Collimator gunsight

Details Collimator gunsight Collimator gunsight

1981-05-13

1983-06-28

Corbin, John K.

Optics: measuring and testing

Fiducial instruments

Reticle lies outside viewing path

33233, G02B 2310

Patent

active

043902766

ABSTRACT:
A collimator gun sight is formed of a solid block of glass with plane parallel opposite end faces. A partially reflecting concave surface in the block forms an image at infinity of a graticule pattern which is illuminated by light entering the block through a window. The block is made from a rod with plane end faces and a lens doublet element cemented to one face.

REFERENCES:
patent: 3942901 (1976-03-01), Ekstrand

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