CRI yog dab tsi thiab yuav xaiv cov teeb pom kev zoo li cas?

Xim Rendering Index (CRI) yog ib qho kev sib koom ua ke thoob ntiaj teb rau kev txhais cov xim rendering ntawm lub teeb ci. Nws yog tsim los muab kev ntsuam xyuas qhov tseeb ntawm qhov degree uas cov xim ntawm ib yam khoom nyob rau hauv qhov ntsuas lub teeb pom kev zoo raws li cov xim uas nthuav tawm hauv qab qhov siv lub teeb ci. Lub Commission internationale de l' eclairage (CIE) muab cov xim rendering Performance index ntawm tshav ntuj ntawm 100, thiab cov xim rendering Performance index ntawm incandescent teeb yog heev ze rau lub hnub ci thiab yog li ntawd yog ib tug zoo tagnrho benchmark teeb qhov chaw.

CRI yog ib qho tseem ceeb los ntsuas lub peev xwm ntawm lub teeb ci los tsim cov xim ntawm cov khoom. High CRI tus nqi, lub peev xwm ntawm lub teeb muaj zog los kho cov xim ntawm cov khoom, thiab qhov yooj yim dua rau tib neeg lub qhov muag kom paub qhov txawv xim ntawm cov khoom.

CRI yog ib txoj hauv kev los ntsuas qhov kev ua tau zoo ntawm lub teeb ci hauv kev paub xim piv rau cov qauv teeb pom kev zoo (xws li hnub ci). Nws yog qhov kev lees paub dav dav thiab tib txoj hauv kev los ntsuas thiab tshaj tawm cov xim rendering ntawm lub teeb ci. Xim rendering yog qhov kev ntsuam xyuas zoo uas ntsuas qhov degree uas lub teeb pom kev nthuav qhia cov xim ntawm cov khoom, uas yog, qhov tseeb ntawm cov xim luam tawm yog li cas.
High Lub teeb xim rendering (CRI≥90) tuaj yeem tsim lub teeb muag muag, txo qhov pom kev qaug zog, ua kom pom kev pom tseeb thiab cov duab ntau dua peb sab; nqa cov neeg siv cov xim rendering siab thiab teeb pom kev zoo sab nraum zoov. Cov xim rendering siab muaj cov xim zoo nkauj, thiab cov xim peb pom yog ze rau cov xim thawj xim (xim hauv qab hnub ci); qis xim rendering muaj cov xim tsis zoo, yog li cov xim sib txawv peb pom loj dua.

Yuav ua li cas xaiv xim rendering / xim rendering Performance index thaum yuav khoom teeb pom kev zoo?

Thaum xaiv xim rendering, ob lub hauv paus ntsiab lus feem ntau yog ua raws, uas yog lub hauv paus ntsiab lus ntawm kev ncaj ncees xim rendering thiab lub hauv paus ntsiab lus ntawm cov xim rendering zoo.

(1) Kev ncaj ncees xim rendering txoj cai

Lub hauv paus ntsiab lus ntawm kev ncaj ncees xim rendering txhais tau hais tias nyob rau hauv thiaj li yuav kom meej meej sawv cev ntawm thawj xim ntawm ib yam khoom, lub teeb qhov chaw nrog ib tug ntau dua xim rendering Performance index yuav tsum tau xaiv. Hauv qhov no, kev xaiv tuaj yeem ua raws li tus nqi Ra. Qhov loj dua tus nqi Ra, qhov siab dua qhov kev kho dua tshiab ntawm cov xim qub ntawm cov khoom. Cov ntawv thov sib txawv muaj cov kev cai sib txawv rau kev ncaj ncees xim rendering ntawm lub teeb ci.

Raws li cov chaw sib txawv, International Commission on Illumination (CIE) faib cov xim rendering Performance index rau tsib pawg:

(2) Cov ntsiab lus xim xim

Lub hauv paus ntsiab lus ntawm cov nyhuv xim rendering yog hais tias nyob rau hauv tej scenes xws li nqaij cov khoom zaub txee, nyob rau hauv thiaj li yuav highlight tej xim thiab tso saib lub neej zoo nkauj, ib tug tshwj xeeb xim rendering Performance index yuav tsum tau xaiv. Raws li kev ua kom ntseeg tau tias tus nqi Ra ua tau raws li qhov yuav tsum tau ua, qhov sib thooj xim tshwj xeeb rendering Performance index yog nce raws li xim ntawm cov khoom illuminated.

