footcandle

footcandle
(fc or ftc)
   a traditional unit of illuminance or illumination, defined as the illuminance received by a surface at a distance of one foot from a source of intensity one international candle. The "international candle" was the predecessor of the candela as the standard unit of light intensity. Illuminance is now measured in lux; one footcandle equals 10.764 lux or about 1.0764 milliphot. The unit is also spelled foot-candle or foot candle.

Dictionary of units of measurement. 2015.

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  • Footcandle — Foot|can|dle auch: Foot|cand|le 〈[fụtkændl] f.; , s; Phys.; in angelsächs. Ländern〉 nicht metrische Maßeinheit für die Beleuchtungsstärke, entspricht 10,76 Lux [<engl. foot „Fuß (Maßeinheit, etwa 30,5 cm)“ + candle „Kerze… …   Universal-Lexikon

  • footcandle — Illumination or brightness equivalent to 1 lumen per square foot; replaced in the SI system by the candela. * * * foot·can·dle kan dəl n a unit of illuminance on a surface that is everywhere one foot from a uniform point source of light of one… …   Medical dictionary

  • Footcandle — Foot|can|dle auch: Foot|cand|le 〈[fụtkændl] f.; Gen.: , Pl.: s; Physik; in angelsächs. Ländern〉 nicht metrische Maßeinheit für die Beleuchtungsstärke, entspricht 10,76 Lux [Etym.: <engl. foot »Fuß (Maßeinheit: 30,5 cm)« + candle »Kerze (als… …   Lexikalische Deutsches Wörterbuch

  • Footcandle — Foot|candle [...kændl] die; , s <aus gleichbed. engl. foot candle, eigtl. »Fußkerze«> engl. u. nordamerik. physikalische Einheit der Beleuchtungsstärke (10,76 Lux; Phys.) …   Das große Fremdwörterbuch

  • Footcandle —   A unit of illuminance on a surface that is one foot from a uniform point source of light of one candle and is equal to one lumen per square foot.   California Energy Comission. Dictionary of Energy Terms …   Energy terms

  • footcandle — F/A/V abbreviated as Ftc, it is an English unit of measure expressing the intensity of light illuminating an object. The illumination from one candle falling on a surface of 1 square foot at a distance of 1 foot …   Audio and video glossary

  • Footcandle — WikiV See Lumen/FT2 …   Audio and video glossary

  • footcandle — noun a unit of illuminance on a surface that is everywhere 1 foot from a point source of 1 candle • Hypernyms: ↑illumination unit * * * ˈ ̷ ̷| ̷ ̷ ̷ ̷ noun : a unit of illuminance on a surface that is everywhere one foot from a uniform point… …   Useful english dictionary

  • 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

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