{"id":4170,"date":"2025-07-15T22:12:47","date_gmt":"2025-07-15T14:12:47","guid":{"rendered":"https:\/\/led.amasly.com\/?page_id=4170"},"modified":"2025-07-15T22:12:58","modified_gmt":"2025-07-15T14:12:58","slug":"den-led-co-an-toan-khong-bay-quan-niem-sai-lam-pho-bien","status":"publish","type":"page","link":"https:\/\/led.amasly.com\/vi\/kien-thuc\/kien-thuc-ve-den-led\/den-led-co-an-toan-khong-bay-quan-niem-sai-lam-pho-bien\/","title":{"rendered":"\u0110\u00e8n LED c\u00f3 an to\u00e0n kh\u00f4ng? B\u1ea3y quan ni\u1ec7m sai l\u1ea7m ph\u1ed5 bi\u1ebfn"},"content":{"rendered":"
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\u0110\u00e8n LED c\u00f3 an to\u00e0n kh\u00f4ng? B\u1ea3y quan ni\u1ec7m sai l\u1ea7m ph\u1ed5 bi\u1ebfn<\/strong><\/strong><\/h1>\n\n\n\n
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 \u0110\u00e8n LED v\u00e0 \u0111\u00e8n l\u1ed3ng LED \u0111\u00e3 d\u1ea7n tr\u1edf th\u00e0nh lo\u1ea1i \u0111\u00e8n chi\u1ebfu s\u00e1ng gia \u0111\u00ecnh ph\u1ed5 bi\u1ebfn, v\u00e0 ng\u01b0\u1eddi ti\u00eau d\u00f9ng c\u0169ng b\u1eaft \u0111\u1ea7u quan t\u00e2m \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 an to\u00e0n c\u1ee7a \u0111\u00e8n LED. \u0110\u00e8n LED s\u1eed d\u1ee5ng trong th\u1eddi gian d\u00e0i c\u00f3 th\u1ec3 tr\u1edf n\u00ean n\u00f3ng nh\u01b0 \u0111\u00e8n s\u1ee3i \u0111\u1ed1t ho\u1eb7c \u0111\u00e8n hu\u1ef3nh quang, li\u1ec7u \u00e1nh s\u00e1ng xanh c\u1ee7a \u0111\u00e8n LED c\u00f3 g\u00e2y h\u1ea1i cho m\u1eaft ch\u00fang ta? Ngo\u00e0i ra, c\u0169ng c\u00f3 m\u1ed9t s\u1ed1 \u00fd ki\u1ebfn \u0111\u1eb7t c\u00e2u h\u1ecfi li\u1ec7u \u0111\u00e8n LED c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn gi\u1ea5c ng\u1ee7, g\u00e2y \u0111au \u0111\u1ea7u v\u00e0 c\u00f3 t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ebfn l\u00e0n da c\u1ee7a ch\u00fang ta hay kh\u00f4ng.<\/p>\n\n\n\n

 \u0110\u00e8n LED c\u00f3 th\u1ef1c s\u1ef1 an to\u00e0n? H\u00e3y \u0111\u1ecdc b\u00e0i vi\u1ebft n\u00e0y v\u00e0 ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u 7 quan ni\u1ec7m sai l\u1ea7m ph\u1ed5 bi\u1ebfn v\u1ec1 \u0111\u00e8n LED v\u00e0 kh\u00e1m ph\u00e1 lo\u1ea1i \u0111\u00e8n LED n\u00e0o an to\u00e0n nh\u1ea5t.<\/p>\n\n\n\n

 Th\u1ea7n tho\u1ea1i 1: \u0110\u00e8n LED kh\u00f4ng an to\u00e0n khi \u0111\u1ec3 s\u00e1ng trong th\u1eddi gian d\u00e0i.<\/strong><\/strong><\/h2>\n\n\n\n

