Ibisobanuro byimbaraga za Luminous
-KORESHA ubumenyi bwibanze
1. Isesengura ryibisanzwe bikoreshwa mumashanyarazi
Igice cyo gupima ubukana bwa luminous yumubiri ni:
1. Igice cyo kumurika: Lux
2. Luminous flux unit: Lumen
3. Igikoresho cyaka cyane: Imbaraga za buji
Hano banza usobanure 1CD (itara rya buji: Candela): bivuga ikintu kimurika rwose, aho ubukonje bwa platine, ubukana bwumurambararo bwa santimetero kare mirongo itandatu.
Ongera usobanure 1Lux (lux): bivuga kumurika iyo flux flux yakiriwe kuri metero kare ni lumen 1. Isano iri hagati yo kumurika, kumurika nintera ni: E (illuminance) = I (luminosity) / r2 (intera kare)
Hanyuma, sobanura 1L (lumens): urumuri rwumucyo wa CD ya buji ya CD 1 irasa mu ndege ifite intera ya cm 1 nubuso bwa cm 1 2.
2. LED yamashanyarazi yibice kugirango ikureho gushidikanya
Amatara akomeye nka LED n'amatara yaka cyane akoresha urumuri rwa buji (CD) nkigice cyimbaraga zumucyo. Luminous (L) luminous flux ibice bikoreshwa mubintu byerekana cyangwa byinjira. Igice cyo kumurika Lux gikoreshwa mugufotora no mubindi bice. Ibi bice bitatu byo gupima birangana, ariko bigomba kumvikana muburyo butandukanye. Kurugero, urumuri (luminous flux) rwumushinga wa LCD ni lumens 1600. Niba iteganijwe kuri santimetero 60 (metero kare 1) ecran yose yerekana, kumurika ni 1600 lux. Dufashe ko urumuri ruri kuri cm 1 uvuye kumucyo kandi ubuso bwumucyo ni cm 1, noneho ubukana bwurumuri bwumucyo ni 1600CD. Ariko, mubyukuri, kubera gutakaza itumanaho ryumucyo, gutekereza cyangwa gutakaza firime yohereza urumuri rwumushinga wa LCD, urumuri rwayo rushobora kugera kuri 50% neza. Ukurikije ubunararibonye bwa porogaramu, ecran ya LED yo hanze igomba kuba ifite umucyo urenga 4000CD / m2 kugirango ubone ingaruka nziza yo kwerekana munsi yizuba. Kuri LED isanzwe yo mu nzu, umucyo ntarengwa ni 700 kugeza 2000 CD / m2.
Hanyuma, twakagombye kumenya ko ubukana bwumucyo butangwa nu ruganda rwa LED bivuga aho LED yaka kuri mA 20, hamwe nuburemere bwurumuri kumurongo mwiza wo kureba kandi umwanya wo hagati ni munini. Muri ubu buryo, nubwo ubukana bwurumuri bwa LED imwe iri mubice bya CD, ubukana bwayo butagira aho buhuriye nibara rya LED. Muri rusange, ubukana bwumucyo bwumuyoboro umwe bugomba kuva kuri mCD nkeya kugeza 5000mCD.
