Method and device for installing holographic sighting telescope concave mirror

Abstract

The invention relates to the technical field of holographic sighting telescopes, in particular to a holographic sighting telescope concave mirror installation method and device, which comprises a calibration light source, a concave mirror, a lens group and a receiving plate, the calibration light source emits light rays to irradiate the concave mirror, the concave mirror collimates and reflects the light rays, and the reflected light irradiates the lens group. The light spots are converged at the receiving plate by the lens group, and the theoretical mounting position of the concave mirror is judged by observing the drop point position of the light spots on the receiving plate. According to the method and device for installing the concave mirror of the holographic sighting telescope, by simulating the installation light path of the actual working environment of the holographic sighting telescope and utilizing cooperation of the calibration light source, the lens set and the cross-shaped target plate, the deviation condition of reflection light spots of the concave mirror is visually presented, and dependence on a complete light path system and complicated manual debugging are not needed.

Description

Technical Field

[0001] This invention relates to the field of holographic sight technology, specifically to a method and apparatus for installing a concave mirror of a holographic sight. Background Technology

[0002] A typical holographic sight optical path structure includes components such as a light source, a reflector, a concave mirror, a hologram, and a reticle. The concave mirror is used to collimate the laser beam and reflect the light onto the hologram at a specific angle. The hologram provides the necessary high-quality wavefront for generating and reconstructing the holographic reticle image.

[0003] Holograms are highly selective in angle. Installation deviations of the concave mirror, including positional offsets and angular tilts, will directly cause the reflected light to deviate from the designed path, severely reducing the efficiency of the hologram. This deviation is transmitted to the imaging of the holographic reticle, causing uneven brightness, blurred edges, inaccurate virtual image position, and even deformation or ghosting in the reconstructed reticle image. Ultimately, this manifests as fatal defects such as aiming point wobbling, discomfort in aiming with both eyes, and a severe decrease in pointing accuracy, causing the core performance of the scope to be completely lost.

[0004] Existing methods for installing concave mirrors rely on tedious manual adjustments within a complex and complete optical path system, resulting in low production efficiency. Furthermore, the adjustment results are susceptible to environmental interference, posing a risk to long-term stability. Summary of the Invention

[0005] Based on the above problems, this application proposes a method and device for installing a concave mirror of a holographic sight, which greatly simplifies the optical path structure, can directly and quickly determine the theoretical installation position of the concave mirror, and significantly reduces the technical dependence on operators and the stringent requirements of the debugging environment.

[0006] This application provides a method for installing a concave mirror of a holographic sight, including a calibration light source, a concave mirror, a lens group, and a receiving plate. The calibration light source emits light that shines on the concave mirror, which collimates and reflects the light. The reflected light shines on the lens group and is focused by the lens group onto the receiving plate. The theoretical installation position of the concave mirror is determined by observing the position of the light spot on the receiving plate.

[0007] In some embodiments, the positions of the calibration light source and lens group are designed to simulate the working environment of a concave mirror, and the installation position and angle of the concave mirror are determined by judging the reflected light from the concave mirror.

[0008] In some embodiments, the relative angle between the calibration light source and the concave mirror is the same as the relative angle between the reflector and the concave mirror in the holographic sight, and the relative angle between the lens group and the concave mirror is the same as the relative angle between the concave mirror and the hologram in the holographic sight.

[0009] In some embodiments, the lens group arranged in the reflected light path is used to converge the parallel light reflected by the concave mirror, reduce the spot size, and make the spot boundary clear, so as to facilitate the observation of the spot landing point.

[0010] In some embodiments, the receiving plate is located at the focal length of the lens group.

[0011] In some embodiments, the receiving plate is marked with a cross-shaped target pattern to facilitate the determination of the offset of the landing point position, providing a basis for adjusting the position of the concave mirror until the requirements are met.

[0012] The mounting device for the concave mirror of a holographic sight includes a support plate, a bracket, a mounting base, and a fixing block. A light source and a receiving tube are fixedly mounted on the fixing block. A lens group is disposed inside the receiving tube. The fixing block is fixedly mounted on the upper surface of the support plate. The mounting base and the support plate are connected by a bracket. The concave mirror is located on the top of the holographic sight housing. The holographic sight housing is inverted and mounted on the lower surface of the support plate, so that the reflecting surface of the concave mirror faces upward.

[0013] In some embodiments, a CCD camera is disposed above the receiving tube, a support rod is disposed on the top of the support plate, and the CCD camera is disposed on the outer side of the top of the support rod.

[0014] In some embodiments, the holographic sight housing has openings on both sides to facilitate adjustment of the position and angle of the concave mirror.

