Infrared confocal lens

Abstract

The utility model discloses an infrared confocal lens, which comprises a shell, a mounting groove arranged at the rear side in the shell, lenses respectively arranged at the front side of the inner cambered surface of the shell, an aperture arranged at the middle part of the inner cambered surface of the shell, and a fixing mechanism, the fixing mechanism comprises guide sliding columns, connecting plates and limiting plates, the guide sliding columns are arranged on the rear sides of the inner arc faces of the mounting grooves correspondingly, and the four transversely adjacent guide sliding columns are slidably connected with sliding holes correspondingly formed in the ends, close to the inner center of the shell, of the connecting plates correspondingly; the infrared confocal lens has the advantages that the infrared confocal lens can be internally supported in different types of cameras or cameras, and accordingly the infrared confocal lens can be supported in the different types of cameras or cameras; the stability of the infrared confocal lens is improved while the compatibility is improved, and the image quality is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lenses, in particular to an infrared confocal lens. Background Art

[0002] An infrared confocal lens is an optical lens specifically designed for infrared imaging systems. It can capture images within the infrared spectrum. This lens is widely used in night vision equipment, ultra-wide-angle video doorbell systems, driver assistance modules, medical imaging, and industrial inspection.

[0003] When using an infrared confocal lens, a hook is usually used to connect it to an external camera or camera. Subsequently, when the infrared confocal lens is working, the infrared confocal lens focuses infrared light through the lens, then controls the amount of light entering the lens through the aperture, and finally adjusts the focus of the imaging system through the focusing lens, thereby maximizing the sharpness and clarity of the image and reducing blur and distortion.

[0004] Although existing infrared confocal lenses can be installed and fixed using hooks during use, not all cameras and lenses use the same hook system, so there may be compatibility issues, resulting in the lens not being able to be installed correctly. In addition, the hooks will deform or corrode after long-term use, thereby reducing the stability of the infrared confocal lens and ultimately affecting the image quality. To this end, we propose an infrared confocal lens. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide an infrared confocal lens, which can be supported inside cameras or cameras of different models, replacing the traditional method of installing and fixing the infrared confocal lens by hooks, solving the problem of image stability and clarity affected by loose deformation of the hooks, improving compatibility while also increasing the stability of the infrared confocal lens, further ensuring the image quality, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an infrared confocal lens, comprising a housing, a mounting groove provided on the rear side of the interior of the housing, lenses provided on the front sides of the inner curved surface of the housing, an aperture provided in the middle of the inner curved surface of the housing, and a fixing mechanism;

[0007] Fixing mechanism: It includes a guide slide, a connecting plate and a limit plate. The guide slides are respectively arranged on the rear side of the inner arc surface of the installation groove. The four laterally adjacent guide slides are respectively slidably connected with the sliding holes corresponding to the end of a connecting plate close to the inner center of the shell. A limit plate is provided in the middle of the end of the connecting plate away from the inner center of the shell. The limit plates are respectively slidably connected with the sliding grooves arranged on the rear side of the outer arc surface of the shell. The infrared confocal lens can be supported inside cameras or cameras of different models, replacing the traditional method of installing and fixing the infrared confocal lens by hooks, solving the problem of image stability and clarity affected by loose deformation of the hooks, improving compatibility while also increasing the stability of the infrared confocal lens, further ensuring image quality.

[0008] Furthermore, the fixing mechanism also includes a rotating cylinder and a top block. The rotating cylinder is rotatably connected to the middle part of the rear wall of the mounting groove. A top block is provided on the rear side of the outer arc surface of the rotating cylinder. The outer arc surface of the top block is respectively in contact with one end of the vertically adjacent connecting plate close to the inner center of the shell, so that the position of the limit plate can be adjusted.

[0009] Furthermore, the fixing mechanism also includes a baffle, which is arranged at one end of the guide slide column close to the inner center of the shell, and can prevent the connection plate from separating from the guide slide column.

[0010] Furthermore, it also includes a mounting rod, a driving gear and a gear. The mounting rod is rotatably connected to the upper side of the front wall of the mounting groove, the driving gear is arranged on the rear side of the outer arc surface of the mounting rod, and the gear is arranged on the front side of the outer arc surface of the rotating cylinder. The driving gear and the gear are meshed and connected, and can drive the rotating cylinder to rotate through the gear.

[0011] Furthermore, it also includes a mounting cover, a worm, a worm wheel and an adjusting knob. The mounting cover is arranged on the upper side of the outer arc surface of the outer shell, the limit plates are all located on the rear side of the mounting cover, the worm is rotatably connected to the inside of the mounting cover, the adjusting knob is arranged at the right end of the worm, and the worm wheel is arranged on the front side of the outer arc surface of the mounting rod. The worm and the worm wheel are meshed and connected, and can drive the drive gear to rotate through the mounting rod.

[0012] Furthermore, it also includes a spring, which is respectively arranged between one end of the baffle close to the inner center of the shell and the end of the connecting plate away from the inner center of the shell. The springs are all sleeved on the outside of the inner side of the guide slide column. The tension generated by the contraction of the spring can drive the limit plate to move and reset through the connecting plate.

