A large-surface, low-distortion, athermal infrared lens

Abstract

The utility model relates to the technical field of infrared lenses, and discloses a large-target-surface, low-distortion, and athermal infrared lens, comprising a base, a support base being fixedly mounted on one side of the upper end of the base, a movable shaft being fixedly mounted on the upper end of the support base, a lower clamping base being fixedly mounted on the upper end of the movable shaft, a rotating shaft being fixedly mounted on one side of the upper end of the lower clamping base, an upper clamping block being fixedly mounted on the upper end of the rotating shaft, the upper clamping block being fixedly connected to a fixed block on one side of the lower clamping base, and a locking bolt being detachably connected to the upper end of the fixed block. When using the device, the lens can be disassembled and installed conveniently through the provided clamping structure, the angle of the lens can be adjusted through the provided telescopic rod, so that the lens body can be easily adjusted to different angles, and the provided connection structure can facilitate the disassembly and installation between the lens and the lens barrel, and also improves the stability of the installation, which can bring better prospects for use.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared lenses, in particular to a large-target-surface low-distortion athermal infrared lens. Background Art

[0002] As security monitoring systems become more and more popular and high-end, the performance of monitoring lenses including field of view, aperture, pixels, image size, etc. also needs to be further optimized. As a type of monitoring lens, wide-angle infrared lens has the characteristics of short focal length and wide field of view coverage, and is increasingly widely used. However, its distortion is relatively high, and well-controlled distortion is generally between 40% and 50%. In addition, the edge resolution of the image plane is not high, the aberration is difficult to correct, and the edge image quality is difficult to control, making its optical design relatively difficult.

[0003] However, it still has some disadvantages. For example, when the infrared lens is used, it needs to be installed on an appropriate fixing seat. In the current installation method, the lens and the fixing seat are usually directly assembled by threaded matching. However, because there is a gap between the threads, the lens is often tilted, that is, the lens and the fixing seat are not coaxial, which will seriously affect the imaging quality of the lens. In addition, during installation, personnel are required to manually adjust the installation angle, and the mounting bracket is not easy to adjust the installation angle of the infrared lens. After the lens is installed, its focal length and clarity cannot be adjusted. If adjustment is required, the outer shell of the lens must be removed, which cannot be removed quickly.

[0004] In order to solve the above problems, the present application proposes a large-target-area, low-distortion, athermal infrared lens. Utility Model Content

[0005] The utility model aims to provide a large-target-area low-distortion athermal infrared lens to solve the problems of inconvenient installation and adjustment in the prior art mentioned in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-target-surface, low-distortion, athermal infrared lens, comprising a base, a support seat being fixedly mounted on one side of the upper end of the base, a movable shaft being fixedly mounted on the upper end of the support seat, a lower clamping seat being fixedly mounted on the upper end of the movable shaft, a rotating shaft being fixedly mounted on one side of the upper end of the lower clamping seat, an upper clamping block being fixedly mounted on the upper end of the rotating shaft, a fixing block being fixedly connected to one side of the upper clamping block and a locking bolt being detachably connected to the upper end of the fixing block.

[0007] Preferably, an electric telescopic rod is fixedly mounted on the other side of the upper end of the base, a support block is fixedly mounted on the upper end of the electric telescopic rod, and an anti-slip pad is fixedly mounted on the upper end of the support block.

[0008] Preferably, a lens barrel is detachably mounted on the upper end of the lower clamping seat, a connecting thread block is fixedly connected to the upper end of the lens barrel, a connecting ring is connected to the upper end of the connecting thread block, connecting grooves are provided on both sides of the upper end of the connecting ring, a locking rod is movably connected to one side of the connecting groove, a threaded rod is threadedly connected to the inner cavity of the connecting thread block, a connecting block is fixedly connected to the upper end of the threaded rod, plug blocks are fixedly mounted on both sides of the connecting block, and a lens body is fixedly mounted on the upper end of the plug block.

[0009] Preferably, the lens barrel is located between the lower clamping seat and the upper clamping block, and the lower clamping seat and the upper clamping block are arranged in an arc shape.

[0010] Preferably, the anti-slip pad is detachably mounted on the lower end of the connecting block, and the supporting blocks are arranged in an arc shape.

[0011] Preferably, the outer wall of the threaded rod passes through the inner cavity of the connecting ring and is threadedly connected to the inner cavity of the connecting threaded block.

[0012] Preferably, one side of the insert block is detachably connected to the inner cavity of the connecting groove, and the outer wall of the lower end of the connecting block is detachably connected to the inner cavity of the connecting ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is convenient for disassembling and installing the lens by cooperating with each other through the arranged base, support seat, movable shaft, lower clamping seat, rotating shaft, upper clamping block, fixed block, locking bolt, electric telescopic rod, support block and anti-skid pad. Firstly, the lens barrel of the lens is placed on the lower clamping seat, and then the upper clamping block is rotated through the rotating shaft so that the fixed block on one side of the upper clamping block fits with the fixed block on one side of the lower clamping seat. Then the locking bolt is used to fix the two groups of fixed blocks in connection, so that the upper clamping block is fixedly connected to the lower clamping seat, and the lens is installed. The electric telescopic rod drives the lens at the upper end of the support block to extend and retract, and at the same time drives the movable shaft to rotate, so that the angle of the lens can be adjusted, and the lens body is convenient for adjusting different angles.

