A lens fixing device
By designing a split-type lens fixing device, the problems of complex structure, heavy weight, poor thermal stability and insufficient interchangeability of existing lens fixing devices are solved. This enables rapid assembly and disassembly of lenses, reduces processing costs, improves thermal stability, and meets the testing requirements of various lenses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN KELIYE TECHNOLOGY CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-16
AI Technical Summary
Existing lens mounting devices are complex in structure, have high manufacturing costs, are heavy, have poor thermal stability, and lack interchangeability, thus failing to meet the testing requirements of various lenses.
It adopts a split structure design, including a first fixing structure and a second fixing structure, which are used to fix different lenses respectively. Depending on the size of the lens, they can be used individually or in combination, simplifying the assembly process.
It enables rapid assembly and disassembly of lenses, reduces processing costs, improves thermal stability, enhances interchangeability, and meets the testing requirements of various lenses.
Smart Images
Figure CN224366241U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lens testing technology, and more specifically, to a lens fixing device. Background Technology
[0002] In the design process of finished lenses, the mounting device is an indispensable part. A good mounting device is simple, clear, and allows for quick assembly and disassembly. Existing lens mounting devices have the following drawbacks: First, they are structurally complex. Some lens mounting devices use relatively complex structures to ensure clamping angles or flatness of the device. These complex designs lead to high processing costs, large material usage, and heavy weight. Second, they have poor thermal stability compensation. Existing mounting devices mostly use a single metal material and do not fully consider the impact of the coefficient of thermal expansion on the stability of the optical axis. Overheating or undercooling can cause the optical axis to shift. Third, they lack interchangeability. There is no unified standard, and they do not meet the needs of multiple parts for assembly and adjustment. Utility Model Content
[0003] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a lens fixing device with simple structure, which can fix a variety of lenses and realize different testing functions.
[0004] To achieve the above objectives, this utility model provides a lens fixing device, including a first fixing structure; the first fixing structure has a mounting plate and a side wall disposed on a first side of the mounting plate, the side wall being connected to the edge of the mounting plate in an L-shaped structure; the side wall is a bridge structure, including a first end, a second end, and a crossbeam connecting the first end and the second end, the first end and the second end being respectively connected to the mounting plate; a first mounting hole is provided on the crossbeam, passing through the crossbeam in a first direction, and a second mounting hole is provided on the second side of the mounting plate opposite to the first side, passing through the mounting plate in the first direction, the first mounting hole and the second mounting hole are used to fix the lens; the first direction is a direction approximately perpendicular to the surface of the mounting plate.
[0005] In some embodiments, a first mounting groove and a second mounting groove are respectively provided on the third side and the fourth side directly opposite the third side of the mounting plate; the first mounting groove and the second mounting groove pass through the mounting plate along a first direction and extend a certain length along a second direction; the second direction is a direction that is approximately parallel to the surface of the mounting plate.
[0006] In some embodiments, one end of the first mounting slot and the second mounting slot is open, forming an open structure.
[0007] In some embodiments, the first side of the mounting plate is between the third and fourth sides, and the second side of the mounting plate is also between the third and fourth sides; the third side of the mounting plate is between the first and second sides, and the fourth side of the mounting plate is also between the first and second sides.
[0008] In some implementations, the mounting plate has a perforated structure.
[0009] In some implementations, the perforated structure is a single unit and is connected to the space between the first end and the second end.
[0010] In some embodiments, the lens fixing device further includes a second fixing structure; the crossbeam is also provided with a third mounting hole passing through the crossbeam in a first direction, the third mounting hole being used to fix the second fixing structure to the first fixing structure; the second fixing structure is a plate-like structure, and the plate-like structure is provided with a plurality of fourth mounting holes passing through the plate-like structure in a third direction, the fourth mounting holes being used to fix the lens; the third direction is a direction that is approximately perpendicular to the surface of the plate-like structure.
[0011] In some embodiments, a circular hole is provided on the plate-like structure, and a fourth mounting hole is distributed around the circular hole; the circular hole is used to accommodate the tail of the lens, allowing the tail of the lens to pass through the circular hole.
