Dual-light lens structure and dual-light photoelectric sighting telescope

Abstract

The utility model belongs to the technical field of optical lenses, and provides a bifocal lens structure which comprises an infrared lens assembly and a visible light lens assembly. The infrared lens assembly comprises an infrared lens barrel, and a first infrared lens and a second infrared lens which are respectively arranged at two ends of the infrared lens barrel; the visible light lens assembly comprises a visible light lens barrel and a mounting bracket arranged on the visible light lens barrel; the visible light lens cone is mounted in the infrared lens cone through a mounting bracket; a visible light lens is arranged in the visible light lens barrel; the first infrared lens, the visible light lens and the second infrared lens are coaxially arranged along an optical axis. The visible light lens assembly is fixed in the infrared lens assembly, so that optical axis consistency and dual-light common-path are guaranteed, rapid installation and adjustment can be achieved, and the advantages of miniaturization and light weight are achieved. In addition, the front end of the visible light lens assembly is sealed through glue dispensing, soft positioning is conducted through a sealing ring, impact of the whole machine is buffered, the lens is sealed, and stability of devices in the sighting telescope and the optical axis is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical lenses, and in particular relates to a dual-light lens structure and a dual-light photoelectric sight. Background Art

[0002] Existing bifocal sights typically use a separate lens structure, with the infrared and visible light lenses, or the infrared and laser lenses, or the visible light and laser lenses, separately assembled on structural components. These components are then adjusted to ensure optical axis alignment. This requires numerous manual adjustments during installation and adjustment, making assembly and disassembly inconvenient. Furthermore, the sight is bulky and heavy, hindering miniaturization and lightweighting. Summary of the Invention

[0003] The utility model aims to overcome the problems in the prior art of large size and weight of the bifocal sight lens and complicated assembly and adjustment.

[0004] To this end, the utility model provides a dual-light lens structure, including an infrared lens assembly and a visible light lens assembly; the infrared lens assembly includes an infrared lens barrel and a first infrared lens and a second infrared lens respectively arranged at both ends of the infrared lens barrel; the visible light lens assembly includes a visible light lens barrel and a mounting bracket arranged on the visible light lens barrel; the visible light lens barrel is installed in the infrared lens barrel through the mounting bracket; a visible light lens is provided in the visible light lens barrel; the first infrared lens, the visible light lens, and the second infrared lens are coaxially arranged along the optical axis.

[0005] Specifically, a bracket mounting groove is provided in the infrared lens barrel; the mounting bracket is installed in the bracket mounting groove.

[0006] Specifically, a bracket pressing ring matching the bracket mounting groove is provided in the infrared lens barrel; the mounting bracket is clamped between the bracket pressing ring and the bracket mounting groove.

[0007] Specifically, the first infrared lens has a surface facing the second infrared lens that is concave and has a through hole at its center; one end of the visible light lens barrel is plugged into the through hole, and the visible light lens is located in the through hole.

[0008] Specifically, the connection between the first infrared lens and the visible light lens barrel is filled with a glue layer.

[0009] Specifically, the visible light lens is fixed to one end of the visible light lens barrel through a visible light pressure ring.

[0010] Specifically, a visible light sensor plate is provided at one end of the visible light lens barrel which is away from the visible light lens.

[0011] Specifically, the visible light lens barrel is provided with a wire groove for routing the visible light sensor board.

[0012] Specifically, a sealing ring is provided at the connection between the visible light pressure ring and the visible light lens barrel.

[0013] Specifically, a visible light spacer is provided in the visible light lens barrel; the visible light lens is fixed between the visible light pressure ring and the visible light spacer.

[0014] The utility model also provides a dual-light photoelectric sight, comprising the dual-light lens structure.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0016] The dual-optic lens structure provided by this utility model secures the visible light lens assembly within the infrared lens assembly, ensuring optical axis consistency and sharing the same optical path for quick assembly and adjustment, offering the advantages of miniaturization and lightweighting. Furthermore, a central opening in the infrared lens is sealed with glue at the front end of the visible light lens assembly, and softly positioned with a sealing ring. This cushions impacts on the entire system and seals the lens, mitigating impact vibrations and effectively protecting the optical components within the sight and the stability of the sight's optical axis.

[0017] The present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the bifocal lens structure provided by the utility model.

[0019] Figure 2 It is a side view of the dual-light lens structure provided by the utility model.

[0020] Figure 3 This is a cross-sectional view of a visible light lens assembly of a dual-light lens structure provided by the present invention.

[0021] Figure 4 It is a side view of the visible light lens assembly of the dual light lens structure provided by the utility model.

[0022] Figure 5 This is a cross-sectional view of an infrared lens assembly with a dual-light lens structure provided by the utility model.

[0023] Figure 6 This is a side view of the infrared lens assembly with a dual-light lens structure provided by the utility model.

