Gunsight and reticle therefor

• US 20020124452A1
• Filed: 03/06/2002
• Published: 09/12/2002
• Est. Priority Date: 12/08/1997
• Status: Active Grant

• Current Assignee: HVRT Corp
• Original Assignee: Horus Vision LLC (Horus Vision Reticle Technologies)
• Inventors: Sammut, Dennis J.
• Granted Patent: US 6,681,512 B2
• Time in Patent Office: Days
• US Class Current: 42/122
• CPC Class Codes: F41G 1/38 Telescopic sights specially adapted for smallarms or ordnance telescopic sights in general G02B; Supports or mountings therefor
• CPC Class Codes: G02B 23/14 Viewfinders for photographic apparatus G03B13/02
• CPC Class Codes: G02B 27/32 Fiducial marks and measuring scales within the optical system

Abstract

An improved telescopic gunsight is provided by combining a conventional telescopic gunsight with a reticle having a primary vertical cross-hair, a primary horizontal cross-hair intersecting the primary vertical cross-hair, a plurality of secondary horizontal cross-hairs having predetermined thickness evenly spaced a predetermined distance along the primary vertical cross-hair, a plurality of secondary vertical cross-hairs having predetermined thickness evenly spaced a predetermined distance along at least some of the secondary horizontal cross-hairs and an optical range-finder for quickly determining the range to the intended target. Some of the secondary horizontal cross-hairs are marked with a unique identifying character to assist the shooter in quickly finding an aiming point. The thickness of, and spacing between, the cross-hairs can be based upon an easy to learn inches of angle (or centimeters of angle) scale, or upon any other conventional scale, which can be the same or different from the scale used for the rangefinder. The rangefinder can be formed from vertical and horizontal arms. The vertical rangefinder arm can be superimposed over the primary vertical cross-hair and the horizontal rangefinder arm can be superimposed over the primary horizontal cross-hair as desired to provide a clearer field of vision.

Claims

1. An improved telescopic gunsight, comprising:

(a) a housing, including a means for mounting said housing in a fixed, predetermined position relative to a gun barrel;

(b) an objective lens mounted in said housing at one end thereof;

(c) an ocular lens mounted in said housing at an opposite end thereof;

(d) a reticle mounted in said housing between said objective lens and said ocular lens, said reticle having an optical center and a plurality of aiming points, said aiming points formed by a primary vertical cross-hair, a primary horizontal cross-hair intersecting said primary vertical cross-hair to form an upper right quadrant, an upper left quadrant, a lower left quadrant, and a lower right quadrant, a plurality of secondary horizontal cross-hairs intersecting said primary vertical cross hair and evenly spaced a predetermined distance along said primary vertical cross-hair, a plurality of secondary vertical cross-hairs intersecting at least some of said secondary horizontal cross-hairs and evenly spaced a predetermined distance along at least some of said secondary horizontal cross-hairs, each said intersecting cross-hair forming one of said plurality of aiming points, and rangefinding markings.

2. The improved gunsight of claim 1 additionally including variable power optics for permitting a user to select the optical power of the gunsight within a predetermined range, and wherein said reticle is mounted between said variable power optics and said objective lens.

3. The improved gunsight of claim 1 wherein said rangefinding markings and said cross-hairs are all based upon the same scale.

4. The improved gunsight of claim 1 wherein said rangefinding markings are provided in a different scale from that used for said cross-hairs.

5. The improved gunsight of claim 1 wherein at least some of said secondary horizontal cross-hairs each include a unique marking for identification purposes.

6. The improved gunsight of claim 4 wherein said rangefinding markings are provided in an inches of angle scale while said crosshairs are provided in a Mil Dot scale.

7. The improved gunsight of claim 1 wherein at least some of said rangefinding markings are located in one of said quadrants.

8. The gunsight of claim 7 wherein at least some of said rangefinding markings are located in one of said upper quadrants.

