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blackbody Dictionary Terms

Planckian locus
Locus of points on a chromaticity diagram that includes the chromaticities of blackbody radiators.
blackbody locus
With respect to a chromaticity diagram, this is the locus of points that represent the chromaticities of blackbodies...
correlated color temperature
Temperature of the blackbody having chromaticity nearest to that of the test source on a specified chromaticity diagram.
minimum resolvable temperature
In a thermal imaging system, the smallest change in blackbody equivalent temperature that can be detected clearly by the...
Stefan-Boltzmann law
The formula that indicates the total radiation at all wavelengths from a perfect blackbody. W Total = 5.67 x 10-12 T 4(W/cm2)
emissivity
The ratio of an object's radiance to that emitted by a blackbody radiator at the same temperature and at the same wavelength.
infrared radiation source
Any object that emits radiation of a wavelength lying between about 0.75 to 1000 µm. A calibrated secondary source...
Wien's displacement law
The formula that gives the wavelength of maximum spectral radiant emittance of a perfect blackbody: λmax =...
Planckian radiator
A synonym for blackbody or complete radiator.
emissive power
The emissivity of a body times the emissive power of a blackbody at the same temperature. For a blackbody, it is the total...
Waidner-Burgess standard
A standard of luminous intensity evaluated as the luminous intensity of 1 cm2 of a blackbody at the melting point of...
incomplete radiator
A thermal source that emits less radiation than a blackbody under identical temperature conditions.
blackbody source
A blackbody source, often simply referred to as a blackbody, is a theoretical or practical physical object that absorbs all...
distribution temperature
Temperature of the blackbody having a spectral power distribution approximately proportional to the test source at all...
candela
SI unit of luminous intensity. It is defined as one sixtieth the normal intensity of one square centimeter of a blackbody at...
color temperature
A colorimetric concept related to the apparent visual color of a source (not its temperature). For a blackbody, the color...
blackbody simulator
A source that attempts to create the characteristics of an ideal blackbody. It consists of a cavity, generally spherical,...
blackbody
An ideal body that completely absorbs all radiant energy striking it and, therefore, appears perfectly black at all...
Planck's (radiation) law
The formula describing the spectral radiant emittance of a perfect blackbody as a function of its temperature and the...

(19 results found)

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