[0024] Explanation of the accompanying reference numerals: 1. Infrared lens assembly; 101. Infrared lens barrel; 102. First infrared lens; 103. Second infrared lens; 104. Bracket mounting groove; 105. Through hole; 106. Objective lens pressure ring; 2. Visible light lens assembly; 201. Visible light lens barrel; 202. Mounting bracket; 203. Visible light lens; 204. Visible light pressure ring; 205. Sealing ring; 206. Visible light spacer; 207. Visible light sensor board; 3. Bracket pressure ring. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; and in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0028] Reference Figure 1-6The present invention provides a dual-light lens structure, comprising an infrared lens assembly 1 and a visible light lens assembly 2. The infrared lens assembly 1 includes an infrared lens barrel 101, and first and second infrared lenses 102, 103, respectively disposed at opposite ends of the infrared lens barrel 101. An objective lens retaining ring 106 is preferably used to secure the first and second infrared lenses 102, 103. The visible light lens assembly 2 includes a visible light lens barrel 201 and a mounting bracket 202 disposed on the visible light lens barrel 201. The visible light lens barrel 201 is mounted within the infrared lens barrel 101 via the mounting bracket 202. The visible light lens 203 is disposed within the visible light lens barrel 201. The first, visible, and second infrared lenses 102, 203, and 103 are coaxially arranged along an optical axis. During use, the dual-light lens structure can be installed in corresponding positions on a dual-light electro-optical sight.

[0029] Specifically, the infrared lens barrel 101 is provided with a bracket mounting groove 104 that matches the mounting bracket 202; the mounting bracket 202 is installed in the bracket mounting groove 104. The mounting bracket 202 and the bracket mounting groove 104 are preferably hollowed out according to the actual propagation path of light to avoid interference with the light path.

[0030] In order to improve the installation stability of the visible light component, a bracket pressing ring 3 matching the bracket mounting groove 104 is provided in the infrared lens barrel 101; the mounting bracket 202 is clamped between the bracket pressing ring 3 and the bracket mounting groove 104, and the coaxiality of the dual light axis is ensured by tolerance matching.

[0031] Optionally, bracket mounting groove 104 is a hollow annular groove with a central space for the light path to pass through. Mounting bracket 202 is an annular structure that is sleeved onto the outside of visible light lens barrel 201. One end of visible light lens barrel 201 passes through the hollow portion of bracket mounting groove 104, allowing mounting bracket 202 to snap into place within bracket mounting groove 104. Bracket pressing ring 3 then presses the mounting bracket 202 firmly into the bracket mounting groove 104.

[0032] Furthermore, one side of the first infrared lens 102 facing the second infrared lens 103 is concave and has a through hole 105 at the center; one end of the visible light lens barrel 201 is plugged into the through hole 105, and the visible light lens 203 is located in the through hole 105, and the through hole 105 provides certain support for the visible light lens barrel 201.

[0033] To seal the lens, glue is applied at the front end of the visible light assembly. This means that a layer of glue is filled in the gap between the first infrared lens 102 and the visible light lens barrel 201, and in the end of the visible light lens barrel 201 where the visible light lens 203 is located. This not only seals the lens, but also radially secures the visible light lens 203.

[0034] In one embodiment, the visible light lens 203 is fixed to one end of the visible light lens barrel 201 by a visible light pressure ring 204. The visible light pressure ring 204 axially secures the visible light lens 203, ensuring its stable position within the lens barrel, thereby ensuring stable optical performance.

[0035] Preferably, a sealing ring 205 is further provided at the connection between the visible light pressure ring 204 and the visible light lens barrel 201 to perform soft positioning of the visible light lens barrel 201 .

[0036] In an optimized embodiment, a visible light sensor board 207 is provided at the end of the visible light lens barrel 201 facing away from the visible light lens 203. The visible light sensor board 207 receives signals and reacts to detect the position of objects, cushions the impact of the entire device, and seals the lens.

[0037] To facilitate sensor board installation, a cable groove is reserved on the visible light lens barrel 201 for routing the sensor board. The visible light sensor board 207 is fixed to the end face of one side of the visible light lens barrel 201, and the cable is routed through the reserved groove on the visible light lens barrel 201, planning the connection lines inside the lens.

[0038] Furthermore, a visible light spacer 206 is provided in the visible light lens barrel 201; the visible light lens 203 is fixed between the visible light pressure ring 204 and the visible light spacer 206, which on the one hand improves the axial fastening of the visible light lens 203, and on the other hand blocks excess light from the side or back, reducing light scattering and reflection.

[0039] Preferably, the first infrared lens 102 and the second infrared lens 103 have a structure with one side concave and one side convex, with the convex side of the second infrared lens 103 facing the first infrared lens 102. Furthermore, the R value of the first infrared lens 102 is greater than that of the second infrared lens 103, meaning that the radius of the first infrared lens 102 is greater than that of the second infrared lens 103. This arrangement helps expand the horizontal field of view of the lens, further increasing the observation distance of the lens, meeting the requirements for observing distant targets at night.

[0040] Embodiment 1: The present invention provides a dual-light lens structure, comprising an infrared lens assembly 1 and a visible light lens assembly 2 .

