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6 terms
Photonics Dictionary: J
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optics x
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Judas optics
A small defocused Galilean telescope mounted in a hole in a door. Viewed from inside through the positive lens, a wide-angle view of the outside is seen; viewed from outside through the negative...
jacket
The outer material that surrounds and protects the buffered and unbuffered fibers in an optical cable.
jet-streamed dye laser
A continuous-wave dye laser that uses a circulation pump and nozzle to provide an optically flat stream of dye across the laser's optical axis.
jig allowance
Also called coating jig allowance. That margin on an optical component that is outside the clear aperture for use in holding the component in the optical thin-film coater tooling during the...
jig transit
An optical instrument containing a gimballed sighting telescope, used to measure angular relationships in horizontal and vertical planes.
joint transform correlator
A device consisting of two optical systems in which two signals are simultaneously transformed to produce their spectra, and these spectra are multiplied and inversely transformed to produce the...
Photonics Dictionary
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