Don fahimtar CRI da lumens

Kamar yadda yake a sauran fannoni da dama na kimiyyar launi, dole ne mu koma ga rarrabawar wutar lantarki ta hasken wata hanya.
Ana ƙididdige CRI ta hanyar bincika bakan tushen haske sannan a kwaikwayi da kwatanta bakan da zai nuna samfurin samfuran launuka na gwaji.
CRI tana ƙididdige hasken rana ko baƙar fata SPD, don haka babban CRI yana nuna cewa hasken yana kama da hasken rana na halitta (mafi girma CCTs) ko hasken halogen/incandescent (ƙananan CCTs).

Ana bayyana hasken tushen haske ta hanyar fitar da haskensa, wanda ake aunawa da lumens. Haske, a gefe guda kuma, gaba ɗaya ginin ɗan adam ne! Ana ƙayyade shi ta hanyar raƙuman ruwa waɗanda idanunmu suka fi saurin amsawa da kuma adadin kuzarin haske da ke cikin waɗannan raƙuman ruwa. Muna kiran raƙuman ultraviolet da infrared "marasa ganuwa" (watau, ba tare da haske ba) saboda idanunmu ba sa "ɗauka" waɗannan raƙuman ruwa a matsayin hasken da ake gani, komai yawan kuzarin da ke cikinsu.
Aikin Haske

Masana kimiyya a farkon karni na ashirin sun ƙirƙiro samfuran tsarin hangen nesa na ɗan adam don fahimtar yadda abin da ke faruwa na haske ke aiki, kuma babban ƙa'idar da ke bayansa ita ce aikin haske, wanda ke bayyana alaƙar da ke tsakanin tsawon rai da fahimtar haske.

Lanƙwasa mai launin rawaya tana wakiltar aikin ɗaukar hoto na yau da kullun (a sama)
Lanƙwasa haske yana kaiwa tsakanin 545-555 nm, wanda yayi daidai da kewayon tsawon launi mai launin lemun tsami-kore, kuma yana raguwa da sauri a tsayin tsayi da ƙasa. A ma'ana, ƙimar haske tana da ƙasa sosai fiye da 650 nm, wanda yayi daidai da tsawon tsayin launi ja.
Wannan yana nufin cewa tsawon launin ja, da kuma tsawon launin shuɗi mai duhu da shuɗi mai launin shuɗi, ba su da tasiri wajen sa abubuwa su yi haske. A gefe guda kuma, tsawon raƙuman kore da rawaya sune mafi tasiri wajen bayyana haske. Wannan zai iya bayyana dalilin da yasa rigunan kariya masu gani da hasken haske galibi suna amfani da launuka masu launin rawaya/kore don cimma haskensu.
A ƙarshe, idan muka kwatanta aikin haske da bakan don hasken rana na halitta, ya kamata a bayyana dalilin da yasa babban CRI, musamman R9 ga ja, yake cikin rikici da haske. Cikakken bakan da ya fi faɗi kusan koyaushe yana da amfani lokacin bin babban CRI, amma ƙaramin bakan da aka mayar da hankali a cikin kewayon raƙuman kore-rawaya zai fi tasiri lokacin neman ingantaccen haske.

Ingancin launi da CRI kusan koyaushe ana mayar da su baya a cikin fifiko wajen neman ingantaccen makamashi saboda wannan dalili. A gaskiya, wasu aikace-aikace, kamarhasken waje, na iya ƙara mai da hankali kan inganci fiye da canza launi. Fahimtar da fahimtar kimiyyar lissafi da ke tattare da ita, a gefe guda, na iya zama da amfani sosai wajen yanke shawara mai kyau a cikin shigar da haske.