{"id":1393,"date":"2024-05-10T01:27:04","date_gmt":"2024-05-10T01:27:04","guid":{"rendered":"https:\/\/demo9.thuythu.vn\/ecolighting\/?p=864"},"modified":"2024-06-12T02:19:52","modified_gmt":"2024-06-12T02:19:52","slug":"quang-thong-lumen-la-gi-cong-thuc-tinh-quang-thong","status":"publish","type":"post","link":"https:\/\/demo9.thuythu.vn\/ecolighting\/en\/quang-thong-lumen-la-gi-cong-thuc-tinh-quang-thong\/","title":{"rendered":"Quang th\u00f4ng (Lumen) l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c t\u00ednh quang th\u00f4ng"},"content":{"rendered":"

Trong k\u1ef9 thu\u1eadt chi\u1ebfu s\u00e1ng, c\u00f3 m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 m\u00e0 nh\u1eefng ng\u01b0\u1eddi k\u1ef9 thu\u1eadt v\u00e0 ng\u01b0\u1eddi s\u1eed d\u1ee5ng c\u1ea7n l\u01b0u \u00fd, trong \u0111\u00f3 c\u00f3 Quang th\u00f4ng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 li\u00ean quan nh\u01b0: kh\u00e1i ni\u1ec7m v\u1ec1 quang th\u00f4ng, quang th\u00f4ng \u0111\u00e8n led hay quang th\u00f4ng c\u1ee7a m\u1ed9t ngu\u1ed3n s\u00e1ng v\u00e0 c\u00f4ng th\u1ee9c t\u00ednh quang th\u00f4ng. M\u1eddi c\u00e1c b\u1ea1n theo d\u00f5i.<\/strong><\/p>\n

Quang th\u00f4ng l\u00e0 g\u00ec?<\/strong><\/h3>\n

Quang th\u00f4ng (lumen) \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng tr\u1eafc quang cho bi\u1ebft c\u00f4ng su\u1ea5t b\u1ee9c x\u1ea1 c\u1ee7a ch\u00f9m \u00e1nh s\u00e1ng ph\u00e1t ra t\u1eeb m\u1ed9t ngu\u1ed3n ph\u00e1t s\u00e1ng \u0111i\u1ec3m. \u0110\u01a1n v\u1ecb c\u1ee7a quang th\u00f4ng trong c\u00e1c h\u1ec7 \u0111\u01a1n v\u1ecb SI, CGS l\u00e0 lumen, k\u00fd hi\u1ec7u l\u00e0 lm.<\/p>\n

\"\"<\/p>\n

 <\/p>\n

\u0110\u00f3 l\u00e0 theo \u0111\u1ecbnh ngh\u0129a c\u1ee7a trang wikipedia v\u1ec1 quang th\u00f4ng v\u00e0 k\u00fd hi\u1ec7u c\u1ee7a quang th\u00f4ng. Tuy v\u1eady, ch\u1eafc h\u1eb3n b\u1ea1n v\u1eabn s\u1ebd c\u1ea3m th\u1ea5y kh\u00f3 hi\u1ec3u v\u1ec1 \u0111\u1ecbnh ngh\u0129a mang t\u00ednh ch\u1ea5t h\u00e0n l\u00e2m n\u00e0y. Kingled s\u1ebd gi\u1ea3i th\u00edch th\u00eam m\u1ed9t ch\u00fat \u0111\u1ec3 c\u00e1c b\u1ea1n d\u1ec5 hi\u1ec3u h\u01a1n.<\/p>\n

