Spectral analyzer and direction indicator

Details Spectral analyzer and direction indicator Spectral analyzer and direction indicator

1984-08-02

1987-06-23

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

356141, 356328, G01B 1126, G01J 328, G01J 336

Patent

active

046748717

ABSTRACT:
A spectral analyzer and direction indicator and direction indicator (10,20) is disclosed and includes reflection gratings (13,15,25,27,37,39), associated optical systems (17,19,29,33,41,45) and associated detectors (21,23,31,35,43,47,30). The reflection gratings (13,15,25,27,37,39) are arranged to provided angles of diffraction which are utilized to determine spectral content and incidence direction of collimated or essentially collimated incident radiation.

REFERENCES:
patent: 3761184 (1973-09-01), McLaughlin, Jr.
patent: 3929398 (1975-12-01), Bates
patent: 3992099 (1976-11-01), Laughlin
patent: 4037959 (1977-07-01), Bumgardner

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