Videology Industrial-Grade Cameras - Custom Embedded Cameras LB 2024

Type

Browse by Letter

Zurich Instruments AG - Boost Your Optics July-August MR

3,170 terms

Photonics Dictionary

Clear All Filters x FO x
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.

cryogenically cooled LWIR camera

A cryogenically cooled long-wave infrared (LWIR) camera is a specialized thermal imaging device designed to detect infrared radiation in the long-wave infrared spectrum, typically ranging from 8 to...

cryostat

A cryostat is a device used to maintain very low temperatures, typically below the boiling point of liquid nitrogen (77 K or -196°C) or even lower. It provides a controlled environment for...

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 counter

An instrument that is used to detect high-energy particles by the pulse of the current formed when a particle passes through a normally insulating crystal to which a potential difference is applied.

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 filter

A bandpass filter with piezoelectric crystal components for the passage or impedance of electrical signals of various frequencies.

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 oven

A temperature-controlled container used to stabilize the temperature and resonant frequency of a crystal found in a crystal-controlled oscillator.

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 lens

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

crystallite

A small region within a single crystal where the molecules form a perfect lattice.

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,...

crystallogram

The photographic record of the diffraction pattern formed when x-rays pass through a crystal.

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...

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,...

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...

cutting

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

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...

cyclotron resonance

The tendency of charge carriers to spiral about an axis in a direction identical to that of an applied magnetic field that has an angular frequency formed by the value of the applied field and the...

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.

Czochralski technique

Popular process for silicon and polycrystalline production that consists of an alteration of the original state of a substance; thus, single-crystal materials can be used to form a polycrystal.

Dammann grating

A Dammann grating is a type of diffractive optical element (DOE) used to create an array of equally spaced, uniform-intensity spots or beams. It is named after its inventor, Dr. Herbert Dammann. The...

DAP

deformation of aligned phase

dark beam

A precision-engineered microminiature light source that is safe for darkroom use, yet emits a beam of light bright enough to read by.

dark box

A lightproof box used for storing photosensitive materials.

dark fiber

Unused fiber; fiber that has been installed but reserved for future use. Carrying no light.

dark frame

A frame taken to identify electronic noise in a CCD imaging device. A dark frame is recorded without exposing the CCD to any external light by, for example, leaving the shutter of a CCD camera...

dark operate mode

An operate mode in which the sensor is programmed to perform a task such as generating output when the light level falls below a certain threshold.

dark-field condenser

A condenser that forms a hollow cone-shaped beam of light with its focal point in the plane of the specimen. If it is used with an objective having a numerical aperture lower than the minimum...

dark-field disc

A disc contained within an electronic cell counter for regulating light transmission.

darkening

The formation of a dark-colored film on a metal surface by chemical activity.

data analysis display

An accurate cathode-ray tube display used to provide visual representation stored in a computer for the interpretation and evaluation of the data.

data cube

A multidimensional array of values that is commonly used in programming to describe a time series of image data. Each dimension in the data cube represents a new attribute, while the cells of the...

dBm

Decibels referenced to one milliwatt; often used to specify power ratings for semiconductor diode lasers.

DC blocking -> zero-order filtering

The removal of the zero-order component of the Fourier spectrum distribution of an object with a small, opaque absorber or reflector in the Fourier plane, to produce images that appear bright on a...

decision-tree classification

A structural method of optical character recognition, used where the input media are variable, as in hand-written or multifont documents. A series of questions (such as "Does the character contain a...

deep learning

Deep learning is a subset of machine learning that involves the use of artificial neural networks to model and solve complex problems. The term "deep" in deep learning refers to the use of deep...

deep multiphoton microscopy

Deep multiphoton microscopy is an advanced imaging technique used in biological and biomedical research to visualize structures and processes deep within tissues with high resolution. It combines the...

deep ultraviolet laser

A deep ultraviolet (DUV) laser is a type of laser that emits light in the deep ultraviolet region of the electromagnetic spectrum, typically with wavelengths ranging from about 200 nanometers (nm)...

deep ultraviolet

Deep ultraviolet (DUV or deep-UV) refers to a specific range of ultraviolet light with shorter wavelengths than those in the UV-A and UV-B regions. The exact wavelength range considered as DUV can...

deep-depletion CCD

A CCD device for sensing longer wavelengths, such as NIR and IR, that has a deeper depletion region than would be necessary for sensing in the visible wavelength range. Because the depth of charge...

defect function -> error function

A single number, defined by the computer program or the user that expresses the performance of an optical system. Also known as merit function and defect function, the error function comprises...

definition test object

A chart, either printed on paper or prepared photographically on glass plates or film, that consists of 3-bar resolution test objects, sine-wave test objects for modulation transfer function...

deflection

Any bending of a wave of radiation away from its expected path, as, for example, by diffraction or by a magnetic field.

deflection under static load

For an optical table, the amount of displacement that occurs when a heavy load is placed or moved on the surface. To measure deflection under static load, a 113-kg (250 lb) weight is placed in the...

Photonics Dictionary

Need Help?