[0012] In some embodiments, the side of the plate-like structure is provided with a third mounting groove extending in a fourth direction; the third mounting groove is used to mate with a third mounting hole to fix the second fixing structure to the first fixing structure; the fourth direction is a direction that is generally parallel to the surface of the plate-like structure.
[0013] In some implementations, during operation, only the first fixing structure is used to fix the lens, and then the first fixing structure is installed on the test platform to complete the test; or a combination of the first fixing structure and the second fixing structure is used, with the second fixing structure fixed to the first fixing structure, the lens fixed to the second fixing structure, and then the first fixing structure installed on the test platform to complete the test.
[0014] Overall, the above-described technical solution conceived by this utility model has the following beneficial effects compared with the prior art: it adopts a split structure design, including a first fixing structure and a second fixing structure, and distinguishes the functions of the first fixing structure and the second fixing structure to meet the testing requirements of different lenses; depending on the size of the lens to be fixed, only the first fixing structure is used to fix the lens, or the first fixing structure and the second fixing structure are used in combination to fix the lens, which is simple to assemble and easy to operate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the lens fixing device according to an embodiment of the present invention;
[0016] Figure 2 It is Figure 1 A schematic diagram of the fixing device for fixing the lens;
[0017] Figure 3 This is a schematic diagram of the lens fixing device according to another embodiment of the present invention;
[0018] Figure 4 yes Figure 3 A schematic diagram of the second fixing structure in the lens fixing device shown;
[0019] Figure 5 It is Figure 3 The diagram shows a lens fixing device for fixing the lens. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0021] like Figure 1 As shown, the lens fixing device of this utility model embodiment includes a first fixing structure 100. The first fixing structure 100 has a mounting plate 101 and a side wall 103 disposed on a first side of the mounting plate 101. The side wall 103 is connected to the edge of the mounting plate 101 in an L-shaped structure and is approximately perpendicular to the mounting plate 101. The side wall 103 is a bridge structure, including a first end 105, a second end 107, and a crossbeam 109 connecting the first end 105 and the second end 107. The first end 105 and the second end 107 are respectively connected to the mounting plate 101. A first mounting hole 111 is provided on the crossbeam 109, passing through the crossbeam in a first direction. A second mounting hole 113 is provided on the second side of the mounting plate 101 opposite to the first side, passing through the mounting plate in the first direction. The first mounting hole 111 is used to fix the tail of the lens, and the second mounting hole 113 is used to fix the head of the lens. The first direction is a direction that is approximately perpendicular to the surface of the mounting plate 101.
[0022] In some embodiments, there are two or more first mounting holes 111 and two or more second mounting holes 113. The first mounting holes 111 and the second mounting holes 113 have suitable lengths, allowing screws to pass through one side of the first mounting hole 111 to secure the lens on the other side, and allowing screws to pass through one side of the second mounting hole 113 to secure the lens on the other side. In some embodiments, an M2*10 socket head cap screw is used to secure the lens via the first mounting holes 111 and the second mounting holes 113.
[0023] Furthermore, a first mounting groove 115 and a second mounting groove 117 are respectively provided on the third side and the fourth side directly opposite the third side of the mounting plate 101. The first mounting groove 115 and the second mounting groove 117 pass through the mounting plate 101 along a first direction and extend a certain length along a second direction, which helps to move the first fixing structure 100 on the test table according to the test requirements. The second direction is a direction that is approximately parallel to the surface of the mounting plate. One end of the first mounting groove 115 and the second mounting groove 117 is open, which is an open structure. This allows the screws to be loosened only when the first fixing structure 100 is installed on the test table or removed from the test table, without having to unscrew all the screws. This facilitates batch debugging and improves debugging efficiency.
[0024] In some embodiments, the first fixing structure 100 is mounted onto the three-dimensional adjustable plane using M6 screws via the first mounting slot 115 and the second mounting slot 117, enabling related target testing or hot / cold testing; or the first fixing structure 100 is mounted onto the plane via the first mounting slot 115 and the second mounting slot 117, enabling other needs with lower precision requirements such as assembly, adjustment, and gluing.