[0015] The utility model facilitates the disassembly and installation of the lens and the lens barrel by means of the mutual cooperation of the lens barrel, the connecting threaded block, the connecting ring, the connecting groove, the locking rod, the threaded rod, the connecting block and the inserting block. Firstly, the threaded rod is threadedly connected between the connecting ring and the connecting threaded block, and at the same time, the inserting block is inserted into the connecting groove, and then locked by the locking rod, so that the lens and the lens barrel are fixedly connected, which facilitates disassembly and installation and also improves the stability of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a large-target-surface, low-distortion, athermal infrared lens of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure of a large-target-surface, low-distortion, athermal infrared lens of the utility model;

[0018] Figure 3 This is a schematic diagram of the support and adjustment structure of a large-target-surface, low-distortion, athermal infrared lens of the utility model;

[0019] Figure 4 This is a schematic diagram of the lens structure of a large-target-area, low-distortion, athermal infrared lens of the utility model;

[0020] Figure 5 This is a schematic diagram of the lens installation structure of a large-target-surface, low-distortion, athermal infrared lens of the utility model;

[0021] Figure 6 This is a schematic diagram of the lens installation structure of a large-target-surface, low-distortion, athermal infrared lens of the utility model;

[0022] In the figure: 1. base; 2. support seat; 3. movable shaft; 4. lower clamping seat; 5. rotating shaft; 6. upper clamping block; 7. fixing block; 8. locking bolt; 9. electric telescopic rod; 10. support block; 11. anti-slip pad; 12. lens barrel; 13. connecting thread block; 14. connecting ring; 15. connecting groove; 16. locking rod; 17. threaded rod; 18. connecting block; 19. plug block; 20. lens body. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-Figure 3The utility model provides a technical solution: a large-target-surface low-distortion athermal infrared lens, comprising a base 1, a support base 2 is fixedly mounted on one side of the upper end of the base 1, a movable shaft 3 is fixedly mounted on the upper end of the support base 2, a lower clamping base 4 is fixedly mounted on the upper end of the movable shaft 3, a rotating shaft 5 is fixedly mounted on one side of the upper end of the lower clamping base 4, an upper clamping block 6 is fixedly mounted on the upper end of the rotating shaft 5, the upper clamping block 6 is fixedly connected to a fixed block 7 on one side of the lower clamping base 4, and a locking bolt 8 is detachably connected to the upper end of the fixed block 7, an electric telescopic rod 9 is fixedly mounted on the other side of the upper end of the base 1, a support block 10 is fixedly mounted on the upper end of the electric telescopic rod 9, an anti-skid pad 11 is fixedly mounted on the upper end of the support block 10, the anti-skid pad 11 is detachably mounted on the lower end of the connecting block 18, and the support block 10 is provided with the support block 10 The lens is arc-shaped, and the lens can be easily disassembled and installed by cooperating with the base 1, the support seat 2, the movable shaft 3, the lower clamping seat 4, the rotating shaft 5, the upper clamping block 6, the fixed block 7, the locking bolt 8, the electric telescopic rod 9, the support block 10, and the anti-skid pad 11. First, the lens barrel 12 is placed on the lower clamping seat 4, and then the upper clamping block 6 is rotated through the rotating shaft 5 to make the fixed block 7 on one side of the upper clamping block 6 fit with the fixed block 7 on one side of the lower clamping seat 4, and then the locking bolt 8 is used to fix the two groups of fixed blocks 7 in connection, so that the upper clamping block 6 is fixedly connected to the lower clamping seat 4, so that the lens can be installed, and the lens at the upper end of the support block 10 is driven to extend and retract by the electric telescopic rod 9, and at the same time, the movable shaft 3 is driven to rotate, so that the angle of the lens can be adjusted, so that the lens body 20 is easy to adjust to different angles.

[0025] In this embodiment, Figure 4-Figure 6As shown, a lens barrel 12 is detachably mounted on the upper end of the lower clamping seat 4, a connecting thread block 13 is fixedly connected to the upper end of the lens barrel 12, a connecting ring 14 is connected to the upper end of the connecting thread block 13, connecting grooves 15 are provided on both sides of the upper end of the connecting ring 14, a locking rod 16 is movably connected to one side of the connecting groove 15, a threaded rod 17 is threadedly connected to the inner cavity of the connecting thread block 13, a connecting block 18 is fixedly connected to the upper end of the threaded rod 17, an insert block 19 is fixedly mounted on both sides of the connecting block 18, a lens body 20 is fixedly mounted on the upper end of the insert block 19, the lens barrel 12 is located between the lower clamping seat 4 and the upper clamping block 6, and the lower clamping seat 4 and the upper clamping block 6 are arranged in an arc shape, the outer wall of the threaded rod 17 passes through the inner cavity of the connecting ring 14 and the connecting The inner cavity of the threaded block 13 is threadedly connected, one side of the plug block 19 is detachably connected to the inner cavity of the connecting groove 15, and the outer wall of the lower end of the connecting block 18 is detachably connected to the inner cavity of the connecting ring 14. Through the cooperation of the lens barrel 12, the connecting threaded block 13, the connecting ring 14, the connecting groove 15, the locking rod 16, the threaded rod 17, the connecting block 18, and the plug block 19, it is convenient to disassemble and install the lens and the lens barrel 12. First, the threaded rod 17 is threadedly connected between the connecting ring 14 and the connecting threaded block 13, and the plug block 19 is inserted into the connecting groove 15, and then locked by the locking rod 16, so that the lens and the lens barrel 12 are fixedly connected, which is convenient for disassembly and installation, and also improves the stability of installation.