 C\u00e1c c\u00e2u h\u1ecfi ph\u1ed5 bi\u1ebfn nh\u1ea5t m\u00e0 ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng \u0111\u1eb7t ra v\u1ec1 \u0111\u00e8n LED bao g\u1ed3m: \u0110\u00e8n LED c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c trong bao l\u00e2u? C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ch\u00fang su\u1ed1t \u0111\u00eam kh\u00f4ng? C\u00f3 b\u1ecb qu\u00e1 nhi\u1ec7t kh\u00f4ng? Nh\u1eefng c\u00e2u h\u1ecfi n\u00e0y li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 c\u1ee7a \u0111\u00e8n LED. \u0110\u00e8n LED c\u00f3 hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i quang \u0111i\u1ec7n xu\u1ea5t s\u1eafc, c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i h\u1ea7u h\u1ebft n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u00e1nh s\u00e1ng, trong khi ch\u1ec9 m\u1ed9t ph\u1ea7n r\u1ea5t nh\u1ecf n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c chuy\u1ec3n th\u00e0nh nhi\u1ec7t, do \u0111\u00f3 \u0111\u00e8n s\u1ebd kh\u00f4ng n\u00f3ng r\u00f5 r\u1ec7t nh\u01b0 c\u00e1c ngu\u1ed3n s\u00e1ng truy\u1ec1n th\u1ed1ng. Hi\u1ec7u su\u1ea5t cao n\u00e0y c\u0169ng \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea3i tr\u00ean \u0111\u01b0\u1eddng d\u00e2y c\u1ea5p \u0111i\u1ec7n lu\u00f4n \u0111\u01b0\u1ee3c duy tr\u00ec \u1edf m\u1ee9c th\u1ea5p, \u0111\u1ea3m b\u1ea3o an to\u00e0n cho vi\u1ec7c s\u1eed d\u1ee5ng \u0111i\u1ec7n.<\/p>\n\n\n\n

 N\u00f3i c\u00e1ch kh\u00e1c, \u0111\u00e8n LED l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p nh\u1ea5t cho vi\u1ec7c chi\u1ebfu s\u00e1ng li\u00ean t\u1ee5c trong th\u1eddi gian d\u00e0i. Vi\u1ec7c \u0111\u1ec3 \u0111\u00e8n s\u00e1ng su\u1ed1t c\u1ea3 \u0111\u00eam trong s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y ho\u00e0n to\u00e0n kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec, v\u00e0 c\u00e1c lo\u1ea1i \u0111\u00e8n LED ch\u1ea5t l\u01b0\u1ee3ng cao th\u1eadm ch\u00ed c\u00f2n h\u1ed7 tr\u1ee3 ho\u1ea1t \u0111\u1ed9ng 24\/7 \u2013 mi\u1ec5n l\u00e0 m\u00f4i tr\u01b0\u1eddng xung quanh kh\u00f4ng qu\u00e1 n\u00f3ng ho\u1eb7c \u1ea9m \u01b0\u1edbt.<\/p>\n\n\n\n

 T\u1ea5t nhi\u00ean, \u0111\u00e8n LED v\u1eabn t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t nh\u1ecf khi ho\u1ea1t \u0111\u1ed9ng, v\u00e0 c\u00e1c m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n c\u0169ng ph\u00e1t ra m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t nh\u1ea5t \u0111\u1ecbnh. Nhi\u1ec7t \u0111\u1ed9 c\u1ee7a \u0111\u00e8n s\u1ebd t\u0103ng d\u1ea7n sau m\u1ed9t th\u1eddi gian d\u00e0i ho\u1ea1t \u0111\u1ed9ng, do \u0111\u00f3 v\u1eabn c\u1ea7n ki\u1ec3m tra \u0111\u00e8n th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 ph\u00e1t hi\u1ec7n t\u00ecnh tr\u1ea1ng qu\u00e1 nhi\u1ec7t. N\u1ebfu b\u1ea1n \u0111\u00e3 t\u1eebng nghe v\u1ec1 c\u00e1c v\u1ee5 tai n\u1ea1n do \u0111\u00e8n LED qu\u00e1 nhi\u1ec7t v\u00e0 b\u1ed1c ch\u00e1y, r\u1ea5t c\u00f3 th\u1ec3 c\u00e1c \u0111\u00e8n li\u00ean quan kh\u00f4ng \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n t\u1ea3n nhi\u1ec7t. C\u00e1c th\u00e0nh ph\u1ea7n chi\u1ebfu s\u00e1ng LED \u0111\u1ea1t ti\u00eau chu\u1ea9n ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ee7. Ngo\u00e0i ra, vi\u1ec7c l\u1eafp \u0111\u1eb7t kh\u00f4ng \u0111\u00fang c\u00e1ch c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra v\u1ea5n \u0111\u1ec1, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eed d\u1ee5ng \u0111\u00e8n v\u00e0 \u0111\u00e8n l\u1ed3ng trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt, ho\u1eb7c kh\u00f4ng d\u00e0nh kh\u00f4ng gian cho vi\u1ec7c t\u1ea3n nhi\u1ec7t.<\/p>\n\n\n\n

