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Lighting Quiz
Photometrics definitions
5
Architecture
Undergraduate 3
10/30/2012

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Cards

Term
Flux (lumens)
Definition
luminous flux light emitted in all directions by a source
Term
Intensity (candela)
Definition
light emitted in a specific direction by a source (used on polar graph)
Term
Illuminance (footcandles)
Definition
density of light on a surface
Term
Luminance (candelas/sq.ft)
Definition
light that is reflected from a surface in a given direction (back toward the eyes)
Term
Exitance (lumens per sq. ft)
Definition
total quantity of light emitted, reflected, or transmitted in all directions from a surface
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