Core adjusting lens
By using a combination of magnetic components and adjustment parts in the alignment lens, the initial fixation of the lens group and the optical axis adjustment are achieved, which solves the problem of low efficiency of manual adjustment and improves the coaxiality consistency and adjustment accuracy between lens groups.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-24
AI Technical Summary
Manual adjustment of existing lenses is inefficient and inconsistent, relies on operator experience, and makes it difficult to guarantee coaxiality between lens groups.
Multiple sets of magnetic components are used to connect the lens group, and the radial movement and optical axis offset adjustment of the lens group are realized through the adjustment component. The combination of magnetic attraction and mechanical locking dual fixing methods ensures stability and accuracy.
It improves the efficiency of lens alignment, reduces manual alignment errors, avoids precision damage caused by mechanical rigid friction, and achieves high-precision lens coaxiality adjustment.
Smart Images
Figure CN224035684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lens technology, and in particular to a core-aligning lens. Background Technology
[0002] In recent years, with the rapid development of modern science and technology such as electronic science and the Internet, the application fields of optical lenses have become increasingly extensive. From the initial products such as film cameras, microscopes, telescopes, and simple medical instruments, they have continued to penetrate into many optical imaging fields closely related to human life, such as digital cameras, laptops, mobile phones, security monitoring cameras, vehicle-mounted visual systems, smart homes, and aerial drones.
[0003] The coaxiality between different lens groups has a significant impact on image quality. Therefore, to ensure coaxiality between different lens groups, alignment is required. Currently, in lenses requiring alignment, manual alignment is more common due to the high cost and complex maintenance of automatic adjustment. However, manual alignment relies on operator experience, resulting in low efficiency and poor consistency.
[0004] Based on the above situation, there is an urgent need to design a core-aligning lens to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to propose a core-aligning lens that solves the technical problems of low efficiency and poor consistency in the prior art due to manual adjustment.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] This utility model provides a core-aligning lens, including a first group of lenses and a second group of lenses nested together along the axial direction. One end of the first group of lenses extends into the second group of lenses, and a stop edge is provided circumferentially at the other end of the first group of lenses. The stop edge can abut against the end face of the second group of lenses.
[0008] The two lens groups and the stop edge are magnetically connected by multiple sets of magnetic components.
[0009] The circumferential sidewall of the two lens groups is provided with multiple sets of adjustment members. The adjustment members can move radially along the two lens groups and can abut against the circumferential sidewall of the first lens group.
[0010] The first lens group and the second lens group of this aligning lens are magnetically connected by multiple sets of magnetic assemblies, achieving initial fixation of the first and second lens groups, reducing manual alignment errors and improving efficiency. Multiple adjustment components are installed on the circumferential sidewalls of the second lens group. These components can move radially along the second lens group and abut against the circumferential sidewalls of the first lens group, thereby adjusting the optical axis offset. During adjustment, the magnetic attraction of the magnetic assemblies provides flexible fixation, allowing for minute displacements between the first and second lens groups, avoiding precision damage caused by rigid mechanical friction. This aligning lens achieves dual fixation of the first and second lens groups through the magnetic attraction of the magnetic assemblies and the abutment of the adjustment components against the circumferential sidewalls of the first lens group, ensuring stability and improving the accuracy of alignment.
[0011] As a preferred embodiment of the aforementioned alignment lens, the magnetic attraction assembly includes a first magnetic attraction member disposed on the stop edge and a second magnetic attraction member disposed on the end face of the two lens groups. The first magnetic attraction member on the stop edge and the second magnetic attraction member on the two lens groups are respectively disposed in a one-to-one correspondence, and the first magnetic attraction member can be magnetically attracted to the corresponding second magnetic attraction member.
[0012] The magnetic attraction assembly includes a first magnetic attraction component and a second magnetic attraction component. The first magnetic attraction component and the corresponding second magnetic attraction component are magnetically attracted to each other to magnetically connect a group of lenses and a group of lenses.
[0013] As a preferred embodiment of the aforementioned alignment lens, the stop edge is provided with a plurality of mounting holes, and a first magnetic suction element is inserted into each of the mounting holes;
[0014] The end face of the two-group lens assembly is provided with multiple mounting slots, and the mounting holes on the stop edge are provided one-to-one with the mounting slots on the two-group lens assembly. Each mounting slot is provided with a second magnetic attractor.
