{"id":469,"date":"2017-09-26T15:22:01","date_gmt":"2017-09-26T08:22:01","guid":{"rendered":"http:\/\/sieuthidenledvn.com\/?p=469"},"modified":"2017-09-26T15:22:01","modified_gmt":"2017-09-26T08:22:01","slug":"den-led-la-gi","status":"publish","type":"post","link":"https:\/\/c326-denled.com-vn.net\/?p=469","title":{"rendered":"\u0110\u00e8n LED l\u00e0 g\u00ec?"},"content":{"rendered":"

LED (vi\u1ebft t\u1eaft c\u1ee7a Light Emitting Diode, c\u00f3 ngh\u0129a l\u00e0 diode ph\u00e1t quang), l\u00e0 c\u00e1c diod c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t ra \u00e1nh s\u00e1ng hay tia h\u1ed3ng ngo\u1ea1i, t\u1eed ngo\u1ea1i.\u00a0C\u00f4ng ngh\u1ec7 LED l\u00e0 c\u00f4ng ngh\u1ec7 chi\u1ebfu s\u00e1ng b\u1eb1ng 2 \u0111i\u1ec7n c\u1ef1c v\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u b\u00e1n d\u1eabn v\u00e0 c\u00f4ng ngh\u1ec7 nano.<\/p>\n

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\u0110\u00e8n LED c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5 t\u1eeb 70%-80% so v\u1edbi lo\u1ea1i \u0111\u00e8n th\u00f4ng th\u01b0\u1eddng.<\/em><\/span>
\n\u1ea2nh: C\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m \u0111\u00e8n LED c\u1ee7a \u0110i\u1ec7n Quang.\u00a0<\/em><\/span><\/p>\n

C\u0169ng gi\u1ed1ng nh\u01b0 Diod, LED \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb 1 kh\u1ed1i b\u00e1n d\u1eabn lo\u1ea1i p gh\u00e9p v\u1edbi m\u1ed9t kh\u1ed1i b\u00e1n d\u1eabn lo\u1ea1i n. Trong hai kh\u1ed1i b\u00e1n d\u1eabn, m\u1ed9t kh\u1ed1i ch\u1ee9a c\u00e1c \u0111i\u1ec7n t\u1eed \u0111i\u1ec7n t\u00edch \u00e2m v\u00e0 kh\u1ed1i c\u00f2n l\u1ea1i mang nh\u1eefng l\u1ed7 tr\u1ed1ng \u0111i\u1ec7n t\u00edch d\u01b0\u01a1ng. Khi ch\u00fang g\u1eb7p nhau, c\u00e1c \u0111i\u1ec7n t\u00edch \u00e2m v\u00e0 d\u01b0\u01a1ng k\u1ebft h\u1ee3p v\u1edbi nhau, t\u1ea1o ra c\u00e1c electron gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng d\u01b0\u1edbi d\u1ea1ng l\u01b0\u1ee3ng t\u1eed \u00e1nh s\u00e1ng.<\/span><\/p>\n

\u0110\u00e8n LED kh\u00f4ng s\u1eed d\u1ee5ng ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u 220V th\u00f4ng th\u01b0\u1eddng m\u00e0 ch\u1ec9 s\u1eed d\u1ee5ng ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t chi\u1ec1u v\u1edbi hi\u1ec7u \u0111i\u1ec7n th\u1ebf nh\u1ecf n\u00ean th\u01b0\u1eddng c\u00f3 b\u1ed9 l\u1ecdc v\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111i k\u00e8m.<\/span><\/p>\n

