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58 terms
Photonics Dictionary: C
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critical illumination
Illumination in which the light source is imaged at the object.
Crookes radiometer
->
radiometer
A device used to measure the intensity of radiant energy.
CRT
->
cathode-ray tube
A vacuum tube with an electron gun at one end and a fluorescent screen at the other. Electrons emitted from a heated filament are accelerated by a series of annular anodes at progressively higher...
cube-corner prism
->
corner cube
A corner cube, also known as a corner reflector or retroreflector prism, is a type of optical device used to reflect light or electromagnetic waves back towards their source with minimal deviation in...
CubeSat
A CubeSat is a type of miniaturized satellite characterized by its standardized size and modular design. CubeSats are typically used for scientific research, technology demonstration, educational...
curvature loss
->
macrobend loss
In an optical waveguide, that loss attributable to macrobending. Macrobending usually causes little or no radiative loss.
curvature of field
A lens aberration that causes a flat object surface to be imaged onto a curved surface rather than a plane.
curvilinear distortion
A lens aberration in which the focal length varies radially outward from the center of the field. It has the effect of making a straight tangential line in the object appear curved in the image,...
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Photonics Dictionary
C
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