Ukuqonda i-CRI kunye ne-lumens

Njengakweminye imiba emininzi yesayensi yombala, kufuneka sibuyele kwi-spectral power distribution yomthombo wokukhanya.
I-CRI ibalwa ngokuhlola i-spectrum yomthombo wokukhanya uze emva koko ulinganise kwaye uthelekise i-spectrum eya kubonakalisa iseti yeesampuli zombala zovavanyo.
I-CRI ibala ukukhanya kwelanga okanye umzimba omnyama i-SPD, ngoko ke i-CRI ephezulu ibonisa ukuba ukukhanya kufana nokukhanya kwelanga kwendalo (ii-CCT eziphezulu) okanye ukukhanya kwe-halogen/incandescent (ii-CCT ezisezantsi).

Ukukhanya komthombo wokukhanya kuchazwa yimveliso yawo ekhanyayo, elinganiswa ngee-lumens. Ukukhanya, kwelinye icala, kukwakhiwa ngumntu ngokupheleleyo! Kumiselwa zii-wavelengths apho amehlo ethu aziva khona kakhulu kunye nobungakanani bamandla okukhanya akhoyo kwezo wavelengths. Sibiza ii-ultraviolet kunye nee-infrared wavelengths ngokuthi "azibonakali" (oko kukuthi, ngaphandle kokukhanya) kuba amehlo ethu "awathathi" la maza njengokukhanya okubonwayo, nokuba angakanani na amandla akhoyo kuwo.
Umsebenzi woKhanya

Izazinzulu ekuqaleni kwenkulungwane yama-20 zaphuhlisa iimodeli zeenkqubo zokubona zabantu ukuze ziqonde ngcono indlela esebenza ngayo le nto yokukhanya, kwaye umgaqo osisiseko emva kwayo ngumsebenzi wokukhanya, ochaza ulwalamano phakathi kobude be-wavelength kunye nokuqonda ukukhanya.

Igophe elimthubi limele umsebenzi oqhelekileyo we-photopic (ngasentla)
Ijika lokukhanya lifikelela kwincopho ephakathi kwe-545-555 nm, ehambelana noluhlu lwamaza ombala oluhlaza okwesibhakabhaka, kwaye lihla ngokukhawuleza kumaza aphezulu naphantsi. Ngokubalulekileyo, amaxabiso okukhanya aphantsi kakhulu ngaphaya kwe-650 nm, ehambelana namaza ombala obomvu.
Oku kuthetha ukuba ubude be-wavelengths bombala obomvu, kunye nobude be-wavelengths bombala oluhlaza okwesibhakabhaka nowe-violet, abusebenzi ekwenzeni izinto zibonakale zikhanya. Ububanzi be-wavelengths obuluhlaza nobemthubi, kwelinye icala, zezona zisebenzayo ekubonakaleni zikhanya. Oku kunokuchaza isizathu sokuba iivesti zokhuseleko ezibonakala kakhulu kunye nee-highlighters zihlala zisebenzisa imibala etyheli/eluhlaza ukuze zifezekise ukukhanya kwazo.
Okokugqibela, xa sithelekisa umsebenzi wokukhanya kunye ne-spectrum yokukhanya kwelanga kwendalo, kufanele kucace ukuba kutheni i-CRI ephezulu, ingakumbi i-R9 ebomvu, ingqubana nokukhanya. I-spectrum epheleleyo nebanzi phantse isoloko iluncedo xa kulandelwa i-CRI ephezulu, kodwa i-spectrum encinci egxile kuluhlu lwamaza okukhanya aluhlaza-otyheli iya kuba yeyona isebenzayo xa kulandelwa ukusebenza okuphezulu kokukhanya.

Umgangatho wombala kunye ne-CRI zihlala zithathwa njengeziphambili xa kujongwa ukusetyenziswa kwamandla ngendlela efanelekileyo ngenxa yesi sizathu. Ukuba sithetha inyani, ezinye izicelo, ezifanaizibane zangaphandle, isenokugxininisa kakhulu ekusebenzeni kakuhle kunokubonisa imibala. Ukuqonda nokuxabisa ifiziksi ebandakanyekayo, kwelinye icala, kunokuba luncedo kakhulu ekwenzeni isigqibo esinolwazi ekufakelweni kwezibane.