A lens and an infrared thermal imager
By setting linear cuts at the edge of the optical lens and using a fixture to house the laser ranging module, the problems of energy loss and reliability of optical lenses in infrared thermal imagers are solved, achieving lens stability and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN CONO TECH CO LTD
- Filing Date
- 2025-10-15
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, when integrating a laser ranging module into an infrared thermal imager, the cutting of grooves in the optical lenses leads to significant energy loss, reduced reliability, high processing costs, and complex processing issues.
A linear cut is made at the edge of the optical lens to form a receiving groove to accommodate the laser ranging module, avoiding the formation of a groove. The laser ranging module is stably installed by a mounting bracket to ensure that the integrated function is not affected.
This reduces energy loss in optical lenses, improves their reliability and stability, and reduces processing costs and complexity.
Smart Images
Figure CN224553556U_ABST
Abstract
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 imaging equipment is generally used for observation and target search at night. During use, target distance information plays a crucial role in the user's judgment. Therefore, infrared thermal imaging equipment will be equipped with a laser ranging module for target distance measurement.
[0003] In related technologies, a groove is cut into the optical lens of an infrared lens, and then a laser ranging module is integrated into the groove, making the optical lens and the laser ranging module a whole. However, infrared thermal imaging equipment has high requirements for image quality, and the application environment varies. Some application environments are quite harsh, so there are certain requirements for reliability. If a groove is cut into the optical lens to integrate the laser ranging module, it will result in a large energy loss of the optical lens. In addition, the cut optical lens is generally irregular in shape, with corners and sharp edges in some areas, which may pose certain reliability risks. Furthermore, the processing cost is high and the processing technology is complex. Utility Model Content
[0004] Based on the above description, this utility model provides a lens and an infrared thermal imager that integrates a laser ranging module to solve the problem of irregular shape of optical lenses, improve the reliability of optical lenses, and reduce energy loss of optical lenses.
[0005] 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 disposed in the first accommodating cavity, and at least one edge of the optical lens is provided with a linear cut, the linear cut of the optical lens and the inner wall of the first accommodating cavity forming a receiving groove; The laser ranging module is partially or wholly housed in the receiving slot.
[0006] Based on the above technical solution, the present invention can be further improved as follows.
[0007] Furthermore, the linear cut is configured as a straight cut or an arc cut.
[0008] Furthermore, the two ends of the linear cut are symmetrically arranged; The linear cut is axially symmetric, and the center line of the linear cut passes through the center of the optical lens.
[0009] Furthermore, it also includes a mounting bracket, which is detachably connected to the receiving slot, and the laser ranging module is partially or entirely disposed on the mounting bracket.
[0010] Furthermore, it also includes a fixing frame, which is fixed to the inner wall of the first accommodating cavity, and the laser ranging module is partially or completely detachably connected to the fixing frame.
[0011] Furthermore, the laser ranging module includes a laser emitting source and a laser receiving end, which are mounted on the fixed frame.
[0012] 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 disposed on the mounting frame.
[0013] Furthermore, the control component includes: A first circuit board is disposed on the fixed frame, and the first circuit board is electrically connected to both the laser emitting source and the laser receiving end; Furthermore, the control component also includes: A second circuit board is disposed on the bracket or on the outside of the bracket, and the first circuit board and the second circuit board are electrically connected by at least one connecting line.
[0014] An infrared thermal imager: Including the aforementioned shots.
[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: This embodiment proposes a lens and an infrared thermal imager. A linear cut is set on the edge of the optical lens to avoid forming a groove and reduce the energy loss of the optical lens. In addition, the linear cut increases reliability. The linear cut of the optical lens and the inner wall of the first accommodating cavity form an accommodating groove, so that the laser ranging module is partially or completely accommodated in the groove, ensuring the functionality of the integrated laser ranging module. Attached Figure Description
[0016] Figure 1 This is a front view of a lens according to the present invention; Figure 2 This is a schematic diagram of the structure of the optical lens of this utility model; Figure 3 This is a schematic diagram of a lens without a laser ranging module according to the present invention; Figure 4 This is a schematic diagram of the structure of a lens according to the present invention; Figure 5This is a schematic diagram of the structure of the laser ranging module and the mounting bracket of this utility model. Figure 6 A schematic diagram illustrating the structure for fixing the mounting bracket and lens body of this utility model; Figure 7 This is a schematic diagram of the structure of the laser ranging module of this utility model; Figure 8 This is a schematic diagram of the structure for fixing the laser ranging module, the mounting bracket, and the lens body of this utility model.
