Photonics Dictionary: C

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CRT

cathode-ray tube

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...

cathode-ray tube deflection plane

A plane that lies at right angles to the tube axis that has the deflection center.

cathode-ray tube envelope

Envelopes for cathode-ray tubes are made by blowing glass in the same manner as light bulbs. They have a fairly flat end face to carry the phosphor material applied internally.

cathode-ray tube faceplate

A fiber optic end plate constructed by drawing a bundle of parallel fibers embedded in glass and cutting it into thin slices. These slices are assembled in a plane and heated to produce a...

cathode-ray tube grid -> Wehnelt cylinder

Also known as cathode-ray tube grid or shield. A cylindrically shaped electrode that, containing the cathode of a cathode-ray tube with opposite potential, is designed to focus and control the...

cathode-ray tube lens

A high-quality, narrow-angle lens of high aperture designed for low magnification in the recording of cathode-ray tube images.

cathode-ray tube pattern

The luminous trace formed on the cathode-ray tube screen by the motion of the electron beam.

cathode-ray tube shield -> Wehnelt cylinder

Also known as cathode-ray tube grid or shield. A cylindrically shaped electrode that, containing the cathode of a cathode-ray tube with opposite potential, is designed to focus and control the...

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...

character generation cathode-ray tube

A cathode-ray tube that generates symbols for use in other displays. The tube operates by scanning specific characters on the target and generating them as video signals to other cathode-ray systems.

cathode-ray oscilloscope -> oscilloscope

A system in which a supplied signal causes the deflection of the electron beam in a cathode-ray tube, thus forming a visible trace on the phosphor screen of the tube and providing for examination of...

Photonics DictionaryC

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