Optics: measuring and testing – Angle measuring or angular axial alignment – With screen
Patent
1979-04-30
1981-04-07
Corbin, John K.
Optics: measuring and testing
Angle measuring or angular axial alignment
With screen
350444, 356153, 356247, G01B 1127, G02B 1700
Patent
active
042602548
ABSTRACT:
A simple and compact testing device is disclosed for enabling the boresight alignment of a laser designator to be quickly and readily checked. The device includes a tubular housing having a closed end and an open end adapted to be attached to the designator. A target disk and a converging meniscus lens provided with a reflective coating on its surface facing the target disk are snugly disposed within the housing adjacent to its closed and open ends, respectively, with a tubular spacer member interposed between and abutting the target disk and the lens. A portion of the laser light emitted from the designator is directed by the lens toward the target disk such that after a predetermined number of reflections from the target disk and the coating on the lens this laser light is focused to a small area on the target disk. The target disk emits visible light which travels back into the designator to provide an indication of the location of the spot of impingement of the laser light on the target disk.
REFERENCES:
patent: 1053512 (1913-02-01), Huntoon et al.
patent: 2347702 (1944-05-01), Maris
patent: 2394894 (1946-02-01), Burgert et al.
patent: 2730926 (1956-01-01), Back et al.
patent: 4139769 (1979-02-01), McCrum et al.
Maksutov, D. D., "New Catadioptric Meniscus Systems", Jr. Optical Soc. America, 5-1944, pp. 278-279.
Hayes et al., "Optical X-Ray Focusing & Alignment", IBM Tech. Disc. Bulletin, vol. 15, 3-1973, pp. 3202.
Coble Paul M.
Corbin John K.
Hughes Aircraft Company
MacAllister W. H.
Punter Wm. H.
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