Infrared lens with diaphragm adjusting device

Abstract

The utility model relates to the technical field of infrared lenses, and discloses an infrared lens with a diaphragm adjusting device, which comprises a shell, the outer surface of the shell is movably connected with a fixing plate, the top of the fixing plate is fixedly connected with a supporting seat, a motor is fixedly arranged in the supporting seat, and the diaphragm adjusting device is arranged in the shell. The other end of an output shaft of the motor is fixedly sleeved with a rotating shaft, the other end of the rotating shaft is fixedly sleeved with a gear, and the outer surface of the gear is connected with a gear ring in an engaged mode. By arranging the rotating shaft, the gear, the gear ring, the connecting plate and the diaphragm and starting the motor, the rotating shaft drives the gear to rotate, and the gear ring drives the connecting sleeve to rotate on the outer surface of the shell, so that the connecting plate rotates, and finally the diaphragm rotates; therefore, the device can adapt to different temperature measurement scenes by changing the diameter of the gear light through hole, and the application range and the flexibility of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared lenses, and more specifically, the utility model relates to an infrared lens with a diaphragm adjusting device. Background Art

[0002] An infrared lens is a special optical lens used to capture images in the infrared spectral range. Its main function is to convert infrared radiation into visible images so that the human eye can see this usually imperceptible heat energy. The optical design of the infrared lens eliminates the focal plane shift between visible light and infrared light, enabling light from the visible light to the infrared light region to be imaged on the same focal plane, thus ensuring clear images. In addition, the infrared lens also adopts a special multi-layer coating technology to increase the transmittance of infrared light, enabling cameras using infrared lenses to achieve longer distances and better effects when monitoring at night or in low-light conditions.

[0003] Existing infrared lenses are provided with a diameter adjusting component and a variable diaphragm, and the diameter of the variable diaphragm is adjusted by the diameter adjusting component to correspond to different temperature measurement scenarios, so that the same lens can be applied to different temperature measurement scenarios of normal temperature and high temperature, saving the cumbersome process of replacing the lens. Although it has a continuous zoom function, there are problems such as complex structure, heavy weight, large volume, great influence by temperature, and poor regional applicability, so it needs to be improved. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an infrared lens with a diaphragm adjusting device, which has the advantage of facilitating the adjustment of the diameter of the light passing hole.

[0005] To achieve the above object, the utility model provides the following technical solution: an infrared lens with a diaphragm adjusting device, including a housing, the outer surface of the housing is movably connected with a fixing plate, the top of the fixing plate is fixedly connected with a support seat, a motor is fixedly installed inside the support seat, the other end of the output shaft of the motor is fixedly sleeved with a rotating shaft, the other end of the rotating shaft is fixedly sleeved with a gear, the outer surface of the gear is meshed with a toothed ring, the bottom of the right side of the toothed ring is fixedly installed with a connecting plate, a diaphragm is movably sleeved inside the connecting plate, and the outer surface of the diaphragm is movably connected with the inner surface of the housing.

[0006] As a preferred technical solution of the utility model, a connecting sleeve is fixedly sleeved inside the toothed ring, and the outer surface of the connecting sleeve is movably sleeved with the outer surface of the housing.

[0007] As a preferred technical solution of the utility model, a first bolt is movably connected to the inside of both sides of the fixing plate, and the other end of the first bolt penetrates through the fixing plate and extends into the housing and is threadedly sleeved with the inside of the housing.

[0008] As a preferred technical solution of the present utility model, mounting plates are movably connected to both sides of the bottom of the outer surface of the housing. A limit switch is fixedly connected to the bottom of the mounting plate. A second bolt is movably connected inside the mounting plate, and the other end of the second bolt is threadedly sleeved with the inside of the housing.

[0009] As a preferred technical solution of the present utility model, a first lens is fixedly connected to the left side of the inner cavity of the housing. A first sealing ring is fixedly connected to the left side of the housing, and the right side of the first sealing ring is movably connected to the left side of the first lens.

[0010] As a preferred technical solution of the present utility model, a second lens is movably connected to the right side of the inner cavity of the housing. A second sealing ring is movably connected to the left side of the second lens, and the second sealing ring is fixedly installed in the inner cavity of the housing.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By providing a rotating shaft, a gear, a gear ring, a connecting plate and a diaphragm, when the motor is started, the rotating shaft will drive the gear to rotate, and the gear ring will drive the connecting sleeve to start rotating on the outer surface of the housing, so that the connecting plate rotates, and finally the diaphragm rotates, thereby realizing adapting to different temperature measurement scenarios by changing the diameter of the light passing hole of the gear, improving the application range and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic cross-sectional structure diagram of the side of the housing of the present utility model;

[0015] Figure 3 is a schematic cross-sectional structure diagram of the front of the present utility model;

[0016] Figure 4 is a schematic cross-sectional structure diagram of the front of the second lens of the present utility model;

[0017] Figure 5 is a schematic cross-sectional structure diagram of the front of the first lens of the present utility model.

[0018] In the figure: 1. Housing; 2. Fixed plate; 3. Support seat; 4. Motor; 5. Rotating shaft; 6. Gear; 7. Gear ring; 8. Connecting plate; 9. Diaphragm; 10. Connecting sleeve; 11. First sealing ring; 12. First bolt; 13. Mounting plate; 14. Limit switch; 15. Second bolt; 16. First lens; 17. Second lens; 18. Second sealing ring; 19. Third lens. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] As Figures 1 to 5 shown, the present invention provides an infrared lens with a diaphragm adjusting device, which includes a housing 1. A fixing plate 2 is movably connected to the outer surface of the housing 1. A support seat 3 is fixedly connected to the top of the fixing plate 2. A motor 4 is fixedly installed inside the support seat 3. The other end of the output shaft of the motor 4 is fixedly sleeved with a rotating shaft 5. The other end of the rotating shaft 5 is fixedly sleeved with a gear 6. The outer surface of the gear 6 is meshed with a toothed ring 7. A connecting plate 8 is fixedly installed at the bottom on the right side of the toothed ring 7. A diaphragm 9 is movably sleeved inside the connecting plate 8. The outer surface of the diaphragm 9 is movably connected to the inner surface of the housing 1.