[0017] The attached diagram lists the components represented by each number as follows: 1. Lens body; 11. First accommodating cavity; 12. Accommodating slot; 2. Optical lens; 21. Linear cut; 22. Third outer surface; 3. Laser ranging module; 31. Laser emitting light source; 32. Laser receiving end; 33. Control component; 331. First circuit board; 332. Second circuit board; 34. Housing; 341. Second accommodating cavity; 35. Connecting wire; 4. Fixing bracket; 41. Fixing plate; 411. First outer surface; 412. Second outer surface; 42. Fixing block; 421. First window; 422. Second window. Detailed Implementation
[0018] 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.
[0019] 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 in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.
[0020] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "over," 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 "under" or "below" of other elements or features will be oriented "over" of other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 9 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.
[0021] Example 1 In related technologies, a groove is usually cut into the optical lens 2, and the laser ranging module 3 is integrated into the groove, so that the laser ranging module 3 and the optical lens 2 form a whole. However, the groove cut into the optical lens 2 results in a large energy loss in the optical lens 2, and there are corners and sharp edges in some areas of the groove, which poses certain reliability risks and has a high processing cost.
[0022] To solve this problem, such as Figures 1-3 As shown, this embodiment provides a lens, including 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 disposed in the first accommodating cavity 11. The edge of the optical lens 2 is provided with a linear cut 21. The linear cut 21 is smooth and without corners. The linear cut 21 and the inner wall of the first accommodating cavity 11 form a receiving groove 12. The laser ranging module 3 is partially or entirely disposed in the receiving groove 12.
[0023] This embodiment proposes a lens with a linear cutout 21 on the edge of the optical lens 2 to avoid forming a groove and reduce energy loss of the optical lens 2. In addition, the linear cutout 21 increases reliability. The linear cutout 21 of the optical lens 2 and the inner wall of the first accommodating cavity 11 form an accommodating groove 12, so that the laser ranging module 3 is partially or completely accommodated in the accommodating groove 12, ensuring the function of the integrated laser ranging module 3.
[0024] In this embodiment, as Figure 3 As shown, the linear cut 21 is either a straight cut or an arc cut, in order to reduce the cutting area of the optical lens 2, thereby improving lens stability and reducing costs while ensuring the energy of the optical lens 2.
[0025] In this embodiment, as Figure 3As shown, in order to further ensure the stability of the lens, the linear cut 21 is axially symmetric, and the center line of the linear cut 21 passes through the center of the optical lens 2.
[0026] In this embodiment, when the linear cut 21 is a straight cut, the optical lens 2 is directly cut flat to form a straight cut.
[0027] In this embodiment, the optical lens 2 is an infrared lens or the like, but this embodiment does not limit it.
[0028] In this embodiment, as Figure 4 As shown, in order to fix the laser ranging module 3, a mounting bracket 4 is also included. The laser ranging module 3 is set in the receiving groove 12 through the mounting bracket 4. The mounting bracket 4 is detachably connected to the lens body 1, fixedly connected, or integrally formed.
[0029] Specifically, such as Figure 4 As shown, the lens body 1 has a cylindrical structure. The mounting bracket 4 includes a first outer side 411 and a second outer side 412. The optical lens 2 includes a linear cutout 21 and a third outer side 22. The shape of the first outer side 411 is adapted to the inner wall of a portion of the receiving groove 12. The shape of the second outer side 412 is adapted to the linear cutout 21. The shape of the third outer side 22 is adapted to the inner wall of another portion of the receiving groove 12, so that the mounting bracket 4 and the optical lens 2 can be stably set in the lens body 1, ensuring the stability of the mounting bracket 4 and the optical lens 2. The laser ranging module 3 is partially or entirely set in the mounting bracket 4. The laser ranging module 3 is detachably connected to the mounting bracket 4, fixedly connected, or integrally formed.