 Th\u1ea7n tho\u1ea1i 2: \u00c1nh s\u00e1ng xanh do \u0111\u00e8n LED ph\u00e1t ra c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i cho m\u1eaft.<\/strong><\/strong><\/h2>\n\n\n\n

 Theo ti\u00eau chu\u1ea9n IEC 62471 \u201cAn to\u00e0n quang sinh h\u1ecdc c\u1ee7a \u0111\u00e8n v\u00e0 h\u1ec7 th\u1ed1ng \u0111\u00e8n\u201d, \u00e1nh s\u00e1ng xanh trong d\u1ea3i 400nm~500nm c\u00f3 th\u1ec3 g\u00e2y ra b\u1ec7nh v\u00f5ng m\u1ea1c. Tuy nhi\u00ean, th\u1ef1c t\u1ebf l\u00e0 \u00e1nh s\u00e1ng xanh c\u00f3 m\u1eb7t kh\u1eafp n\u01a1i trong cu\u1ed9c s\u1ed1ng c\u1ee7a ch\u00fang ta, v\u00e0 c\u00e1c lo\u1ea1i \u0111\u00e8n truy\u1ec1n th\u1ed1ng nh\u01b0 \u0111\u00e8n halogen kim lo\u1ea1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u00e2n v\u1eadn \u0111\u1ed9ng th\u1ec3 thao v\u00e0 trung t\u00e2m th\u01b0\u01a1ng m\u1ea1i kh\u00f4ng ch\u1ec9 ph\u00e1t ra \u00e1nh s\u00e1ng xanh m\u00e0 c\u00f2n t\u1ea1o ra tia c\u1ef1c t\u00edm, b\u1ee9c x\u1ea1 h\u1ed3ng ngo\u1ea1i v\u00e0 c\u00e1c lo\u1ea1i \u00e1nh s\u00e1ng kh\u00e1c c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y b\u1ec7nh v\u1ec1 m\u1eaft cao h\u01a1n. \u00c1nh s\u00e1ng xanh l\u00e0 th\u00e0nh ph\u1ea7n c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ea1o ra \u00e1nh s\u00e1ng tr\u1eafng, do \u0111\u00f3 n\u00f3 c\u00f3 m\u1eb7t trong t\u1ea5t c\u1ea3 c\u00e1c s\u1ea3n ph\u1ea9m chi\u1ebfu s\u00e1ng.<\/p>\n\n\n\n

