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Photonics Dictionary
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chromatography
The chemical method of separating compounds dissolved in one phase (usually mobile) through its equilibration with a second phase (usually stationary). The mechanism of separation may involve...
chronophotograph
The continuous record containing the series of pictures formed by chronophotographic methods.
chronophotography
The photographic recording of an action by taking a series of still pictures at regular intervals throughout the action.
cine fluorography
The application of a cine camera in recording the images on a fluorescent screen. When x-rays are used to produce the screen images, this process is referred to as cine-radiography.
cinematography
The technique of making motion pictures.
cinemicrography
Cinematography performed with the use of a microscope to film the actions of microscopic specimens.
cineradiography
The photographic filming of the action of x-ray images recorded on a fluorescent screen by means of large lens apertures and highly sensitive filters.
circle, aiming
->
aiming circle
An instrument designed to measure angles in azimuth; used in general topographic work and military gunnery.
circular-ranging optical coherence tomography
Circular-ranging optical coherence tomography (CR-OCT) is a specialized imaging technique used in medical diagnostics and research to obtain high-resolution cross-sectional images of biological...
Clayden effect
The desensitization of the first photographic exposure after it has been subjected to high-intensity radiation.
clinical photography
The application of photography, with the exception of radiography, to obtain pictures of parts or the whole of a patient to make a diagnosis.
CMOS camera
A CMOS camera refers to an imaging device that employs a complementary metal-oxide-semiconductor (CMOS) image sensor to capture digital images. CMOS cameras have become ubiquitous due to their low...
coherent fiber bundle
A coherent fiber bundle (CFB), also known as a coherent fiber optic bundle, is an assembly of multiple optical fibers arranged in a specific geometric pattern to maintain the spatial coherence of...
cold atom
Cold atoms refer to atoms that have been cooled to extremely low temperatures, typically in the microkelvin (µK) to nanokelvin (nK) range, close to absolute zero (0 Kelvin or -273.15°C). At...
Collaborative Robot
Collaborative Robot (Cobot): Unlike traditional autonomous robots, which usually work by themselves, a collaborative robot is programmed to work with humans, such as a guide or an assistant. They can...
color center
A color center, in the context of materials science and condensed matter physics, refers to a specific type of crystallographic defect in a crystalline structure that introduces color to the...
color circle
An early graphic scheme of colors in which saturated spectral colors are plotted around the circumference of a circle. Complementary colors face each other across the circle's diameter.
color facsimile transmission
The transmission of a color photograph by separating the colors into varying intensities of red, blue and green, and then sending separate transmissions of the three color signals to a receiving...
color filter
->
optical filter
An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical filters are used to control the spectral content of light in various...
color graphics converter
A unit that converts images to the standard NTSC format for use with video recorders, projectors and discs.
color holography
The recording of three or more separate holograms having a different color on a medium, so that illumination with a tricolor beam yields three separate wavefronts, each representing one of the...
color photographic film
Film that produces color negatives or transparencies by the use of three emulsions, one coated over the other, that are each sensitive to one of the colors red, blue or green.
colorimeter
A colorimeter is a device used to measure and quantify the color characteristics of an object or a light source. It provides objective and standardized color information, typically expressed in terms...
column chromatography
The chromatography method in which the stationary phase is supported in or on an inert packing in a column, through which the mobile phase passes.
compensating filter
A filter used in photography to change the spectral composition of light entering a camera, or to adjust color balance during printing.
compound microscope
->
microscope
An instrument consisting essentially of a tube 160 mm long, with an objective lens at the distant end and an eyepiece at the near end. The objective forms a real aerial image of the object in the...
computational imaging
Computational imaging refers to the use of computational techniques, algorithms, and hardware to enhance or enable imaging capabilities beyond what traditional optical systems can achieve. It...
computer graphics
Computer output in the form of pictorial representation (graphs, charts, drawings, etc.) that is displayed visually.
computer graphics metafile
A snapshot representation of the final image created by a computer program.
computer graphics workstation
The physical area containing an assembly of computer graphics equipment for presenting generated images and allowing interaction between the user and the computer.
computer polarization holography
A technique used to store wavefront information on thin polarization information-recordable materials by controlling the polarization angle of a small illuminating spotlight in each sampling cell on...
computer-generated hologram
A computer-generated hologram (CGH) is a holographic image produced using computational methods and algorithms, rather than traditional optical techniques. CGHs are generated entirely in digital form...
computer-generated holographic scanner
A phase reflection scanner that eliminates the need for a complex translation device while maintaining a high-energy-density level during laser materials processing. These devices direct and focus...
concave holographic grating
The generation of a grating on a concave spherical blank by the holographic process. In this way, ghost images and intense stray light are avoided.
conjugate holographic image
Also known as real holographic image. The indistinct, highly distorted image produced on the side of the hologram closest to the observer, in addition to the primary image. When the location of the...
contact fluorography
A fluorographic method whereby the sensitive photographic medium is pressed against a fluorescent screen to form a visible image.
contact microradiography
The radiography of small objects having detail too fine to be seen by the unaided eye. The resulting negative, when optically enlarged, can be examined.
continuous strobe
A continuous strobe, also known as a continuous light or constant light strobe, is a type of lighting device used in photography, videography, and various other applications where continuous...
contourography
The generation, usually by a cathode-ray oscilloscope, of a two-dimensional image having a three-dimensional appearance.
coordinate measuring microscope
An instrument used to measure the coordinates of a point on an object such as a photographic plate.
coronagraph
A telescope in which a mask occults the solar disk, generating an artificial eclipse and allowing observation and recording of the sun's corona.
CPH
computer polarization holography
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 spectrograph
A system that applies a crystal as a diffracting agent to photograph the spectrum.
crystallogram
The photographic record of the diffraction pattern formed when x-rays pass through a crystal.
crystallography
The analysis of the atomic structures within crystals by means of x-ray diffraction.
CT
computed tomography; chemical transfer; center thickness
cut plane
In computer graphics, intersection of a plane with a three-dimensional object to create a sectional view.
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...
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...
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Photonics Dictionary
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