Lub Teeb Meters - Hom Lub Teeb Meters:
1. Visual illuminometer: siv tsis yooj yim, tsis raug, tsis tshua siv
2. Photoelectric illuminance meter: feem ntau siv selenium photovoltaic illuminance meter thiab silicon photovoltaic illuminance meter
Kev sib xyaw thiab siv cov kev cai ntawm photocell illuminance meter:
1. Composition: Microammeter, hloov pob qhov rooj, xoom taw tes hloov kho, khi ncej, photocell, V (λ) kho lim, thiab lwm yam.
Feem ntau siv selenium (Se) photocell lossis silicon (Si) photocell illuminometer, tseem hu ua lux meter
