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Photonics Dictionary: C

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cathode rays -> cathode stream
Also known as cathode rays. Formerly, this term described a stream of electrons emitted from the cathode of a gas-discharge tube during its bombardment by positive ions. It also describes any stream...
cathode sputtering
The method of disintegrating the substance of the cathode by bombarding it with ions and depositing it on another electrode or electron tube envelope.
cathode stream
Also known as cathode rays. Formerly, this term described a stream of electrons emitted from the cathode of a gas-discharge tube during its bombardment by positive ions. It also describes any stream...
cathode-coupled amplifier
A cascade amplifier that uses a common cathode resistor to couple energy from stage to stage.
cathode-ray graphic display
A cathode-ray tube, driven by a computer, that receives impulses of information from the computer and displays it in a series of lines, circles, curves or other graphic forms to be viewed by the user.
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...
cathode-ray output
A term used in data processing to describe a cathode-ray tube that displays graphic or character data.
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...
cathodic etching -> vacuum etching
Also known as cathodic etching. Surface etching achieved by bombarding an evacuated surface with gas ions.
cathodoluminescence
Light produced when a metal is bombarded with high-velocity electrons causing small amounts of the metal to vaporize and emit radiation. Also known as electronoluminescence.
cation
An ion carrying a positive charge and thus attracted to the cathode during electrolysis.
catoptric light
Light that is directed or focused by means of curved reflective surfaces.
catoptric system
An optical system in which the only image-forming elements are curved-surface mirrors; e.g., a Cassegrain lens system.
CATV
community antenna television
Cauchy formula -> dispersion formula
All formulas that present the index of refraction as a function of a wavelength of electromagnetic radiation. Also called dispersion equation, Cauchy formula, Hartmann formula.
caustic
A surface that envelops a bundle of rays or bundle of normals to the wave surface. It may be observed as a hollow, luminous cusp in a turbid medium.
CAV
constant angular velocity
cavity
In a laser, the optical resonator formed by two coaxial mirrors, one totally and one partially reflective, positioned so that laser oscillations occur.
cavity dumping
A Q-switch method that can result in extreme pulse shortening.
CBEMA
Computer and Business Equipment Manufacturers' Association
cBn
cubic boron nitride
CBR
chemical, biological, radiological
CC
cubic convolution
cc
cubic centimeters
CCD
charge-coupled device
CCD camera
A CCD camera, or charge-coupled device camera, is a type of digital camera that utilizes a CCD image sensor to capture and record images. CCD cameras are widely used in various applications,...
CCD image sensor
A CCD image sensor, or charge-coupled device image sensor, is a type of electronic device used to convert optical images into electronic signals. It is a key component in digital cameras, camcorders,...
CCD -> charge-coupled device
A charge-coupled device (CCD) is a type of electronic image sensor used in various imaging devices, including digital cameras, camcorders, and scientific instruments. It consists of an integrated...
CCDS
Center for Commercial Development of Space
CCFM
cryogenic continuous-film memory
CCIR
Comité Consultatif International des Radiocommunications
CCITT
Comité Consultatif International Telegraphique et Telephonique
CCL
controlled commodities list
CCO
current-controlled oscillation
CCP
computer-controlled polisher
CCPD
charge-coupled photodiode array
CCT
correlated color temperature
CCTV
closed-circuit television
CCW
counterclockwise
cd
candela
CD
circular dichroism; compact disc
CD-ROM (compact disc read-only memory)
An adaptation by Philips and Sony of their audio compact disc technology for optical disc data storage and retrieval. Current capacity of a disc is 0.5 to 0.6 gigabytes of information.
CD-ROM
compact disc read-only memory

Photonics DictionaryC

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