4 l\u1ea7n v\u00e0 15 l\u1ea7n. So v\u1edbi b\u00f3ng \u0111\u00e8n hu\u1ef3nh quang, n\u00f3 ti\u00eau th\u1ee5 \u00edt n\u0103ng l\u01b0\u1ee3ng h\u01a1n v\u00e0 kh\u00f4ng ch\u1ee9a th\u1ee7y ng\u00e2n \u0111\u1ed9c h\u1ea1i.<\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">Kh\u00f4ng ch\u1ec9 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, lo\u1ea1i \u0111\u00e8n n\u00e0y c\u00f2n c\u00f3 tu\u1ed5i th\u1ecd k\u00e9o d\u00e0i, g\u1ea5p kho\u1ea3ng 30 l\u1ea7n so v\u1edbi b\u00f3ng \u0111\u00e8n s\u1ee3i \u0111\u1ed1t. Nhi\u1ec1u b\u00f3ng \u0111\u00e8n LED c\u00f3 tu\u1ed5i th\u1ecd 25.000 gi\u1edd, t\u1ee9c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 17 n\u0103m s\u1eed d\u1ee5ng n\u1ebfu d\u00f9ng \u0111\u1ec3 chi\u1ebfu s\u00e1ng 4 gi\u1edd m\u1ed7i ng\u00e0y.<\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">Quay tr\u1edf l\u1ea1i nh\u1eefng n\u0103m 1980, khi \u0111i\u1ed1t ch\u1ec9 c\u00f3 th\u1ec3 ph\u00e1t quang \u0111\u1ecf v\u00e0 xanh l\u00e1, \u00e1nh s\u00e1ng kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 th\u1eafp s\u00e1ng m\u1ed9t c\u0103n ph\u00f2ng. Nh\u01b0ng ch\u1ec9 10 n\u0103m sau \u0111\u00f3, v\u1edbi vi\u1ec7c ph\u00e1t tri\u1ec3n LED xanh d\u01b0\u01a1ng c\u1ee7a Nakamura d\u1ef1a tr\u00ean nghi\u00ean c\u1ee9u tr\u01b0\u1edbc \u0111\u00f3 c\u1ee7a Akasaki v\u00e0 Amano, s\u1ef1 k\u1ebft h\u1ee3p n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra ngu\u1ed3n \u00e1nh s\u00e1ng tr\u1eafng hi\u1ec7u qu\u1ea3 h\u01a1n nhi\u1ec1u l\u1ea7n.<\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">K\u1ec3 t\u1eeb \u0111\u00f3, \u0111\u00e8n LED d\u1ea7n tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i h\u01a1n, t\u1eeb \u00e1nh s\u00e1ng \u0111\u01b0\u1eddng ph\u1ed1, \u0111\u00e8n giao th\u00f4ng, \u0111\u1ebfn m\u00e0n h\u00ecnh m\u00e1y t\u00ednh hay \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh. Th\u00f4ng b\u00e1o c\u1ee7a Vi\u1ec7n H\u00e0n l\u00e2m Khoa h\u1ecdc ho\u00e0ng gia Th\u1ee5y \u0110i\u1ec3n cho hay, ph\u00e1t minh n\u00e0y \u0111\u00e1nh d\u1ea5u s\u1ef1 ra \u0111\u1eddi c\u1ee7a c\u00f4ng ngh\u1ec7 c\u00f3 th\u1ec3 thay \u0111\u1ed5i th\u1ebf gi\u1edbi<\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">H\u01a1n 1,5 t\u1ef7 ng\u01b0\u1eddi tr\u00ean th\u1ebf gi\u1edbi hi\u1ec7n nay ch\u01b0a \u0111\u01b0\u1ee3c ti\u1ebfp c\u1eadn v\u1edbi c\u00e1c m\u1ea1ng l\u01b0\u1edbi \u0111i\u1ec7n. V\u00ec kh\u00f4ng c\u00f3 \u0111i\u1ec7n, nhi\u1ec1u h\u1ed9 gia \u0111\u00ecnh v\u1eabn ph\u1ea3i \u0111\u1ed1t c\u1ee7i hay s\u1eed d\u1ee5ng kh\u00ed \u0111\u1ec3 th\u1eafp s\u00e1ng. \u0110i\u1ec1u n\u00e0y kh\u00f4ng nh\u1eefng kh\u00f4ng hi\u1ec7u qu\u1ea3 m\u00e0 th\u1eadm ch\u00ed c\u00f2n g\u00e2y \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed trong nh\u00e0 v\u00e0 d\u1eabn t\u1edbi t\u1eed vong. S\u1ef1 thi\u1ebfu th\u1ed1n \u0111\u00f3 c\u00f2n g\u00e2y kh\u00f3 kh\u0103n cho nhi\u1ec1u \u0111\u1ee9a tr\u1ebb \u1edf \u0111\u1ed9 tu\u1ed5i \u0111\u1ebfn tr\u01b0\u1eddng.