[0030] In this embodiment, as Figure 4 As shown, in order to reduce the linear cut 21 cut by the optical lens 2, which would result in a large energy loss in the optical lens 2, it is only necessary to ensure that the part of the laser ranging module 3 facing the object being measured is set in the fixed frame 4. The laser ranging module 3 includes a laser emitting source 31 and a laser receiving end 32. When performing laser ranging, the laser emitting source 31 and the laser receiving end 32 need to face the object being measured. Therefore, the laser emitting source 31 and the laser receiving end 32 are set in the fixed frame 4.
[0031] Example 2 This embodiment provides a lens, such as Figure 5As shown, the laser ranging module 3 is integrated into the mounting bracket 4. The mounting bracket 4 is detachably connected to the receiving slot 12 of the lens body 1, integrating the mounting bracket 4 and the laser ranging module 3 into one part. That is, the mounting bracket 4 becomes the housing 34 of the laser ranging module 3. Part or all of the laser ranging module 3 is set in the mounting bracket 4, saving some space. The mounting bracket 4 includes a first window 421 and a second window 422. The laser emitting light source 31 and the laser receiving end 32 are both set in the mounting bracket 4. The laser emitting light source 31 faces the first window 421, and the laser receiving end 32 faces the second window 422, so that the laser emitted by the laser emitting light source 31 can be emitted through the first window 421, and the reflected laser can be received by the laser receiving end 32 through the second window 422.
[0032] In this embodiment, as Figure 5 As shown, in order to control the laser emitting source 31 and the laser receiving end 32, the laser ranging module 3 also includes: The control component 33 is electrically connected to both the laser emitting source 31 and the laser receiving end 32. The control component 33 is partially or entirely mounted on the mounting frame 4. The control component 33 includes a first circuit board 331 and a second circuit board 332. The first circuit board 331 is used to receive, convert, and perform preliminary processing of the optical signal of the reflected laser. The second circuit board 332 is used to trigger laser emission and perform distance calculation. The first circuit board 331 and the second circuit board 332 transmit signals through a connecting line 35, which is a ribbon cable.
[0033] In this embodiment, as Figure 5 As shown, in order to reduce the linear cut 21 cut by the optical lens 2, the first circuit board 331 is set on the fixing frame 4 or on the outside of the fixing frame 4. The first circuit board 331 is electrically connected to both the laser emitting light source 31 and the laser receiving end 32. The second circuit board 332 is set on the fixing frame 4 or on the outside of the fixing frame 4 and is electrically connected to the first circuit board 331.
[0034] Example 3 This embodiment provides a lens, such as Figure 6 and Figure 7 As shown, the mounting bracket 4 is fixed to the inner wall of the first accommodating cavity 11, and the laser ranging module 3 is partially or completely detachably connected to the mounting bracket 4.
[0035] The laser ranging module 3 also includes a housing 34, which is detachably connected to the mounting bracket 4.
[0036] In this embodiment, as Figure 6 and Figure 7As shown, the mounting bracket 4 includes a first window 421 and a second window 422. The housing 34 has a second accommodating cavity 341, which is used to accommodate the laser emitting light source 31 and the laser receiving end 32. The laser emitting light source 31 faces the first window 421, and the laser receiving end 32 faces the second window 422, so that the laser emitted by the laser emitting light source 31 can be emitted through the first window 421, and the reflected laser can be received by the laser receiving end 32 through the second window 422.
[0037] In this embodiment, in order to control the laser emitting source 31 and the laser receiving end 32, such as... Figure 7 As shown, the laser ranging module 3 also includes: The control component 33 is electrically connected to both the laser emitting source 31 and the laser receiving end 32. The control component 33 is partially or entirely disposed on the housing 34. The control component 33 includes a first circuit board 331 and a second circuit board 332. The first circuit board 331 is used to receive, convert, and process the optical signal of the reflected laser, while the second circuit board 332 is used to trigger laser emission and calculate distance.