[0015] The mounting holes and mounting slots facilitate the installation of the first and second magnetic components; moreover, the mounting holes and mounting slots have a simple structure and are easy to manufacture.
[0016] As a preferred embodiment of the aforementioned alignment lens, grooves are provided on opposite sides of the end of the mounting hole away from the second lens group, and the side of the groove facing the mounting hole is connected to the mounting hole.
[0017] The groove allows a hand or tool to grip the first magnetic component, making it easier to grip the first magnetic component.
[0018] As a preferred embodiment of the above-mentioned alignment lens, the end face of the first magnetic member away from the second lens group is located between the bottom of the groove and the end face of the stop edge away from the second lens group.
[0019] Alternatively, the end face of the first magnetic member away from the second lens group is flush with the end face of the stop edge away from the second lens group.
[0020] The above-mentioned configuration allows the first magnetic component to be gripped via the groove, facilitating the placement and removal of the first magnetic component.
[0021] As a preferred embodiment of the aforementioned alignment lens, multiple sets of the magnetic attraction components are arranged at equal intervals along the circumference of the group of lenses.
[0022] Multiple sets of magnetic attraction components are evenly spaced along the circumference of a first group of lenses, which makes the magnetic attraction force between the first group of lenses and the second group of lenses more uniformly distributed. This avoids the situation where the first group of lenses and the second group of lenses will be relatively displaced due to uneven distribution of magnetic attraction components when adjusted by the adjustment device.
[0023] As a preferred embodiment of the aforementioned adjusting lens, multiple sets of the adjusting elements are arranged at equal intervals along the circumference of the two lens groups.
[0024] Multiple sets of adjustment elements are arranged at equal intervals along the circumference of the two groups of lenses, so that they can be adjusted from the circumference of the first group of lenses, making it easier to calibrate the optical axis.
[0025] As a preferred embodiment of the aforementioned adjusting lens, the two lens groups are provided with three sets of adjustment members circumferentially, and the three sets of adjustment members are equally spaced along the circumference of the two lens groups.
[0026] The three sets of adjustment components are equally spaced along the circumference of the two groups of lenses, allowing for centering of the first group of lenses from three positions; moreover, the three sets of adjustment components can better reduce the complexity of the operation.
[0027] As a preferred embodiment of the aforementioned aligning lens, the circumferential sidewalls of the two lens groups are provided with a plurality of aligning screw holes at equal intervals. The adjusting component is an adjusting screw threaded into the aligning screw hole. The adjusting screw can move axially along the aligning screw hole to abut against the sidewall of the first lens group.
[0028] The adjusting screw is threaded into the self-aligning screw hole. By turning the adjusting screw, the degree of support of a group of lenses can be adjusted, thereby realizing the self-aligning operation. The adjusting component has a simple structure and is easy to manufacture.
[0029] As a preferred embodiment of the aforementioned adjusting lens, the end of the adjusting screw that does not abut against the group of lenses is provided with an operating groove.
[0030] The end of the adjusting screw that does not abut against a group of lenses has an operating groove. A tool is inserted into the operating groove to turn the adjusting screw, thereby adjusting the position of the adjusting screw and thus adjusting the degree of abutment against a group of lenses.
[0031] The beneficial effects of this utility model are:
[0032] The alignment lens proposed in this invention features a first-group lens and a second-group lens connected by multiple sets of magnetic assemblies. This initial fixation of the first and second-group lens sets reduces manual alignment errors and improves efficiency. Multiple adjustment components are installed on the circumferential sidewalls of the second-group lens sets. These components can move radially along the second-group lens sets and abut against the circumferential sidewalls of the first-group lens set, thereby adjusting the optical axis offset. During adjustment, the magnetic attraction of the magnetic assemblies provides flexible fixation, allowing for minute displacements between the first and second-group lens sets and avoiding precision damage caused by rigid mechanical friction. This alignment lens achieves dual fixation of the first and second-group lens sets through the magnetic attraction of the magnetic assemblies and the abutment of the adjustment components against the circumferential sidewalls of the first-group lens set, ensuring stability and improving alignment accuracy. Attached Figure Description
[0033] Figure 1 This is a schematic diagram of the first structure of the alignment lens provided by this utility model;
[0034] Figure 2 This is a schematic diagram of the second structure of the alignment lens provided by this utility model;
[0035] Figure 3 This is a schematic diagram of the third structure of the alignment lens provided by this utility model;
[0036] Figure 4 yes Figure 3 A sectional view along line AA.