<\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">\u0110\u00e8n LED th\u01b0\u1eddng c\u00f3 m\u1ee9c \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u cao h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i b\u00f3ng \u0111\u00e8n kh\u00e1c. Tuy nhi\u00ean, gi\u00e1 c\u1ee7a n\u00f3 li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c gi\u1ea3m theo th\u1eddi gian v\u00e0 d\u1ef1 ki\u1ebfn xu\u1ed1ng m\u1ee9c \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i \u1edf c\u00e1c n\u01b0\u1edbc ngh\u00e8o. Vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u00e8n LED c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed9c s\u1ed1ng c\u1ee7a h\u1ecd.<\/p>\n<table class=\"tplCaption\" border=\"0\" cellspacing=\"0\" cellpadding=\"3\" align=\"center\">\n<tbody>\n<tr>\n<td><img class=\" aligncenter\" src=\"http:\/\/m.f29.img.vnecdn.net\/2014\/10\/09\/Screen-Shot-2014-10-07-at-11-0-7983-2997-1412828928.png\" alt=\"Screen-Shot-2014-10-07-at-11-0-7983-2997\" data-pwidth=\"470.4\" data-width=\"500\" data-natural-width=\"500\" \/><\/td>\n<\/tr>\n<tr>\n<td>\n<p class=\"Image\" style=\"text-align: center;\">So s\u00e1nh hi\u1ec7u qu\u1ea3 chi\u1ebfu s\u00e1ng c\u1ee7a \u0111\u00e8n LED v\u1edbi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1eeb th\u1eddi x\u01b0a \u0111\u1ebfn th\u1ebf k\u1ef7 21.<\/p>\n<p class=\"Image\" style=\"text-align: center;\">\u1ea2nh: Royal <em>Swedish Academy of Sciences.<\/em><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"subtitle\"><strong>H\u1ea1n ch\u1ebf \u1ea3nh h\u01b0\u1edfng c\u1ee7a n\u00f3ng l\u00ean to\u00e0n c\u1ea7u<\/strong><\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">Theo c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u, chi\u1ebfu s\u00e1ng l\u00e0 ho\u1ea1t \u0111\u1ed9ng ti\u00eau t\u1ed1n nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng, \u01b0\u1edbc t\u00ednh kho\u1ea3ng 17% l\u01b0\u1ee3ng \u0111i\u1ec7n ti\u00eau th\u1ee5 t\u00ednh ri\u00eang \u1edf M\u1ef9. L\u1ee3i \u00edch ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng m\u00e0 \u0111\u00e8n LED c\u00f3 th\u1ec3 mang l\u1ea1i \u0111\u1eb7c bi\u1ec7t l\u1edbn \u1edf c\u00e1c qu\u1ed1c gia ph\u00e1t tri\u1ec3n.<\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng \u0111\u00e8n LED, \u1ea3nh h\u01b0\u1edfng t\u1eeb c\u00e1c ngu\u1ed3n chi\u1ebfu s\u00e1ng g\u00e2y \u00f4 nhi\u1ec5m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u1ea1n ch\u1ebf. Do y\u00eau c\u1ea7u c\u00f4ng su\u1ea5t th\u1ea5p, \u0111\u00e8n LED c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 nh\u1edd \u0111i\u1ec7n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi gi\u00e1 r\u1ebb. Trong t\u01b0\u01a1ng lai, n\u1ebfu chi ph\u00ed s\u1eed d\u1ee5ng ng\u00e0y c\u00e0ng r\u1ebb h\u01a1n, ch\u00fang c\u00f3 th\u1ec3 thay th\u1ebf c\u00e1c lo\u1ea1i \u0111\u00e8n hu\u1ef3nh quang hay \u0111\u00e8n s\u1ee3i \u0111\u1ed1t v\u1ed1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn \u1edf ch\u00e2u \u00c2u hay M\u1ef9.