Irradiance: Difference between revisions
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imported>Niek Sanders m (Updated link to Flux.) |
imported>David E. Volk (subpages) |
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Irradiance is a term in [[Radiometry|radiometry]]. It is defined as the change in [[Radiant flux|flux]] over the change in area: | {{subpages}} | ||
'''Irradiance''' is a term in [[Radiometry|radiometry]]. It is defined as the change in [[Radiant flux|flux]] over the change in area: | |||
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Typical units are [<math>\frac{W}{m^2}</math>]. Irradiance typically varies as a function of wavelength. | Typical units are [<math>\frac{W}{m^2}</math>]. 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). | The term "exitance" is used when talking about the irradiance leaving a surface. (E.g. the exitance from an area source). | ||
Latest revision as of 22:17, 2 January 2008
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).