1. Luminous flux:
Ingufu zitangwa nisoko yumucyo mumwanya ukikije umwanya umwe kandi bigatera imyumvire igaragara yitwa luminous flux Φ Yerekanwa muri lumens (Lm).
2. Imbaraga z'umucyo:
Luminous flux irabagirana nisoko yumucyo mubyerekezo byihariye mubice bimwe bikomeye byitwa luminous ubukana bwumucyo uturuka muricyo cyerekezo, bita ubukana bwumucyo mugihe gito.Yerekanwa nikimenyetso I, muri candela (Cd), I = Φ / W。
3. Kumurika:
Luminous flux yemewe kumuhanda windege yitwa illuminance, igaragarira muri E, kandi igice ni lux (Lx), E = Φ / S.
4. Ubucyo:
Ubukomezi bwumucyo kumurika kumwanya wa projection mugice cyerekezo cyiswe umucyo, bigaragarira muri L, kandi igice ni candela kuri metero kare (Cd / m).
5. Ubushyuhe bw'amabara:
Iyo ibara ryasohowe nisoko yumucyo ni kimwe nibara ryasohowe numwirabura washyutswe nubushyuhe runaka, byitwa ubushyuhe bwamabara yinkomoko yumucyo, mu magambo ahinnye nkubushyuhe bwamabara.
Isano yo guhinduranya itaziguye ya LED yamurika igiciro
Luminous flux ya 1 lux = 1 lumen igabanijwe neza kubuso bwa metero kare 1
1 lumen = luminous flux itangwa nisoko yumucyo utanga urumuri rufite urumuri rwa buji 1 mubice bikomeye.
1 lux = kumurika byakozwe nisoko yumucyo utanga urumuri rwinshi rwa buji 1 kumurongo hamwe na radiyo ya metero 1