<\/p>\n<p class=\"Normal\" style=\"text-align: justify;\">Theo l\u00fd thuy\u1ebft, \u0111\u00e8n LED c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 thay \u0111\u1ed5i \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u0103ng l\u01b0\u1ee3ng. H\u1ea7u h\u1ebft c\u00e1c k\u1ebf ho\u1ea1ch nh\u1eb1m gi\u1ea3m kh\u00ed th\u1ea3i nh\u00e0 k\u00ednh v\u00e0 th\u00fac \u0111\u1ea9y hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng t\u1ea1i M\u1ef9 v\u00e0 ch\u00e2u \u00c2u \u0111\u1ec1u h\u00ecnh dung \u0111\u01b0\u1ee3c r\u1eb1ng, \u0111\u00e8n LED c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u00e1c c\u00f4ng ngh\u1ec7 chi\u1ebfu s\u00e1ng hi\u1ec7n nay cho \u0111\u1ebfn n\u0103m 2050.<\/p>\n<p class=\"Normal\" style=\"text-align: right;\"><span style=\"font-size: 8pt;\"><em>(Ngu\u1ed3n VNEXPRESS)<\/em><\/span><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u00e8n LED &#8211; b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 trong c\u00f4ng ngh\u1ec7 chi\u1ebfu s\u00e1ng Gi\u1ea3i th\u01b0\u1edfng Nobel V\u1eadt l\u00fd 2014 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 h\u00f4m 7\/10\/2014, t\u00f4n vinh ph\u00e1t minh c\u00e1c \u0111i\u1ed1t ph\u00e1t quang LED (Light Emitting Diode) xanh d\u01b0\u01a1ng, c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra c\u00e1c ngu\u1ed3n \u00e1nh s\u00e1ng tr\u1eafng ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 s\u00e1ng h\u01a1n. C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u01b0\u1ee3c vinh danh l\u00e0 Isamu Akasaki, Hiroshi Amano v\u00e0 Shuji Nakamura. Ph\u00e1t minh LED xanh d\u01b0\u01a1ng c\u00f3 t\u1eeb nh\u1eefng n\u0103m 1990, \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 c\u00f3 vai tr\u00f2 kh\u00f4ng nh\u1ecf trong vi\u1ec7c t\u1ea1o ra \u00e1nh s\u00e1ng tr\u1eafng theo m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c ho\u00e0n to\u00e0n m\u1edbi, \u0111em l\u1ea1i l\u1ee3i \u00edch cho con ng\u01b0\u1eddi. \u00c1nh s\u00e1ng \u0111\u00e8n LED \u1edf th\u1ee7 \u0111\u00f4 Tokyo, Nh\u1eadt B\u1ea3n. \u1ea2nh: Reuters. Th\u1eafp s\u00e1ng th\u1ebf gi\u1edbi Th\u1eddi xa x\u01b0a, con ng\u01b0\u1eddi ph\u1ea3i s\u1eed d\u1ee5ng l\u1eeda \u0111\u1ec3 t\u1ea1o ra ngu\u1ed3n s\u00e1ng. T\u1eeb th\u1ebf k\u1ef7 19, ph\u01b0\u01a1ng ph\u00e1p d\u00f9ng \u0111\u00e8n kh\u00ed tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn v\u00e0 sau \u0111\u00f3 l\u00e0 b\u00f3ng \u0111\u00e8n d\u00e2y t\u00f3c c\u1ee7a Thomas Edison. Ng\u00e0y nay, ch\u00fang ta c\u00f3 b\u00f3ng \u0111\u00e8n hu\u1ef3nh quang v\u00e0 \u0111\u00e8n hu\u1ef3nh quang compact (CFL). Nh\u1eefng c\u00f4ng ngh\u1ec7 n\u00e0y gi\u00fap nhi\u1ec1u ng\u01b0\u1eddi \u0111\u01b0\u1ee3c ti\u1ebfp c\u1eadn v\u1edbi \u00e1nh s\u00e1ng h\u01a1n, trong khi c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng h\u01a1n so v\u1edbi tr\u01b0\u1edbc \u0111\u00e2y. LED \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t th\u1ebf h\u1ec7 c\u00f4ng ngh\u1ec7 chi\u1ebfu s\u00e1ng m\u1edbi. So v\u1edbi b\u00f3ng \u0111\u00e8n CFL v\u00e0 b\u00f3ng \u0111\u00e8n d\u00e2y t\u00f3c, \u0111\u00e8n LED c\u00f3 hi\u1ec7u qu\u1ea3 h\u01a1n