Irradiance: Difference between revisions

From Citizendium
Jump to navigation Jump to search
imported>Niek Sanders
m (Wiki link to flux.)
imported>Niek Sanders
m (Wiki link to radiometry.)
Line 1: Line 1:
Irradiance is a term in radiometry.  It is defined as the change in [[Flux|flux]] over the change in area:
Irradiance is a term in [[Radiometry|radiometry]].  It is defined as the change in [[Flux|flux]] over the change in area:


<math>
<math>

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).