{"id":1396,"date":"2024-05-10T01:27:04","date_gmt":"2024-05-10T01:27:04","guid":{"rendered":"https:\/\/demo9.thuythu.vn\/ecolighting\/?p=872"},"modified":"2024-06-12T02:19:55","modified_gmt":"2024-06-12T02:19:55","slug":"chi-so-hoan-mau-cri-la-gi","status":"publish","type":"post","link":"https:\/\/demo9.thuythu.vn\/ecolighting\/en\/chi-so-hoan-mau-cri-la-gi\/","title":{"rendered":"Ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u CRI l\u00e0 g\u00ec?"},"content":{"rendered":"

Ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u CRI l\u00e0 ch\u1ec9 s\u1ed1 ph\u1ea3n \u00e1nh \u0111\u1ed9 trung th\u1ef1c m\u00e0u s\u1eafc c\u1ee7a v\u1eadt th\u1ec3 khi \u0111\u01b0\u1ee3c ngu\u1ed3n s\u00e1ng chi\u1ebfu t\u1edbi. Ch\u1ec9 s\u1ed1 CRI c\u00f3 t\u1ea7m quan tr\u1ecdng r\u1ea5t l\u1edbn trong thi\u1ebft k\u1ebf chi\u1ebfu s\u00e1ng, CRI c\u00e0ng cao th\u00ec m\u1ee9c \u0111\u1ed9 \u0111\u1eb9p, m\u1ee9c \u0111\u1ed9 ch\u00e2n th\u1ef1c, s\u1ed1ng \u0111\u1ed9ng c\u1ee7a v\u1eadt th\u1ec3 c\u00e0ng cao.<\/p>\n

I. Ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u CRI l\u00e0 g\u00ec?<\/strong><\/h2>\n

Ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u CRI l\u00e0 ch\u1ec9 s\u1ed1 ph\u1ea3n \u00e1nh s\u1ef1 trung th\u1ef1c c\u1ee7a \u00e1nh s\u00e1ng, \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 th\u00f4ng qua s\u1ef1 trung th\u1ef1c c\u1ee7a m\u00e0u s\u1eafc v\u1eadt th\u1ec3 khi \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng \u0111\u00f3 chi\u1ebfu v\u00e0o.<\/p>\n

CRI l\u00e0 t\u1eeb vi\u1ebft t\u1eaft c\u1ee7a\u00a0C<\/strong>olor\u00a0R<\/strong>endering\u00a0I<\/strong>ndex th\u01b0\u1eddng c\u00f3 c\u00e1c t\u00ean g\u1ecdi \u0111\u1ed9 ho\u00e0n m\u00e0u, ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u.<\/p>\n

Ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u c\u1ee7a \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi (\u00e1nh s\u00e1ng t\u1ef1 nhi\u00ean) \u0111\u01b0\u1ee3c l\u1ea5y l\u00e0m chu\u1ea9n, \u0111\u1ec3 so s\u00e1nh v\u00e0 x\u00e1c \u0111\u1ecbnh m\u00e0u c\u1ee7a c\u00e1c ngu\u1ed3n \u00e1nh s\u00e1ng nh\u00e2n t\u1ea1o.<\/p>\n

Quy \u01b0\u1edbc \u0111\u1ed9 ho\u00e0n m\u00e0u\u00a0c\u1ee7a \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi l\u00e0 CRI =100. C\u00e1c ngu\u1ed3n s\u00e1ng t\u1ed1t l\u00e0 c\u00e1c ngu\u1ed3n s\u00e1ng c\u00f3 ch\u1ec9 s\u1ed1\u00a0CRI\u00a0t\u1eeb 80 \u2013 95.<\/strong><\/p>\n