l\u1ea7n l\u01b0\u1ee3t g\u1ea5p 4 l\u1ea7n v\u00e0 15 l\u1ea7n. So v\u1edbi b\u00f3ng \u0111\u00e8n hu\u1ef3nh quang, n\u00f3 ti\u00eau th\u1ee5 \u00edt n\u0103ng l\u01b0\u1ee3ng h\u01a1n v\u00e0 kh\u00f4ng ch\u1ee9a th\u1ee7y ng\u00e2n \u0111\u1ed9c h\u1ea1i. Kh\u00f4ng ch\u1ec9 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, lo\u1ea1i \u0111\u00e8n n\u00e0y c\u00f2n c\u00f3 tu\u1ed5i th\u1ecd k\u00e9o d\u00e0i, g\u1ea5p kho\u1ea3ng 30 l\u1ea7n so v\u1edbi b\u00f3ng \u0111\u00e8n s\u1ee3i \u0111\u1ed1t. Nhi\u1ec1u b\u00f3ng \u0111\u00e8n LED c\u00f3 tu\u1ed5i th\u1ecd 25.000 gi\u1edd, t\u1ee9c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 17 n\u0103m s\u1eed d\u1ee5ng n\u1ebfu d\u00f9ng \u0111\u1ec3 chi\u1ebfu s\u00e1ng 4 gi\u1edd m\u1ed7i ng\u00e0y. Quay tr\u1edf l\u1ea1i nh\u1eefng n\u0103m 1980, khi \u0111i\u1ed1t ch\u1ec9 c\u00f3 th\u1ec3 ph\u00e1t quang \u0111\u1ecf v\u00e0 xanh l\u00e1, \u00e1nh s\u00e1ng kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 th\u1eafp s\u00e1ng m\u1ed9t c\u0103n ph\u00f2ng. Nh\u01b0ng ch\u1ec9 10 n\u0103m sau \u0111\u00f3, v\u1edbi vi\u1ec7c ph\u00e1t tri\u1ec3n LED xanh d\u01b0\u01a1ng c\u1ee7a Nakamura d\u1ef1a tr\u00ean nghi\u00ean c\u1ee9u tr\u01b0\u1edbc \u0111\u00f3 c\u1ee7a Akasaki v\u00e0 Amano, s\u1ef1 k\u1ebft h\u1ee3p n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra ngu\u1ed3n \u00e1nh s\u00e1ng tr\u1eafng hi\u1ec7u qu\u1ea3 h\u01a1n nhi\u1ec1u l\u1ea7n. K\u1ec3 t\u1eeb \u0111\u00f3, \u0111\u00e8n LED d\u1ea7n tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i h\u01a1n, t\u1eeb \u00e1nh s\u00e1ng \u0111\u01b0\u1eddng ph\u1ed1, \u0111\u00e8n giao th\u00f4ng, \u0111\u1ebfn m\u00e0n h\u00ecnh m\u00e1y t\u00ednh hay \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh. Th\u00f4ng b\u00e1o c\u1ee7a Vi\u1ec7n H\u00e0n l\u00e2m Khoa h\u1ecdc ho\u00e0ng gia Th\u1ee5y \u0110i\u1ec3n cho hay, ph\u00e1t minh n\u00e0y \u0111\u00e1nh d\u1ea5u s\u1ef1 ra \u0111\u1eddi c\u1ee7a c\u00f4ng ngh\u1ec7 c\u00f3 th\u1ec3 thay \u0111\u1ed5i th\u1ebf gi\u1edbi H\u01a1n 1,5 t\u1ef7 ng\u01b0\u1eddi tr\u00ean<\/p>\n","protected":false},"author":1,"featured_media":5648,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"aside","meta":[],"categories":[647],"tags":[],"_links":{"self":[{"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/posts\/5344"}],"collection":[{"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/comments?post=5344"}],"version-history":[{"count":2,"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/posts\/5344\/revisions"}],"predecessor-version":[{"id":5647,"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/posts\/5344\/revisions\/5647"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/media\/5648"}],"wp:attachment":[{"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/media?parent=5344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/categories?post=5344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phuonggia.chiliweb.org\/en\/wp-json\/wp\/v2\/tags?post=5344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}