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7 terms
Photonics Dictionary: B
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detection x
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barcode scanner
An optical scanning device designed to read information printed in the form of bars of different size by detection and processing of the varying reflectivity of light in the barcode.
beam matrix
1. A geometrical arrangement of two or more light beams for use in laser shows, object detection or other applications requiring arrayed multiple beams. 2. A mathematical 2 X 2 or 3 X 3 matrix for...
beta-ray spectrometer
An instrument for the detection of the energy distribution of b-particles and secondary electrons.
binocular threshold
The absolute luminance threshold for detection by the two eyes.
biophotonics
The technology that deals with the interaction of organic materials with light and other forms of radiant energy whose quantum unit is the photon. This includes the emission, detection, absorption,...
blink comparator
An optical system that rapidly alternates two similar pictures or scenes to permit the detection of small dissimilarities between them.
bolometer
A thermometric instrument used for the detection and measurement of radiant energy. Its essential component is a short narrow strip covered with a dead black absorbing coating and mounted at the...
Photonics Dictionary
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