{"id":10347,"date":"2023-11-30T08:13:37","date_gmt":"2023-11-30T08:13:37","guid":{"rendered":"https:\/\/gd-1.com\/?p=10347"},"modified":"2024-03-20T07:39:27","modified_gmt":"2024-03-20T07:39:27","slug":"den-led-cho-kinh-hien-vi-voi-cong-suat-quang-da-dang","status":"publish","type":"post","link":"https:\/\/gd-1.com\/den-led-cho-kinh-hien-vi-voi-cong-suat-quang-da-dang\/","title":{"rendered":"\u0110\u00e8n LED k\u00ednh hi\u1ec3n vi v\u1edbi c\u00f4ng su\u1ea5t quang \u0111a d\u1ea1ng"},"content":{"rendered":"
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\u0110\u00e8n LED c\u1ea5p s\u00e1ng cho k\u00ednh hi\u1ec3n vi<\/a><\/strong><\/h2>\n<\/div>\n
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Trong s\u1ed1 nh\u1eefng c\u00f4ng ngh\u1ec7 m\u1edbi \u0111\u1ec3 chi\u1ebfu s\u00e1ng trong k\u00ednh hi\u1ec3n vi hu\u1ef3nh quang<\/a> l\u00e0 \u0111i\u1ed1t ph\u00e1t quang (LED<\/b>). C\u00e1c thi\u1ebft b\u1ecb b\u00e1n d\u1eabn \u0111a n\u0103ng n\u00e0y s\u1edf h\u1eefu t\u1ea5t c\u1ea3 c\u00e1c t\u00ednh n\u0103ng m\u00e0 \u0111\u00e8n s\u1ee3i \u0111\u1ed1t (halogen vonfram) v\u00e0 \u0111\u00e8n h\u1ed3 quang thi\u1ebfu, \u0111\u1ed3ng th\u1eddi hi\u1ec7n \u0111\u1ee7 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng b\u1eb1ng pin \u0111i\u1ec7n \u00e1p th\u1ea5p ho\u1eb7c ngu\u1ed3n \u0111i\u1ec7n c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i v\u1edbi chi ph\u00ed th\u1ea5p. C\u00f4ng su\u1ea5t quang \u0111a d\u1ea1ng do \u0111\u00e8n LED cung c\u1ea5p gi\u00fap c\u00f3 th\u1ec3 ch\u1ecdn ngu\u1ed3n s\u00e1ng \u0111i-\u1ed1t ri\u00eang l\u1ebb \u0111\u1ec3 cung c\u1ea5p d\u1ea3i b\u01b0\u1edbc s\u00f3ng k\u00edch th\u00edch t\u1ed1i \u01b0u cho hu\u1ef3nh quang tr\u1ea3i d\u00e0i trong v\u00f9ng t\u1eed ngo\u1ea1i, kh\u1ea3 ki\u1ebfn \u200b\u200bv\u00e0 c\u1eadn h\u1ed3ng ngo\u1ea1i. H\u01a1n n\u1eefa, \u0111\u00e8n LED c\u00f4ng su\u1ea5t cao m\u1edbi h\u01a1n t\u1ea1o ra c\u01b0\u1eddng \u0111\u1ed9 \u0111\u1ee7 \u0111\u1ec3 cung c\u1ea5p ngu\u1ed3n s\u00e1ng h\u1eefu \u00edch cho nhi\u1ec1u \u1ee9ng d\u1ee5ng trong k\u00ednh hi\u1ec3n vi hu\u1ef3nh quang<\/a>, bao g\u1ed3m ki\u1ec3m tra c\u00e1c t\u1ebf b\u00e0o v\u00e0 m\u00f4 c\u1ed1 \u0111\u1ecbnh, c\u0169ng nh\u01b0 ch\u1ee5p \u1ea3nh t\u1ebf b\u00e0o s\u1ed1ng k\u1ebft h\u1ee3p v\u1edbi truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng c\u1ed9ng h\u01b0\u1edfng Forster (FRET) v\u00e0 k\u1ef9 thu\u1eadt \u0111o tu\u1ed5i th\u1ecd (FLIM<\/b>). H\u01b0\u1edbng d\u1eabn d\u01b0\u1edbi \u0111\u00e2y s\u1ebd kh\u00e1m ph\u00e1 h\u1ec7 th\u1ed1ng chi\u1ebfu s\u00e1ng LED ZEISS Colibri<\/strong> cho k\u00ednh hi\u1ec3n vi hu\u1ef3nh quang<\/a> tr\u01b0\u1eddng r\u1ed9ng.<\/p>\n

