CN220524767U - Holographic diffraction sighting device - Google Patents

Abstract

The utility model discloses a holographic diffraction sighting device which comprises a shell, a laser and an optical lens group, wherein the laser is positioned at one side of the interior of the shell, the optical lens group is positioned in the interior of the shell and far away from the laser, and a lifting structure capable of driving the laser to lift is arranged in the interior of the shell. The lifting structure comprises a rotating shaft rotatably arranged in the shell, a threaded part arranged at the lower part of the rotating shaft, a nut in threaded connection with the circumference of the threaded part and a knob which is positioned outside the shell and can drive the rotating shaft to rotate, and the laser is fixed at one side of the nut; when the position required by the visual field needs to be adjusted, the rotary shaft can be rotated by rotating the knob, so that the screw force is generated between the nut and the screw thread part, the nut can move up and down, the laser is driven to lift, and the adjustment is convenient.

Description

Holographic diffraction sighting device

Technical Field

The utility model relates to the technical field of sights, in particular to a holographic diffraction sight.

Background

The holographic diffraction sighting device aims quickly and shoots with high precision, can be used normally in extreme environments, and can be equipped on various guns, grenades, rocket barrels and other equipment. At present, the holographic diffraction sighting device cannot effectively overcome the drift of the central wavelength of the laser, so that the further improvement of the collimation precision of the laser is limited, and further the phenomena of large focal length, aberration, parallax, large fuzzy noise of aiming split picture images, low brightness, twin images and the like are directly caused, so that larger errors exist in aiming, and the sighting device cannot be used for actual combat;

therefore, in the patent with publication number of CN215952357U, a holographic diffraction sighting device is proposed, which processes light rays through an H diffraction grating filter and an F holographic image window sheet and generates a holographic sighting device image, so that the definition of the holographic sighting device image can be effectively improved, the problem of laser center wavelength drift is solved, the situations of large fuzzy noise, low brightness, twin image generation and the like of a sighting split picture image are further reduced, the sighting precision is improved, two reflectors are arranged, the light path direction is changed twice, the distance between a laser and each lens is further reduced, the volume of a body is further reduced, and the light weight is realized; but it has the disadvantage that the height of the laser is not adjustable, which makes it inconvenient to adjust the light to the desired field of view.

Disclosure of Invention

The utility model aims to provide a holographic diffraction sighting device, which solves the problems that the height of a laser in the prior art is not adjustable and the light is inconvenient to adjust to a required field of view.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a holographic diffraction sight, includes the shell, is located the inside laser instrument of one side of shell and is located the inside optical lens piece group who keeps away from the laser instrument of shell, the inside of shell is equipped with the elevation structure that can drive the laser instrument and go up and down.

Preferably, the lifting structure comprises a rotating shaft rotatably arranged in the shell, a threaded part arranged at the lower part of the rotating shaft, a nut in threaded connection with the circumference outside of the threaded part and a knob positioned outside the shell and capable of driving the rotating shaft to rotate, and the laser is fixed at one side of the nut.

Preferably, a guide rod parallel to the rotation axis is fixed to the inside of the housing, and passes through the nut.

Preferably, the optical lens group comprises a first reflecting mirror positioned at one side of the shell, a second reflecting mirror arranged above the first reflecting mirror obliquely, a grating filter plate positioned at one side of the second reflecting mirror close to the first reflecting mirror and a view port mirror arranged at one side of the grating filter plate far away from the first reflecting mirror, wherein an optical protection plate is arranged at one side of the view port mirror close to the grating filter plate.

Preferably, a rotation adjusting component capable of driving the second reflecting mirror to rotate is arranged in the shell.

Compared with the prior art, the utility model has the beneficial effects that:

1. the lifting structure capable of driving the laser to lift is arranged in the shell, so that the height of the laser can be adjusted, the visual field can be adjusted to a required position, and the laser lifting device is convenient to use;

2. when the position required by the visual field is required to be adjusted, the rotary shaft can be rotated by rotating the knob, so that the screw force is generated between the nut and the screw part, the nut can move up and down, the laser is driven to lift, and the adjustment is convenient.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is an overall view of the present utility model;

fig. 2 is a schematic structural view of the lifting mechanism of the present utility model.