[0021] When the motor 4 starts to run, it will cause the rotating shaft 5 to drive the gear 6 to rotate, and cause the toothed ring 7 to start rotating, thereby driving the connecting plate 8 to rotate, and finally causing the diaphragm 9 to rotate inside the housing 1, thereby realizing the adjustment of the size of the light passing hole of the diaphragm 9.

[0022] Among them, a connecting sleeve 10 is fixedly sleeved inside the toothed ring 7. The outer surface of the connecting sleeve 10 is movably sleeved with the outer surface of the housing 1.

[0023] When the toothed ring 7 rotates, it will drive the connecting sleeve 10 to rotate along the outer surface of the housing 1.

[0024] Among them, a first bolt 12 is movably connected to the inside of both sides of the fixing plate 2. The other end of the first bolt 12 penetrates through the fixing plate 2 and extends into the inside of the housing 1 and is threadedly sleeved with the inside of the housing 1.

[0025] When the operator rotates the first bolt 12 and completely disengages the first bolt 12 from the inside of the housing 1, the fixing effect on the fixing plate 2 will be released.

[0026] Among them, mounting plates 13 are movably connected to both sides at the bottom of the outer surface of the housing 1. A limit switch 14 is fixedly connected to the bottom of the mounting plate 13. A second bolt 15 is movably connected to the inside of the mounting plate 13. The other end of the second bolt 15 is threadedly sleeved with the inside of the housing 1.

[0027] When the diaphragm 9 rotates and contacts the limit switch 14, the diaphragm 9 will stop.

[0028] Among them, a first lens 16 is fixedly connected to the left side of the inner cavity of the housing 1, and a first sealing ring 11 is fixedly connected to the left side of the housing 1. The right side of the first sealing ring 11 is movably connected to the left side of the first lens 16.

[0029] Due to the design of the first sealing ring 11, the fixation of the first lens 16 is realized.

[0030] Among them, a second lens 17 is movably connected to the right side of the inner cavity of the housing 1. The left side of the second lens 17 is movably connected to a second sealing ring 18, and the second sealing ring 18 is fixedly installed in the inner cavity of the housing 1.

[0031] Due to the design of the second sealing ring 18, the fixation of the second lens 17 is realized.

[0032] The working principle and usage process of the present utility model are as follows:

[0033] First, when different temperature measurement scenarios need to be switched, the motor 4 is started at this time, which will cause the rotating shaft 5 to drive the gear 6 to rotate, and the gear ring 7 to drive the connecting sleeve 10 to start rotating on the outer surface of the housing 1, thereby causing the connecting plate 8 to rotate, and finally causing the diaphragm 9 to rotate. Thus, by changing the diameter of the light passing hole of the gear 6, different temperature measurement scenarios are adapted, and then the infrared lens can better adapt to different temperature measurement scenarios, reduce the aberration of the optical system, improve the imaging quality, and increase the application range of the device.

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

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An infrared lens with an aperture adjustment device, comprising a housing (1), characterized in that: The outer surface of the housing (1) is movably connected to a fixing plate (2), the top of the fixing plate (2) is fixedly connected to a support seat (3), a motor (4) is fixedly installed inside the support seat (3), the other end of the output shaft of the motor (4) is fixedly sleeved with a rotating shaft (5), the other end of the rotating shaft (5) is fixedly sleeved with a gear (6), the outer surface of the gear (6) is meshingly connected with a gear ring (7), a connecting plate (8) is fixedly installed at the bottom of the right side of the gear ring (7), an iris (9) is movably sleeved inside the connecting plate (8), and the outer surface of the iris (9) is movably connected to the inner surface of the housing (1).

2. The infrared lens with an aperture adjustment device according to claim 1, characterized in that: A connecting sleeve (10) is fixedly sleeved inside the gear ring (7), and an outer surface of the connecting sleeve (10) is movably sleeved with an outer surface of the outer shell (1).

3. The infrared lens with an aperture adjustment device according to claim 1, characterized in that: The interior of both sides of the fixing plate (2) is movably connected with a No. 1 bolt (12), and the other end of the No. 1 bolt (12) passes through the fixing plate (2) and extends to the interior of the outer shell (1) and is sleeved with the internal thread of the outer shell (1).

4. The infrared lens with an aperture adjustment device according to claim 1, characterized in that: Both sides of the bottom of the outer surface of the shell (1) are movably connected with mounting plates (13), the bottom of the mounting plate (13) is fixedly connected with a limit switch (14), and the inside of the mounting plate (13) is movably connected with a second bolt (15), and the other end of the second bolt (15) is sleeved with the internal thread of the shell (1).

5. The infrared lens with an aperture adjustment device according to claim 1, characterized in that: A first lens (16) is fixedly connected to the left side of the inner cavity of the shell (1), a first sealing ring (11) is fixedly connected to the left side of the shell (1), and the right side of the first sealing ring (11) is movably connected to the left side of the first lens (16).

6. The infrared lens with an aperture adjustment device according to claim 1, characterized in that: A second lens (17) is movably connected to the right side of the inner cavity of the shell (1), and a second sealing ring (18) is movably connected to the left side of the second lens (17), and the second sealing ring (18) is fixedly installed in the inner cavity of the shell (1).

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