Tsev > Txuj ci > Ntsiab lus

Terminology teeb pom kev zoo

1, luminous flux φ nyob lumen [LM];

Teeb thiab cov tib neeg qhov muag tau zog zaum yog cov luminous flux (φ).

2, siv lub teeb l tsev: candela [CD];

Feem ntau, cov teeb yog lus cob qhia sib txawv thiab ntau siv. Pom lub teeb emission siv nyob rau hauv ib qho kev taw qhia lub hu ua tus siv lub teeb (l).

3, illuminance e chav nyob: Lux [LX]; coefficient piv rau ntawm tus luminous flux nrog qhov chaw illuminated.

LX 1lm tis ntawm luminous flux nruab nrab brightness nyob rau hauv cheeb tsam hauv LM2.

4, luminance l tsev: candela/xwmfab ' meter ' [CD/m2];

Qhov muag saib lub reflected kev siv lub teeb nyob hauv ib lub tsheb.

5, cov chav nyob lub teeb nyhuv: lumens ib watt [LM/w];

Tus efficiency ntawm lub zog fais ua lub teeb.