Zazzabi Launi na LED
Tunda mafi yawan hasken da ke fitowa daga wurin hasken gabaɗaya ana kiransa farin haske, ana amfani da zafin tebur ɗin launi ko kuma yanayin zafin launi mai alaƙa da hasken hasken don nuni zuwa matakin da launin hasken yake da ɗan fari don ƙididdige hasken. aikin launi na tushen haske. Bisa ga ka'idar Max Planck, daidaitaccen jikin baƙar fata tare da cikakken sha da aikin rediyo yana da zafi, kuma zafin jiki yana ƙaruwa a hankali, kuma hasken yana canzawa daidai; Baƙar fata wuri a kan ma'aunin launi na CIE yana nuna tsarin tsarin jikin baƙar fata ja-orange-rawaya-rawaya-fari-fari-blue-fari. Yanayin zafin da baƙar fata ke ɗumi zuwa iri ɗaya ko kusa da tushen haske ana bayyana shi azaman yanayin launi mai alaƙa na tushen hasken, wanda ake kira cikakken zafin jiki K (Kelvin ko Kelvin) (K=°C+273.15) . Saboda haka, lokacin da baƙar fata ya yi zafi zuwa launin ja, zafin jiki yana kusan 527 ° C, wato, 800 K, kuma sauran yanayin zafi yana rinjayar canjin launi.
Yawancin launi mai haske shine shuɗi, mafi girman yawan zafin jiki; launin ja shine ƙananan zafin launi. Launin hasken rana kuma yana canzawa tare da lokaci: mintuna 40 bayan fitowar rana, launin haske ya fi rawaya, zafin launi shine 3,000K; ranan tsakar rana fari ce, tana tashi zuwa 4,800-5,800K; Da tsakar rana a ranakun gizagizai, kusan 6,500K; kafin faduwar rana, launin ja ne kuma zafin launi yana raguwa zuwa 2,200K. Matsakaicin yanayin zafin launi na sauran hanyoyin haske, saboda yanayin zafin launi mai alaƙa shine ainihin baƙar fata radiyon da ke gabatowa launin tushen hasken, ƙimar ƙimar aikin tushen hasken ba daidaitaccen launi bane, don haka hanyoyin hasken biyu tare da iri ɗaya. ƙimar zafin launi, Har yanzu ana iya samun wasu bambance-bambance a cikin bayyanar launin haske. Zazzaɓin launi kaɗai ba zai iya fahimtar ikon ma'anar launi na tushen haske zuwa abu ba, ko kuma yadda launin abu ke sake haifuwa a ƙarƙashin tushen hasken.
Yanayin zafin launi mai alaƙa don wurare daban-daban na tushen haske
Ranar gajimare 6500-7500k
Hasken rana na bazara a tsakar rana 5500K
Karfe halide fitila 4000-4600K
Hasken rana da rana 4000K
Hasken launi mai sanyi 4000-5000K
Babban matsi na mercury fitila 3450-3750K
Hasken launi mai dumi 2500-3000K
Halogen fitila 3000K
Hasken kyandir 2000K
Yanayin zafin launi na tushen hasken ya bambanta kuma launin haske ya bambanta. Yanayin launi yana ƙasa da 3300K, akwai yanayin kwanciyar hankali, jin zafi; zafin launi yana da 3000--5000K don matsakaicin zafin launi, kuma akwai jin dadi; zafin launi yana da jin sanyi sama da 5000K. Launuka masu haske daban-daban na tushen haske daban-daban sun zama yanayi mafi kyau.
Yanayin zafin launi shine tsinkayen ido na ɗan adam game da masu haske ko farar haske. Wannan ji ne na ilimin lissafi. Abubuwan hadaddun abubuwa masu rikitarwa da rikitarwa na ilimin lissafi da ilimin halin dan Adam suma sun bambanta da mutum zuwa mutum. Za a iya canza yanayin zafin launi ta hanyar ɗan adam akan TV (mai haskakawa) ko ɗaukar hoto (mai nunawa). Misali, muna amfani da fitilar zafi mai zafi 3200K (3200K) don daukar hoto, amma muna ƙara jan tacewa zuwa ruwan tabarau. Tace ta ɗan haske ja yana sa hoton yayi ƙasa da zafin launi; Hakazalika, za mu iya rage dan kadan ja akan TV (amma ragewa da yawa zai shafi aikin ja na al'ada) don sanya hoton ya zama ɗan dumi.
Zaɓin zafin launi yana ƙaddara ta mutane. Wannan yana da alaƙa da yanayin yau da kullun da muke gani. Misali, a cikin mutanen da ke kusa da equator, matsakaicin zafin launi da ake gani kowace rana shine 11000K (8000K (magariba) ~ 17000K (na rana)). Don haka na fi son yanayin zafi mai launi (wanda ya fi dacewa). Sabanin haka, mutanen da ke da manyan latitudes (matsakaicin zafin jiki na launi na kusan 6000K) sun fi son ƙananan zafin jiki (5600K ko 6500K), wanda ke nufin idan kun yi amfani da babban TV ɗin zazzabi mai launi don nuna yanayin yanayin Arctic, yana da alama ya zama kore; akasin haka, idan kun yi amfani da TV ɗin zazzabi mai ƙarancin launi don ganin salon yanayin ƙasa, za ku ji ɗan ja.
Yaya ake ayyana zafin launi na talabijin ko allon nuni? Saboda matsakaicin zafin launi a cikin yanayin kasar Sin ya kai kimanin 8000K zuwa 9500K a duk shekara, aikin gidan talabijin na shirin ya dogara ne akan yanayin launi na mai kallo na 9300K. Duk da haka, saboda yanayin zafin launi a Turai da Amurka ya bambanta da namu, matsakaicin zafin launi na duk shekara yana kusan 6000K. Don haka, idan muka kalli waɗannan fina-finai na ƙasashen waje, za mu ga cewa 5600K ~ 6500K shine mafi dacewa don kallo. Tabbas, wannan bambance-bambancen yana sa mu ji cewa idan muka ga allon kwamfuta ko TV a Turai da Amurka, muna jin cewa zafin launi yana da ja da dumi, wasu kuma ba su dace ba.