A lens and an infrared thermal imager

Abstract

The utility model relates to a lens and infrared thermal imaging appearance, including lens main part, optical lens and laser ranging module, lens main part has first accommodating cavity, optical lens is located in first accommodating cavity, the edge of optical lens is equipped with at least one cutout, and laser ranging module includes laser ranging main part and control assembly, laser ranging main part sets up on the cutout of optical lens, control assembly part or all is equipped with in the cutout outside of optical lens, control assembly and laser ranging main part electric connection. The utility model makes control assembly and laser ranging main part split body installation, can effectively reduce the size of laser ranging module, reduces the influence of laser ranging module to lens module optical performance, and also can reduce the influence of circuit heating to lens module imaging effect because of the installation of control assembly far away from lens module, thereby greatly promotes the image quality of infrared thermal imaging appearance product.

Description

Technical Field

[0001] This utility model relates to the field of infrared thermal imaging technology, specifically to a lens and an infrared thermal imager. Background Technology

[0002] Infrared thermal imagers are becoming increasingly accepted by consumers, and the use of laser ranging functions in infrared thermal imaging equipment is becoming more and more common. There are various arrangements of laser ranging modules in infrared thermal imaging equipment. Currently, most of the laser ranging modules and lenses are arranged separately, while a few are arranged with the laser ranging module embedded in the lens.

[0003] Embedding the laser ranging module within the lens ensures a harmonious and aesthetically pleasing appearance for the infrared thermal imaging device, resulting in a simple and compact product structure. However, this method requires the laser ranging module to occupy a portion of the lens's optical space.

[0004] Laser ranging modules typically consist of a laser, a laser transceiver, a laser processing circuit, and structural fasteners. Currently, these components combined often result in a relatively large overall size. Embedding a lens within the laser ranging module significantly weakens the external energy information received by the lens, thus affecting the image quality of infrared thermal imaging equipment.

[0005] Therefore, how to reduce the impact of the laser ranging module on the optical performance of the lens and improve the image quality of the infrared thermal imager is a problem that those skilled in the art need to consider and solve. Utility Model Content

[0006] Based on the above description, this utility model provides a lens and an infrared thermal imager to solve the problem of the overall size of the laser ranging module being too large.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A lens, comprising: The lens body has a first accommodating cavity; An optical lens is installed in the first accommodating cavity, and at least one edge of the optical lens is provided with a cutout, the cutout of the optical lens and the inner wall of the first accommodating cavity forming a receiving groove; The laser ranging module is partially or entirely installed in the receiving slot.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the cut is configured as a straight cut or an arc cut.

[0010] Furthermore, the two ends of the cut are symmetrically arranged; The symmetrical center line of the cut passes through the center of the optical lens.

[0011] Furthermore, it also includes mounting brackets; The laser ranging module is mounted in the receiving slot via the mounting bracket.

[0012] Furthermore, the laser ranging module includes a laser emitting source and a laser receiving end, which are mounted on the fixed frame.

[0013] Furthermore, the laser ranging module also includes: A control component is electrically connected to both the laser emitting source and the laser receiving end, and the control component is partially or entirely mounted on the mounting frame.

[0014] Furthermore, the control component includes: A first circuit board is mounted on the mounting bracket, and the first circuit board is electrically connected to both the laser emitting source and the laser receiving end; A second circuit board is installed on the outside of the mounting bracket, and the first circuit board and the second circuit board are electrically connected by at least one connecting line.

[0015] Furthermore, the second circuit board is mounted at the rear end of the optical lens.

[0016] Furthermore, the fixing frame includes a fixing plate and a fixing block, the fixing plate is disposed on the fixing block, the first outer side and the second outer side are both disposed on the fixing plate, and the first window and the second window are both disposed on the fixing block.

