Split lens core adjusting structure and optical lens

Abstract

The utility model belongs to lens core adjusting technical field, disclose a kind of split lens core adjusting structure and optical lens, split lens core adjusting structure includes installation main cylinder, core adjusting group and core adjusting gland.The end portion of installation main cylinder is provided with multiple recesses of inclined arrangement along circumferential interval;The outer wall of core adjusting group is provided with multiple core adjusting dog of one-to-one correspondence with recess along circumferential interval, and core adjusting dog is slidably arranged in recess, and there is adjustment gap between the end of core adjusting dog and the groove bottom of recess, and core adjusting dog can slide towards or away from the groove bottom of the recess corresponding to it to drive core adjusting group to incline;Core adjusting gland is sleeved in core adjusting group, and is coaxially connected to installation main cylinder, and the end of core adjusting gland towards core adjusting group is provided with multiple limit surface of one-to-one correspondence with core adjusting dog, and limit surface is pressed on the side of core adjusting dog away from installation main cylinder.The structure of the split lens core adjusting structure is simple, small in size, and can quickly core adjusting, and the efficiency of core adjusting is high.

Description

Technical Field

[0001] This utility model relates to the field of lens alignment technology, and in particular to a split lens alignment structure and optical lens. Background Technology

[0002] As the lens industry matures and people become more security conscious, the market demands for security lenses are increasing. The need for high image quality in security lenses is a major challenge that urgently needs to be addressed.

[0003] Currently, the market demands increasingly higher image quality from high-quality, large-aperture integrated lens modules. During lens assembly, the coaxiality and tilt of the optical elements in a lens group significantly impact image quality. It's crucial to correct the tilt of other groups while ensuring the lens's own coaxiality with the optical axis. Current methods for adjusting lens tilt include: ① Adjusting the tilt of the lens group using algorithms by placing different shims under the adjustment group; ② Adding a spring under the adjustment group and adjusting its height by tightening screws during actual shooting, thereby adjusting the tilt. However, method one requires initially placing basic shims, testing, and then re-placing them, resulting in low adjustment efficiency. Method two requires manually tightening and loosening screws and determining resolution, also leading to slow adjustment efficiency. Furthermore, existing adjustment structures typically consist of an adjustment group and a main barrel, combining adjustment with limiting, resulting in a large and complex structure that is difficult to assemble.

[0004] Therefore, there is an urgent need for a split-type lens adjustment structure and optical lens to solve the above problems. Utility Model Content

[0005] According to one aspect of this utility model, the objective is to provide a split-type lens adjustment structure, which has a simple structure, small size, and can achieve rapid adjustment with high adjustment efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The split-type lens adjustment structure includes:

[0008] The main cylinder is installed, and multiple inclined grooves are provided at intervals along the circumference at the end of the main cylinder.

[0009] The core adjusting group has multiple core adjusting claws that are spaced apart along the circumferential direction on its outer wall, each corresponding to a groove. The core adjusting claws are slidably disposed in the grooves, and there is an adjustment gap between the end of the core adjusting claw and the bottom of the groove. The core adjusting claws can slide toward or away from the bottom of the groove to tilt the core adjusting group.

[0010] The adjusting cap is sleeved outside the adjusting core group and coaxially connected to the mounting main cylinder. The end of the adjusting cap facing the adjusting core group is provided with a plurality of limiting surfaces corresponding to the adjusting core claws. The limiting surfaces abut against the side of the adjusting core claws away from the mounting main cylinder.

[0011] Optionally, the groove includes a first sidewall and a second sidewall connected at an angle. The first sidewall is inclined along the radial direction of the mounting main cylinder away from the adjusting cap. The second sidewall is connected to one end of the first sidewall away from the axis of the mounting main cylinder. The adjusting claw is slidably connected to the first sidewall. The adjusting gap is formed between the end of the adjusting claw and the second sidewall.

