The Lighting Handbook ZG

| Kategorie: Firemní tiskovina  | Tento dokument chci!

Vydal: ZG Lighting Czech Republic s.r.o

Strana 10 z 244







Poznámky redaktora
10 The Lighting Handbook Luminous flux Luminous intensity Illuminance Luminance Basic parameters used lighting Luminous flux Φ Luminance L Lumen [lm] [lm/sr*m2]=[cd/m2] Luminous intensity Illuminance E Candela [lm/sr]=[cd] Lux [lm/m2]=[lx] Ω solid angle into which luminous flux emitted area hit luminous flux AL cos = visible areas light source ρ reflectance area = 3.14 for diffuse surface areas Ι =     Φ   Ω E Φ A L = Ι AL cos L = E ρ*