[0015] In some embodiments, a target plate corresponding to the lens group is provided on the outer side of the receiving tube, and the support plate is provided with through holes to allow light to pass through.

[0016] This invention has at least the following beneficial effects: By simulating the installation optical path of a holographic sight in its actual working environment, and utilizing the coordination of a calibration light source, lens group, and crosshair target plate, the offset of the reflected light spot from the concave mirror is presented intuitively. This eliminates the need for a complete optical path system and complex manual adjustments, allowing for rapid determination of the concave mirror's installation position and angular deviation. The device features a simple structure, convenient operation, reduced environmental interference, improved installation efficiency and calibration accuracy, and ensures the long-term stability of the concave mirror after installation, effectively avoiding problems such as blurred reticle images and decreased pointing accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the concave mirror mounting device for the holographic aiming scope of the present invention; Figure 2 for Figure 2 A magnified structural diagram at point A; Figure 3 This is a schematic diagram of the optical path for mounting the concave mirror of the holographic sight of the present invention.

[0018] In the diagram: 1. Support plate; 2. Holographic sight housing; 3. Mounting base; 4. Support rod; 5. Calibration light source; 6. Fixing block; 7. Lens group; 8. Receiver plate; 9. CCD camera; 10. Receiver tube; 11. Concave mirror; 12. Target plate; 13. Light source. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example: Please refer to Figures 1-3 The present invention provides a technical solution: a method for installing a concave mirror of a holographic sight, including a calibration light source 5, a concave mirror 11, a lens group 7, and a receiving plate 8. The calibration light source 5 emits light that shines on the concave mirror 11. The concave mirror 11 collimates and reflects the light. The reflected light shines on the lens group 7 and is focused by the lens group 7 onto the receiving plate 8. The theoretical installation position of the concave mirror 11 is determined by observing the position of the light spot on the receiving plate 8.

[0021] The position design of the calibration light source 5 and the lens group 7 simulates the working environment of the concave mirror 11. By judging the reflected light of the concave mirror 11, the installation position and angle of the concave mirror 11 can be effectively determined. The relative angle between the calibration light source 5 and the concave mirror 11 is the relative angle between the reflector and the concave mirror 11 in the holographic sight. The relative angle between the lens group 7 and the concave mirror 11 is the relative angle between the concave mirror 11 and the hologram in the holographic sight.

[0022] The light emitted by the calibration light source 5 shines on the concave mirror 11 at a fixed angle. The concave mirror 11 collimates and reflects the light according to the design parameters. The reflected parallel light is accurately projected onto the lens group 7. The lens group 7 adopts a cemented doublet achromatic lens, which can efficiently converge the parallel light, not only reducing the size of the light spot, but also eliminating stray light interference and improving the clarity of the light spot boundary.

[0023] The lens group 7, which is set in the optical path of the reflected light, is used to converge the parallel light reflected by the concave mirror 11, reduce the size of the light spot, and make the boundary of the light spot clear, so as to facilitate the observation of the landing point of the light spot.

[0024] The receiving plate 8 is located at the focal length of the lens group 7.

[0025] The receiving plate 8 is marked with a cross-shaped target pattern, which makes it easy to judge the deviation of the landing point position and provides a basis for adjusting the position of the concave mirror 11 until the requirements are met.

[0026] The optical route consists of four parts: calibration light source 5, concave mirror 11, lens group 7, and receiver board 8. Each component has a clear function and works in close coordination.

[0027] Please see Figures 1-3 This application also provides an installation device for a concave mirror of a holographic sight, including a support plate 1, a bracket 14, a mounting base 3, and a fixing block 6. A light source 13 and a receiver tube 10 are fixedly installed on the fixing block 6. A lens group 7 is installed inside the receiver tube 10. The fixing block 6 is fixedly installed on the upper surface of the support plate 1. The mounting base 3 is connected to the support plate 1 through the bracket 14. The concave mirror 11 is located on the top of the holographic sight housing 2. The holographic sight housing 2 is inverted and mounted on the lower surface of the support plate 1, so that the reflecting surface of the concave mirror 11 faces upward.

[0028] The support plate 1 of the mounting device is made of aviation aluminum alloy, which combines lightweight and high strength. The holographic sight housing 2 is mounted upside down on its lower surface, so that the concave mirror 11 faces upward, which not only facilitates light reception but also provides the operator with a wide adjustment space.

[0029] The holographic sight housing 2 has openings on both sides, facilitating the adjustment of the position and angle of the concave mirror 11. The mounting base 3 and bracket 14 allow the support plate 1 to be suspended below, making it easy to adjust the height of the support plate 1.

[0030] The receiver tube 10 is made of hard black material to absorb stray light and avoid interference.

