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foot-candle
(redirected from photometry)

   Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.01 sec.
foot-candle

A measure of light intensity. One foot-candle is the illumination measured on a surface one foot from the source of one candle. Many worker-safety regulations specify the minimum foot-candles of light required in work areas.Zoning variances for commercial properties near residential areas might place a restriction on the maximum foot-candles of lighting after a certain hour at night.



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LRC field demonstration results from the past few years in rural and suburban areas of Connecticut, Massachusetts, and Texas verified that by implementing the Unified System of Photometry the street lighting system consumed 30 to 50 percent less electric power and the residents believed they could see better and said they felt safer, when compared to lighting systems designed using the traditional system of photometry.
Time-series photometry was begun the following night and continued during 33 separate sessions over the following 14 days yielding 154 hours of data.
Section II covers color models, with chapters on topics such as photometry, color spaces, and illuminants.
 
 
 
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