Transcription of Lighting Math NOT SO SCARY LIGHTING MATH …
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Lighting Math NOT SO SCARY LIGHTING MATH …
LIGHTING Math1 NOT SO SCARY LIGHTING MATHNOT SO SCARY LIGHTING MATHThe directdirectillumination from one candle placed at a distance ofone foot from a surface is defined foot1 foot--candlecandle(abbreviation = fc)FootFoot--candlecandleis also known as a unit of light or light level. 1 foot1 fcLight The Foot-candleThe energy of light from a candle falling on a one foot squareareaisOne Lumen(abbreviation = lm)The total amount of light coming out of the candlecandleis approximately 13 lumens13 lumensThe total amount of light coming out of 100100--watt Awatt A--lamplampis approximately 1650 lumens1650 lumensNOT DEFINED BY DISTANCE1 lmLight The LumenDistribution CurveDistribution Curverepresents the total light pattern produced by a sourceCandelaCandelais the intensity of light at any given The CandelaDistribution CurvePolar Chart0 deg90 deg180 deg270 degCandelaLighting Math2 Lumens versus Candelas LumenLumenis an amount of ENERGY CandelaCandelais an amount of INTESITY Lamp output can be measured in Lumens Lumens and CandelasCandelas.
Lighting Math 1 NOT SO SCARY LIGHTING MATH The direct illumination from one candle placed at a distance of one foot from a surface is defined as…. 1 foot-candle (abbreviation = fc)
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