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6 terms
Photonics Dictionary: R
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Radiation Source x
R x
radiant heat
Infrared radiation emitted from a source that is not heated sufficiently to give off visible radiation.
radiation pyrometer
Also known as radiation thermometer. A pyrometer in which the radiant intensity from the source to be measured is used to calculate its temperature. The usual detector is a thermocouple, thermopile...
radiation temperature
The temperature of a complete radiator that has a total radiant emittance identical to that of an unknown resource.
reflected ultraviolet photography
A photographic method used to obtain an image of a subject by means of its reflectance of incident ultraviolet radiation. An ultraviolet source is used to irradiate the subject, while the reflected...
reflective
The term reflective is an adjective that describes the ability of a surface or material to reflect light or other forms of radiation. It implies the capability of bouncing back or redirecting...
remote sensing
Remote sensing is a method of data collection and observation where information about objects, areas, or phenomena on Earth's surface is gathered from a distance, typically using sensors onboard...
Photonics Dictionary
R
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