Type

Browse by Letter

Lambda Research Optics, Inc. - Large Optics

Teledyne DALSA - Line Scan Leader 5/24 HP

294 terms

Photonics Dictionary: C

Clear All Filters x MIS x C x
cresyl violet

Cresyl violet, also known as cresyl violet acetate or cresyl echt violet, is a synthetic organic compound belonging to the class of triarylmethane dyes. It is commonly used in histology and...

critical fusion frequency

The fusion frequency of flicker that is needed just to produce complete fusion and to assure the visual sensation of continuous illumination measured in cycles per second.

critical illumination

Illumination in which the light source is imaged at the object.

CRM

counter-radar missile; counter-radar measures

cross dispersion

Recombination of only the light that is correctly dispersed by the first stage of a polychromator through its wide intermediate slit (common during Thomson scattering experimentation), which is...

cross wire

Fine lines, wires or threads used in the focal plane of many optical instruments to point out and locate particular objects in the field of view. They were formerly made from a single strand of...

cross-linked plastic

Plastic in which the polymer chains become irreversibly joined during molding. The cross-linking can be achieved by heating, chemical agents or irradiation.

crossed prisms

The positioning of two Nicol prisms so that their axes are at right angles to each other. With this arrangement, light transmitted by one prism will not be transmitted by the other.

crosshairs -> cross wire

Fine lines, wires or threads used in the focal plane of many optical instruments to point out and locate particular objects in the field of view. They were formerly made from a single strand of...

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...

crush

A surface scratch or series of scratches formed by mishandling.

crush strength

The physical limit of an optical fiber or cable to withstand an applied force or weight perpendicular to the axis of the fiber.

cryospectroscopy

The spectrographic analysis of matter that is in a cooled state. Generally, a mechanical refrigerator is used to lower the temperature of the sample, allowing isolation and study of the sample and...

crystal

A solid with a structure that exhibits a basically symmetrical and geometrical arrangement. A crystal may already possess this structure, or it may acquire it through mechanical means. More than 50...

crystal diode

A diode with a semiconducting material, such as germanium or silicon, for one electrode, and a fine wire "whisker'' which lies on the semiconductor, as the other electrode. The low capacitance...

crystal field

The electrostatic field acting locally within a crystal as a result of the microscopic arrangement of atoms and ions in the lattice.

crystal laser -> solid-state laser

A solid-state laser is a type of laser that uses a solid gain medium (as opposed to a liquid or gas) to produce coherent light. The term "solid-state" refers to the fact that the active medium, where...

crystal optics

The study of the transmission of radiant energy through crystals, especially anisotropic crystals, and their effects on polarization.

crystal quartz

The naturally occurring crystalline form of silicon dioxide. It is slightly birefringent and exhibits rotary dispersion of light rays transmitted along the crystal axis, both right-hand and left-hand...

crystalline axes

The axes of symmetry in a crystal structure. See also biaxial crystal; uniaxial crystal.

crystalline lens

The internal lens of the eye. It is semielastic to permit changes in its power when focusing on objects at near distances.

crystallized glass

Glass of special composition that is melted, formed into desired shapes, and subjected to a high-temperature treatment in which the glass undergoes a stage of nucleic formation, and a second stage,...

crystallography

The analysis of the atomic structures within crystals by means of x-ray diffraction.

computed tomography; chemical transfer; center thickness

CTH

chromium thulium holmium

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...

curie

Standard maintained by the International Commission on Radiological Units as a unit of radioactivity defined as the quantity of any radioactive nuclide in which the number of disintegrations per...

curing

The use of chemicals or radiation to induce a desired change in a substance; e.g., some optical adhesives are set by exposure to ultraviolet light and are said to be UV-curing.

curvature

The measure of departure from a flat surface, as applied to lenses; the reciprocal of radius. Applies to any surface, including lenses, mirrors and image surfaces.

custom lapping and polishing services

Custom lapping and polishing services involve specialized processes used to improve the surface finish and dimensional accuracy of components to meet specific requirements or standards. These...

custom optic

A custom optic refers to an optical component that is designed, manufactured, and tailored to meet specific requirements or applications. These optics can include lenses, mirrors, prisms, filters, or...

cutback technique

A technique for measuring fiber attenuation or distortion by performing two transmission measurements. One is at the output end of the full length of the fiber. The other is within 1 to 3 m of the...

cutoff wavelength

1. In detector technology, the long wavelength at which detector response falls to a set percentage (usually 20 or 50 percent). 2. In fiber optics, the shortest wavelength at which a fiber transmits...

cuton wavelength

In filter terminology, that wavelength where the filter transmission increases beyond 5 percent.

cutting

The process of forming a lens to a given pattern, or of cutting a piece of glass along the line of scratch.

CVD

chemical vapor deposition; compact videodisc

cyanocrylate cement

Adhering material used to glue optical components that transmit in the infrared. It is easily dissolved by acetone.

cyanometer

An instrument designed to measure the proportion of light emitted by a source in the blue region of the spectrum.

cyberspace -> virtual reality

Virtual reality (VR) is a computer-generated simulation of a three-dimensional environment or experience that can be interacted with and explored by an individual using electronic devices, such as a...

cycloidal mass spectrometer

A small mass spectrometer, with a limited mass range, equipped with an analyzer to generate a cycloidal-path beam of the sample.

cylindrical lens

A cylindrical lens is an optical component that has different curvatures along its two orthogonal axes, resulting in a shape resembling a cylinder. Unlike spherical lenses, which have the same...

cystoscope

An endoscope used for the visual examination of the bladder.

Czerny-Turner design

A form of monochromator optical system consisting of two spherical concave mirrors used in conjunction with a movable diffraction grating.

Photonics DictionaryC