Projected reticle optical sighting system

Details Projected reticle optical sighting system Projected reticle optical sighting system

1978-06-26

1980-04-22

McGraw, Vincent P.

Optics: measuring and testing

Fiducial instruments

Reticle lies outside viewing path

343703, G01B 2110

Patent

active

041992571

ABSTRACT:
An optical sighting system for aiming the main operative axis of an apparatus in the direction of a distant target wherein the sighting system includes an optical sighting device fixed to the apparatus and laterally offset from the main axis of the apparatus and a reticle projector fixed to the apparatus and projecting a reticle image into the sighting device along a path parallel to said main operative axis, various embodiments being disclosed including additional features whereby the sighting device is supported on an arm which is separate from another arm coupled to mount a device for directing the projected reticle image into the optical sighting device, the directing device comprising a mirror or a polygonal prism.

REFERENCES:
patent: 2458831 (1949-01-01), Cady
patent: 2463233 (1949-03-01), Alexanderson
patent: 3936137 (1976-02-01), Litman
patent: 3966328 (1976-06-01), Wiklund

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