[0041] The infrared lens assembly 1 includes an infrared lens barrel 101 and a first infrared lens 102 and a second infrared lens 103, respectively, disposed at either end of the infrared lens barrel 101. The first infrared lens 102 and the second infrared lens 103 have a lens structure with one concave surface and one convex surface, with the convex surface of the second infrared lens 103 facing the first infrared lens 102. The radius of the first infrared lens 102 is larger than that of the second infrared lens 103. A through-hole 105 is defined at the center of the first infrared lens 102. A bracket mounting slot 104 is defined within the infrared lens barrel 101 and is located between the first infrared lens 102 and the second infrared lens 103.

[0042] The visible light lens assembly 2 includes a visible light lens barrel 201, which is equipped with a visible light spacer 206. A visible light lens 203 is mounted on one end of the visible light lens barrel 201, and a visible light sensor board 207 is mounted on the other end. The visible light lens 203 is secured to the end of the visible light lens barrel 201 by a visible light pressure ring 204 and the visible light spacer 206. A sealing ring 205 is attached to the outer surface of the visible light lens barrel 201, located at the junction of the visible light pressure ring 204 and the visible light lens barrel 201 to seal the connection. A cable groove is provided in the visible light lens barrel 201, through which the visible light sensor board 207 is routed. One end of the visible light lens barrel 201, where the visible light lens 203 is located, plugs into the through-hole 105 in the center of the first infrared lens 102, with the visible light lens 203 positioned within the through-hole 105. The visible light lens barrel 201 is externally connected with a mounting bracket 202 , and the mounting bracket 202 is pressed into the bracket mounting groove 104 through a bracket pressing ring 3 .

[0043] The first infrared lens 102 , the visible light lens 203 , and the second infrared lens 103 are coaxially arranged along the optical axis.

[0044] After the infrared lens assembly 1 and the visible light lens assembly 2 of the dual-light lens structure are assembled, glue is applied to the front end of the visible light assembly for sealing.

[0045] The dual-light lens structure provided in this embodiment features a central opening in the infrared lens. Visible light lens assembly 2 is secured within infrared lens assembly 1 via mounting bracket 202 and bracket mounting slot 104. Precision circumferential alignment ensures optical axis consistency, sharing a common optical path for both beams, enabling rapid assembly and adjustment, and offering advantages in miniaturization and lightweight design. Furthermore, a glue seal at the front end of visible light lens assembly 2 and soft positioning with sealing ring 205 cushion the impact of the entire device, seal the lens, mitigate impact vibration, and effectively protect the optical components within the sight and the stability of the sight's optical axis.

[0046] The above examples are merely illustrative of the present invention and do not constitute a limitation on the scope of protection of the present invention. Any design that is identical or similar to the present invention falls within the scope of protection of the present invention.

Claims

1. A dual-light lens structure, characterized by: The invention comprises an infrared lens assembly (1) and a visible light lens assembly (2); the infrared lens assembly (1) comprises an infrared lens barrel (101) and a first infrared lens (102) and a second infrared lens (103) respectively arranged at two ends of the infrared lens barrel (101); the visible light lens assembly (2) comprises a visible light lens barrel (201) and a mounting bracket (202) arranged on the visible light lens barrel (201); the visible light lens barrel (201) is mounted in the infrared lens barrel (101) via the mounting bracket (202); a visible light lens (203) is arranged in the visible light lens barrel (201); the first infrared lens (102), the visible light lens (203), and the second infrared lens (103) are coaxially arranged along an optical axis.

2. The dual-light lens structure according to claim 1, wherein: A bracket mounting groove (104) is provided in the infrared lens barrel (101); the mounting bracket (202) is mounted in the bracket mounting groove (104).

3. The dual-light lens structure according to claim 2, wherein: A bracket pressing ring (3) matching the bracket mounting groove (104) is provided in the infrared lens barrel (101); the mounting bracket (202) is clamped between the bracket pressing ring (3) and the bracket mounting groove (104).

4. The dual-light lens structure according to claim 1, wherein: A surface of the first infrared lens (102) facing the second infrared lens (103) is concave and has a through hole (105) at its center; one end of the visible light lens barrel (201) is plugged into the through hole (105), and the visible light lens (203) is located in the through hole (105).

5. The bifocal lens structure according to claim 4, wherein: The connection between the first infrared lens (102) and the visible light lens barrel (201) is filled with a glue layer.

6. The dual-light lens structure according to claim 1, wherein: The visible light lens (203) is fixed to one end of the visible light lens barrel (201) via a visible light pressure ring (204).

7. The dual-light lens structure according to claim 6, wherein: A visible light sensor plate (207) is provided at one end of the visible light lens barrel (201) facing away from the visible light lens (203).

8. The dual-light lens structure according to claim 6, wherein: A sealing ring (205) is provided at the connection between the visible light pressure ring (204) and the visible light lens barrel (201).

9. The bifocal lens structure according to claim 6, wherein: A visible light spacer ring (206) is provided in the visible light lens barrel (201); and the visible light lens (203) is fixed between the visible light pressure ring (204) and the visible light spacer ring (206).

10. A dual-light electro-optical sight, characterized by: The invention comprises the dual-light lens structure described in any one of claims 1 to 9.

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