footcandle meter

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• footcandle meter — noun : a direct reading illuminometer calibrated in footcandles …   Useful english dictionary

• Foot-candle — A foot candle (sometimes foot candle; abbreviated fc, lm/ft², or sometimes ft c) is a non SI unit of illuminance or light intensity widely used in photography, film, television, and the lighting industry. The unit is defined as the amount of… …   Wikipedia

• Lux —   The unit of illuminance equivalent to 1lumen per square meter.   ***   A unit of illumination equal to the direct illumination on a surface that is everywhere one meter from a uniform point source of one candle; a unit of illumination that is… …   Energy terms

• Conversion of units — is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors. Contents 1 Techniques 1.1 Process 1.2 Multiplication factors …   Wikipedia

• lux — F/A/V a contraction of the words luminance and flux; metric version of footcandle. TV A metric unit of illumination equal to the light of a candle falling on a surface of one square meter. One lux equals 0.0929 foot candle …   Audio and video glossary

• footlambert — (fL, fl or ftL)    a unit of luminance, the brightness of a surface. The footlambert describes the luminance of a surface that emits or reflects one lumen per square foot; it is the luminance of a perfectly reflecting surface under an… …   Dictionary of units of measurement