[0026] Working principle:

[0027] The base 1, the support seat 2, the movable shaft 3, the lower clamping seat 4, the rotating shaft 5, the upper clamping block 6, the fixed block 7, the locking bolt 8, the electric telescopic rod 9, the support block 10, and the anti-skid pad 11 are arranged to cooperate with each other, so that the lens can be easily disassembled and installed. First, the lens barrel 12 is placed on the lower clamping seat 4, and then the upper clamping block 6 is rotated through the rotating shaft 5, so that the fixed block 7 on one side of the upper clamping block 6 fits with the fixed block 7 on one side of the lower clamping seat 4, and then the locking bolt 8 is used to fix the two groups of fixed blocks 7, so that the upper clamping block 6 is fixedly connected to the lower clamping seat 4, so that the lens can be installed, and the lens at the upper end of the support block 10 is driven to be telescopic by the electric telescopic rod 9. , and at the same time, the movable shaft 3 is driven to rotate, so that the angle of the lens can be adjusted, so that the lens body 20 is easy to adjust to different angles. Through the cooperation of the lens barrel 12, the connecting thread block 13, the connecting ring 14, the connecting groove 15, the locking rod 16, the threaded rod 17, the connecting block 18, and the plug block 19, it is convenient to disassemble and install the lens and the lens barrel 12. First, the threaded rod 17 is threadedly connected between the connecting ring 14 and the connecting thread block 13, and the plug block 19 is inserted into the connecting groove 15, and then locked by the locking rod 16, so that the lens and the lens barrel 12 are fixedly connected, which is convenient for disassembly and installation, and also improves the stability of installation.

[0028] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A large-surface low-distortion athermal infrared lens, comprising a base (1), characterized in that: A support seat (2) is fixedly mounted on one side of the upper end of the base (1), a movable shaft (3) is fixedly mounted on the upper end of the support seat (2), a lower clamping seat (4) is fixedly mounted on the upper end of the movable shaft (3), a rotating shaft (5) is fixedly mounted on one side of the upper end of the lower clamping seat (4), an upper clamping block (6) is fixedly mounted on the upper end of the rotating shaft (5), and a fixing block (7) is fixedly connected to one side of the upper clamping block (6) and the lower clamping seat (4), and a locking bolt (8) is detachably connected to the upper end of the fixing block (7).

2. The large-surface low-distortion athermal infrared lens according to claim 1, characterized in that: An electric telescopic rod (9) is fixedly mounted on the other side of the upper end of the base (1), a support block (10) is fixedly mounted on the upper end of the electric telescopic rod (9), and an anti-slip pad (11) is fixedly mounted on the upper end of the support block (10).

3. The large-surface low-distortion athermal infrared lens according to claim 2, characterized in that: The upper end of the lower clamping seat (4) is detachably mounted with a lens barrel (12), the upper end of the lens barrel (12) is fixedly connected with a connecting thread block (13), the upper end of the connecting thread block (13) is connected with a connecting ring (14), both sides of the upper end of the connecting ring (14) are provided with connecting grooves (15), one side of the connecting groove (15) is movably connected with a locking rod (16), the inner cavity of the connecting thread block (13) is threadedly connected with a threaded rod (17), the upper end of the threaded rod (17) is fixedly connected with a connecting block (18), both sides of the connecting block (18) are fixedly mounted with plug blocks (19), and the upper end of the plug block (19) is fixedly mounted with a lens body (20).

4. The large-surface low-distortion athermal infrared lens according to claim 3, characterized in that: The lens barrel (12) is located between the lower clamping seat (4) and the upper clamping block (6), and the lower clamping seat (4) and the upper clamping block (6) are arranged in an arc shape.

5. The large-surface-area low-distortion athermal infrared lens according to claim 3, characterized in that: The anti-slip pad (11) is detachably mounted on the lower end of the connecting block (18), and the supporting block (10) and the supporting block (10) are arranged in an arc shape.

6. The large-surface-area low-distortion athermal infrared lens according to claim 3, characterized in that: The outer wall of the threaded rod (17) passes through the inner cavity of the connecting ring (14) and is threadedly connected to the inner cavity of the connecting threaded block (13).

7. The large-surface low-distortion athermal infrared lens according to claim 3, characterized in that: One side of the insert block (19) is detachably connected to the inner cavity of the connecting groove (15), and the outer wall of the lower end of the connecting block (18) is detachably connected to the inner cavity of the connecting ring (14).

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