\u1ee8ng d\u1ee5ng ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u CRI<\/strong><\/h3>\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
Ch\u1ec9 s\u1ed1 CRI<\/strong><\/td>\nCh\u1ea5t l\u01b0\u1ee3ng \u00e1nh s\u00e1ng<\/strong><\/td>\n<\/tr>\n
CRI 100<\/td>\n\u00c1nh s\u00e1ng m\u1eb7t tr\u1eddi (c\u00f3 \u0111\u1ed9 trung th\u1ef1c cao nh\u1ea5t)<\/td>\n<\/tr>\n
CRI 85-95<\/td>\nC\u00e1c lo\u1ea1i \u0111\u00e8n Led cao c\u1ea5p, hay \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong phim tr\u01b0\u1eddng, x\u01b0\u1edfng in m\u00e0u, tri\u1ec3n l\u00e3m tranh \u1ea3nh, showroom cao c\u1ea5p, \u2026<\/td>\n<\/tr>\n
CRI 70-85<\/td>\n\u0110a ph\u1ea7n c\u00e1c lo\u1ea1i \u0111\u00e8n chi\u1ebfu s\u00e1ng d\u00e2n d\u1ee5ng<\/td>\n<\/tr>\n
CRI < 50<\/td>\nC\u00e1c lo\u1ea1i \u0111\u00e8n k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng, khi\u1ebfn m\u00e0u s\u1eafc v\u1eadt th\u1ec3 b\u1ecb thay \u0111\u1ed5i m\u1ea1nh<\/td>\n<\/tr>\n
CRI 0<\/td>\n\u00c1nh s\u00e1ng \u0111\u01a1n s\u1eafc (\u00e1nh s\u00e1ng xanh, \u0111\u1ecf, t\u00edm v\u00e0ng\u2026) \u00c1nh s\u00e1ng n\u00e0y l\u00e0m m\u00e0u s\u1eafc v\u1eadt th\u1ec3 b\u1ecb thay \u0111\u1ed5i ho\u00e0n to\u00e0n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

T\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u CRI<\/strong><\/h3>\n

Ch\u1ec9 s\u1ed1 CRI th\u00ea\u0309 hi\u00ea\u0323n ch\u00e2\u0301t l\u01b0\u01a1\u0323ng a\u0301nh sa\u0301ng cu\u0309a \u0111e\u0300n va\u0300 a\u0309nh h\u01b0\u01a1\u0309ng tr\u01b0\u0323c ti\u00ea\u0301p \u0111\u00ea\u0301n ma\u0300u s\u0103\u0301c, \u0111\u00f4\u0323 trung th\u01b0\u0323c cu\u0309a v\u00e2\u0323t \u0111\u01b0\u01a1\u0323c chi\u00ea\u0301u sa\u0301ng.\u00a0CRI c\u00e0ng cao th\u00ec m\u1ee9c \u0111\u1ed9 \u0111\u1eb9p, m\u1ee9c \u0111\u1ed9 ch\u00e2n th\u1ef1c, s\u1ed1ng \u0111\u1ed9ng c\u1ee7a v\u1eadt th\u1ec3 c\u00e0ng cao.
\nN\u00ean khi \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a \u0111\u00e8n chi\u1ebfu s\u00e1ng n\u00f3i chung v\u00e0 \u0111\u00e8n led n\u00f3i ri\u00eang, CRI nh\u1eb1m gi\u00fap c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 \u0111\u00e1nh gi\u00e1 m\u1ed9t s\u1ea3n ph\u1ea9m \u0111\u00e8n chi\u1ebfu s\u00e1ng l\u00e0 t\u1ed1t hay kh\u00f4ng?<\/p>\n

II. Ph\u00e2n bi\u1ec7t v\u1ec1 ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u CRI v\u00e0 Ra<\/strong><\/h2>\n

– V\u1ec1 k\u1ef9 thu\u1eadt, CRI \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m tr\u00ean 15 m\u1eabu m\u00e0u \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u00e1nh s\u00e1ng c\u00f3 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u00e1nh s\u00e1ng t\u1ef1 nhi\u00ean (\u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi) hay kh\u00f4ng.<\/p>\n

\"\"
\u0110\u1ed9 ho\u00e0n m\u00e0u th\u1ec3 hi\u1ec7n khi v\u1eadt th\u1ec3 \u0111\u01b0\u1ee3c chi\u1ebfu c\u00f3 nhi\u1ec1u m\u00e0u s\u1eafc trong 15 m\u00e0u tr\u00ean<\/figcaption><\/figure>\n

– D\u1ef1a v\u00e0o nh\u1eefng t\u00ednh to\u00e1n k\u1ef9 thu\u1eadt, CRI \u0111\u01b0\u1ee3c chia l\u00e0m 2 lo\u1ea1i l\u00e0 CRI Ra v\u00e0 CRI t\u1ed5ng h\u1ee3p:<\/p>\n