[0013] Furthermore, it also includes focusing lenses, which are respectively arranged on the rear side of the inner curved surface of the shell. The focusing lenses can adjust the focus of the imaging system to maximize the sharpness and clarity of the image and reduce blur and distortion.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the infrared confocal lens has the following advantages:

[0015] The connecting plate is pushed by the top block and starts to drive the limit plate to move toward the end away from the inner center of the shell, and finally makes the limit plate contact with the inner arc surface of the interface, thereby supporting the infrared confocal lens inside different models of cameras or cameras, replacing the traditional method of installing and fixing the infrared confocal lens by hooks, solving the problem of image stability and clarity affected by loose deformation of the hooks, improving compatibility while also increasing the stability of the infrared confocal lens, further ensuring image quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front planar structure of the utility model;

[0018] Figure 3 It is a structural diagram of the fixing mechanism of the utility model.

[0019] In the figure: 1 housing, 2 mounting slot, 3 lens, 4 aperture, 5 focus lens, 6 fixing mechanism, 61 rotating cylinder, 62 top block, 63 guide slide, 64 connecting plate, 65 limit plate, 66 baffle, 7 mounting rod, 8 driving gear, 9 gear, 10 mounting cover, 11 worm, 12 worm wheel, 13 adjustment knob, 14 spring. DETAILED DESCRIPTION

[0020] The following will be combined with the 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.

[0021] See also Figure 1-3 This embodiment provides a technical solution: an infrared confocal lens, comprising a housing 1, a mounting groove 2 provided on the rear side of the interior of the housing 1, lenses 3 provided on the front sides of the inner curved surface of the housing 1, an aperture 4 provided in the middle of the inner curved surface of the housing 1, and a fixing mechanism 6;

[0022] The fixing mechanism 6 includes a guide slide 63, a connecting plate 64 and a limit plate 65. The guide slides 63 are respectively arranged on the rear side of the inner arc surface of the mounting groove 2. The four horizontally adjacent guide slides 63 are respectively slidably connected with the sliding holes corresponding to the end of a connecting plate 64 close to the inner center of the shell 1. The middle part of the end of the connecting plate 64 away from the inner center of the shell 1 is provided with a limit plate 65. The limit plates 65 are respectively slidably connected with the sliding grooves provided on the rear side of the outer arc surface of the shell 1. The fixing mechanism 6 also includes a rotating cylinder 61 and a top block 62. The rotating cylinder 61 is rotatably connected to the middle part of the rear wall of the mounting groove 2. The rear side of the outer arc surface of the rotating cylinder 61 is provided with a top block 62. The outer arc surface of the top block 62 is respectively connected to the vertically adjacent connecting plates 64 The end close to the inner center of the shell 1 is in contact, and the fixing mechanism 6 also includes a baffle 66. The baffle 66 is arranged at the end of the guide slide 63 close to the inner center of the shell 1. The connecting plate 64 is pushed by the top block 62 and starts to drive the limit plate 65 to move toward the end away from the inner center of the shell 1, and finally the limit plate 65 is brought into contact with the inner arc surface of the interface, thereby supporting the infrared confocal lens inside cameras or cameras of different models, replacing the traditional method of installing and fixing the infrared confocal lens by a hook, solving the problem of image stability and clarity affected by loose deformation of the hook, improving compatibility while also increasing the stability of the infrared confocal lens, further ensuring image quality.

[0023] Among them, it also includes a mounting rod 7, a driving gear 8 and a gear 9. The mounting rod 7 is rotatably connected to the upper side of the front wall of the mounting groove 2. The driving gear 8 is arranged on the rear side of the outer arc surface of the mounting rod 7. The gear 9 is arranged on the front side of the outer arc surface of the rotating cylinder 61. The driving gear 8 and the gear 9 are meshed and connected. The driving gear 8 drives the rotating cylinder 61 to rotate through the gear 9, and the rotating cylinder 61 drives the top block 62 to rotate. During the rotation of the top block 62, the connecting plate 64 is pushed by the top block 62 and begins to drive the limiting plate 65 to move toward the end away from the inner center of the shell 1.

[0024] Among them: it also includes a mounting cover 10, a worm 11, a worm wheel 12 and an adjusting knob 13. The mounting cover 10 is arranged on the upper side of the outer arc surface of the shell 1, and the limit plates 65 are all located on the rear side of the mounting cover 10. The worm 11 is rotatably connected to the inside of the mounting cover 10. The adjusting knob 13 is arranged at the right end of the worm 11, and the worm wheel 12 is arranged on the front side of the outer arc surface of the mounting rod 7. The worm 11 is meshed with the worm wheel 12. When the operator rotates the adjusting knob 13, the adjusting knob 13 drives the worm 11 to rotate. The worm 11 drives the worm wheel 12 to rotate through the meshing connection, and the worm wheel 12 drives the drive gear 8 to rotate through the mounting rod 7.

