Eyepiece end cover for eliminating tunnel depth-of-field effect

Abstract

The utility model discloses an eyepiece end cover for eliminating tunnel depth-of-field effect, which is used for being mounted at the eyepiece end of an inner tube type red dot sighting device, and comprises an end cover mounting seat and an end cover body which are mounted at the eyepiece end of the inner tube type red dot sighting device, and the end cover body is detachably connected with the end cover mounting seat. An observation hole is formed in the center of the end cover body, and the inner diameter of the observation hole is smaller than the caliber of an eyepiece of the inner tube type red dot sighting device. The inner tube type red dot sighting device has the advantages that the inner tube type red dot sighting device is simply modified, the observation hole is smaller than the inner diameter of the sighting device so as to shield and eliminate the depth of field of a tunnel, the inner wall of the inner tube cannot be seen, the depth of field effect of the tunnel can be avoided, and the inner tube type red dot sighting device is simple in structure, convenient to install and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of inner-tube red dot sights, in particular to an eyepiece end cover for eliminating tunnel depth of field effect. Background Art

[0002] The current inner tube red dot sight includes an eyepiece end and an objective end. When in use, the objective end is aimed at the aimed object, and then the sight is observed and aimed from the eyepiece. However, when aiming from the eyepiece end of the inner tube red dot sight of the prior art, since the inner diameter of the eyepiece end is the same as the inner diameter of the objective end, the inner wall of the inner tube and the depth of field are seen, like a tunnel. Instead of a complete and clean observation field of view, this depth of field tunnel will seriously interfere with the user's observation of the target and use. Utility Model Content

[0003] The utility model aims to provide an eyepiece end cover for eliminating the tunnel depth of field effect, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an eyepiece end cover for eliminating the tunnel depth of field effect, which is used to be installed on the eyepiece end of an inner tube red dot sight, the end cover comprising an end cover mounting seat installed on the eyepiece end of the inner tube red dot sight and an end cover body, the end cover body and the end cover mounting seat are detachably connected, an observation hole is provided at the center of the end cover body, and the inner diameter of the observation hole is smaller than the aperture of the eyepiece of the inner tube red dot sight.

[0005] Preferably, an annular boss is provided on the edge of the observation hole.

[0006] Preferably, a hollow protrusion is provided on one side of the end cover body, an external thread is provided on the protrusion, an internal thread is provided on the inner wall of the end cover mounting seat, and the end cover body is threadedly connected to the end cover mounting seat.

[0007] Preferably, the protrusion is conical, the external thread on the protrusion is stepped, the mounting seat includes an inner bottom ring, the outer side of the inner bottom ring is provided with an inner recess, and the wall surface of the inner recess is provided with a stepped internal thread.

[0008] Preferably, the inner diameter of the protrusion is the same as the inner diameter of the inner bottom ring.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the utility model makes a simple modification to the inner tube red dot sight so that the observation hole is smaller than the inner diameter of the sight to cover and eliminate the tunnel depth of field, so that the inner wall of the inner tube cannot be seen, thereby avoiding the tunnel depth of field effect, having a simple structure, being easy to install and having a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a connection diagram of the utility model and an inner tube type red dot sight.

[0012] In the figure: 1. end cover; 11. end cover mounting base; 12. end cover body; 13. observation hole; 14. annular boss; 15. protrusion; 16. external thread; 17. internal thread; 18. inner bottom ring; 19. inner concave; 2. inner tube red dot sight. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figure 1 to Figure 2 The utility model provides a technical solution: an eyepiece end cover 1 for eliminating the tunnel depth of field effect, which is used to be installed at the eyepiece end of an inner tube red dot sight 2. The end cover 1 includes an end cover mounting seat 11 and an end cover body 12 installed at the eyepiece end of the inner tube red dot sight 2. The end cover body 12 is detachably connected to the end cover mounting seat 11. An observation hole 13 is provided at the center of the end cover body 12. The inner diameter of the observation hole 13 is smaller than the aperture of the eyepiece of the inner tube red dot sight 2.

[0015] Specifically, an annular boss 14 is provided on the edge of the observation hole 13, and the annular boss 14 can shield the light around the eyes when the human eye is observing and aiming.

[0016] Specifically, a hollow protrusion 15 is provided on one side of the end cover body 12, an external thread 16 is provided on the protrusion 15, an internal thread 17 is provided on the inner wall of the end cover mounting seat 11, and the end cover body 12 is threadedly connected to the end cover mounting seat 11 for easy installation and removal.

[0017] Specifically, the protrusion 15 is conical, the external thread 16 on the protrusion 15 is stepped, and the end cover mounting seat 11 includes an inner bottom ring 18 , the outer side of the inner bottom ring 18 is provided with an inner recess 19 , and the wall surface of the inner recess 19 is provided with a stepped internal thread 17 .

[0018] Specifically, the inner diameter of the protrusion 15 is the same as the inner diameter of the inner bottom ring 18 .

[0019] When in use, the end cover body 12 and the end cover mounting seat 11 are screwed together through threads. Since the inner diameter of the observation hole 13 is smaller than the caliber of the eyepiece of the inner tube red dot sight 2, when observing the real scene presented by the objective lens end from the eyepiece end, there will be no tunnel effect due to the existence of the inner tube, making the scene seen clearer.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An eyepiece end cap for eliminating the tunnel depth of field effect, used for installation at the eyepiece end of an inner tube red dot sight, characterized in that: The end cap comprises an end cap mounting seat and an end cap body installed at the eyepiece end of the inner tube red dot sight. The end cap body and the end cap mounting seat are detachably connected. An observation hole is provided at the center of the end cap body. The inner diameter of the observation hole is smaller than the caliber of the eyepiece of the inner tube red dot sight.

2. The eyepiece end cap for eliminating the tunnel depth of field effect according to claim 1, characterized in that: An annular boss is provided on the edge of the observation hole.

3. The eyepiece end cap for eliminating the tunnel depth of field effect according to claim 2, characterized in that: A hollow protrusion is provided on one side of the end cover body, an external thread is provided on the protrusion, an internal thread is provided on the inner wall of the end cover mounting seat, and the end cover body is threadedly connected to the end cover mounting seat.

4. The eyepiece end cap for eliminating the tunnel depth of field effect according to claim 3, characterized in that: The protrusion is conical, the external thread on the protrusion is stepped, the mounting seat comprises an inner bottom ring, the outer side of the inner bottom ring is provided with an inner recess, and the wall surface of the inner recess is provided with a stepped internal thread.

5. The eyepiece end cap for eliminating the tunnel depth of field effect according to claim 4, characterized in that: The inner diameter of the protrusion is the same as the inner diameter of the inner bottom ring.

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