 Ng\u01b0\u1eddi ta cho r\u1eb1ng \u00e1nh s\u00e1ng xanh t\u1eeb \u0111\u00e8n LED l\u00e0 qu\u00e1 m\u1ee9c, v\u00ec m\u1ed9t s\u1ed1 \u0111\u00e8n LED s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng xanh \u0111\u1ec3 k\u00edch th\u00edch phosphor v\u00e0ng t\u1ea1o ra \u00e1nh s\u00e1ng tr\u1eafng. Tuy nhi\u00ean, \u0111\u00e8n LED \u0111\u00e3 \u00e1p d\u1ee5ng nhi\u1ec1u bi\u1ec7n ph\u00e1p \u0111\u1ec3 ki\u1ec3m so\u00e1t \u00e1nh s\u00e1ng xanh: tr\u01b0\u1edbc h\u1ebft, ti\u00eau chu\u1ea9n IEC62471 quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t gi\u1edbi h\u1ea1n an to\u00e0n v\u1ec1 \u0111\u1ed9 s\u00e1ng ho\u1eb7c c\u01b0\u1eddng \u0111\u1ed9 chi\u1ebfu x\u1ea1 c\u1ee7a \u00e1nh s\u00e1ng xanh t\u1eeb \u0111\u00e8n v\u00e0 \u0111\u00e8n l\u1ed3ng, mi\u1ec5n l\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n t\u01b0\u01a1ng \u1ee9ng v\u1ec1 nguy c\u01a1 sinh h\u1ecdc quang h\u1ecdc; Th\u1ee9 hai, vi\u1ec7c s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 tr\u1ed9n ba m\u00e0u RGB trong \u0111\u00e8n LED c\u00f3 th\u1ec3 gi\u1ea3m t\u1ef7 l\u1ec7 \u00e1nh s\u00e1ng xanh; Ngo\u00e0i ra, vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00e8n LED \u00e1nh s\u00e1ng tr\u1eafng \u1ea5m c\u00f3 nhi\u1ec7t \u0111\u1ed9 m\u00e0u d\u01b0\u1edbi 3000K c\u0169ng c\u00f3 th\u1ec3 hi\u1ec7u qu\u1ea3 trong vi\u1ec7c gi\u1ea3m l\u01b0\u1ee3ng \u00e1nh s\u00e1ng xanh ph\u00e1t ra.<\/p>\n\n\n\n

 Th\u1ea7n tho\u1ea1i 3: \u0110\u00e8n LED \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea5c ng\u1ee7<\/strong><\/strong><\/h2>\n\n\n\n

 C\u00e1o bu\u1ed9c r\u1eb1ng \u0111\u00e8n LED \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn gi\u1ea5c ng\u1ee7 c\u0169ng xu\u1ea5t ph\u00e1t t\u1eeb lo ng\u1ea1i v\u1ec1 \u00e1nh s\u00e1ng xanh. Vi\u1ec7c ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi \u00e1nh s\u00e1ng xanh s\u1ebd truy\u1ec1n t\u00edn hi\u1ec7u \u0111\u1ebfn n\u00e3o \u0111\u1ec3 \u201cgi\u1ea3m ti\u1ebft melatonin\u201d, s\u1ef1 thi\u1ebfu h\u1ee5t hormone n\u00e0y s\u1ebd l\u00e0m r\u1ed1i lo\u1ea1n nh\u1ecbp sinh h\u1ecdc c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn m\u1ea5t ng\u1ee7. Tuy nhi\u00ean, c\u00e1c s\u1ea3n ph\u1ea9m LED \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m \u0111\u00e8n ng\u1ee7 th\u01b0\u1eddng c\u00f3 nhi\u1ec7t \u0111\u1ed9 m\u00e0u th\u1ea5p, \u0111\u1ed9 s\u00e1ng th\u1ea5p v\u00e0 thi\u1ebft k\u1ebf gi\u1ea3m \u00e1nh s\u00e1ng xanh. Nhi\u1ec1u \u0111\u00e8n LED c\u00f2n c\u00f3 ch\u1ee9c n\u0103ng \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng v\u00e0 m\u00e0u s\u1eafc \u2013 khi \u0111i\u1ec1u ch\u1ec9nh sang \u00e1nh s\u00e1ng tr\u1eafng \u1ea5m 3000-3500K, l\u01b0\u1ee3ng \u00e1nh s\u00e1ng xanh ph\u00e1t ra s\u1ebd gi\u1ea3m \u0111\u00e1ng k\u1ec3. M\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m c\u00f2n \u0111i k\u00e8m v\u1edbi ch\u1ee5p \u0111\u00e8n l\u1ecdc \u00e1nh s\u00e1ng xanh. Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i \u0111\u00e8n LED v\u00e0 \u0111\u00e8n l\u1ed3ng c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn gi\u1ea5c ng\u1ee7.<\/p>\n\n\n\n

