Lub teeb qhov chaw ntawm cov xim ntawm tus kwv nws tus kheej yog qhov degree ntawm cov xim rendering, uas yog, qhov degree ntawm tiag tiag xim; xim ntawm cov teeb pom kev zoo los ntawm cov xim rendering index, uas txhais tau hais tias tus kwv nyob rau hauv lub teeb xim tshaj qhov kev siv lub teeb (tshav ntuj) teeb pom kev Xim txawv, tuaj yeem muaj kev cuam tshuam cov xim yam ntxwv ntawm lub teeb ci. Cov xim zoo nkauj ntawm cov teeb pom kev zoo ntawm cov xim, peb yuav pom cov xim yog nyob ze rau qhov xim xim, tsis muaj xim zoo nkauj ntawm lub teeb ntawm qhov tsis zoo ntawm cov xim, peb pom cov xim loj dua. International Commission ntawm Illumination CIE tau tsim lub hnub lub xim rhiav ntawm 100, ntau hom xim xim rendering index txawv, xws li: siab muaj ntsev ntawm lub cev roj teeb rendering Performance Ra = 23, fluorescent raj xim rendering index Ra = 60 ~ 90
Xim faib ua ob hom:
1 xim muaj xim: qhov tseeb ntawm cov xim ntawm cov ntaub ntawv yuav tsum tau siv cov xim siab rendering Performance Index (Ra) lub teeb qhov chaw, qhov nqi ze ntawm 100, qhov zoo tshaj plaws xim rendering. Lub tuam txhab nyob hauv:
2. Cov nyhuv ntawm cov xim: Xav kom meej meej hais txog cov xim tshwj xeeb, kev ua haujlwm ntawm Tebchaws Meskas siv tau qhov xim lub neej ntxiv rau kev txhim khu xim.
Xim rendering Performance index xam txuj:
Lub CIE pom zoo "txoj kev kuaj xim" uas xam qhov ntsuas qhov xim ntawm lub teeb pom kev zoo, siv lub cev dub los yog tus qauv D ntim raws li kev siv lub teeb pom kev, teem nws cov xim rendering Performance index 100 thiab specifying ntau tus qauv xim kuaj kev kuaj ntshav;
Nyob rau hauv lub teeb nyob rau hauv kev xeem thiab tsim tawm ntawm tus qauv coj ntawm cov xim, kev soj ntsuam cov xim ntawm lub teeb qhov chaw yuav tsum tau sim, nrog rau xim qhov index sawv cev. Lub teeb qhov chaw ntawm ib qho qauv coj ntawm cov xim rendering Performance Index raws li qhov tshwj xeeb xim rendering Performance index Ri
Qhov nruab nrab xim rendering Performance index ntawm lub teeb pom kev zoo rau ib hom kev kuaj xim muaj npe raug xa mus raws li cov xim dav hlau Performance index Ra
Xam xais kuaj tau: tsaus xim, tsaus daj, tsaus daj daj, daj-ntsuab, lub teeb xiav-ntsuab, lub teeb xiav, lavender, magenta.
