Radiance: Difference between revisions

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imported>David E. Volk
m (remove cat, bold title)
imported>Niek Sanders
(Elaborated terms in defn.)
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   L = \frac{d^2\Phi}{dA d\Omega cos \theta}
   L = \frac{d^2\Phi}{dA d\Omega cos \theta}
</math>
</math>
Where <math>\Phi</math> is [[Radiant flux|radiant flux]], <math>A</math> is an area, and <math>\Omega</math> is a [[solid angle]].


Typical units are <math>[\frac{W}{m^2 sr}]</math> where "sr" means [[Steradian|steradians]].
Typical units are <math>[\frac{W}{m^2 sr}]</math> where "sr" means [[Steradian|steradians]].

Revision as of 13:43, 3 January 2008

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This editable Main Article is under development and subject to a disclaimer.

Radiance is a term in radiometry. It is defined as:

Where is radiant flux, is an area, and is a solid angle.

Typical units are where "sr" means steradians.