[0038] In this embodiment, as Figure 7 As shown, in order to reduce the linear cut 21 cut by the optical lens 2, the first circuit board 331 is disposed on the housing 34 or on the outside of the housing 34. The first circuit board 331 is electrically connected to both the laser emitting source 31 and the laser receiving end 32. The second circuit board 332 is disposed on the housing 34 or on the outside of the housing 34 and is electrically connected to the first circuit board 331.
[0039] Example 4 This embodiment provides a lens, such as Figure 8 As shown, the fixing frame 4 is fixed to the inner wall of the first accommodating cavity 11. In this embodiment, the fixing frame 4 includes a first window 421 and a second window 422. The laser emitting light source 31 and the laser receiving end 32 are both disposed in the fixing frame 4, with the laser emitting light source 31 facing the first window 421 and the laser receiving end 32 facing the second window 422, so that the laser emitted by the laser emitting light source 31 can be emitted through the first window 421, and the reflected laser can be received by the laser receiving end 32 through the second window 422.
[0040] In this embodiment, as Figure 8 As shown, the first circuit board 331 is disposed on the fixed frame 4 or on the outside of the fixed frame 4. The first circuit board 331 is electrically connected to both the laser emitting light source 31 and the laser receiving end 32. The second circuit board 332 is disposed on the fixed frame 4 or on the outside of the fixed frame 4 and is electrically connected to the first circuit board 331.
[0041] Specifically, the fixing frame 4 includes a fixing plate 41 and a fixing block 42. The fixing plate 41 is located outside the fixing block 42. The fixing block 42 has a third accommodating cavity inside. The first outer side 411 and the second outer side 412 are both located on the fixing plate 41. The first window 421 and the second window 422 are both located on the fixing block 42. The laser emitting light source 31 and the laser receiving end 32 are both located inside the third accommodating cavity. The first circuit board 331 is located on the fixing frame 4 or located outside the fixing frame 4. The first circuit board 331 is electrically connected to both the laser emitting light source 31 and the laser receiving end 32. The second circuit board 332 is located outside the fixing frame 4 and is electrically connected to the first circuit board 331.
[0042] Example 5 This embodiment provides an infrared thermal imager, including the lens described above.
[0043] 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.
[0044] 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 in that, include: The lens body has a first accommodating cavity; An optical lens is disposed in the first accommodating cavity, and at least one edge of the optical lens is provided with a linear cut, the linear cut 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 housed in the receiving slot.
2. The lens according to claim 1, characterized in that: The linear cut is set as a straight cut or an arc cut.
3. The lens according to claim 1, characterized in that: The two ends of the linear cut are symmetrically arranged; The linear cut is axially symmetric, and the center line of the linear cut passes through the center of the optical lens.
4. The lens according to claim 1, characterized in that: It also includes a mounting bracket, which is detachably connected to the receiving slot, and the laser ranging module is partially or entirely disposed on the mounting bracket.
5. The lens according to claim 1, characterized in that: It also includes a mounting bracket, which is fixed to the inner wall of the first accommodating cavity, and the laser ranging module is partially or completely detachably connected to the mounting bracket.
6. The lens according to any one of claims 4-5, characterized in that: The laser ranging module includes a laser emitting source and a laser receiving end, which are mounted on the fixed frame.
7. The lens according to claim 6, characterized in that: 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 disposed on the mounting frame.
8. The lens according to claim 7, characterized in that: The control component includes: A first circuit board is disposed on the mounting bracket, and the first circuit board is electrically connected to both the laser emitting source and the laser receiving end.
9. The lens according to claim 8, characterized in that: The control component also includes: A second circuit board is disposed on the bracket or on the outside of the bracket, and the first circuit board and the second circuit board are electrically connected by at least one connecting line.
10. An infrared thermal imager, characterized in that: Includes the lens as described in any one of claims 1-9.