+ Chi s\u1ed1 Ra l\u00e0 gi\u00e1 tr\u1ecb m\u00e0u s\u1eafc trung b\u00ecnh t\u1eeb R1 \u0111\u1ebfn R8, l\u00e0 ch\u1ec9 s\u1ed1 c\u01a1 b\u1ea3n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u1ea5t.
\nL\u01b0u \u00fd: gi\u00e1 tr\u1ecb m\u00e0u s\u1eafc t\u1eeb R9 \u2013 R15 kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n

+ CRI t\u1ed5ng h\u1ee3p l\u00e0 gi\u00e1 tr\u1ecb m\u00e0u s\u1eafc t\u1eeb R1 \u0111\u1ebfn R15.<\/p>\n

CRI t\u1ed5ng h\u1ee3p ph\u1ea3n \u00e1nh m\u00e0u s\u1eafc c\u1ee7a c\u00e1c m\u00e0u b\u00e3o h\u00f2a nh\u01b0 v\u00e0ng \u0111\u1eadm (R10) ho\u1eb7c xanh olive \u0111\u1eadm (R14) ch\u00e2n th\u1ef1c h\u01a1n m\u00e0 Ra kh\u00f4ng c\u00f3.<\/p>\n

– H\u1ea7u h\u1ebft thu\u1eadt ng\u1eef CRI \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 n\u00f3i v\u1ec1 Ra (R1-R8). Tuy nhi\u00ean, t\u1ea1i m\u1ed9t s\u1ed1 n\u01b0\u1edbc ch\u00e2u \u00c2u, CRI l\u1ea1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 n\u00f3i v\u1ec1 CRI t\u1ed5ng h\u1ee3p (R1- R15).<\/p>\n

Th\u00f4ng th\u01b0\u1eddng, Ra \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean h\u01a1n CRI t\u1ed5ng h\u1ee3p. Nh\u01b0ng n\u1ebfu hi\u1ec3u \u0111\u00fang v\u1ec1 kh\u00e1i ni\u1ec7m, ch\u00fang ta s\u1ebd c\u00f3 g\u00f3c nh\u00ecn ch\u00ednh x\u00e1c h\u01a1n khi th\u1ea3o lu\u1eadn v\u1ec1 CRI v\u00e0 s\u1ebd c\u00f3 nh\u1eefng l\u1ef1a ch\u1ecdn th\u00f4ng minh h\u01a1n trong nh\u1eefng d\u1ef1 \u00e1n quan tr\u1ecdng ch\u1ea5t l\u01b0\u1ee3ng m\u00e0u s\u1eafc.<\/p>\n","protected":false},"excerpt":{"rendered":"

Ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u CRI l\u00e0 ch\u1ec9 s\u1ed1 ph\u1ea3n \u00e1nh \u0111\u1ed9 trung th\u1ef1c m\u00e0u s\u1eafc c\u1ee7a v\u1eadt th\u1ec3 khi \u0111\u01b0\u1ee3c ngu\u1ed3n s\u00e1ng chi\u1ebfu t\u1edbi. Ch\u1ec9 s\u1ed1 CRI c\u00f3 t\u1ea7m quan tr\u1ecdng r\u1ea5t l\u1edbn trong thi\u1ebft k\u1ebf chi\u1ebfu s\u00e1ng, CRI c\u00e0ng cao th\u00ec m\u1ee9c \u0111\u1ed9 \u0111\u1eb9p, m\u1ee9c \u0111\u1ed9 ch\u00e2n th\u1ef1c, s\u1ed1ng \u0111\u1ed9ng c\u1ee7a v\u1eadt th\u1ec3 c\u00e0ng […]\n","protected":false},"author":1,"featured_media":968,"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":1396,"vi":872},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/posts\/1396"}],"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=1396"}],"version-history":[{"count":1,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/posts\/1396\/revisions"}],"predecessor-version":[{"id":1402,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/posts\/1396\/revisions\/1402"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/media\/968"}],"wp:attachment":[{"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/media?parent=1396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/categories?post=1396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demo9.thuythu.vn\/ecolighting\/wp-json\/wp\/v2\/tags?post=1396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}