[0012] Optionally, the adjusting claw includes a third sidewall and a fourth sidewall, the third sidewall abutting against the first sidewall and the fourth sidewall abutting against the limiting surface.

[0013] Optionally, the third sidewall is provided with a boss extending circumferentially along the self-aligning group, the boss contacting the first sidewall line; and / or,

[0014] The fourth sidewall is provided with a boss extending circumferentially along the core-aligning group, and the boss is in contact with the limiting surface line.

[0015] Optionally, the limiting surface is an inclined surface, and along the direction close to the mounting main cylinder, the limiting surface gradually moves away from the axis of the adjusting cover.

[0016] Optionally, the end of the adjusting cap is provided with a plurality of glue dispensing grooves at circumferential intervals, and the plurality of glue dispensing grooves correspond one-to-one with the plurality of adjusting claws. The glue dispensing grooves can also communicate with the corresponding grooves.

[0017] Optionally, the adjusting cap is further provided with a first connecting part, which is circumferentially disposed between two adjacent limiting surfaces, and the end of the mounting main cylinder is provided with a second connecting part, which is circumferentially disposed between two adjacent grooves, and the first connecting part and the second connecting part are connected by fasteners.

[0018] Optionally, one of the first connecting part and the second connecting part is provided with a positioning hole, and the other is provided with a positioning post. When the adjusting cover is connected to the mounting main cylinder, the positioning post can be inserted into the positioning hole.

[0019] Optionally, three of each of the groove, the adjusting claw, and the limiting surface are provided.

[0020] According to another aspect of the present invention, the object is to provide an optical lens, including the split lens adjustment structure described in any of the above claims, and further including multiple lens groups, wherein the multiple lens groups are sequentially arranged in the mounting main tube along the axial direction.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides a split-type lens alignment structure. The end of the main mounting tube has multiple inclined grooves spaced circumferentially. The outer wall of the alignment group has multiple alignment claws spaced circumferentially, each corresponding to one of the grooves. The alignment claws are slidably positioned within the grooves. The end of the alignment cap facing the alignment group has multiple limiting surfaces corresponding to one of the alignment claws, which press against the side of the alignment claws away from the main mounting tube. The grooves, alignment claws, and limiting surfaces correspond one-to-one, and the limiting surfaces press the alignment claws against the grooves in the main mounting tube. The overall structure is simple and compact.

[0023] During lens alignment, the adjustment gap provides space for the alignment claws to slide. By sliding the alignment claws toward or away from the bottom of the corresponding groove, the alignment group is tilted, achieving rapid alignment. The alignment operation is simple and efficient. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the split lens alignment structure provided in this embodiment of the utility model;

[0026] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0027] Figure 3 This is a schematic diagram of the core-adjusting group provided in an embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the adjusting cap provided in this embodiment of the utility model;

[0029] Figure 5 This is a schematic diagram of the installation main cylinder provided in an embodiment of the present utility model;

[0030] Figure 6This is a cross-sectional view of the mounting main cylinder provided in an embodiment of this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the optical lens provided in an embodiment of this utility model.

[0032] In the picture:

[0033] 100. Adjust the gap;

[0034] 1. Install the main tube; 11. Groove; 111. First side wall; 112. Second side wall; 12. Second connecting part; 121. Positioning post;

[0035] 2. Core alignment group; 21. Core alignment jaws; 211. Third sidewall; 212. Fourth sidewall; 213. Boss;

[0036] 3. Core adjusting cap; 31. Limiting surface; 32. Glue dispensing groove; 33. First connecting part; 331. Positioning hole;

[0037] 4. Fasteners; 5. Two-group assembly; 6. Three-group assembly; 7. Four-group assembly; 8. Rear main tube; 9. Gearbox; 10. Aperture; 110. Front adjustment ring; 120. Rear adjustment ring; 130. Main tube sticker. Detailed Implementation

[0038] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, 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. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] 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.

