Optical sighting device with illuminated aiming mark

Details Optical sighting device with illuminated aiming mark Optical sighting device with illuminated aiming mark

1987-07-23

1989-10-31

McGraw, Vincent P.

Optics: measuring and testing

Fiducial instruments

Reticle lies outside viewing path

356252, 33241, G02B 2310

Patent

active

048773247

ABSTRACT:
The optical aiming device may be mounted on firearms. It comprises a light-collecting rod (8) consisting of a phosphor material to illuminate a central circular spot (22) of an aiming mark (6). Such illumination passes through a truncated hollow cone (25) and is used for good ambient light conditions. For poor ambient light four tritium luminous cells (18, 19, 20, 21) are mounted around the truncated hollow cone (25). Each tritrium cell illuminates one radial line component (23) of the aiming mark (6) via the external mirrored lateral area of cone (25). To adapt the brightness of the aiming mark to the brightness of the target the tritium luminous cells (18, 19, 20, 21) may be shifted on a circle around cone (25) with respect to the line components (23) of aiming mark (6).

REFERENCES:
patent: 2476340 (1949-07-01), Wallhausen
patent: 2780130 (1957-02-01), Mauer
patent: 3813790 (1974-06-01), Kaltmann
patent: 3880529 (1975-04-01), Althause et al.
patent: 3994597 (1976-11-01), Calder et al.

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