Anti-impact aiming infrared lens

Abstract

The utility model provides an anti-impact aiming infrared lens, which relates to the technical field of optical devices and comprises a main lens barrel, a first lens, a second lens, a lens pressing ring, a sealing ring, an axial buffer layer and a radial buffer layer. A first lens groove and a second lens groove are formed in the front end and the rear end of the main lens barrel respectively, pressing ring grooves, first buffering grooves and second buffering grooves are formed in the front sides, the rear sides and the circumferential sides of the first lens groove and the second lens groove respectively, and the first lens and the second lens are installed in the first lens groove and the second lens groove respectively. The sealing ring is arranged at the edge of the first lens and the edge of the second lens, the lens pressing ring is arranged in the pressing ring groove and covers the front side of the sealing ring, the axial buffer layer is arranged in the first buffer groove, and the radial buffer layer is arranged in the second buffer groove. And the lens is very difficult to take out and is very easy to be impacted to be damaged when being taken out.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical device technical field, concretely relates to an anti-impact collimating infrared lens. BACKGROUND

[0002] The existing infrared lens material is usually made of crystal materials such as germanium, silicon and zinc selenide, which has the defect that the materials are fragile and easy to be damaged, and usually measures need to be taken to prevent the lens from being broken due to vibration impact.

[0003] The fixing structure currently adopted is to increase the size of the frame, so that a gap is formed between the frame and the lens, the lens is first fixed in the frame, and instruments are used for correction and detection to make the lens in the correct position, then liquid silicone (liquid rubber) is injected into the gap (0.5-1mm) between the lens and the frame, and after 24 hours of solidification, rechecking is carried out, if it is unqualified, the infrared lens needs to be taken out and reassembled, which is very difficult to take out and is very easy to be damaged by impact when taken out, which not only has low work efficiency, but also has low recycling rate of unqualified products and high production cost. SUMMARY

[0004] In order to overcome the problems in the background art, the utility model provides an anti-impact collimating infrared lens, which solves the problems of poor impact resistance of the existing infrared lens mounting structure, difficulty in taking out the lens and damage of the lens caused by impact when taken out.

[0005] An anti-impact collimating infrared lens, comprising a main lens barrel, a first lens, a second lens, a first lens pressing ring, a first sealing ring, a first axial buffer layer, a first radial buffer layer, a second lens pressing ring, a second sealing ring, a second axial buffer layer and a second radial buffer layer, the front and rear ends of the main lens barrel are respectively provided with a first lens groove and a second lens groove, the front side, rear side and circumferential side of the first lens groove and the second lens groove are respectively provided with a pressing ring groove, a first buffer groove and a second buffer groove, the first lens and the second lens are respectively installed in the first lens groove and the second lens groove, the first sealing ring and the second sealing ring are arranged at the edge of the first lens and the second lens, the first lens pressing ring and the second lens pressing ring are arranged in the pressing ring groove and cover the front side of the first sealing ring and the second sealing ring, the first axial buffer layer and the second axial buffer layer are arranged in the first buffer groove, and the first radial buffer layer and the second radial buffer layer are arranged in the second buffer groove.

[0006] Further, the first axial buffer layer and the second axial buffer layer are a silicone rubber layer formed by coating the rear end surface of the first lens and the second lens.

[0007] Further, the first radial buffer layer and the second radial buffer layer are a silicone rubber layer formed by coating the outer edge of the first lens and the second lens.

[0008] Compared with the prior art, the utility model has the beneficial effects that:

[0009] The lens pressure ring, the sealing ring, the axial buffer layer, the radial buffer layer, the pressure ring groove, the first buffer groove and the second buffer groove are arranged, the lens is combined with the main lens barrel to be installed, the impact resistance is good when disassembling, when the lens or product effect does not meet the requirement, the lens can be quickly disassembled, the installation difficulty is reduced, the problem that the impact resistance of the infrared lens mounting structure of the existing infrared lens is poor, the lens is very difficult to take out, and the lens is damaged very easily when taking out is solved. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be described.

[0011] Fig. 1 It is a whole structure schematic diagram of the present application;

[0012] Fig. 2 It is a cross section structure schematic diagram of the present application.

[0013] 1-main lens barrel, 1a-first lens, 1b-second lens, 1c-first lens groove, 1d-second lens groove, 2-first lens pressure ring, 3-first sealing ring, 4-first axial buffer layer, 5-first radial buffer layer, 6-second lens pressure ring, 7-second sealing ring, 8-second axial buffer layer, 9-second radial buffer layer. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and beneficial effects of the present application more clear, the preferred embodiments of the present application will be described in detail below with reference to the drawings, so as to facilitate the understanding of the technical personnel.

