Irradiance: Difference between revisions

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imported>Niek Sanders
(Defn of irradiance.)
 
imported>Niek Sanders
m (Wiki link to flux.)
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Irradiance is a term in radiometry.  It is defined as the change in flux over the change in area:
Irradiance is a term in radiometry.  It is defined as the change in [[Flux|flux]] over the change in area:


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Revision as of 15:15, 18 September 2007

Irradiance is a term in radiometry. It is defined as the change in flux over the change in area:

Typical units are []. Irradiance typically varies as a function of wavelength.

The term "exitance" is used when talking about the irradiance leaving a surface. (E.g. the exitance from an area source).