[0045] In the description of this utility model, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this utility model, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0046] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0047] like Figure 1As shown, this embodiment provides a split-type lens alignment structure, including a mounting main tube 1, an alignment group 2, and an alignment cap 3.

[0048] The mounting cylinder 1 has multiple inclined grooves 11 spaced circumferentially at its end. The outer wall of the adjusting cylinder group 2 has multiple adjusting claws 21 spaced circumferentially, each corresponding to one of the grooves 11, and these claws 21 are slidably disposed within the grooves 11. The adjusting cap 3 is fitted over the adjusting cylinder group 2 and coaxially connected to the mounting cylinder 1. The end of the adjusting cap 3 facing the adjusting cylinder group 2 has multiple limiting surfaces 31 corresponding to one of the adjusting claws 21, which press against the side of the adjusting claws 21 facing away from the mounting cylinder 1. In other words, the grooves 11, adjusting claws 21, and limiting surfaces 31 correspond one-to-one, and the limiting surfaces 31 can press the adjusting claws 21 into the grooves 11 of the mounting cylinder 1. The overall structure is simple and small in size.

[0049] Meanwhile, there is an adjustment gap 100 between the end of the adjusting claw 21 and the bottom of the groove 11. The adjusting claw 21 can slide toward or away from the bottom of the groove 11 corresponding to it, thereby tilting the adjusting group 2. In the process of adjusting the lens using the split lens adjusting structure provided in this embodiment, the adjustment gap 100 can provide movement space for the sliding of the adjusting claw 21. By sliding the adjusting claw 21 toward or away from the bottom of the groove 11 corresponding to it, the adjusting group 2 is tilted, thereby achieving rapid adjustment, simple adjustment operation, and high adjustment efficiency.

[0050] Preferably, in this embodiment, three of each of the groove 11, the adjusting claw 21, and the limiting surface 31 are provided. These three points define a plane, and through the cooperation of the three sets of grooves 11, adjusting claws 21, and limiting surfaces 31, reliable adjusting of the adjusting group 2 can be achieved.

[0051] Continue to refer to Figure 1 and Figure 2 The groove 11 includes a first sidewall 111 and a second sidewall 112 connected at an angle. The first sidewall 111 is inclined along the radial direction of the mounting main cylinder 1 away from the adjusting cap 3. The second sidewall 112 is connected to the end of the first sidewall 111 opposite to the axis of the mounting main cylinder 1. The adjusting claw 21 is slidably connected to the first sidewall 111. An adjustment gap 100 is formed between the end of the adjusting claw 21 and the second sidewall 112. The inclined arrangement of the first sidewall 111 facilitates the sliding connection between the adjusting claw 21 and the groove 11, and also makes the overall structure of the adjusting group 2 after being connected to the mounting main cylinder 1 more compact and reduces the volume.

[0052] Optionally, the adjusting jaw 21 includes a third sidewall 211 and a fourth sidewall 212. The third sidewall 211 abuts against the first sidewall 111, and the fourth sidewall 212 abuts against the limiting surface 31. That is, the limiting surface 31 applies a resisting force to the fourth sidewall 212, causing the third sidewall 211 to abut against the first sidewall 111 and form pressure, so as to ensure the stability of the position of the adjusting jaw 21 relative to the groove 11 and the limiting surface 31 during the adjusting process.

[0053] Furthermore, in this embodiment, a boss 213 extending circumferentially along the core-adjusting group 2 is provided on the third sidewall 211, and the boss 213 is in line contact with the first sidewall 111. This arrangement can effectively reduce the contact area between the core-adjusting claw 21 and the groove wall of the groove 11, thereby reducing the friction between the core-adjusting claw 21 and the groove wall of the groove 11. At the same time, the line contact between the boss 213 and the first sidewall 111 can increase the adjustment gap 100 between the core-adjusting claw 21 and the groove 11, so as to avoid excessive force between the core-adjusting claw 21 and the groove 11, and effectively prevent the core-adjusting claw 21 and the groove 11 from breaking during the core-adjusting process of the core-adjusting group 2.