[0037] Figure 5 yes Figure 4 Enlarged diagram of point B in the middle.
[0038] In the picture:
[0039] 1. A group of lenses; 11. Stop edge; 111. Mounting hole; 112. Groove;
[0040] 2. Two lens groups; 21. Mounting slot; 22. Alignment screw hole;
[0041] 3. Magnetic suction assembly; 31. First magnetic suction component; 32. Second magnetic suction component;
[0042] 4. Adjustment components. Detailed Implementation
[0043] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0044] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0046] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0047] like Figures 1-4As shown, this embodiment provides a focusing lens, including a first group of lenses 1 and a second group of lenses 2 nested together along the axial direction. One end of the first group of lenses 1 extends into the second group of lenses 2, and a stop edge 11 is provided circumferentially at the other end of the first group of lenses 1. The stop edge 11 can abut against the end face of the second group of lenses 2. The second group of lenses 2 and the stop edge 11 are magnetically connected by multiple sets of magnetic attraction components 3. Multiple sets of adjustment members 4 are provided on the circumferential sidewall of the second group of lenses 2. The adjustment members 4 can move radially along the second group of lenses 2 and can abut against the circumferential sidewall of the first group of lenses 1.
[0048] The stop edge 11 of the first lens group 1 and the second lens group 2 are magnetically connected by multiple sets of magnetic traction components 3, achieving initial fixation of the first lens group 1 and the second lens group 2, reducing manual alignment errors and improving efficiency. Multiple sets of adjustment components 4 are provided on the circumferential sidewall of the second lens group 2. The adjustment components 4 can move radially along the second lens group 2 and can abut against the circumferential sidewall of the first lens group 1, thereby adjusting the eccentricity of the optical axes of the first lens group 1 and the second lens group 2. During the adjustment process, the magnetic attraction of the magnetic traction components 3 provides flexible fixation. (When adjusting the adjusting component 4, a small relative displacement can be generated between the magnetically connected first lens group 1 and the second lens group 2 when the adjusting force is large, that is, the magnetic component 3 is considered to provide flexible fixation), allowing a small displacement between the first lens group 1 and the second lens group 2, avoiding precision damage caused by mechanical rigid friction; the self-aligning lens achieves double fixation of the first lens group 1 and the second lens group 2 through the magnetic attraction of the magnetic component 3 and the abutment between the adjusting component 4 and the circumferential sidewall of the first lens group 1, ensuring stability and improving the self-aligning accuracy.
[0049] like Figure 1 As shown, in addition to the first group of lens groups 1 and the second group of lens groups 2, the focusing lens also includes a focusing assembly, a lens hood, and other structures. However, the specific structure, installation method, and connection relationship between the first group of lens groups 1 and the second group of lens groups 2 and the above structures are all existing technologies and will not be described in detail here.
[0050] Specifically, a group of lenses 1 includes a group of lens barrels and a group of lenses fixedly disposed within the group of lens barrels, and a group of lenses 2 includes a group of lens barrels and a group of lenses fixedly disposed within the group of lens barrels.
[0051] The first group of lenses includes at least one lens, and the second group of lenses includes at least one lens. Both the first group and the second group of lenses may each include one lens or multiple lenses. The lenses may be plastic lenses or glass lenses. In a specific embodiment, the first group of lenses 1 and the second group of lenses 2 may be glass lens groups, plastic lens groups, or glass-plastic hybrid lens groups, respectively.
[0052] Optionally, such as Figure 2 As shown, multiple sets of magnetic attraction components 3 are arranged at equal intervals along the circumference of a first group of lens groups 1, so that the magnetic attraction force of the first group of lens groups 1 and the second group of lens groups 2 is distributed more evenly, avoiding the situation where the first group of lens groups 1 and the second group of lens groups 2 will have relative displacement due to uneven distribution of magnetic attraction components 3 when adjusted by adjusting component 4.
[0053] Specifically, such as Figure 5 As shown, the magnetic attraction component 3 includes a first magnetic attraction member 31 disposed on the stop edge 11 and a second magnetic attraction member 32 disposed on the end face of the second lens group 2. In this embodiment, four first magnetic attraction members 31 are disposed on the stop edge 11. The four first magnetic attraction members 31 are equally spaced along the circumference of the first lens group 1. The first magnetic attraction members 31 on the stop edge 11 are correspondingly disposed one-to-one with the second magnetic attraction members 32 on the second lens group 2. That is, four second magnetic attraction members 32 are also disposed. The four second magnetic attraction members 32 are equally spaced along the circumference of the first lens group 1. The first magnetic attraction member 31 can be magnetically attracted to the corresponding second magnetic attraction member 32 to magnetically connect the first lens group 1 and the second lens group 2.