Nyob rau hauv cov nqaij zaub ntawm cov khw muag khoom noj khoom haus thiab ntau lub khw muag khoom, cov xim rendering Performance index R9 ntawm lub teeb pom kev zoo yog qhov tseem ceeb, vim hais tias cov nqaij xim feem ntau yog beased rau xim liab, thiab ntau dua R9 tuaj yeem ua rau cov nqaij nthuav tawm tshiab thiab qab ntxiag. .

Rau cov scenes xws li theem kev ua tau zoo thiab cov studios uas yuav tsum tau muaj tseeb reproduction ntawm daim tawv nqaij tones, cov xim rendering Performance index R15 ntawm lub teeb qhov chaw yuav tsum tau raws li tus qauv siab.

NthuavKtam sim no

Lub theoretical xim rendering Performance index ntawm incandescent teeb yog 100. Txawm li cas los, nyob rau hauv lub neej, muaj ntau ntau hom ntawm incandescent teeb nrog ntau yam kev siv. Yog li ntawd, lawv cov txiaj ntsig Ra tsis sib xws. Nws tsuas tuaj yeem hais tias ze li ntawm 100, uas yog suav tias yog lub teeb ci nrog cov xim zoo tshaj plaws ua haujlwm. . Txawm li cas los xij, hom teeb pom kev zoo no muaj lub teeb pom kev zoo thiab tsis muaj qhov zoo ntawm kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig. Nyob rau hauv sib piv, txawm hais tias LED teeb yog me ntsis qis dua cov teeb incandescent nyob rau hauv cov nqe lus ntawm cov xim rendering kev ua tau zoo, lawv tau los ua ib tug nrov lub teeb qhov chaw vim lawv lub zog-txuag thiab ib puag ncig tus phooj ywg zog.

Tsis tas li ntawd, yog tias tib neeg lub cev raug rau qhov chaw teeb pom kev zoo nrog cov xim tsis zoo rau kev ua haujlwm ntev ntev, qhov rhiab heev ntawm lub khob hliav qab ntawm tib neeg lub qhov muag yuav maj mam txo qis, thiab lub paj hlwb tuaj yeem tsis quav ntsej ntau ntxiv thaum txheeb xyuas cov khoom, uas tuaj yeem ua tau. yooj yim ua rau qhov muag qaug zog thiab txawm tias myopia.

Cov xim rendering Performance index ntawm cov teeb pom kev hauv chav kawm yuav tsum tsis txhob qis dua 80. Cov xim qis dhau ntawm chav kawm teeb pom kev zoo yuav cuam tshuam rau cov tub ntxhais kawm qhov muag pom qhov tseeb ntawm cov xim ntawm cov khoom, ua rau cov khoom tsis tuaj yeem nthuav tawm lawv cov xim tiag tiag. Yog tias qhov xwm txheej no txuas ntxiv mus ntev, nws yuav ua rau poob qis thiab tsis muaj peev xwm ntawm kev ntxub ntxaug xim, uas yuav ua rau muaj teeb meem tsis pom kev thiab kab mob qhov muag hauv cov tub ntxhais kawm xws li qhov muag tsis pom xim thiab xim tsis muaj zog.

Cov xim rendering Performance index Ra> 90 yog siv rau chaw ua hauj lwm teeb pom kev zoo, nws cov tsos txaus siab tuaj yeem txo qhov illumination ntawm ntau tshaj 25% piv nrog cov teeb pom kev zoo nrog lub teeb xim qis (Ra <60). Cov xim rendering Performance index thiab illumination ntawm lub teeb ci sib koom ua ke txiav txim siab qhov pom kev pom tseeb ntawm ib puag ncig, muaj kev sib raug zoo ntawm illumination thiab xim rendering Performance index.