[0025] Among them: it also includes a spring 14, which is respectively arranged between the end of the baffle 66 close to the inner center of the shell 1 and the end of the connecting plate 64 away from the inner center of the shell 1. The springs 14 are all sleeved on the outside of the inner side of the guide slide 63. The tension generated by the contraction of the spring 14 can drive the limit plate 65 to move and reset through the connecting plate 64.

[0026] Among them: it also includes a focusing lens 5, which is respectively arranged on the rear side of the inner arc surface of the shell 1. The focusing lens 5 can adjust the focus of the imaging system to maximize the sharpness and clarity of the image and reduce blur and distortion.

[0027] The working principle of the infrared confocal lens provided by the present invention is as follows: before using the infrared confocal lens, the rear end of the housing 1 is docked with the interface provided at the front end of an external camera or a camera head, and then the operator rotates the adjustment knob 13, which drives the worm 11 to rotate. The worm 11 drives the worm gear 12 to rotate through the meshing connection, and the worm gear 12 drives the driving gear 8 to rotate through the mounting rod 7. The driving gear 8 drives the rotating cylinder 61 to rotate through the gear 9, and the rotating cylinder 61 drives the top block 62 to rotate. During the rotation of the top block 62, the connecting plate 64 is pushed by the top block 62 and starts to drive the limit plate 65 moves toward the end away from the inner center of the housing 1, and the spring 14 extends, so that the limit plate 65 extends from the inside of the mounting groove 2, and finally the limit plate 65 contacts the inner arc surface of the interface, thereby supporting the infrared confocal lens inside the external camera or camera. When the infrared confocal lens is working, the infrared confocal lens focuses infrared light through the lens 3, and then controls the amount of light entering the lens through the aperture 4. In infrared imaging, the aperture 4 also helps to control the depth of field and the contrast of the image. Finally, the focus of the imaging system is adjusted through the focusing lens 5 to maximize the sharpness and clarity of the image and reduce blur and distortion.

[0028] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An infrared confocal lens, comprising a housing (1), a mounting groove (2) provided on the rear side of the interior of the housing (1), lenses (3) provided on the front sides of the inner arc surface of the housing (1), and an aperture (4) provided in the middle of the inner arc surface of the housing (1), characterized in that: Also includes a fixing mechanism (6); The fixing mechanism (6) comprises a guide slide (63), a connecting plate (64) and a limit plate (65), wherein the guide slides (63) are respectively arranged on the rear side of the inner arc surface of the mounting groove (2), and four laterally adjacent guide slides (63) are respectively slidably connected to a corresponding sliding hole arranged at one end of a connecting plate (64) close to the inner center of the shell (1), and a limit plate (65) is arranged at the middle part of the end of the connecting plate (64) away from the inner center of the shell (1), and the limit plates (65) are respectively slidably connected to the sliding groove arranged at the rear side of the outer arc surface of the shell (1).

2. The infrared confocal lens according to claim 1, wherein: The fixing mechanism (6) further comprises a rotating cylinder (61) and a top block (62). The rotating cylinder (61) is rotatably connected to the middle portion of the rear wall of the mounting groove (2). The top block (62) is provided on the rear side of the outer arc surface of the rotating cylinder (61). The outer arc surface of the top block (62) is in contact with one end of a vertically adjacent connecting plate (64) close to the inner center of the housing (1).

3. The infrared confocal lens according to claim 1, wherein: The fixing mechanism (6) further comprises a baffle (66), and the baffle (66) is arranged at one end of the guide slide column (63) close to the inner center of the housing (1).

4. The infrared confocal lens according to claim 2, wherein: The utility model further comprises a mounting rod (7), a driving gear (8) and a gear (9), wherein the mounting rod (7) is rotatably connected to the upper side of the front wall of the mounting groove (2), the driving gear (8) is arranged on the rear side of the outer arc surface of the mounting rod (7), and the gear (9) is arranged on the front side of the outer arc surface of the rotating cylinder (61), and the driving gear (8) and the gear (9) are meshed and connected.

5. The infrared confocal lens according to claim 4, characterized in that: The invention also includes a mounting cover (10), a worm (11), a worm wheel (12) and an adjusting knob (13), wherein the mounting cover (10) is arranged on the upper side of the outer arc surface of the housing (1), the limiting plates (65) are all located on the rear side of the mounting cover (10), the worm (11) is rotatably connected to the inside of the mounting cover (10), the adjusting knob (13) is arranged at the right end of the worm (11), the worm wheel (12) is arranged on the front side of the outer arc surface of the mounting rod (7), and the worm (11) and the worm wheel (12) are meshed and connected.

6. The infrared confocal lens according to claim 3, wherein: The invention also includes a spring (14), which is respectively arranged between an end of the baffle (66) close to the inner center of the shell (1) and an end of the connecting plate (64) away from the inner center of the shell (1), and the spring (14) is sleeved on the outside of the inner side of the guide slide (63).

7. The infrared confocal lens according to claim 1, wherein: It also includes focusing lenses (5), which are respectively arranged on the rear side of the inner arc surface of the housing (1).

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