Collimator gun sight

Details Collimator gun sight Collimator gun sight

1990-04-30

1991-09-03

Evans, F. L.

Optics: measuring and testing

Fiducial instruments

Reticle lies outside viewing path

33241, G02B 2310

Patent

active

050447483

ABSTRACT:
The sight is of the type in which a virtual image of a graticule pattern (3) is made to overlie the view of a target through the sight along a viewing axis of the sight. The sight has an optical arrangement with a single composite graticule pattern having a light transmissive component and a light reflective component. The composite graticule pattern may be illuminated by light from the sky above the target or by the light from an artificial source to give a virtual image of at least a part of the single graticule pattern. Thus an artificial light source may be permanently mounted to the sight, to allow a daylight reflective graticule to be used during daylight and a transmissive graticule to be used at night time. During the day superimposed images of both graticule patterns may be viewed.

REFERENCES:
patent: 3880529 (1975-04-01), Althause et al.
patent: 4390276 (1983-06-01), Budden et al.

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