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Foot-candle

Discussion in 'Wiki' started by derekleffew, Jan 15, 2008.

  1. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    A measurement of light intensity. Defined as the amount of illumination from a point source emitting 1 candela on the interior of a sphere with a 1 foot radius. It can also be defined as the illuminance on a 1 square foot surface from a source emitting 1 lumen.

    See also lumen.
     
    Last edited by a moderator: Jan 15, 2008

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