Kia mārama ai ki te CRI me ngā lumens

Pērā i ngā āhuatanga maha atu o te pūtaiao tae, me hoki tātou ki te tohatoha mana hihinga o te pūtake mārama.
Ka tatauhia te CRI mā te tirotiro i te whānuitanga o te māramatanga, kātahi ka whakatauira me te whakatairite i te whānuitanga e whakaata ana i tētahi huinga tauira tae whakamātautau.
Ka tatau te CRI i te SPD o te awatea, te SPD rānei o te tinana pango, nō reira, ko te CRI teitei ake e tohu ana he rite te whānuitanga o te mārama ki te mārama o te awatea tūturu (ngā CCT teitei ake) ki te rama halogen/incandescent rānei (ngā CCT iti iho).

Ko te kanapa o te pūtake mārama ka whakaahuahia e tōna putanga mārama, e inehia ana i roto i ngā lumens. Ko te kanapa, i tētahi atu taha, he mea hanga noa iho e te tangata! Ka whakatauhia e ngā roangaru e tino aro atu ana ō tātou kanohi ki a ia me te nui o te pūngao mārama kei roto i aua roangaru. Ka kiia e tātou ngā roangaru ultraviolet me te infrared he "kore e kitea" (arā, kāore he kanapa) nā te mea kāore ō tātou kanohi e "kohikohi" i ēnei roangaru hei kanapa e kitea ana, ahakoa te nui o te pūngao kei roto i a rātou.
Te Mahi o te Kanapatanga

I te tīmatanga o te rautau rua tekau, i whakawhanakehia e ngā kaipūtaiao he tauira o ngā pūnaha tirohanga tangata kia pai ake ai te mārama ki te mahi a te āhuatanga o te kanapa, ā, ko te mātāpono matua kei muri ko te mahi kanapa, e whakaahua ana i te whanaungatanga i waenga i te roangaru me te tirohanga o te kanapa.

Ko te kōpiko kōwhai te tohu mō te mahi whakaahua paerewa (kei runga)
Ka eke te kōpiko kanapa ki te tihi i waenga i te 545-555 nm, e rite ana ki te awhe roanga ngaru tae kakariki-rima, ā, ka tere te heke i ngā roanga ngaru teitei ake, iti iho rānei. He mea nui, he tino iti ngā uara kanapa i tua atu i te 650 nm, e rite ana ki ngā roanga ngaru tae whero.
Ko te tikanga o tēnei, kāore e whai hua ngā roangaru tae whero, me ngā roangaru tae kikorangi pouri me te waiporoporo, ki te whakamārama i te kanapa o ngā mea. Ko ngā roangaru kakariki me te kōwhai, i tētahi atu ringa, koia te mea tino whai hua ki te whakamārama i te kanapa. Tērā pea ka whakamāramahia he aha i whakamahia ai e ngā koti haumaru me ngā rama whakamārama ngā tae kōwhai/kakariki hei whakatutuki i tō rātou kanapa ōrite.
Hei whakamutunga, ina whakaritea te mahi kanapa ki te whānuitanga mō te awatea tūturu, me mārama he aha te take e taupatupatu ai te CRI teitei, inā koa te R9 mō ngā whero, ki te kanapa. He pai tonu te whānuitanga whānui ake, whānui ake i te whai i te CRI teitei, engari ko te whānuitanga whaiti ake e arotahi ana ki te awhe roangaru kakariki-kōwhai ka tino whai hua i te whai i te kaha kanapa teitei ake.

Ko te kounga tae me te CRI e tata ana ki te waiho i te mea nui i roto i te whai i te whai huatanga o te pūngao mō tēnei take. Kia tika, ko ētahi tono, pērā irama o waho, tera pea ka nui ake te aro ki te whai huatanga i te whakaputa tae. I tētahi atu taha, ko te mārama me te maioha ki ngā āhuatanga ahupūngao e whai wāhi ana ka tino whai hua ki te whakatau whai whakaaro i roto i ngā tāutanga rama.