Illuminetion


Illuminetion :

(Opt) The density of radiant energy falling on a surface and the effectiveness of the radiation in producing a visual effect. Illumination units are the lumen, foot candle, Phot, and lux. One foot-candle = 1 lumen/ft2; one phot = 1 lumen/cm2; and one lux = 1 lumen/m2. Syn: Illuminance

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