So v\u1edbi \u00e1nh s\u00e1ng laser, tr\u01b0\u1eddng r\u1ed9ng h\u01a1n \u0111\u00e8n LED s\u1ebd h\u1eefu \u00edch h\u01a1n trong vi\u1ec7c k\u00edch th\u00edch nhi\u1ec1u lo\u1ea1i \u0111\u1ea7u d\u00f2 hu\u1ef3nh quang v\u00e0 so v\u1edbi nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao v\u00e0 quang ph\u1ed5 li\u00ean t\u1ee5c ph\u00e1t ra t\u1eeb \u0111\u00e8n h\u1ed3 quang, \u0111\u00e8n LED m\u00e1t h\u01a1n, nh\u1ecf h\u01a1n v\u00e0 cung c\u1ea5p c\u01a1 ch\u1ebf thu\u1eadn ti\u1ec7n h\u01a1n nhi\u1ec1u \u0111\u1ec3 b\u1eadt v\u00e0 t\u1eaft ngu\u1ed3n theo chu k\u1ef3 c\u0169ng nh\u01b0 ch\u1ecdn nhanh c\u00e1c b\u01b0\u1edbc s\u00f3ng c\u1ee5 th\u1ec3.\u00a0C\u00e1c b\u1ed9 chi\u1ebfu s\u00e1ng LED \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho k\u00ednh hi\u1ec3n vi hu\u1ef3nh quang<\/a> \u0111\u00e3 \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 nh\u00e0 s\u1ea3n xu\u1ea5t gi\u1edbi thi\u1ec7u v\u00e0 m\u1eb7c d\u00f9 c\u01b0\u1eddng \u0111\u1ed9 ph\u00e1t x\u1ea1 y\u1ebfu h\u01a1n khi so s\u00e1nh v\u1edbi c\u00e1c v\u1ea1ch quang ph\u1ed5 s\u00e1ng c\u1ee7a \u0111\u00e8n h\u1ed3 quang halogenua kim lo\u1ea1i v\u00e0 th\u1ee7y ng\u00e2n, xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n LED hi\u1ec7n nay h\u01b0\u1edbng \u0111\u1ebfn k\u1ef3 v\u1ecdng v\u1ec1 \u0111\u1ed9 s\u00e1ng t\u0103ng \u0111\u00e1ng k\u1ec3 kh\u1eafp t\u1ea5t c\u1ea3 c\u00e1c v\u00f9ng b\u01b0\u1edbc s\u00f3ng trong v\u00e0i n\u0103m t\u1edbi. H\u01a1n n\u1eefa, nh\u1eefng ti\u1ebfn b\u1ed9 g\u1ea7n \u0111\u00e2y trong c\u00f4ng ngh\u1ec7 LED nh\u1eb1m m\u1ee5c \u0111\u00edch s\u1ea3n xu\u1ea5t c\u00e1c tinh th\u1ec3 ch\u1ebft c\u00f3 d\u1ea1ng h\u00ecnh h\u1ecdc l\u00e0m gi\u1ea3m s\u1ef1 m\u1ea5t \u00e1nh s\u00e1ng do ph\u1ea3n x\u1ea1 b\u00ean trong s\u1ebd gi\u00fap t\u1ea1o ra c\u00e1c thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o h\u1ea7u h\u1ebft t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng trong k\u00ednh hi\u1ec3n vi hu\u1ef3nh quang<\/a>.\u00a0Minh h\u1ecda trong H\u00ecnh 1<\/em> l\u00e0 c\u1ea5u h\u00ecnh ph\u1ed5 ph\u00e1t x\u1ea1 LED c\u1ee7a m\u1ed9t s\u1ed1 \u0111i\u1ed1t c\u00f3 tr\u00ean th\u1ecb tr\u01b0\u1eddng. Quang ph\u1ed5 \u0111\u01b0\u1ee3c ghi l\u1ea1i t\u1ea1i m\u1eb7t ph\u1eb3ng ti\u00eau c\u1ef1 c\u1ee7a k\u00ednh hi\u1ec3n vi<\/a> b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng g\u01b0\u01a1ng b\u0103ng th\u00f4ng r\u1ed9ng \u0111\u01b0\u1ee3c \u0111\u1eb7t trong kh\u1ed1i quang hu\u1ef3nh quang.<\/p>\n