[0025] In some embodiments, the first side of the mounting plate 101 is between the third and fourth sides, and the second side of the mounting plate 101 is also between the third and fourth sides; the third side of the mounting plate 101 is between the first and second sides, and the fourth side of the mounting plate 101 is also between the first and second sides.
[0026] Furthermore, the mounting plate 101 is provided with a hollow structure 119. The area of the hollow structure 119 to the overall area of the mounting plate 101 should be reasonably controlled. On the one hand, it should help reduce the overall weight of the first fixing structure 100, and on the other hand, it should ensure that the first fixing structure 100 has sufficient mechanical strength.
[0027] In some embodiments, the hollow structure 119 is an integral part and is connected to the space between the first end 105 and the second end 107 of the bridge structure. This design is not only simple in structure and easy to mass-produce, but also provides operational convenience for fixing the lens through the first mounting hole 111.
[0028] like Figure 2 As shown, the lens 201 is fixed by the first fixing structure 100. The tail of the lens 201 is fixed by the first mounting hole of the first fixing structure 100, the head of the lens 201 is fixed by the second mounting hole of the first fixing structure 100, and the first fixing structure 100 with the lens 201 fixed is installed on the test bench by the first mounting groove and the second mounting groove of the first fixing structure 100 to complete the test.
[0029] like Figure 3As shown, another embodiment of the lens fixing device of this utility model includes a first fixing structure 100 and a second fixing structure 301. Figure 1 As shown, the crossbeam 109 of the first fixing structure 100 is further provided with a third mounting hole 121 passing through the crossbeam in a first direction. The third mounting hole 121 is used to fix the second fixing structure 301 to the first fixing structure. In some embodiments, there are two or more third mounting holes 121, and the third mounting holes 121 have a suitable length so that screws can pass through the third mounting holes 121 from one side to fix the second fixing structure 301 on the other side of the third mounting holes 121.
[0030] like Figure 4 As shown, the second fixing structure 301 is a plate-like structure with a circular hole 401. Around the circular hole 401, multiple fourth mounting holes 403 extending through the plate-like structure in a third direction are provided. A third mounting groove (not shown) extending in a fourth direction is provided on the side of the plate-like structure for engaging with the third mounting hole 121 of the first fixing structure 100, thereby fixing the second fixing structure 301 to the first fixing structure 100. The third direction is approximately perpendicular to the surface of the plate-like structure, and the fourth direction is approximately parallel to the surface of the plate-like structure. The circular hole 401 is used to accommodate the lens tail, and the fourth mounting holes 403 are used to fix the lens tail. In some embodiments, there are two or more third mounting grooves.
[0031] like Figure 5 As shown, the second fixing structure 301 is fixed to the first fixing structure 100. The tail of the lens 501 passes through the circular hole of the second fixing structure 301. The tail of the lens 501 is fixed using multiple fourth mounting holes of the second fixing structure 301. The lens 501 does not contact the first fixing structure 100. The first fixing structure 100, on which the lens 501 and the second fixing structure 301 are fixed, is mounted onto the test bench using the first mounting slot and the second mounting slot of the first fixing structure 100 to complete the test. Since the lens 501 does not contact the first fixing structure 100, the lens 501 can rotate freely to complete the autofocus test. In addition, the circular hole on the second fixing structure 301 reduces the weight of the second fixing structure 301 and facilitates the installation of a corresponding camera module at the tail of the lens, helping the focusing system obtain a clear image.
[0032] Furthermore, depending on actual needs, the lens can be fixed using either the first fixing structure alone or a combination of the first and second fixing structures. In some embodiments, for larger lenses, only the first fixing structure is used, simultaneously fixing both the head and tail of the lens to the first fixing structure, facilitating dispensing, installation, and partial adjustment. For smaller lenses, a combination of the first and second fixing structures is used, fixing the second fixing structure to the first fixing structure, and then fixing the tail of the lens to the second fixing structure, ensuring the lens does not contact the first fixing structure, facilitating lens testing of the zoom system and target testing.