[0017] An infrared thermal imager, comprising the aforementioned lens.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: This embodiment provides a lens and an infrared thermal imager. The laser ranging module includes a laser ranging body and a control component. The laser ranging body is set on the notch of the optical lens, and the control component is partially or entirely located outside the notch of the optical lens. The control component is electrically connected to the laser ranging body, so that the control component is partially or entirely installed separately from the laser ranging body. This can effectively reduce the size of the laser ranging module and reduce the impact of the laser ranging module on optical performance. At the same time, since the control component is partially or entirely away from the laser ranging body, the impact of circuit heat generation on imaging effect can also be reduced, thereby greatly improving the image quality of the infrared thermal imager product. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the lens structure of this utility model; Figure 2 This is an exploded view of the lens of this utility model; Figure 3 This is a schematic diagram of the structure of the laser ranging module of this utility model fixed to the mounting frame; Figure 4 This is a first sectional view of the present invention; Figure 5 This is the first sectional view of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Lens body; 11. First accommodating cavity; 2. Optical lens; 21. Cutout; 22. Receiving groove; 23. Housing; 3. Laser ranging module; 31. Laser ranging body; 311. Fixing bracket; 3111. First window; 3112. Second window; 312. Laser emitting light source; 313. Laser receiving end; 32. Connecting wire; 33. Control component; 331. Second circuit board; 332. First circuit board; 4. First fixing sleeve; 41. First through hole; 5. Infrared control unit; 6. Second fixing sleeve; 61. Second through hole; 7. Third fixing sleeve; 8. Sealing ring; 9. Pressure ring. Detailed Implementation

[0021] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0023] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0024] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0025] Example 1 In related technologies, the laser ranging module 3 is usually embedded in the lens body 1. This method will significantly reduce the external energy information received by the lens body 1, which will affect the image effect of the infrared thermal imaging device.

[0026] To solve this problem, this embodiment provides a lens, such as... Figure 1 and Figure 2 As shown, the device includes a lens body 1, an optical lens 2, and a laser ranging module 3. The lens body 1 has a first accommodating cavity 11, and the optical lens 2 is installed in the first accommodating cavity 11. At least one edge of the optical lens 2 is provided with a cutout 21. The laser ranging module 3 includes a laser ranging body 31 and a control component 33. The laser ranging body 31 is disposed on the cutout 21 of the optical lens 2, and the control component 33 is partially or entirely disposed outside the cutout 21 of the optical lens 2 and is electrically connected to the laser ranging body 31.

[0027] This embodiment provides a lens, and the laser ranging module 3 includes a laser ranging body 31 and a control component 33. The laser ranging body 31 is set on the cutout 21 of the optical lens 2, and the control component 33 is partially or entirely located outside the cutout 21 of the optical lens 2. The control component 33 is electrically connected to the laser ranging body 31, so that the control component 33 is partially or entirely installed separately from the laser ranging body 31. This can effectively reduce the size of the laser ranging module 3 and reduce the impact of the laser ranging module 3 on the optical performance. At the same time, since the control component 33 is partially or entirely away from the laser ranging body 31, the impact of circuit heat generation on the imaging effect can also be reduced, thereby greatly improving the image quality of the infrared thermal imager product.

[0028] In some implementations of this embodiment, such as Figure 3 As shown, the laser ranging body 31 includes a fixed frame 311, a laser emitting source 312, and a laser receiving end 313. The fixed frame 311 is installed on the cutout 21 of the optical lens 2. The laser emitting source 312 and the laser receiving end 313 are installed on the fixed frame 311. The control component 33 is partially or entirely located on the outside of the fixed frame 311 and is electrically connected to the laser emitting source 312 and the laser receiving end 313 through at least one connecting line 32.

[0029] Thus, the laser emission source 312 and the laser receiver 313 are integrated in the mounting bracket 311, and the control component 33 is partially or entirely located on the outside of the mounting bracket 311, so that the control component 33 and the laser ranging body 31 are installed separately.

[0030] In this embodiment, as Figure 3 As shown, the mounting bracket 311 includes a first window 3111 and a second window 3112. The laser emitting light source 312 faces the first window 3111 to emit laser light through the first window 3111, and the laser receiving end 313 faces the second window 3112 to receive the reflected laser light through the second window 3112.

