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Лучистость
| Глоссарий технических терминов |
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Radiance, английский
- A measure of the output of a point source; the amount of power per unit area
- The rate of radiant emission per unit solid angle and per unit projected area of a source in a stated angular direction from the surface.
- The amount of light refracted and reflected by a diamond, also referred to as "life" or "sparkle."
- Radiant flux per unit solid angle and per unit projected area of the source. measured in watts per square meter steradian. compare irradiance.
- A measure of radiant flux density (per unit projected area) per unit solid angle. radiance is independent of distance, is measured in watts per square meter steradian (w/m2 ? sr–1) and may describe emitted or received energy. compare irradiance.
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Luxmeter, английский
Лучерасщепитель, русский
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