\u0110\u00e8n LED c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5 t\u1eeb 70%-80% so v\u1edbi lo\u1ea1i \u0111\u00e8n th\u00f4ng th\u01b0\u1eddng. M\u1ed9t b\u00f3ng \u0111\u00e8n LED c\u00f4ng su\u1ea5t 5W c\u00f3 th\u1ec3 cho \u00e1nh s\u00e1ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi m\u1ed9t b\u00f3ng \u0111\u00e8n th\u00f4ng th\u01b0\u1eddng c\u00f4ng su\u1ea5t 20W. Th\u1eddi gian chi\u1ebfu s\u00e1ng c\u1ee7a \u0111\u00e8n LED tr\u1eafng trung b\u00ecnh 100,000 gi\u1edd (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 35 n\u0103m, m\u1ed7i ng\u00e0y ho\u1ea1t \u0111\u1ed9ng 8 gi\u1edd). Theo t\u00ednh to\u00e1n c\u1ee7a vi\u1ec7n H\u00e0n L\u00e2m khoa h\u1ecdc M\u1ef9, n\u1ebfu s\u1eed d\u1ee5ng \u0111\u00e8n LED cho 50% nhu c\u1ea7u chi\u1ebfu s\u00e1ng hi\u1ec7n nay \u1edf n\u01b0\u1edbc n\u00e0y, th\u00ec m\u1ed7i n\u0103m s\u1ebd ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c 17GigaWatt \u0111i\u1ec7n, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u00f4ng su\u1ea5t c\u1ee7a 17 c\u1ee5m nh\u00e0 m\u00e1y \u0111i\u1ec7n h\u1ea1t nh\u00e2n. V\u1edbi l\u0129nh v\u1ef1c chi\u1ebfu s\u00e1ng c\u00f4ng c\u1ed9ng, \u0111\u00e8n LED tr\u1eafng \u0111\u00e3 b\u1eaft \u0111\u1ea7u tham gia v\u00e0o c\u00e1c c\u00f4ng tr\u00ecnh ki\u1ebfn tr\u00fac m\u1edbi.<\/span><\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m \u0111\u00e8n LED<\/strong><\/span><\/p>\n

L\u01b0\u1ee3ng nhi\u1ec7t sinh ra trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u00e8n LED c\u0169ng th\u1ea5p h\u01a1n r\u1ea5t nhi\u1ec1u(g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u00e1ng k\u1ec3) so v\u1edbi c\u00e1c lo\u1ea1i b\u00f3ng \u0111\u00e8n th\u00f4ng th\u01b0\u1eddng hi\u1ec7n nay, \u0111\u00f3 c\u0169ng ch\u00ednh l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do khi\u1ebfn \u0111\u00e8n LED ti\u1ebft ki\u1ec7m \u0111i\u1ec7n n\u0103ng h\u01a1n c\u00e1c lo\u1ea1i b\u00f3ng \u0111\u00e8n kh\u00e1c.<\/span><\/p>\n

B\u00ean c\u1ea1nh \u0111\u00f3 \u0111\u00e8n LED c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m kh\u00e1c nh\u01b0 khi ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng sinh ra c\u00e1c tia h\u1ed3ng ngo\u1ea1i hay tia c\u1ef1c t\u00edm. Nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a lo\u1ea1i \u0111\u00e8n n\u00e0y l\u00e0 kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn, nh\u1eefng thi\u1ebft k\u1ebf v\u1edbi nhi\u1ec1u phong c\u00e1ch kh\u00e1c nhau \u0111\u00e3 v\u00e0 \u0111ang bi\u1ebfn \u0111\u00e8n LED tr\u1edf th\u00e0nh m\u1ed9t thi\u1ebft b\u1ecb chi\u1ebfu s\u00e1ng \u0111\u00e1ng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn cho kh\u00f4ng gian s\u1ed1ng c\u1ee7a m\u1ed7i gia \u0111\u00ecnh v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng.<\/span><\/p>\n