[0054] In other embodiments, the number of the first magnetic attractor 31 and the second magnetic attractor 32 is not limited to four; they can also be three, five or more. No specific limitation is made here.
[0055] To facilitate the installation of the first magnetic chuck 31 and the second magnetic chuck 32, the stop edge 11 is provided with multiple mounting holes 111. In this embodiment, four mounting holes 111 are provided, and the four mounting holes 111 are equally spaced along the circumference of a group of lenses 1. Each mounting hole 111 contains a first magnetic chuck 31. The end face of the second group of lenses 2 is provided with multiple mounting grooves 21. The mounting holes 111 on the stop edge 11 correspond one-to-one with the mounting grooves 21 on the second group of lenses 2. Each mounting groove 21 contains a second magnetic chuck 32. The mounting holes 111 and mounting grooves 21 facilitate the installation of the first magnetic chuck 31 and the second magnetic chuck 32; moreover, the structure of the mounting holes 111 and mounting grooves 21 is simple and easy to manufacture.
[0056] Furthermore, the cross-sections of the mounting hole 111 and the mounting groove 21 are both circular, and the first magnetic suction member 31 and the second magnetic suction member 32 are both cylindrical. The structures of the mounting hole 111 and the mounting groove 21 are simple and easy to manufacture.
[0057] Optionally, such as Figure 1 As shown, grooves 112 are provided on opposite sides of the end of the mounting hole 111 away from the second lens group 2, and the side of the grooves 112 facing the mounting hole 111 is connected to the mounting hole 111. The grooves 112 provide a position for a hand or tool to grip the first magnetic member 31, so as to facilitate gripping the first magnetic member 31.
[0058] In this embodiment, the end face of the first magnetic chuck 31 away from the second lens group 2 is flush with the end face of the stop edge 11 away from the second lens group 2. This arrangement allows the first magnetic chuck 31 to be gripped via the groove 112, facilitating its placement and removal; moreover, it has a more aesthetically pleasing appearance.
[0059] In other embodiments, the end face of the first magnetic suction member 31 away from the second lens group 2 is located between the bottom of the groove 112 and the end face of the stop edge 11 away from the second lens group 2, so that the first magnetic suction member 31 can be clamped by hand or tool.
[0060] Optionally, multiple sets of adjustment elements 4 are arranged at equal intervals along the circumference of the two groups of lenses 2, so that they can be adjusted from the circumference of the first group of lenses 1, making it easier to adjust them into position.
[0061] In this embodiment, three sets of adjustment members 4 are arranged circumferentially around the second lens group 2. The three sets of adjustment members 4 are equally spaced along the circumference of the second lens group 2, enabling the core adjustment operation of the first lens group 1 from three positions. Moreover, the three sets of adjustment members 4 can better reduce the complexity of the operation. In other embodiments, the number of adjustment members 4 is not limited to three sets, but can also be four, five or more sets, which is not specifically limited here.
[0062] Furthermore, three aligning screw holes 22 are evenly spaced on the circumferential sidewall of the second lens group 2. An adjusting element 4 is installed within each aligning screw hole 22. The adjusting element 4 is an adjusting screw threaded into the aligning screw hole 22, which can move axially along the aligning screw hole 22 to abut against the sidewall of the first lens group 1. The adjusting screw, threaded into the aligning screw hole 22, allows for easy adjustment of the abutment degree of the first lens group 1 by turning the adjusting screw, thus enabling the alignment operation. The adjusting element 4 has a simple structure and is easy to manufacture.
[0063] Optionally, the end of the adjusting screw that does not abut against the group of lens groups 1 is provided with an operating groove (not shown in the figure). A tool is inserted into the operating groove to turn the adjusting screw, thereby adjusting the position of the adjusting screw and thus adjusting the degree of abutment against the group of lens groups 1.
[0064] In this embodiment, the operating groove is an internal hexagonal groove, which has a simple structure and makes it easy to adjust the adjusting screw using common tools.
[0065] Working principle and process:
[0066] (1) Pre-fixing and magnetic positioning: A magnetic component 3 is set on the mating surface of a group of lenses 1 and a group of lenses 2. The initial fixing of the group of lenses 1 and the group of lenses 2 is achieved by magnetic adsorption, reducing manual alignment errors.
