foot-candle

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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.

References in periodicals archive ?
The amount of illumination is expressed in a footcandles rating as read by the testing method described.
The recessed, ceiling-mounted luminaire, which features an aluminum channel and acrylic lens, was made using Selux's M36 LEDs, and delivers light at 40 footcandles.
The SCHX5 outperformed its competition with an industry-high Fitted Target Efficacy (FTE) score of 57 putting the most footcandles on the ground, in the pattern required, with the best uniformity, using the fewest LEDs and the least power consumed.
Entrances to the building should have higher illumination levels, around three to five footcandles, to draw attention to them.
A system capable of producing 150 footcandles of illuminance can be kept to no more than 100 fc output when that is all a tenant needs.
5 footcandles of horizontal illuminance and cutoff optics, while utilizing "green technology.
They couldn't deliver the footcandles we needed, and the color consistency was not very reliable.
In the boardrooms and library, designers chose Cooper's Corelite(TM) Stellar fluorescent luminaires to provide ambient lighting, which features an open-baffle design providing high vertical footcandles to facilitate efficient illumination.
htm) delivers intense, focused lighting of up to 4000 footcandles, while its specially designed lamp head remains cool to the touch.
We can't just say 'this is a luminaire, it'll give you this many footcandles at this ceiling height and this many lumens per watt'; it's not just about that anymore.
Light is measured in lumens per square foot, or footcandles (fc).