B\u1ea5t k\u1ef3 s\u1ef1 ch\u1ea5n \u0111\u1ed9ng nh\u1eb9 hay va ch\u1ea1m n\u00e0o th\u00ec d\u00e2y t\u00f3c c\u1ee7a b\u00f3ng \u0111\u00e8n hu\u1ef3nh quang c\u00f3 th\u1ec3 \u0111\u1ee9t v\u00e0 d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng ch\u00e1y n\u1ed5 nh\u01b0ng LED do c\u1ea5u t\u1ea1o an to\u00e0n v\u00e0 nh\u1ecf g\u1ecdn kh\u00f4ng d\u1ec5 d\u00e0ng b\u1ecb ph\u00e1 h\u1ee7y v\u00e0 h\u01b0 h\u1ecfng. LED c\u00f2n an to\u00e0n h\u01a1n cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng v\u1ec1 l\u00e2u d\u00e0i v\u00e0 an to\u00e0n cho m\u00f4i tr\u01b0\u1eddng v\u00ec kh\u00f4ng ch\u1ee9a th\u1ee7y ng\u00e2n. \u00c1nh s\u00e1ng LED li\u00ean t\u1ee5c v\u00e0 kh\u00f4ng nh\u1ea5p nh\u00e1y nh\u01b0 b\u00f3ng \u0111\u00e8n hu\u1ef3nh quang v\u1ed1n b\u1ecb xem l\u00e0 nguy\u00ean nh\u00e2n c\u1ee7a ch\u1ee9ng \u0111au n\u1eeda \u0111\u1ea7u v\u00e0 \u0111\u1ed9ng kinh.<\/span><\/p>\n

\u0110\u00e8n LED thay th\u1ebf \u0111\u00e8n s\u1ee3i \u0111\u1ed1t v\u00e0 \u0111\u00e8n hu\u1ef3nh quang b\u1edfi nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, tu\u1ed5i th\u1ecd cao, t\u00edch c\u1ee1 nh\u1ecf, nhi\u1ec7t n\u0103ng sinh ra trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u0111\u00e1ng k\u1ec3, ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, kh\u00f4ng s\u1eed d\u1ee5ng th\u1ee7y ng\u00e2n nh\u01b0 c\u00e1c lo\u1ea1i b\u00f3ng hu\u1ef3nh quang th\u00f4ng th\u01b0\u1eddng.<\/span><\/p>\n

\u00c1nh s\u00e1ng ph\u00e1t ra c\u1ee7a \u0111\u00e8n LED c\u00f3 m\u00e0u s\u1eafc ph\u1ee5 thu\u1ed9c v\u00e0o ch\u1ea5t li\u1ec7u l\u00e0m ra n\u00f3. V\u00ed d\u1ee5 nh\u01b0 \u0111\u00e8n LED m\u00e0u \u0111\u1ecf \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb c\u00e1c th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc nh\u01b0 nh\u00f4m, gali, a-xen. \u0110\u00e8n LED m\u00e0u tr\u1eafng \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch bao ph\u1ee7 m\u1ed9t l\u1edbp photpho m\u00e0u v\u00e0ng b\u00ean ngo\u00e0i \u0111\u00e8n LED xanh da tr\u1eddi.<\/span><\/p>\n

V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n ng\u00e0y c\u00e0ng nhanh ch\u00f3ng c\u1ee7a c\u00f4ng ngh\u1ec7 LED, ph\u1ea1m vi v\u00e0 kh\u1ea3 n\u0103ng \u1ee9ng d\u1ee5ng c\u1ee7a LED ng\u00e0y c\u00e0ng m\u1edf r\u1ed9ng trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u1eddi s\u1ed1ng.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

LED (vi\u1ebft t\u1eaft c\u1ee7a Light Emitting Diode, c\u00f3 ngh\u0129a l\u00e0 diode ph\u00e1t quang), l\u00e0 c\u00e1c diod c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t … \u0110\u1ecdc th\u00eam » “\u0110\u00e8n LED l\u00e0 g\u00ec?”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":470,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=\/wp\/v2\/posts\/469"}],"collection":[{"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=469"}],"version-history":[{"count":1,"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=\/wp\/v2\/posts\/469\/revisions"}],"predecessor-version":[{"id":471,"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=\/wp\/v2\/posts\/469\/revisions\/471"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=\/wp\/v2\/media\/470"}],"wp:attachment":[{"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c326-denled.com-vn.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}