[0015] The present application provides an anti-impact sighting infrared lens, which is referred to as Figs. 1-2The application discloses an anti-impact sighting infrared lens, which comprises a main lens barrel 1, a first lens 1a, a second lens 1b, a first lens pressing ring 2, a first sealing ring 3, a first axial buffer layer 4, a first radial buffer layer 5, a second lens pressing ring 6, a second sealing ring 7, a second axial buffer layer 8 and a second radial buffer layer 9.

[0016] The first sealing ring 3 and the second sealing ring 7 can seal the front sides of the first lens 1a and the second lens 1b, have a dustproof effect, the first lens pressing ring 2 and the second lens pressing ring 6 can press and fix the first sealing ring 3 and the second sealing ring 7 and improve the sealing effect, the first axial buffer layer 4 and the second axial buffer layer 8 can cooperate with the corresponding sealing rings to play an axial buffering role, and the first radial buffer layer 5 and the second radial buffer layer 9 play a radial buffering role, so that the lens is combined with the main lens barrel 1 in a soft and hard manner, the anti-impact property is good when the lens is disassembled and assembled, the lens can be quickly disassembled, and the assembly difficulty is low.

[0017] Referring to Figs. 1-2 The first axial buffer layer 4 and the second axial buffer layer 8 are silicon rubber layers formed by coating the rear end faces of the first lens 1a and the second lens 1b, play an axial buffering role, compared with a glue injection structure at a gap between a lens and a lens frame after traditional lens assembly, and are convenient to disassemble and are not prone to vibration impact.

[0018] Referring to Figs. 1-2 The first radial buffer layer 5 and the second radial buffer layer 9 are silicon rubber layers formed by coating the outer edges of the first lens 1a and the second lens 1b, play a radial buffering role, compared with a glue injection structure at a gap between a lens and a lens frame after traditional lens assembly, and are convenient to disassemble and are not prone to vibration impact.

[0019] Working process:

[0020] The second lens 1b is first installed in the main mirror barrel (1), and then the second axial buffer layer 8 and the second radial buffer layer 9 are coated on the second lens 1b and installed in the second lens groove 1d, then the second sealing ring 7 is installed at the front end of the second lens 1b and is pressed by the second lens pressing ring 6 to limit the axial displacement, and then the first lens 1a is installed, and the installation mode of the first lens 1a and the second lens 1b is the same, and when the recheck is unqualified, the above-mentioned reverse order is disassembled.

[0021] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A shockproof sighting infrared lens, characterized by: The main mirror barrel (1), the first lens (1a), the second lens (1b), the first lens pressing ring (2), the first sealing ring (3), the first axial buffer layer (4), the first radial buffer layer (5), the second lens pressing ring (6), the second sealing ring (7), the second axial buffer layer (8), and the second radial buffer layer (9) are included. The front end and the rear end of the main mirror barrel (1) are respectively provided with the first lens groove (1c) and the second lens groove (1d), and the front side, the rear side, and the circumferential side of the first lens groove (1c) and the second lens groove (1d) are respectively provided with the pressing ring groove (11), the first buffer groove (12), and the second buffer groove (13). The first lens (1a) and the second lens (1b) are respectively arranged in the first lens groove (1c) and the second lens groove (1d). The first sealing ring (3) and the second sealing ring (7) are respectively arranged at the front end edges of the first lens (1a) and the second lens (1b). The first lens pressing ring (2) and the second lens pressing ring (6) are arranged in the pressing ring groove (11) and cover the front sides of the first sealing ring (3) and the second sealing ring (7). The first axial buffer layer (4) and the second axial buffer layer (8) are arranged in the first buffer groove (12). The first radial buffer layer (5) and the second radial buffer layer (9) are arranged in the second buffer groove (13). The first axial buffer layer (4) and the second axial buffer layer (8) are silicon rubber layers coated on the rear end faces of the first lens (1a) and the second lens (1b). The first radial buffer layer (5) and the second radial buffer layer (9) are silicon rubber layers coated on the outer edges of the first lens (1a) and the second lens (1b). The first axial buffer layer (4) and the second axial buffer layer (8) are silicon rubber layers coated on the rear end faces of the first lens (1a) and the second lens (1b). The first radial buffer layer (5) and the second radial buffer layer (9) are silicon rubber layers coated on the outer edges of the first lens (1a) and the second lens (1b).

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