[0033] This utility model adopts a split structure design, including a first fixing structure and a second fixing structure. The functions of the first fixing structure and the second fixing structure are distinguished to meet the testing requirements of different lenses. Depending on the size of the lens to be fixed, only the first fixing structure is used to fix the lens, or the first fixing structure and the second fixing structure are used in combination to fix the lens. The assembly is simple and the operation is convenient.
[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0036] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more (two or more) executable instructions for implementing a particular logical function or process. Furthermore, the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functionality involved.
[0037] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus or device (such as a computer-based system, a processor-included system or other system that can fetch and execute instructions from, an instruction execution system, apparatus or device).
[0038] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. All or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware, the program being stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiments.
[0039] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. This storage medium can be a read-only memory, a disk, or an optical disk, etc.
[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A lens fixing device, characterized in that, The device includes a first fixing structure; the first fixing structure has a mounting plate and a side wall disposed on a first side of the mounting plate, the side wall being connected to the edge of the mounting plate in an L-shaped structure; the side wall is a bridge structure, including a first end, a second end, and a crossbeam connecting the first end and the second end, the first end and the second end being respectively connected to the mounting plate; the crossbeam is provided with a first mounting hole passing through the crossbeam in a first direction, and the second side of the mounting plate opposite to the first side is provided with a second mounting hole passing through the mounting plate in the first direction, the first mounting hole and the second mounting hole being used to fix a lens; the first direction is a direction that is approximately perpendicular to the surface of the mounting plate.
2. The lens fixing device as described in claim 1, characterized in that, The mounting plate has a first mounting groove and a second mounting groove on its third side and the fourth side opposite to the third side, respectively; the first mounting groove and the second mounting groove pass through the mounting plate along a first direction and extend a certain length along a second direction; the second direction is a direction that is approximately parallel to the surface of the mounting plate.
3. The lens fixing device as described in claim 2, characterized in that, Both the first mounting slot and the second mounting slot have an opening at one end, forming an open structure.
4. The lens fixing device as described in claim 2, characterized in that, The first side of the mounting plate is between the third and fourth sides, and the second side of the mounting plate is also between the third and fourth sides; the third side of the mounting plate is between the first and second sides, and the fourth side of the mounting plate is also between the first and second sides.
5. The lens fixing device as described in any one of claims 1 to 4, characterized in that, The mounting plate has a hollow structure.
6. The lens fixing device as described in claim 5, characterized in that, The hollow structure is a whole and is connected to the space between the first end and the second end.
7. The lens fixing device as described in any one of claims 1 to 4, characterized in that, It also includes a second fixing structure; the crossbeam is further provided with a third mounting hole passing through the crossbeam along a first direction, the third mounting hole being used to fix the second fixing structure to the first fixing structure; the second fixing structure is a plate-shaped structure, the plate-shaped structure is provided with a plurality of fourth mounting holes passing through the plate-shaped structure along a third direction, the fourth mounting holes being used to fix the lens; the third direction is a direction that is approximately perpendicular to the surface of the plate-shaped structure.
8. The lens fixing device as described in claim 7, characterized in that, The plate-like structure is provided with a circular hole, and the fourth mounting hole is distributed around the circular hole; the circular hole is used to accommodate the tail of the lens, so that the tail of the lens passes through the circular hole.
9. The lens fixing device as described in claim 7, characterized in that, The plate-like structure has a third mounting groove extending along a fourth direction on its side; the third mounting groove is used to cooperate with the third mounting hole to fix the second fixing structure to the first fixing structure; the fourth direction is a direction that is approximately parallel to the surface of the plate-like structure.
10. The lens fixing device as described in claim 7, characterized in that, During operation, the lens is fixed using only the first fixing structure, and then the first fixing structure is installed on the test platform to complete the test; or a combination of the first fixing structure and the second fixing structure is used, with the second fixing structure fixed to the first fixing structure, the lens fixed to the second fixing structure, and then the first fixing structure installed on the test platform to complete the test.