 Th\u1ea7n tho\u1ea1i 4: \u00c1nh s\u00e1ng nh\u1ea5p nh\u00e1y LED c\u00f3 th\u1ec3 g\u00e2y \u0111au \u0111\u1ea7u.<\/strong><\/strong><\/h2>\n\n\n\n

 S\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a \u0111\u00e8n nh\u00e1y v\u00e0 \u0111\u00e8n l\u1ed3ng th\u1ef1c s\u1ef1 c\u00f3 h\u1ea1i cho c\u01a1 th\u1ec3 con ng\u01b0\u1eddi, c\u1ea7n \u0111\u01b0\u1ee3c thay th\u1ebf ngay l\u1eadp t\u1ee9c. Tuy nhi\u00ean, hi\u1ec7n t\u01b0\u1ee3ng nh\u00e1y kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 ri\u00eang c\u1ee7a \u0111\u00e8n LED, c\u00e1c ngu\u1ed3n s\u00e1ng kh\u00e1c c\u0169ng c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i, \u0111i\u1ec1u n\u00e0y ho\u00e0n to\u00e0n ph\u1ee5 thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a \u0111\u00e8n. L\u00e0 c\u00f4ng ngh\u1ec7 chi\u1ebfu s\u00e1ng ti\u00ean ti\u1ebfn nh\u1ea5t, \u0111\u00e8n LED \u0111\u00e3 ph\u00e1t tri\u1ec3n nhi\u1ec1u ch\u01b0\u01a1ng tr\u00ecnh \u0111\u1ec3 \u1ee9c ch\u1ebf hi\u1ec7n t\u01b0\u1ee3ng nh\u00e1y: c\u1ea5u h\u00ecnh b\u00ean trong c\u1ee7a b\u00f3ng \u0111\u00e8n LED \u0111\u1ea1t ti\u00eau chu\u1ea9n v\u1edbi chip d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u hi\u1ec7u qu\u1ea3 hi\u1ec7n t\u01b0\u1ee3ng nh\u00e1y, thi\u1ebft k\u1ebf m\u1ea1ch c\u0169ng s\u1eed d\u1ee5ng nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p ch\u1ec9nh l\u01b0u kh\u00e1c nhau. Mua s\u1ea3n ph\u1ea9m \u0111\u1ea1t ti\u00eau chu\u1ea9n g\u1ea7n nh\u01b0 kh\u00f4ng g\u1eb7p v\u1ea5n \u0111\u1ec1 nh\u1ea5p nh\u00e1y. Ki\u1ec3m tra nh\u1ea5p nh\u00e1y r\u1ea5t \u0111\u01a1n gi\u1ea3n: s\u1eed d\u1ee5ng camera \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng \u0111\u1ec3 chi\u1ebfu v\u00e0o \u0111\u00e8n, n\u1ebfu m\u00e0n h\u00ecnh xu\u1ea5t hi\u1ec7n c\u00e1c v\u1ec7t dao \u0111\u1ed9ng th\u00ec cho th\u1ea5y c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

 Th\u1ea7n tho\u1ea1i 5: \u0110\u00e8n LED c\u00f3 t\u00e1c \u0111\u1ed9ng x\u1ea5u \u0111\u1ebfn da<\/strong><\/strong><\/h2>\n\n\n\n

