Sight scope

Details Sight scope Sight scope

1994-04-25

1996-04-16

Nguyen, Thong Q.

Optical: systems and elements

Compound lens system

Telescope

359236, 359399, 356252, 33241, G02B 2300, G02B 2602, G02B 2310, F41G 132

Patent

active

055088430

ABSTRACT:
In a sight scope device, a sleeve-like body is provided with a translucent mirror and a light source. Light emitted from the light source is reflected by the translucent mirror and proceeded toward an eyepiece side so as to served as an aiming point. A shield member interposed between the translucent mirror and the light source and having a plurality of through-holes is provided on the body. These through-holes have different areas, respectively, with each other. A movement of the shield member on a plane which is generally perpendicular to an axis of the body causes one of the through-holes to be selectively arranged or appeared on a line connecting the light source and the translucent mirror. The one of the through-holes is selected depending on a distance to a target.

REFERENCES:
patent: 3672782 (1972-06-01), Akin
patent: 3994597 (1976-11-01), Calder et al.
patent: 4417814 (1983-11-01), Doliber
patent: 4665622 (1987-05-01), Idan
patent: 4859058 (1989-08-01), Ekstrand

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