[0031] In some implementations of this embodiment, such as Figure 4 and Figure 5 As shown, the lens provided in this embodiment also includes a first fixing sleeve 4, which is fixed on the inner wall of the first accommodating cavity 11. The optical lens 2 is fixed on the inner side of the first fixing sleeve 4. The first fixing sleeve 4 is provided with a first through hole 41. The laser ranging body 31 and the control component 33 are electrically connected through at least one connecting line 32 passing through the first through hole 41.

[0032] The first fixing sleeve 4 and the inner wall of the first accommodating cavity 11 can be fixed by snap-fit, bolt, or adhesive. This embodiment does not limit this.

[0033] In some embodiments of this example, the cutout 21 of the optical lens 2 and the inner wall of the first accommodating cavity 11 form an accommodating groove 22, and the laser ranging body 31 is installed in the accommodating groove 22.

[0034] Specifically, such as Figure 4 and Figure 5 As shown, it also includes a housing 23, which is fixed to the inner side of the first fixed sleeve 4. The optical lens 2 is fixed in the housing 23, and the cut 21 of the optical lens 2 and the inner wall of the housing 23 form a receiving groove 22. The laser ranging body 31 is fixed in the receiving groove 22. Specifically, the fixing frame 311 is fixed in the receiving groove 22.

[0035] In this embodiment, the optical lens 2 and the outer shell 23 can be fixed by snap-fitting, adhesive bonding, or by pressing and fixing with a pressure ring 9. This embodiment does not limit this.

[0036] In this embodiment, the inner walls of the fixing frame 311 and the outer shell 23 can be fixed by snap-fit, bolt, adhesive, or by pressing with the pressure ring 9. This embodiment does not limit this.

[0037] Specifically, the optical lens 2 and the mounting bracket 311 are pressed into the housing 23 by the sealing ring 8 and the pressure ring 9.

[0038] In some embodiments of this example, when the control component 33 is entirely located outside the cutout 21 of the optical lens 2, the control component 33 includes a second circuit board 331. The second circuit board 331 is used to receive, convert, process, trigger laser emission, and calculate distance from the reflected laser optical signal. When the control component 33 is partially located outside the cutout 21 of the optical lens 2, the control component 33 includes: The first circuit board 332 is mounted on the mounting bracket 311. The first circuit board 332 is electrically connected to the laser emitting source 312 and the laser receiving end 313 through at least one connecting line 32. The first circuit board 331 is used to receive, convert and process the optical signal of the reflected laser. The second circuit board 331 is disposed on the outside of the fixing frame 311. The first circuit board 332 and the second circuit board 331 are electrically connected through at least one connecting line 32. The second circuit board 332 is used to trigger laser emission and distance calculation, etc.

[0039] In some embodiments of this example, a lens provided in this embodiment, such as... Figure 4 and Figure 5As shown, it also includes an infrared control unit 5, which is used to receive and process infrared signals. The control component 33 is located on the rear side of the infrared control unit 5 or integrated with the infrared control unit 5. Specifically, the second circuit board 332 is located on the rear side of the infrared control unit 5 or integrated with the infrared control unit 5.

[0040] In this embodiment, when the number of optical lenses 2 is 1, the infrared control unit 5 is located in the first accommodating cavity 11 and is located on the rear side of the optical lens 2.

[0041] When the number of optical lenses 2 is greater than 1, several optical lenses 2 are arranged axially in the first accommodating cavity 11 at a certain distance. The infrared control unit 5 is located in the first accommodating cavity 11 and is located on the rear side of the last optical lens 2. The cutout 21 is located on the first optical lens 2.

[0042] Specifically, it also includes a third fixing sleeve 7, which is fixed in the outer casing 23, and other optical lenses 2 other than the first optical lens 2 are fixed inside the third fixing sleeve 7.

[0043] The third fixing sleeve 7 and the outer shell 23 can be fixed by snap-fit, bolt, or adhesive, and this embodiment does not limit this.