 M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng \u0111\u00e8n LED \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 \u0111\u00e8n t\u1eafm n\u1eafng, b\u1eaft \u0111\u1ea7u lo l\u1eafng v\u1ec1 vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u00e8n LED gia \u0111\u00ecnh trong th\u1eddi gian d\u00e0i c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn da. Nh\u1eefng ng\u01b0\u1eddi c\u00f3 lo ng\u1ea1i n\u00e0y c\u1ea7n ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng gi\u1eefa \u0111\u00e8n LED l\u00e0m \u0111\u1eb9p v\u00e0 \u0111\u00e8n LED th\u00f4ng th\u01b0\u1eddng \u2013 \u0111\u00e8n LED th\u00f4ng th\u01b0\u1eddng c\u00f3 d\u1ea3i b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng r\u1ed9ng, trong khi b\u00f3ng \u0111\u00e8n LED y t\u1ebf s\u1ebd ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng trong m\u1ed9t v\u00f9ng c\u1ee5 th\u1ec3. V\u00ed d\u1ee5, \u00e1nh s\u00e1ng xanh 415nm, lo\u1ea1i \u00e1nh s\u00e1ng hi\u1ec7u qu\u1ea3 nh\u1ea5t trong \u0111i\u1ec1u tr\u1ecb m\u1ee5n tr\u1ee9ng c\u00e1, \u0111\u00e8n LED \u00e1nh s\u00e1ng xanh y t\u1ebf s\u1ebd ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd b\u01b0\u1edbc s\u00f3ng trong kho\u1ea3ng 415\u00b15nm. Ph\u1ea1m vi ph\u1ed5 \u00e1nh s\u00e1ng c\u1ee7a \u0111\u00e8n LED th\u00f4ng th\u01b0\u1eddng, t\u1ef7 l\u1ec7 \u00e1nh s\u00e1ng trong m\u1ed7i d\u1ea3i l\u00e0 kh\u00f4ng \u0111\u00e1ng k\u1ec3 v\u00e0 s\u1ebd kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe c\u1ee7a da.<\/p>\n\n\n\n

 Th\u1ea7n tho\u1ea1i 6: \u0110\u00e8n LED ch\u1ee9a c\u00e1c nguy\u00ean t\u1ed1 kim lo\u1ea1i c\u00f3 h\u1ea1i cho s\u1ee9c kh\u1ecfe.<\/strong><\/strong><\/h2>\n\n\n\n

 Th\u1ee7y ng\u00e2n r\u1ea5t \u0111\u1ed9c h\u1ea1i \u0111\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u01a1 th\u1ec3 con ng\u01b0\u1eddi, th\u01b0\u1eddng c\u00f3 trong \u0111\u00e8n hu\u1ef3nh quang, \u0111\u00e8n th\u1ee7y ng\u00e2n \u00e1p su\u1ea5t cao v\u00e0 c\u00e1c lo\u1ea1i \u0111\u00e8n truy\u1ec1n th\u1ed1ng kh\u00e1c, nh\u01b0ng \u0111\u00e8n LED kh\u00f4ng ch\u1ee9a th\u1ee7y ng\u00e2n, \u0111i\u1ec1u n\u00e0y khi\u1ebfn \u0111\u00e8n LED an to\u00e0n h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i \u0111\u00e8n kh\u00e1c. Ngo\u00e0i ra, \u0111\u00e8n LED c\u0169ng kh\u00f4ng ch\u1ee9a ch\u00ec, cadmium v\u00e0 c\u00e1c nguy\u00ean t\u1ed1 nguy hi\u1ec3m kh\u00e1c c\u00f3 trong m\u1ed9t s\u1ed1 lo\u1ea1i \u0111\u00e8n truy\u1ec1n th\u1ed1ng. M\u1eb7c d\u00f9 \u0111\u00e8n LED ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n nickel v\u00e0 \u0111\u1ed3ng, nh\u01b0ng c\u00e1c nguy\u00ean t\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c s\u1ea3n ph\u1ea9m ti\u00eau d\u00f9ng h\u00e0ng ng\u00e0y: d\u00e2y b\u00ean trong c\u1ee7a \u0111\u00e8n hu\u1ef3nh quang ch\u1ee7 y\u1ebfu l\u00e0 l\u00f5i s\u1eaft m\u1ea1 nickel, \u0111\u00e8n truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng s\u1eed d\u1ee5ng d\u00e2y s\u1eaft m\u1ea1 \u0111\u1ed3ng, d\u00e2y \u0111\u1ed3ng m\u1ea1 nickel, v.v., v\u00e0 \u0111\u1ea7u \u0111\u00e8n E27\/E14 c\u1ee7a \u0111\u00e8n hu\u1ef3nh quang c\u0169ng ch\u1ee7 y\u1ebfu l\u00e0 v\u1eadt li\u1ec7u s\u1eaft m\u1ea1 nickel. So v\u1edbi c\u00e1c lo\u1ea1i \u0111\u00e8n kh\u00e1c, t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 kim lo\u1ea1i trong \u0111\u00e8n LED v\u00e0 \u0111\u00e8n l\u1ed3ng l\u00e0 r\u1ea5t nh\u1ecf.<\/p>\n\n\n\n

