Passive optical rangefinder/sextant having search capability

Details Passive optical rangefinder/sextant having search capability Passive optical rangefinder/sextant having search capability

1981-06-25

1983-11-08

Buczinski, S. C.

Optics: measuring and testing

Angle measuring or angular axial alignment

Apex of angle at observing or detecting station

356 4, 356140, 356144, 356145, 356146, 356147, G01B 1126, G01C 100

Patent

active

044139063

ABSTRACT:
Uniquely integrating a search mirror and a deflection mirror with a passive ptical rangefinder and a remote sextant, enhances the operation of both devices. The improved rangefinder/sextant provides day
ight 360.degree. azimuthal and at least -5.degree. to about 60.degree. elevational search capability with the additional capability of pointing the search mirror at a navigational star in a direction different from that of an imaging camera. Thus, the imaging camera, can be pointed at the sea horizon that is least obscured by haze and/or sea clutter, thereby allowing altitude readings under adverse conditions.

REFERENCES:
patent: 3204102 (1965-08-01), Hand, Jr.
patent: 3889052 (1975-06-01), Back
patent: 3985446 (1976-10-01), Feldman et al.
patent: 4009960 (1977-03-01), Feldman et al.
patent: 4162124 (1979-07-01), Feldman et al.

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