<\/center>Ng\u01b0\u1ee3c l\u1ea1i v\u1edbi \u0111\u00e8n h\u1ed3 quang c\u00f3 \u0111\u1ed9 s\u00e1ng cao, c\u00f4ng ngh\u1ec7 LED \u0111\u00e3 d\u1ea7n ph\u00e1t tri\u1ec3n t\u1eeb c\u00e1c thi\u1ebft b\u1ecb th\u00f4 s\u01a1 ch\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng cung c\u1ea5p 1\/1000 lumen \u00e1nh s\u00e1ng \u0111\u1ecf v\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 1960. Tuy nhi\u00ean, trong b\u1ed1n th\u1eadp k\u1ef7 qua, \u0111\u00e8n LED \u0111\u00e3 ph\u00e1t tri\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 ngang ng\u1eeda v\u1edbi c\u00e1c b\u1ed9 vi x\u1eed l\u00fd.\u00a0T\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u1ef1 \u0111o\u00e1n c\u1ee7a Gordon E. Moore r\u1eb1ng s\u1ed1 l\u01b0\u1ee3ng b\u00e1n d\u1eabn tr\u00ean chip m\u00e1y t\u00ednh s\u1ebd t\u0103ng g\u1ea5p \u0111\u00f4i c\u1ee9 sau hai n\u0103m, nh\u00e0 khoa h\u1ecdc Roland Haitz c\u1ee7a Agilent Technologies d\u1ef1 \u0111o\u00e1n r\u1eb1ng \u0111\u1ed9 s\u00e1ng c\u1ee7a \u0111\u00e8n LED s\u1ebd t\u0103ng g\u1ea5p 20 l\u1ea7n sau m\u1ed7i 10 n\u0103m. Tr\u00ean th\u1ef1c t\u1ebf, n\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0110\u1ecbnh lu\u1eadt Haitz<\/b>\u00a0\u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 \u0111\u00e1ng tin c\u1eady v\u00ec \u0111\u00e8n LED \u0111\u00e3 t\u0103ng g\u1ea5p \u0111\u00f4i \u0111\u1ed9 s\u00e1ng trong l\u1ecbch s\u1eed c\u1ee9 sau hai n\u0103m v\u00e0 d\u1ef1 ki\u1ebfn \u200b\u200bs\u1ebd ti\u1ebfp t\u1ee5c t\u0103ng tr\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 v\u1ec1 hi\u1ec7u su\u1ea5t.\u00a0Khi \u0111\u1ed9 s\u00e1ng v\u00e0 d\u1ea3i m\u00e0u s\u1eb5n c\u00f3 t\u0103ng l\u00ean, \u0111\u00e8n LED \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng m\u1edbi, bao g\u1ed3m vai tr\u00f2 thay th\u1ebf b\u1ec1n b\u1ec9 v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng cho \u0111\u00e8n s\u1ee3i \u0111\u1ed1t d\u00f9ng trong chi\u1ebfu s\u00e1ng gia \u0111\u00ecnh v\u00e0 c\u00f4ng nghi\u1ec7p.\u00a0Ngo\u00e0i ra, \u0111\u00e8n LED hi\u1ec7u su\u1ea5t cao hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p, y t\u1ebf v\u00e0 qu\u00e2n s\u1ef1 kh\u00e1c.