Gun sight

Optics: measuring and testing – Range or remote distance finding – With photodetection

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Details

356 1, 356144, G02B 2304, G01C 100

Patent

active

044835981

ABSTRACT:
This invention provides an optical sight comprising a first telescope having a fixed increasing magnification whose image is combined and overlayed with the image of a second telescope having a selectable increasing magnification. The magnification of the second telescope is selected by the gunner at the beginning of the engagement in accordance with a known, conventional engagement speed of the target aircraft, thereby permitting the gunner to remember a chart of multiple target lengths for different target ranges without further consideration of target speed.

REFERENCES:
patent: 1047051 (1912-12-01), Hasselkus
patent: 1290777 (1919-01-01), O'Brien
patent: 2409186 (1946-10-01), Bouwers
patent: 2619874 (1952-12-01), Lane
patent: 2753760 (1956-07-01), Braymer
patent: 2758013 (1951-12-01), Monk
patent: 2994245 (1961-08-01), Wagner
patent: 3152214 (1964-10-01), Korones et al.
patent: 3407302 (1968-10-01), Bouwers
patent: 3572886 (1971-03-01), Cupertino
"Applications of Geometrical Optics," Proceedings of the Society of Photo-Optical Instrumentation Engineers, vol. 39, Aug. 27-29, 1973.
"Description and Instructions for the use of the Jungner KS-2 Sight," Jungner Instrument, Bes-1412-E, Apr. 27, 1976.
Jungner Brochure 73-3565-E Title: Anti Aircraft Sight KS-2 (4 pages).
Fraser, D. B., "Design of a Low Cost, High Magnification, Passively Stabilized Monocular, The Stedi-Eye, " Proc. Soc. of Photo-Optical Instrumentation Engineers, vol. 39, San Diego Calif. 8-1973, pp. 251-259.

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