Guhuza amabara na SDMC ni iki?

Kwihanganira amabara: Nigitekerezo gifitanye isano n'ubushyuhe bwamabara. Iki gitekerezo cyatanzwe mbere na Kodak mu nganda, Abongereza ni Standard Deviation yo Guhuza Ibara, bita SDCM. Ni itandukaniro hagati ya mudasobwa yabazwe nagaciro gasanzwe kerekana intego yumucyo. Nukuvuga, kwihanganira ibara bifite aho bihurira nurumuri ruturuka.

Ibikoresho bifotora byasesenguye ibara ryubushyuhe bwurwego rwumucyo wapimwe, hanyuma rukagena agaciro gasanzwe k'ubushyuhe. Iyo ubushyuhe bwamabara ari bumwe, bugena agaciro k ibara ryacyo rihuza xy nibitandukaniro hagati yacyo nisoko isanzwe yumucyo. Ninini yihanganira ibara, niko itandukaniro ryibara. Igice cyibi bihanganira ibara ni SDCM,. Kwihanganira Chromatic bigena itandukaniro ryamabara yoroheje yicyiciro cyamatara. Urwego rwo kwihanganira ibara rusanzwe rwerekanwa ku gishushanyo nka ellipse aho kuba uruziga. Ibikoresho rusange byumwuga bifite urwego rwo gupima amakuru yihariye, kandi inganda zimwe na zimwe za LED zipakira hamwe ninganda zimurika zifite ibikoresho byumwuga.

Dufite imashini yipimisha muri santeri yo kugurisha no muruganda, buri sample hamwe nigice cyambere cyibicuruzwa (harimo COB LED STRIP, NEON FLEX, SMD LED STRIP NA RGB LED STRIP) bizageragezwa, kandi umusaruro mwinshi uzakorwa nyuma yo gutsinda ikizamini. Twebwe kandi dushyiramo itara ryamatara ubwacu, rishobora kugenzurwa neza binini yumucyo wa LED.

Bitewe nuburyo butandukanye bwibara ryakozwe numucyo wera LED, igipimo cyoroshye cyo kwerekana urugero rwamabara atandukanye mugice cya LED ni umubare wa SDCM (MacAdam) ellips intambwe LED zigwamo. Niba LED zose ziguye muri 1 SDCM (cyangwa "intambwe ya 1 yintambwe ya MacAdam"), abantu benshi ntibabura kubona itandukaniro ryamabara. Niba ibara ritandukana nkiryo gutandukana muri chromaticity bigera kuri zone ikubye kabiri (2 SDCM cyangwa ellipse yintambwe 2 ya MacAdam), uzatangira kubona itandukaniro ryibara. Intambwe 2 yintambwe ya MacAdam iruta zone yintambwe 3, nibindi.

Nyamara, hari ibintu byinshi bigira ingaruka ku kwihanganira ibara, nkimpamvu za chip ya LED, impamvu yo kugereranya ifu ya fosifore, impamvu yo guhindura imashanyarazi, nuburyo itara naryo rizagira ingaruka kuri ubushyuhe bwamabara. Impamvu yo kugabanuka kwumucyo no gusaza kwihuta kwisoko yumucyo, ubushyuhe bwamabara yibara rya LED nabyo bizagaragara mugihe cyo kumurika, bityo amatara amwe ubu asuzuma ubushyuhe bwamabara kandi akapima ubushyuhe bwamabara muburyo bwo kumurika mubyukuri igihe. Ibipimo byo kwihanganira amabara birimo amahame yo muri Amerika ya ruguru, ibipimo bya IEC, ibipimo by’i Burayi nibindi. Muri rusange ibyo dusabwa kugirango LED yihangane ni 5SDCM. Muri uru rwego, amaso yacu atandukanya cyane cyane aberration.