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Энергетическая
| Глоссарий по физической оптике |
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Irradiance, английский
- The density of the luminous flux which is incident on a surface.
- Интенсивность излучения
- The direct, diffuse, and reflected solar radiation that strikes a surface. usually expressed in kilowatts per square meter. irradiance multiplied by time equals insolation.
- The direct, diffuse, and reflected solar radiation that strikes a surface. usually
- Power of electromagnetic radiant energy incident on or radiated from the surface of a given unit area. compare radiance.
- Radiant power falling upon a known surface area at a given angle. compare radiance. see also radiometer. ishiharatm plates: trade name for a kind of pseudoisochromatic plates, used for color differentiation vision testing.
- Total radiant power, in watts per square meter (w/m2), falling upon a known surface area at a given angle.
- Total radiant power, in watts per square meter (w/m2), falling on a known surface area at a given angle. compare radiance. see also radiometer. irradiance, effective: measure of spectrally weighted radiant power in watts per meter-squared, as determined with a sensor whose responsivity replicates some desired action spectrum. compare irradiance; irradiance, spectral. irradiance, spectral: measure of energy emitted by a radiation source as function of wavelength. units of spectral irradiance are watts per square meter per nanometer (w·m–2·nm–1) and are often plotted versus wavelength. see also spectral power distribution. ishihara plate: trade name for a kind of pseudoisochromatic plate used for color differentiation vision testing.
- Radiant power falling upon a known surface area at a given angle. in nondestructive testing, the unit for irradiance of a uv-a source is microwatt per centimeter squared (?w·cm–2) and maximum irradiance occurs when the source and surface are perpendicular.
- Radiometer. j
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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Isoelectronic, английский
Ирисовая, русский
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