Optical sight with variable illumination

Details Optical sight with variable illumination Optical sight with variable illumination

1974-12-26

1976-11-30

Corbin, John K.

Optics: measuring and testing

Fiducial instruments

Reticle lies outside viewing path

350 10, 356252, G02B 2734

Patent

active

039945979

ABSTRACT:
An optical sight for use as a gun sight, surveying instrument, or the like, with means for projecting an illuminated reticle into the line of sight. The illumination is variable in color and intensity for maximum visibility against a variety of backgrounds, and means are provided for precise alignment, adjustment for elevation and windage and for levelling. In its basic form the sight has long eye relief, but is readily adaptable for use with telescopic attachments.

REFERENCES:
patent: 2705371 (1955-04-01), Hammond, Jr.
patent: 3556666 (1971-01-01), Lichtenstern
patent: 3645635 (1972-02-01), Steck
patent: 3672782 (1972-06-01), Akin, Jr.
patent: 3678590 (1972-07-01), Hayward

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