 Th\u1ea7n tho\u1ea1i 7: \u0110\u00e8n LED ph\u00e1t ra c\u00e1c tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb c\u00f3 h\u1ea1i.<\/strong><\/strong><\/h2>\n\n\n\n

 \u0110\u00e8n LED th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 PWM \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ngu\u1ed3n \u0111i\u1ec7n d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c v\u00e0 ch\u1ee9c n\u0103ng \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng, do \u0111\u00f3 s\u1ebd t\u1ea1o ra m\u1ed9t s\u1ed1 h\u00e0i \u0111i\u1ec7n t\u1eeb. Tuy nhi\u00ean, tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb do \u0111\u00e8n LED t\u1ea1o ra thu\u1ed9c lo\u1ea1i \u201ctr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb m\u1ee9c th\u1ea5p\u201d, kh\u00f4ng c\u00f3 b\u1eb1ng ch\u1ee9ng cho th\u1ea5y vi\u1ec7c ti\u1ebfp x\u00fac v\u1edbi tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb m\u1ee9c th\u1ea5p s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe. H\u01a1n n\u1eefa, c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb gi\u1ea3m m\u1ea1nh theo kho\u1ea3ng c\u00e1ch, t\u00e1c \u0111\u1ed9ng th\u1ef1c t\u1ebf g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

 L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn \u0111\u00e8n LED an to\u00e0n nh\u1ea5t?<\/strong><\/strong><\/h2>\n\n\n\n
    \n
  1. \u00a0Nh\u1eadn di\u1ec7n c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a c\u00e1c th\u01b0\u01a1ng hi\u1ec7u uy t\u00edn \u0111\u00e3 \u0111\u1ea1t c\u00e1c ch\u1ee9ng nh\u1eadn UL, RoHS v\u00e0 nhi\u1ec1u ch\u1ee9ng nh\u1eadn kh\u00e1c;<\/li>\n\n\n\n
  2. \u00a0\u01afu ti\u00ean s\u1eed d\u1ee5ng th\u00e2n \u0111\u00e8n b\u1eb1ng nh\u1ef1a ch\u1ed1ng ch\u00e1y (b\u1ec1 m\u1eb7t c\u00f3 texture m\u1edd), lo\u1ea1i b\u1ecf \u0111\u00e8n l\u00e0m t\u1eeb nh\u1ef1a th\u00f4ng th\u01b0\u1eddng (b\u1ec1 m\u1eb7t nh\u1eb5n b\u00f3ng ph\u1ea3n chi\u1ebfu) c\u00f3 t\u00ednh d\u1ec5 ch\u00e1y.;<\/li>\n\n\n\n
  3. \u00a0T\u1ea3n nhi\u1ec7t nh\u00f4m\/s\u1eaft \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u00e0ng l\u1edbn th\u00ec hi\u1ec7u qu\u1ea3 t\u1ea3n nhi\u1ec7t c\u00e0ng t\u1ed1t.<\/li>\n\n\n\n
  4. \u00a0Ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng n\u00ean duy tr\u00ec tr\u1ea1ng th\u00e1i t\u0103ng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, v\u00e0 th\u00f4ng qua camera \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 c\u00f3 m\u1eb7t ho\u1eb7c v\u1eafng m\u1eb7t c\u1ee7a \u0111\u00e8n nh\u00e1y;<\/li>\n\n\n\n
  5. \u00a0M\u1ea1ch \u0111i\u1ec1u khi\u1ec3n d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c ph\u1ea3i \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh;<\/li>\n\n\n\n
  6. \u00a0Nhi\u1ec7t \u0111\u1ed9 m\u00e0u c\u1ee7a \u0111\u00e8n LED trong nh\u00e0 kh\u00f4ng n\u00ean v\u01b0\u1ee3t qu\u00e1 4000K, ch\u1ec9 s\u1ed1 t\u00e1i t\u1ea1o m\u00e0u (CRI) c\u1ea7n ph\u1ea3i \u2265 80 \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng ti\u1ec1m \u1ea9n c\u1ee7a \u00e1nh s\u00e1ng xanh;<\/li>\n<\/ol>\n\n\n\n

