Don fahimtar CRI da lumens

Kamar yadda yake da sauran fannonin kimiyyar launi, dole ne mu koma ga rarraba wutar lantarki mai ban mamaki na tushen haske.
Ana ƙididdige CRI ta hanyar yin la'akari da bakan tushen haske sannan kuma yin kwatancen da kwatanta bakan wanda zai nuna saitin samfuran launi na gwaji.
CRI tana ƙididdige hasken rana ko baƙar fata SPD, don haka CRI mafi girma yana nuna cewa hasken bakan yana kama da hasken rana (mafi girma CCTs) ko halogen / hasken wuta (ƙananan CCTs).

An kwatanta hasken tushen haske ta hanyar fitowar haskensa, wanda aka auna shi da lumens. Haske, a daya bangaren, gaba daya ginin mutum ne! Ana ƙayyade ta tsawon zangon da idanunmu suka fi dacewa da shi da kuma adadin kuzarin hasken da ke cikin waɗannan tsawon zangon. Muna kira ultraviolet da infrared wavelengths "marasa ganuwa" (watau, ba tare da haske ba) saboda kawai idanuwanmu ba sa "ɗauka" waɗannan tsawon raƙuman ruwa kamar yadda aka gane haske, ba tare da la'akari da adadin kuzari a cikinsu ba.
Ayyukan Haske

Masana kimiyya a farkon karni na ashirin sun ɓullo da tsarin tsarin hangen nesa na ɗan adam don ƙarin fahimtar yadda abin da ke faruwa na haske ke aiki, kuma ainihin ka'idar da ke bayansa ita ce aikin haske, wanda ke bayyana dangantakar dake tsakanin raƙuman ruwa da tsinkayen haske.

Layin rawaya yana wakiltar daidaitaccen aikin hoto (a sama)
Ƙunƙarar hasken haske tana hawa tsakanin 545-555 nm, wanda yayi daidai da kewayon tsayin launi na lemun tsami, kuma da sauri yana faɗuwa a mafi girma da ƙananan raƙuman ruwa. Mahimmanci, ƙimar haske sun yi ƙasa sosai fiye da nm 650, wanda yayi daidai da tsayin launin ja.
Wannan yana nufin tsayin raƙuman launin ja, da kuma shuɗi mai duhu da tsayin launin violet, ba su da tasiri wajen sa abubuwa su zama masu haske. Green da rawaya raƙuman raƙuman ruwa, a gefe guda, sun fi tasiri wajen bayyanar da haske. Wannan na iya bayyana dalilin da yasa manyan rigunan tsaro da masu haskakawa sukan yi amfani da launin rawaya/kore don cimma haskensu na dangi.
A ƙarshe, idan muka kwatanta aikin haske zuwa bakan don hasken rana, ya kamata a bayyana a fili dalilin da yasa babban CRI, musamman R9 don jajayen ja, ke cin karo da haske. Cikakkun bakan, faɗin bakan kusan koyaushe yana da fa'ida yayin neman babban CRI, amma kunkuntar bakan da aka mayar da hankali a cikin kewayon tsayin tsayin kore-rawaya zai zama mafi inganci yayin neman ingantaccen inganci.

Ingancin launi da CRI kusan koyaushe ana mayar da su cikin fifiko a cikin neman ingantaccen makamashi saboda wannan dalili. Don yin gaskiya, wasu aikace-aikace, kamarfitilu na waje, na iya ba da fifiko mafi girma akan inganci fiye da ma'anar launi. Fahimta da kuma godiya ga ilimin kimiyyar lissafi da abin ya shafa, a gefe guda, na iya zama da amfani sosai wajen yanke shawara mai zurfi a cikin na'urori masu haske.