\u00a0Trong s\u1ed1 r\u1ea5t nhi\u1ec1u v\u00ed d\u1ee5 l\u00e0 \u0111i\u1ec1u h\u01b0\u1edbng, robot, th\u1ecb gi\u00e1c m\u00e1y, n\u1ed9i soi v\u00e0 thi\u1ebft b\u1ecb ch\u1ea9n \u0111o\u00e1n.\u00a0Trong t\u01b0\u01a1ng lai, nhu c\u1ea7u v\u1ec1 ngu\u1ed3n s\u00e1ng c\u00f3 \u0111\u1ed9 s\u00e1ng cao d\u1ef1a tr\u00ean thi\u1ebft b\u1ecb LED s\u1ebd ng\u00e0y c\u00e0ng t\u0103ng \u1edf c\u00e1c khu v\u1ef1c c\u1ee7a n\u1ec1n kinh t\u1ebf c\u00f3 s\u1ee9c m\u1ea1nh th\u1ecb tr\u01b0\u1eddng l\u1edbn h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi k\u00ednh hi\u1ec3n vi hu\u1ef3nh quang<\/a>.<\/p>\n

Ngu\u1ed3n: https:\/\/zeiss-campus.magnet.fsu.edu\/tutorials\/colibri\/indexflash.html<\/a><\/em><\/p>\n

C\u00f4ng ty Minh Khang l\u00e0 nh\u00e0 ph\u00e2n ph\u1ed1i \u0111\u1ed9c quy\u1ec1n th\u1ecb tr\u01b0\u1eddng mi\u1ec1n Nam ph\u00e2n kh\u00fac\u00a0k\u00ednh hi\u1ec3n vi<\/a>\u00a0h\u00e3ng\u00a0Carl ZEISS<\/a>.<\/strong><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\u0110\u00e8n LED c\u1ea5p s\u00e1ng cho k\u00ednh hi\u1ec3n vi Trong s\u1ed1 nh\u1eefng c\u00f4ng ngh\u1ec7 m\u1edbi \u0111\u1ec3 chi\u1ebfu s\u00e1ng trong k\u00ednh hi\u1ec3n vi hu\u1ef3nh quang l\u00e0 \u0111i\u1ed1t ph\u00e1t quang (LED). C\u00e1c thi\u1ebft b\u1ecb b\u00e1n d\u1eabn \u0111a n\u0103ng n\u00e0y s\u1edf h\u1eefu t\u1ea5t c\u1ea3 c\u00e1c t\u00ednh n\u0103ng m\u00e0 \u0111\u00e8n s\u1ee3i \u0111\u1ed1t (halogen vonfram) v\u00e0 \u0111\u00e8n h\u1ed3 quang thi\u1ebfu, \u0111\u1ed3ng…<\/p>\n","protected":false},"author":3,"featured_media":10354,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_lock_modified_date":false,"footnotes":""},"categories":[40],"tags":[],"class_list":["post-10347","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/posts\/10347"}],"collection":[{"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/comments?post=10347"}],"version-history":[{"count":5,"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/posts\/10347\/revisions"}],"predecessor-version":[{"id":11818,"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/posts\/10347\/revisions\/11818"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/media\/10354"}],"wp:attachment":[{"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/media?parent=10347"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/categories?post=10347"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gd-1.com\/wp-json\/wp\/v2\/tags?post=10347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}