In the figure: 1. a housing; 2. a laser; 3. a first mirror; 4. a second mirror; 5. a grating filter; 6. a view port mirror; 7. an optical protective sheet; 8. a lifting structure; 81. a knob; 82. a rotation shaft; 83. a nut; 84. a guide rod; 85. a threaded portion; 9. and rotating the adjusting assembly.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, in an embodiment of the present utility model, a holographic diffraction sighting device includes a housing 1, a laser 2 located at one side of the interior of the housing 1, and an optical lens set located in the interior of the housing 1 and far from the laser 2, wherein laser light of the laser 2 can be adjusted by the optical lens assembly to function as a sighting device;

as shown in fig. 1, a lifting structure 8 capable of driving the laser 2 to lift is arranged inside the casing 1, and therefore, the height of the laser 2 can be adjusted to adjust the view field to a required position;

as shown in fig. 1 and 2, the lifting structure 8 includes a rotation shaft 82 rotatably installed in the housing 1, a screw thread portion 85 disposed at the lower portion of the rotation shaft 82, a nut 83 screwed on the outer circumference of the screw thread portion 85, and a knob 81 positioned at the outer portion of the housing 1 and capable of driving the rotation shaft 82 to rotate, the laser 2 is fixed at one side of the nut 83, the rotation shaft 82 can be rotated when the knob 81 is rotated, thereby driving the nut 83 and the screw thread portion 82 to generate a screw force, and the nut 83 can move up and down, preferably, a guide rod 84 parallel to the rotation shaft 82 is fixed in the housing 1, the guide rod 84 passes through the nut 83, and the guide rod 84 can guide the nut 83, thereby preventing the nut 83 from rotating;

the optical lens group here includes the first speculum 3 that is located shell 1 one side, set up at the second speculum 4 of first speculum 3 oblique top, be located the grating filter 5 of second speculum 4 near first speculum 3 one side and install the periscope 6 that is kept away from first speculum 3 one side top at grating filter 5, the side that periscope 6 is close to grating filter 5 is equipped with optical protection piece 7, the inside of preferred shell 1 is equipped with the rotatory regulation subassembly 9 of drivable 4 second speculum, above-mentioned is prior art, it is not repeated here.

The working principle and the using flow of the utility model are as follows: when the device is used, when the position required by the visual field needs to be adjusted, the rotary shaft 82 can be rotated when the knob 81 is rotated, so that the screw force is generated between the nut 83 and the screw thread part 82, the nut 83 can move up and down, preferably, the guide rod 84 parallel to the rotary shaft 82 is fixed in the shell 1, the guide rod 84 passes through the nut 83, the guide rod 84 can guide the nut 83, and the nut 83 is prevented from rotating.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides a holographic diffraction sight, includes shell (1), is located laser instrument (2) of shell (1) inside one side and is located the inside optical lens piece group who keeps away from laser instrument (2) of shell (1), its characterized in that: the laser device is characterized in that a lifting structure (8) capable of driving the laser device (2) to lift is arranged in the shell (1).

2. A holographic diffraction aimer as claimed in claim 1, wherein: the lifting structure (8) comprises a rotating shaft (82) rotatably arranged inside the shell (1), a threaded portion (85) arranged at the lower portion of the rotating shaft (82), a nut (83) in threaded connection with the circumference outside the threaded portion (85) and a knob (81) which is arranged outside the shell (1) and can drive the rotating shaft (82) to rotate, and the laser (2) is fixed on one side of the nut (83).

3. A holographic diffraction aimer as claimed in claim 2, wherein: a guide rod (84) parallel to the rotating shaft (82) is fixed inside the shell (1), and the guide rod (84) penetrates through the nut (83).

4. A holographic diffraction aimer as claimed in claim 1, wherein: the optical lens group comprises a first reflecting mirror (3) positioned on one side of the shell (1), a second reflecting mirror (4) arranged above the first reflecting mirror (3) obliquely, a grating filter plate (5) positioned on one side of the second reflecting mirror (4) close to the first reflecting mirror (3) and a view port mirror (6) arranged on one side, far away from the first reflecting mirror (3), of the grating filter plate (5), wherein an optical protection plate (7) is arranged on one side, close to the grating filter plate (5), of the view port mirror (6).

5. A holographic diffraction sight as claimed in claim 4, wherein the housing (1) is internally provided with a rotation adjustment assembly (9) for driving the second mirror (4) in rotation.