Fast alignment telescopic sight

• US 6,442,854 B1
• Filed: 03/30/2000
• Issued: 09/03/2002
• Est. Priority Date: 08/27/1999
• Status: Expired due to Fees

• Current Assignee: Wuhan Changjiang Optics Electron Co. Ltd.
• Original Assignee: Wuhan Changjiang Optics Electron Co. Ltd.
• Inventors: Liu, Kang, Xi, Shusheng
• Primary Examiner(s): Bennett, G. Bradley
• Application Number:
  US09/539,035
• Time in Patent Office: 887 Days
• Field of Search: 332/27, 332/97, 332/98, 332/86, 421/11, 421/19, 421/20, 421/22, 421/24, 421/25, 421/26, 421/30, 421/35, 421/36, 421/37
• US Class Current: 33/286
• CPC Class Codes: F41G 1/38 Telescopic sights specially adapted for smallarms or ordnance telescopic sights in general G02B; Supports or mountings therefor

Abstract

The invention relates to a fast alignment telescopic sight for use in connection with firearms to improve sighting accuracy. It comprises a tube, an optical sighting system, and an alignment unit. An alignment mark is provided in the target image plane of the optical sighting system, and is coupled to the tube through an adjustable connection unit. The adjustable connection unit comprises a base coupled to the tube, an adjustable positioning support mounted in the base, and a rotation pin passing through and secured to the adjustable positioning support. The alignment mark is secured to the front end of the rotation pin. The invention can be used for adjusting the alignment mark in arbitrary directions to ensure the alignment mark to be exactly located in the target image plane and at the center of the field of view against various manufacturing errors. The invention features simple construction, reliable performance and low manufacturing cost.

Claims

1. A fast alignment telescopic sight, comprising:

a tube;

an optical sighting system comprising an objective lens provided at the front end of said tube, an ocular lens provided at the back end of said tube, and inverting lenses and a reticule mounted in the tube;

an alignment unit provided in said tube;

an alignment mark positioned in the target image plane of said optical sighting system; and

an adjustable connection unit, by means of which said alignment mark is coupled to said tube so as to align the alignment mark in the target image plane.

2. A fast alignment telescopic sight according to claim 1, wherein said adjustable connection unit comprises

a base coupled to said tube;

an adjustable positioning support mounted in said base; and

a rotation pin mounted in said adjustable positioning support.

3. A fast alignment telescopic sight according to claim 2, further comprising

a joint bar, the back end of which is engaged into the front end of said rotation pin and the front end of which is coupled to said alignment mark;

and

a knob, to which the other end of said rotation pin is secured, and on the inner side of which an elastic pin is provided cooperating with a corresponding slot hole in the end surface of said positioning support to make said rotation pin have different fixed positions.

4. A fast alignment telescopic sight according to claim 2, wherein

said adjustable positioning support is coupled to said base through an elastic rubber ring;

said rotation pin passes through said adjustable positioning support and secured thereto; and

a plurality of adjustment screws are provided in radial direction along the edge of said base.

5. A fast alignment telescopic sight according to claim 3, wherein

said adjustable positioning support is screwed into said base;

two semi-spherical cavities are formed between said adjustable positioning support and said base, in which a spherical sleeve is provided; and

said rotation pin passes through said sleeve and secured thereto, and is engaged into said knob.

6. A fast alignment telescopic sight according to claim 4, wherein said joint bar is shaped like an eccentric shaft which is deflected in the direction of the axis of said tube, so that said alignment mark can leave the field of view completely when it is turned upwardly.

7. A fast alignment telescopic sight according to claim 4, wherein said joint bar and said alignment mark are formed as a single part.

8. A fast alignment telescopic sight according to claim 3, wherein

said joint bar and said alignment mark are integrally formed as a L-shaped part, the tail of which is directly secured to the front end of said rotation pin;

said rotation pin passes through said adjustable positioning support and secured thereto;

the other end of said rotation pin is screwed into said knob;

said adjustable positioning support is coupled to said base through an elastic rubber ring; and

a plurality of adjustment screws are provided in radial direction along the edge of said base.

9. A fast alignment telescopic sight according to claim 4, wherein said base is coupled to said tube through a washer.

10. A fast alignment telescopic sight according to claim 4, further comprising a cover on the outer side of said base, wherein an O-ring is provided between said base and said cover.

11. A fast alignment telescopic sight according to claim 8, wherein said connection unit is provided on the left side of said tube.

12. A fast alignment telescopic sight according to claim 1, wherein said alignment mark is a needle.

13. A fast alignment telescopic sight according to claim 1, wherein said alignment mark is a transparent plate on which markings are made.

14. A fast alignment telescopic sight according to claim 1, wherein the target image plane is between said inverting lenses and said objective lens.

15. A fast alignment telescopic sight according to claim 1, wherein the target image plane is between said inverting lenses and said ocular lens.