9. A reticle for use in a telescopic gunsight including a mount for mounting said gunsight in a fixed, predetermined position relative to a gun barrel, said reticle having an optical center and comprising:

(a) a primary vertical cross-hair having a predetermined thickness;

(b) a primary horizontal cross-hair having a predetermined thickness intersecting said primary vertical cross-hair to form an upper right quadrant, an upper left quadrant, a lower left quadrant, and a lower right quadrant;

(c) a plurality of secondary horizontal cross-hairs having predetermined thickness evenly spaced a predetermined distance along and intersecting said primary vertical cross-hair, each said secondary horizontal cross-hair forming an aiming point with said primary vertical cross-hair, each of said secondary horizontal cross-hairs being shorter than said primary horizontal cross-hair;

(d) a plurality of secondary vertical cross-hairs having predetermined thickness evenly spaced a predetermined distance along at least some of said secondary horizontal cross-hairs, each said secondary vertical cross-hair forming an aiming point with said secondary horizontal cross-hairs, each said secondary vertical cross-hair being shorter than said primary vertical cross-hair; and

,

(e) rangefinding markings.

10. The reticle of claim 9 wherein said rangefinding markings comprises a vertical rangefinding marking and an intersecting horizontal rangefinding marking, each of which is provided with a plurality of range finding cross-hairs spaced a predetermined distance along said vertical and said horizontal markings.

11. The reticle of claim 10 wherein said vertical rangefinding marking is superimposed on said primary vertical cross-hair.

12. The reticle of claim 11 wherein said vertical rangefinding marking is located above a point where said primary horizontal cross-hair intersects said primary vertical cross-hair.

13. The reticle of claim 10 wherein said horizontal rangefinding marking is superimposed on said primary horizontal cross-hair.

14. The reticle of claim 13 wherein said horizontal rangefinding marking is located to one side of a point where said primary vertical cross-hair and said primary horizontal cross-hair intersect.

15. The reticle of claim 9 wherein said thickness of and said predetermined spacing of said vertical and horizontal cross-hairs are based upon a first scale and said rangefinding markings are all based upon a second scale.

16. The reticle of claim 15 wherein said first scale and said second scale are the same.

17. The reticle of claim 15 wherein said first scale and said second scale are different.

18. The reticle of claim 17 wherein said second scale is selected from the group consisting of:

an inches of angle scale and a centimeters of angle scale.

19. The reticle of claim 9 wherein at least some of said secondary horizontal cross-hairs include a unique marking for identification purposes.

20. The reticle of claim 9 wherein said primary horizontal cross-hair intersects said primary vertical cross-hair at said optical center.

21. The reticle of claim 9 wherein said at least some of said rangefinding markings are located in one of said upper quadrants.

23. The method of claim 21 wherein said telescopic gunsight is calibrated for range before shooting at a target, whereby the horizontal cross-hairs are assigned known range values based upon relevant factors including the firearm and ammunition used.

22. A method for hitting a target of known or estimable size with a bullet fired from a firearm using a telescopic gunsight mounted to the firearm, the telescopic gunsight having a reticle with an optical center and a plurality of aiming points, a primary vertical cross-hair, a primary horizontal cross-hair intersecting said primary vertical cross-hair to form an upper right quadrant, an upper left quadrant, a lower left quadrant, and a lower right quadrant, a plurality of secondary horizontal cross-hairs intersecting and evenly spaced a predetermined distance along said primary vertical cross-hair, a plurality of secondary vertical cross-hairs intersecting and evenly spaced a predetermined distance along at least some of said secondary horizontal cross-hairs, each intersecting cross-hair forming one of the plurality of aiming points, unique identifying markings associated with at least some of said secondary horizontal cross-hairs, and an optical rangefinder, said method comprising the steps of:

(a) locating a target of known or estimable actual size;

(b) determining the number of evenly spaced, scaled markings on the rangefinder which span the target area, to determine an observed size;

(c) calculating range to the target using the relationship between the actual size and the observed size;

(d) selecting from said primary and secondary horizontal cross-hairs a horizontal cross-hair which has been predetermined to correlate to the calculated range;

(e) selecting as an aiming point on the selected horizontal cross-hair the intersection between the selected horizontal cross-hair and a vertical cross-hair based on windage considerations;

(f) aligning said selected aiming point with a center of said target; and

,

(g) shooting at the target.