[0031] A CCD camera 9 is mounted above the receiver tube 10, a support rod 4 is mounted on the top of the support plate 1, the CCD camera 9 is mounted on the outer side of the top of the support rod 4, a target plate 12 corresponding to the lens group 7 is mounted on the outer side of the receiver tube 10, and the support plate 1 has a through hole to allow light to pass through.

[0032] The CCD camera 9 in the above device is positioned directly opposite the target plate 12 to capture images of the target plate 12. The CCD camera 9 is connected to external image analysis software, which can more accurately analyze whether the spot is centered and improve the installation accuracy.

[0033] During actual installation, first, mark the installation area for the concave mirror 11 on the inside of the holographic sight housing 2. Use uncured UV-cured adhesive to initially fix the concave mirror 11 to the installation area. Then, invert the holographic sight housing 2 onto the lower surface of the support plate 1 and fix it in place. Turn on the light source 13, and the light shines through the through hole of the support plate 1 onto the concave mirror 11. After being reflected by the concave mirror 11 and converged by the lens group 7, the light falls onto the target plate 12. Observe whether the light spot at the target plate 12 falls on the center of the target plate. If not, the operator adjusts the position and angle of the concave mirror 11 through the openings on both sides of the holographic sight housing 2 so that the light spot falls on the center of the target plate. Finally, cure the adhesive to fix the concave mirror 11 to the holographic sight housing 2.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A method for mounting a concave mirror on a holographic sight, characterized in that: The system includes a calibration light source (5), a concave mirror (11), a lens group (7), and a receiving plate (8). The calibration light source (5) emits light that shines on the concave mirror (11). The concave mirror (11) collimates and reflects the light. The reflected light shines on the lens group (7) and is focused by the lens group (7) onto the receiving plate (8). The theoretical installation position of the concave mirror (11) is determined by observing the landing position of the light spot on the receiving plate (8).

2. The method for installing the concave mirror of the holographic sight according to claim 1, characterized in that: The positions of the calibration light source (5) and lens group (7) are designed to simulate the working environment of the concave mirror (11). The installation position and angle of the concave mirror (11) are determined by judging the reflected light of the concave mirror (11).

3. The method for installing the concave mirror of the holographic sight according to claim 1, characterized in that: The relative angle between the calibration light source (5) and the concave mirror (11) is the relative angle between the reflector and the concave mirror (11) in the holographic sight, and the relative angle between the lens group (7) and the concave mirror (11) is the relative angle between the concave mirror (11) and the hologram in the holographic sight.

4. The method for installing the concave mirror of the holographic sight according to claim 1, characterized in that: The lens group (7) set in the reflected light path is used to converge the parallel light reflected by the concave mirror (11), reduce the size of the light spot, and make the boundary of the light spot clear, so as to facilitate the observation of the landing point of the light spot.

5. The method for installing the concave mirror of the holographic sight according to claim 1, characterized in that: The receiving plate (8) is located at the focal length of the lens group (7).

6. The method for installing the concave mirror of the holographic sight according to claim 1, characterized in that: The receiving plate (8) is marked with a cross target pattern, which makes it easy to judge the offset of the landing point and provides a basis for adjusting the position of the concave mirror (11) until the requirements are met.

7. A mounting device for a concave mirror of a holographic sight, applicable to the mounting method of the concave mirror of a holographic sight according to any one of claims 1-6, characterized in that, The system includes a support plate (1), a bracket (14), a mounting base (3), and a fixing block (6). A light source (13) and a receiving tube (10) are fixedly mounted on the fixing block (6). A lens group (7) is provided inside the receiving tube (10). The fixing block (6) is fixedly mounted on the upper surface of the support plate (1). The mounting base (3) is connected to the support plate (1) through the bracket (14). The concave mirror (11) is located on the top of the holographic sight housing (2). The holographic sight housing (2) is inverted on the lower surface of the support plate (1), so that the reflecting surface of the concave mirror (11) faces upward.

8. The mounting device for the concave mirror of the holographic sight according to claim 7, characterized in that: A CCD camera (9) is provided above the receiving tube (10), and a support rod (4) is provided on the top of the support plate (1). The CCD camera (9) is located on the outer side of the top of the support rod (4).

9. The mounting device for the concave mirror of the holographic sight according to claim 7, characterized in that: The holographic sight housing (2) has openings on both sides, which facilitates the adjustment of the position and angle of the concave mirror (11).

10. The mounting device for the concave mirror of the holographic sight according to claim 7, characterized in that: The outer side of the receiving tube (10) is provided with a target plate (12) corresponding to the lens group (7), and the support plate (1) is provided with a through hole so that light can pass through.

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