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Excelitas Technologies Corp. - X-Cite Vitae HP 11/24

812 terms

Photonics Dictionary: C

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c

centi-; speed of light in a vacuum

Celsius; coulombs; cycles

c to c

center to center

C-band

conventional band

C-mount lens

A C-mount lens refers to a specific type of lens commonly used in machine vision, surveillance, microscopy, and other imaging applications. The "C-mount" designation refers to the standard interface...

C-mount

A standard lens interface initially made for 16mm movie cameras and now used primarily on closed-circuit television cameras. It is a 1-in.-diameter, 32-thread-per-inch interface with a...

C/AHARS

compass/attitude heading and reference system

clear aperture

cable -> fiber optic cable

A package for an optical fiber or fibers that may include cladding, buffering, strength members and an outer jacket.

cache

A portion of computer memory that is used for temporary storage of frequently accessed data. Substantially increases computer speed.

CAD

computer-aided design

CADE

computer-assisted data entry

CADF

cathode-ray tube automatic direction finding

cadmium lamp

A mercury vapor discharge lamp that has cadmium added to emit radiation in the red region as a complement to the mercury vapor's blue and green radiation.

cadmium lines

The three lines in the spectrum of cadmium that have the purest radiations and that were first used by Michelson to calculate the standard meter.

cadmium red line

The narrowest line of the cadmium spectrum; the red line has the purest radiation.

cadmium sulfide

An inorganic compound, yellow to orange in color, that fluoresces strongly enough when bombarded by a high-current-density electron beam to be used as a high-intensity light source.

cadmium sulfide cell

A photoconductive cell having cadmium sulfide as its photoconducting material for the production of a very high dark-light resistance ratio.

CAE

computer-aided engineering

CAIBE

chemical-assisted ion-beam etching

cal

calorie

calcite

A doubly refracting mineral used to produce polarizing prisms. It is uniaxial negative and in the trigonal division of the hexagonal system of crystals. Its indices are e = 1.486, w = 1.658; its...

calcite interference microscope

A microscope that allows examination of a small crystal and conveniently provides linearly polarized object and reference beams so that, by suitable orientation of an anisotropic crystal, the optical...

calcium fluoride

An optical material used in place of crown glass to produce lenses with extraordinary correction of chromatic aberrations. Its high coefficient of thermal expansion and its tendency to absorb...

calcium indicator

A calcium indicator is a molecule that is sensitive to changes in calcium ion (Ca2+) concentrations in biological systems. These indicators are commonly used in various fields, including cell...

calcium iodide

A hygroscopic powder used in the photographic process.

calcium tungstate

White, tetragonal crystals used in the production of luminous coatings.

calibrated light source

A lamp whose output can be traced to a standard light source.

calibrated wedge

An optical wedge in which transmittance or density is a function of the location of the wedge, relative to a specific optical system.

calibration reference

Any known value derived from standard analysis that serves as a reference to the accuracy of an instrument or process in determining one or more variables.

Callier coefficient

The coefficient termed by Callier as the ratio between the density of photographic negatives measured by parallel light and that measured by diffuse light, due to scattering effects. This effect is...

Callier effect

The selective scattering of light as it passes through a diffusing medium.

calligraphic imager -> stroke pattern

The pattern formed by a character generation cathode-ray tube system, in which the characters are composed of a sequence of line segments (strokes) generated by the electron beam motion with time...

calorescence

The production of visible light by infrared radiation whereby the light is produced by heat and not by any direct change in wavelength; the transformation is indirect.

calorific rays

Name originally given to the sun's infrared radiation by Sir William Herschel in his Philosophical Transactions of 1800.

calorimeter

An instrument used to measure the change of heat content of a system by measuring microwave power in terms of generated heat.

calorimetry

Calorimetry is a branch of science that involves the measurement of heat flow in physical or chemical processes. It encompasses various techniques and instruments used to quantify heat transfer,...

CALS

computer-aided acquisition and logistics support

calutron

An electromagnetic device used to separate isotopes of elements based on their respective masses.

CAM

computer-aided manufacturing

CAMAR

common-aperture multifunction array radar

camera chain

The term sometimes used to describe the sequential arrangement of components in a video system -- from transmitter to receiver.

Camera Link HS

Camera Link HS (high speed) is a standard developed for high-speed digital data transmission in machine vision and industrial imaging applications. It is an evolution of the original Camera Link...

camera lucida

A portable instrument that uses a four-sided reflecting prism or set of mirrors to create a duplicate image of an object on a horizontal sheet, on which outlines of the subject may be traced by hand.

camera memory

Primary image memory that is built into a digital camera and stores the digital images generated by the camera's image sensor. figure

camera obscura

A forerunner of the modern camera, this instrument had a focusable lens that produced a sharp image on the enclosure opposite the aperture but had no photosensitive material to record it.

camera reduction

The use of the photographic process to produce precision copies of an original image that are many times smaller in size. One of its many applications is in microcircuitry.

camera shutter

An apparatus, designed for use with a camera, that is used to rapidly open the path from lens to film, to maintain the opening throughout exposure and to close the opening in rapid succession. The...

camera tube

The electron beam tube of a television camera that converts an optical image into a pattern of electrostatic charges and then scans the pattern to produce a corresponding electronic signal for...

camera tube target

The storage surface of an electron beam tube that is scanned by an electron beam to generate an output-signal current corresponding to the charge-density pattern stored.

Photonics DictionaryC

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