Variable-power riflescope with range-compensating reticle and a

Details Variable-power riflescope with range-compensating reticle and a Variable-power riflescope with range-compensating reticle and a

1982-12-13

1985-02-05

Henry, Jon W.

G02B 2300

Patent

active

044975481

ABSTRACT:
This invention relates to a variable-power riflescope equipped with a novel range-compensating reticle system characterized by separating the horizontally-disposed element thereof from the vertically-disposed one, locating the former in the forward focal plane displaced off the optical axis and locating the latter in the rear focal plane while, at the same time, displacing the aiming point carried by the latter off the optical axis also. The resulting reticle system functions in cooperation with the means for varying the degree of image magnification in such a way that the shooter is enabled to precisely define two ranges, one near and one far, and shoot quite accurately at any distance therebetween. A further refined version of the same system allows the shooter to actually determine the range to a chosen target of known dimension an unknown distance away and in so doing automatically adjust the aiming point defined by the reticle system to coincide with the point of impact of the bullet. While the range is thus determinable, it is unnecessary to know since the optical system has made the required adjustment automatically that is needed to compensate for the trajectory of the bullet at such range. A field stop diaphragm is centered on the aiming point.

REFERENCES:
patent: 3386330 (1968-06-01), Burris et al.
patent: 3492733 (1970-04-01), Leatherwood
patent: 3782822 (1974-01-01), Spence
Herter's Catalogue No. 84, Aug. '73-Aug. '74, pp. 200-202.

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