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Trioptics GmbH - Worldwide Benchmark 4-24 LB
radiant flux Dictionary Terms

radiant flux density
 optical testing instrument
An optical testing instrument is a device or system used to evaluate and measure the performance, quality, and...
spectral luminous efficacy
Ratio of the luminous flux in a beam of radiation to the spectral radiant flux in the same beam at a given wavelength.
luminous efficacy
Quotient of total luminous flux divided by total radiant flux; lumens per watt. (For a source, quotient of total luminous...
exposure
In optics, the total radiant energy incident on a surface-per-unit area. It is equal to the integral over time of the...
infrared-emitting diode
A semiconductor device with a semiconductor junction in which infrared radiant flux is nonthermally produced when a current...
residual absorption and scattering
Loss mechanisms that degrade the performance of all thin-film optical devices by removing radiant flux out of the specular...
spectral integral density
With respect to color photography, the measurement, at a given wavelength, of the way the color film modulates the radiant...
radiant exitance
The radiant flux per unit area emitted from a surface.
radiant flux
integral density
With respect to color photography, the measurement of the way the color film modulates the radiant flux in the optical...
spectral luminous efficiency
Ratio of the radiant flux at a particular wavelength lm to that at any other wavelength l, such that both radiations produce...
luminous efficiency
Ratio of radiant flux weighted according to V(l), the spectral luminous efficiency, to the corresponding radiant flux.
radiant efficiency
The ratio of the radiant flux emitted by a source to the power supplied.
irradiance
Radiant flux incident per unit area of a surface. Also called radiant flux density.
cosine collector
Translucent collector developed to compensate for the partial blocking of a flat surface's collection angle that normally...

(16 results found)

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