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Photonics Dictionary
There are 359 terms that begin with 'D'
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1
A value used to designate the relative sensitivity of a...
2
A telescope similar to the customary Cassegrain telescope,...
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An organizational method used in optical design computer...
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Continuous conversion of oscillatory energy into heat,...
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The ability of the human eye to adjust itself to low levels...
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A precision-engineered microminiature light source that is...
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A lightproof box used for storing photosensitive...
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The current that flows in a photodetector when there is no...
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The decay of an electrostatic charge image resulting from...
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In a gas, an electrical discharge that has no...
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Unused fiber; fiber that has been installed but reserved...
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A frame taken to identify electronic noise in a CCD imaging...
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A multilayer coating that manifests both a low radiant...
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The noise produced in a photodetector when the photocathode...
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An operate mode in which the sensor is programmed to...
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See dark...
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The portion of a glow discharge tube that permits little or...
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The formation of a dark-colored film on a metal surface by...
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A condenser that forms a hollow cone-shaped beam of light...
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A disc contained within an electronic cell counter for...
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The transmission of light by a condenser to observe either...
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A technique whereby the sample is illuminated by a hollow...
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A photomicrographic recording technique that utilizes...
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A spectrum having some lines that are darker than others or...
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A room that is light-tight, permitting total darkness or...
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An accurate cathode-ray tube display used to provide visual...
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A system incorporated into fiber optic data communications...
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A method of storing digital data using techniques that...
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The communications network between nodes of a data...
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An incandescent or fluorescent lamp whose emittance...
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Decibels referenced to one milliwatt; often used to specify...
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See zero-order...
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A wave associated with a moving particle, as first proposed...
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The removal of optical elements from a...
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The conversion of an internal latent image into a surface...
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The selective absorption of electromagnetic waves by a...
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See x-ray...
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A device used in ultrasonic imaging to measure the velocity...
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1. The grinding or edging of a lens so that the geometrical...
40
In a single element, any lack of coincidence between the...
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Term of the moment...
distortion - A general term referring to the situation in which an image is not a true-to-scale reproduction of an object. The term also is used to connote the temporal alteration of the signal's waveform shape. There are many types of distortion.

See also anamorphic distortion; curvilinear distortion; keystone distortion; panoramic distortion; perspective distortion; radial distortion; stereoscopic distortion; tangential distortion; wide-angle distortion.

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