     B\u1ea3y, vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u00e8n v\u00e0 \u0111\u00e8n l\u1ed3ng h\u00e0ng ng\u00e0y n\u00ean \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh gi\u00e1 tr\u1ecb URG trong kho\u1ea3ng 16-19 \u0111\u1ec3 tr\u00e1nh g\u00e2y t\u1ed5n th\u01b0\u01a1ng cho m\u1eaft do ch\u00f3i s\u00e1ng.<\/p>\n\n\n\n

     \u0110\u00e8n LED kh\u00f4ng nh\u01b0 nh\u1eefng tin \u0111\u1ed3n v\u1ec1 nguy c\u01a1 s\u1ee9c kh\u1ecfe. Mi\u1ec5n l\u00e0 b\u1ea1n mua s\u1ea3n ph\u1ea9m \u0111\u1ea1t ti\u00eau chu\u1ea9n, c\u00e1c nguy c\u01a1 an to\u00e0n li\u00ean quan \u0111\u1ebfn t\u1ea3n nhi\u1ec7t v\u00e0 \u00e1nh s\u00e1ng xanh ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c. C\u00e1c g\u1ee3i \u00fd mua s\u1eafm trong b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c tr\u1ea3i nghi\u1ec7m chi\u1ebfu s\u00e1ng an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n

    <\/div><\/div>\n\n\n\n

    S\u1ea3n ph\u1ea9m li\u00ean quan<\/h2>\n\n\n\n
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    \"\"<\/a><\/figure><\/div>\n<\/div>\n\n\n\n
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    \"\"<\/a><\/figure><\/div>\n<\/div>\n\n\n\n
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    \"\"<\/a><\/figure><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
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    \u0110\u00e8n LED ch\u1ed1ng ch\u00e1y n\u1ed5<\/a><\/h4>\n<\/div>\n\n\n\n
    \n

    \u0110\u00e8n LED ch\u1ed1ng n\u01b0\u1edbc, ch\u1ed1ng b\u1ee5i v\u00e0 ch\u1ed1ng va \u0111\u1eadp<\/a><\/h4>\n<\/div>\n\n\n\n
    \n

    \u0110\u00e8n chi\u1ebfu s\u00e1ng ch\u1ed1ng ch\u00e1y n\u1ed5 cho tr\u1ea1m x\u0103ng<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n\n\n\n
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    \"\"<\/a><\/figure><\/div>\n<\/div>\n\n\n\n
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    \"\"<\/a><\/figure><\/div>\n<\/div>\n\n\n\n
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    \"\"<\/a><\/figure><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
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    \u0110\u00e8n LED chi\u1ebfu s\u00e1ng r\u1ed9ng<\/a><\/h4>\n<\/div>\n\n\n\n
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    \u0110\u00e8n \u1ed1ng LED ch\u1ed1ng n\u01b0\u1edbc, ch\u1ed1ng b\u1ee5i v\u00e0 ch\u1ed1ng va \u0111\u1eadp<\/a><\/h4>\n<\/div>\n\n\n\n
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    \u0110\u00e8n \u0111\u01b0\u1eddng LED<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n\n\n\n
    <\/div><\/div>\n\n\n\n

    <\/p>","protected":false},"excerpt":{"rendered":"

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