Quang th\u00f4ng l\u00e0 m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1ec3 \u0111o c\u00f4ng su\u1ea5t b\u1ee9c x\u1ea1 (\u00e1nh s\u00e1ng), n\u00f3 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 vi\u1ec7c ng\u01b0\u1eddi ta \u0111o c\u00f4ng su\u1ea5t d\u00f2ng \u0111i\u1ec7n hay c\u01b0\u1eddng \u0111\u1ed9 \u00e2m thanh. Quang th\u00f4ng cho bi\u1ebft m\u1ee9c \u0111\u1ed9 s\u00e1ng c\u1ee7a ngu\u1ed3n s\u00e1ng n\u00ean v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft, khi mua c\u00e1c lo\u1ea1i \u0111\u00e8n, trong \u0111\u00f3 c\u00f3 \u0111\u00e8n led, b\u1ea1n c\u0169ng n\u00ean ch\u00fa \u00fd \u0111\u1ebfn ch\u1ec9 s\u1ed1 quang th\u00f4ng. Ch\u1ec9 s\u1ed1 n\u00e0y c\u00e0ng cao th\u00ec \u0111\u00e8n s\u1ebd c\u00e0ng s\u00e1ng h\u01a1n.<\/p>\n

C\u00f4ng th\u1ee9c t\u00ednh quang th\u00f4ng c\u1ee7a m\u1ed9t ngu\u1ed3n s\u00e1ng<\/strong><\/p>\n

 <\/p>\n

\"\"<\/p>\n

Quang th\u00f4ng c\u1ee7a \u0111\u00e8n led<\/strong><\/h3>\n

\u0110\u00e8n led c\u00f3 nhi\u1ec1u d\u00f2ng s\u1ea3n ph\u1ea9m, th\u00f4ng th\u01b0\u1eddng, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00f4ng su\u1ea5t chi\u1ebfu s\u00e1ng l\u1edbn th\u00ec \u0111\u00e8n led s\u1ebd c\u00f3 quang th\u00f4ng c\u00e0ng cao.<\/p>\n

V\u00ed d\u1ee5 nh\u01b0: \u0111\u00e8n led \u00e2m tr\u1ea7n c\u00f3 quang th\u00f4ng ph\u1ed5 bi\u1ebfn \u1edf m\u1ee9c\u00a0600 – 1600Lm, \u0111\u00e8n led tu\u00fdp quang th\u00f4ng t\u1eeb 700 – 2000 Lm…<\/p>\n

D\u1ef1a v\u00e0o ch\u1ec9 s\u1ed1 n\u00e0y, ng\u01b0\u1eddi thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng c\u0169ng d\u1ec5 d\u00e0ng t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed \u0111\u00e8n, kho\u1ea3ng c\u00e1ch \u0111\u00e8n sao cho ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o cung c\u1ea5p \u0111\u1ee7 \u00e1nh s\u00e1ng.<\/p>\n

B\u00ean c\u1ea1nh quang th\u00f4ng ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u\u00a0c\u0169ng r\u1ea5t quan tr\u1ecdng khi thi\u1ebft k\u1ebf chi\u1ebfu s\u00e1ng trong nh\u00e0, b\u1ea1n c\u00f3 th\u1ec3 xem th\u00eam ch\u1ec9 s\u1ed1 cri\u00a0c\u1ee7a \u0111\u00e8n led nh\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"

Trong k\u1ef9 thu\u1eadt chi\u1ebfu s\u00e1ng, c\u00f3 m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 m\u00e0 nh\u1eefng ng\u01b0\u1eddi k\u1ef9 thu\u1eadt v\u00e0 ng\u01b0\u1eddi s\u1eed d\u1ee5ng c\u1ea7n l\u01b0u \u00fd, trong \u0111\u00f3 c\u00f3 Quang th\u00f4ng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 li\u00ean quan nh\u01b0: kh\u00e1i ni\u1ec7m v\u1ec1 quang th\u00f4ng, quang th\u00f4ng \u0111\u00e8n led hay quang th\u00f4ng c\u1ee7a […]\n","protected":false},"author":1,"featured_media":974,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[128],"tags":[],"acf":[],"lang":"en","translations":{"en":1393,"vi":864},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/posts\/1393"}],"collection":[{"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/comments?post=1393"}],"version-history":[{"count":1,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/posts\/1393\/revisions"}],"predecessor-version":[{"id":1399,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/posts\/1393\/revisions\/1399"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/media\/974"}],"wp:attachment":[{"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/media?parent=1393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/categories?post=1393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/tags?post=1393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}