[0067] (2) The optical axis offset is detected by the alignment instrument. The operator adjusts the three sets of adjustment screws in sequence. During the adjustment process, the magnetic component 3 provides flexible fixation, allowing small displacement and avoiding precision loss caused by mechanical rigid friction.
[0068] (3) Locking and verification: Double fixation is achieved by magnetic attraction and mechanical locking with adjusting screws to ensure stability. Then, the optical axis offset is measured until the requirements are met.
[0069] The advantages and functions of the alignment lens in this embodiment are as follows:
[0070] (1) Simplified operation process: Magnetic fixation replaces traditional mechanical clamps, reducing manual pre-alignment steps and improving efficiency. (2) Balance between cost and stability: Magnetic and mechanical locking dual fixation avoids the high cost and maintenance complexity of pure electromagnetic drive, while ensuring long-term stability. (3) Strong compatibility: Applicable to lens groups of different sizes, no need for customized clamps, and has better expandability than traditional automatic core alignment equipment.
[0071] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A self-aligning lens, characterized in that, It includes a group of lenses (1) and a group of lenses (2) nested together along the axial direction. One end of the group of lenses (1) extends into the group of lenses (2). The other end of the group of lenses (1) is provided with a stop edge (11) in the circumferential direction. The stop edge (11) can abut against the end face of the group of lenses (2). The two lens groups (2) and the stop edge (11) are magnetically connected by multiple sets of magnetic components (3); The circumferential sidewall of the two-group lens group (2) is provided with multiple sets of adjustment members (4), which can move radially along the two-group lens group (2) and can abut against the circumferential sidewall of the first-group lens group (1).
2. The alignment lens according to claim 1, characterized in that, The magnetic attraction component (3) includes a first magnetic attraction member (31) disposed on the stop edge (11) and a second magnetic attraction member (32) disposed on the end face of the two-group lens group (2). The first magnetic attraction member (31) on the stop edge (11) and the second magnetic attraction member (32) on the two-group lens group (2) are respectively disposed in correspondence. The first magnetic attraction member (31) can be magnetically attracted to the corresponding second magnetic attraction member (32).
3. The alignment lens according to claim 2, characterized in that, The stop edge (11) is provided with a plurality of mounting holes (111), and a first magnetic suction member (31) is inserted into each mounting hole (111); The end face of the two-group lens group (2) is provided with a plurality of mounting slots (21). The mounting holes (111) on the stop edge (11) are provided one-to-one with the mounting slots (21) on the two-group lens group (2). Each mounting slot (21) is provided with a second magnetic suction member (32).
4. The alignment lens according to claim 3, characterized in that, Grooves (112) are provided on opposite sides of the end of the mounting hole (111) away from the second lens group (2), and the side of the groove (112) facing the mounting hole (111) is connected to the mounting hole (111).
5. The alignment lens according to claim 4, characterized in that, The end face of the first magnetic suction member (31) away from the second group of lens groups (2) is located between the bottom of the groove (112) and the end face of the stop edge (11) away from the second group of lens groups (2). Alternatively, the end face of the first magnetic suction member (31) away from the second group of lenses (2) is flush with the end face of the stop edge (11) away from the second group of lenses (2).
6. The self-aligning lens according to any one of claims 1-5, characterized in that, Multiple sets of the magnetic attraction components (3) are arranged at equal intervals along the circumference of the group of lens groups (1).
7. The centering lens according to any one of claims 1-5, characterized in that, Multiple sets of the adjustment elements (4) are arranged at equal intervals along the circumference of the two groups of lenses (2).
8. The alignment lens according to claim 7, characterized in that, The two groups of lenses (2) are provided with three sets of adjustment members (4) in the circumferential direction, and the three sets of adjustment members (4) are provided at equal intervals along the circumferential direction of the two groups of lenses (2).
9. The alignment lens according to claim 7, characterized in that, The circumferential sidewall of the two-group lens assembly (2) is provided with a plurality of self-aligning screw holes (22) at equal intervals. The adjusting member (4) is an adjusting screw threaded into the self-aligning screw hole (22). The adjusting screw can move along the axial direction of the self-aligning screw hole (22) to abut against the sidewall of the first-group lens assembly (1).
10. The alignment lens according to claim 9, characterized in that, The end of the adjusting screw that does not abut against the group of lenses (1) has an operating groove.