Light collection method and apparatus

Details Light collection method and apparatus Light collection method and apparatus

1990-05-18

1991-11-12

Sikes, William L.

Optical waveguides

Optical fiber bundle

385 33, G02B 604

Patent

active

050642693

ABSTRACT:
The device of this invention employs a short focal length anamorphic lens to collect light from a source with asymmetric angular dispersion of the flux. Focal lengths are chosen to provide an approximate line fuzzy focus with a f
umber equal to or smaller than one of the associated detector. Fiber optic cable systems are used to deliver the condensed light and the diameter of the optical fibers is chosen to give a numerical aperture greater than that of the detector. The number of optical fibers in the cable should be large enough to over-fill the limiting area of the etendue of the detector. In a preferrred embodiment the fiberoptic cable is bifurcated and fibers from the separate channels are interleaved.

REFERENCES:
patent: 4974927 (1990-12-01), Kimura

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