Encyclopedia
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Radiance: Encyclopedia Ii - Radiance - Definition
Radiance is defined by
where
the approximation holds for small A and Ω,
L is the radiance (W·m-2·sr-1),
Φ is the radiant flux or ...
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Encyclopedia
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Luminance: Encyclopedia Ii - Luminance - Definition
Luminance is defined by
where
L is the luminance (cd/m2),
F is the luminous flux or luminous power (lm),
θ is the angle between the ...
» Read the article