[0044] In some embodiments of this example, the lens body further includes a second fixing sleeve 6, the infrared control unit 5 is fixed inside the second fixing sleeve 6, the second fixing sleeve 6 is provided with a second through hole 61, and the laser ranging body 31 and the control component 33 are electrically connected through a connecting line 32 passing through the second through hole 61.

[0045] In some embodiments of this example, the infrared control unit 5 includes a third circuit board, an infrared receiving subunit, and an infrared processing subunit. The third circuit board is fixed inside the second fixing sleeve 6. The infrared receiving subunit and the infrared processing subunit are both disposed on the third circuit board. The infrared receiving subunit is disposed on one side of the third circuit board and faces the optical lens 2 to receive the reflected infrared signal.

[0046] In some embodiments of this example, in one case, the second circuit board 331 is located behind the first circuit board to ensure that the control component 33 does not affect the original infrared aiming function of the lens; in another case, the third circuit board and the second circuit board 331 are an integral circuit board, and the control component 33 and the infrared control unit 5 are integrated together to ensure that the control component 33 does not affect the original infrared aiming function of the lens.

[0047] Example 2 This embodiment provides an infrared thermal imager, including the lens described above.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lens characterized by comprising: include: The lens body has a first accommodating cavity; An optical lens is installed in the first accommodating cavity, and at least one edge of the optical lens is provided with a cutout; A laser ranging module includes a laser ranging body and a control component. The laser ranging body is disposed on the cutout of the optical lens, and the control component is partially or entirely disposed on the outside of the cutout of the optical lens and is electrically connected to the laser ranging body.

2. The lens according to claim 1, characterized in that: The laser ranging body includes a fixed frame, a laser emitting source, and a laser receiving end. The fixed frame is installed on the cutout of the optical lens, and the laser emitting source and the laser receiving end are installed on the fixed frame.

3. The lens of claim 1, wherein Also includes: A first fixed sleeve is fixed to the inner wall of a first accommodating cavity. The optical lens is fixed to the inner side of the first fixed sleeve. The first fixed sleeve is provided with a first through hole. The laser ranging body and the control component are electrically connected through at least one connecting line passing through the first through hole.

4. The lens according to claim 1, characterized in that: The cutout of the optical lens and the inner wall of the first accommodating cavity form a receiving groove, and the laser ranging body is installed in the receiving groove.

5. The lens according to claim 2, characterized in that: The control component includes: A first circuit board is mounted on the mounting bracket, and the first circuit board is electrically connected to both the laser emitting source and the laser receiving end; A second circuit board is disposed on the outside of the fixing frame, and the first circuit board and the second circuit board are electrically connected by at least one connecting line.

6. The lens according to claim 1, characterized in that, Also includes: An infrared control unit is installed in the first accommodating cavity, and the control component is located on the rear side of the infrared control unit or integrated with the infrared control unit.

7. The lens according to claim 6, characterized in that: When the number of optical lenses is 1, the infrared control unit is located on the rear side of the optical lens; When the number of optical lenses is greater than 1, several optical lenses are arranged axially in the first accommodating cavity at a certain distance in sequence, the infrared control unit is located on the rear side of the last optical lens, and the cut is located on the first optical lens.

8. The lens according to claim 7, characterized in that, Also includes: The second fixed sleeve is fixed on the inner wall of the first accommodating cavity. The infrared control unit is fixed on the inner side of the second fixed sleeve. The second fixed sleeve is provided with a second through hole. The laser ranging body and the control component are electrically connected through at least one connecting line passing through the second through hole.

9. The lens according to claim 8, characterized in that: The infrared control unit includes a third circuit board, an infrared receiving subunit, and an infrared processing subunit. The third circuit board is fixed to the inside of the second fixing sleeve. The infrared receiving subunit and the infrared processing subunit are both located on the third circuit board, and the infrared receiving subunit is located on one side of the third circuit board and faces the optical lens.

10. An infrared thermal imager, characterized in that: Includes the lens as described in any one of claims 1-9.

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