[0054] Correspondingly, in other embodiments, a boss 213 extending circumferentially along the core-adjusting group 2 may also be provided on the fourth sidewall 212. The boss 213 contacts the limiting surface 31 and has the same function as above, which will not be described in detail here.

[0055] Preferably, the cross-sectional shape of the boss 213 is arc-shaped to facilitate the tilting and sliding of the self-aligning claw 21.

[0056] Continue to refer to Figure 2 The limiting surface 31 is an inclined surface, and along the direction close to the mounting main cylinder 1, the limiting surface 31 gradually moves away from the axis of the adjusting cover 3. In this embodiment, the inclined direction of the limiting surface 31 is the same as the inclined direction of the first side wall 111. The limiting surface 31, the second side wall 112, and the first side wall 111 together form an adjusting groove with an opening facing the adjusting claw 21, thereby facilitating the installation and removal of the adjusting claw 21.

[0057] In this embodiment, the mounting main cylinder 1 can be fixed to the alignment group 2 by adhesive dispensing. The adhesive dispensing connection method is reliable and can avoid the situation where the alignment accuracy is affected by the screw tightening force, thus better ensuring the alignment yield.

[0058] Specifically, such as Figures 2-4 As shown, the end of the adjusting cap 3 is provided with multiple dispensing grooves 32 spaced circumferentially. Each dispensing groove 32 corresponds to a different adjusting claw 21, and the dispensing grooves 32 can also communicate with the corresponding grooves 11. Adhesive is dispensed into the dispensing grooves 32 and flows into the grooves 11 through the adjusting claws 21, thereby achieving the dispensing and fixing of the main cylinder 1 and the adjusting group 2.

[0059] Optionally, such as Figures 4-6 As shown, the adjusting cap 3 is also provided with a first connecting part 33, which is circumferentially disposed between two adjacent limiting surfaces 31. A second connecting part 12 is provided at the end of the mounting main cylinder 1, which is circumferentially disposed between two adjacent grooves 11. The first connecting part 33 and the second connecting part 12 are connected by fasteners 4 to complete the coaxial detachable connection between the adjusting cap 3 and the mounting main cylinder 1. In this embodiment, the fastener 4 can be a bolt or screw, or other threaded fastener. The corresponding first connecting part 33 and second connecting part 12 are each secured by two screws to ensure that the deformation of the arc-shaped structure is minimized.

[0060] Furthermore, one of the first connecting part 33 and the second connecting part 12 has a positioning hole 331, and the other has a protruding positioning post 121. When the adjusting cover 3 is connected to the mounting main cylinder 1, the positioning post 121 can be inserted into the positioning hole 331. In this embodiment, the positioning hole 331 is opened on the adjusting cover 3, and the positioning post 121 is located at the end of the mounting main cylinder 1. The cooperation between the positioning post 121 and the positioning hole 331 can achieve initial fixation when the adjusting cover 3 is connected to the mounting main cylinder 1, preventing the adjusting cover 3 and the mounting main cylinder 1 from shifting, thereby affecting the assembly efficiency.

[0061] This embodiment also provides an optical lens, such as Figure 7 As shown, the optical lens includes the split lens adjustment structure provided in this embodiment, and also includes multiple lens groups, which are arranged sequentially along the axial direction in the mounting main tube 1.

[0062] It is understood that the optical lens can be aligned using an external alignment device. Exemplarily, this external alignment device can be a prior art alignment machine, the structure and principle of which will not be elaborated upon in this embodiment.

[0063] The assembly and usage method of the optical lens provided in this embodiment is as follows:

[0064] During normal use, first install the front adjusting ring 110 onto the mounting main tube 1, then install the second group assembly 5 into the mounting main tube 1; after assembly, install the adjusting core group 2, then install the adjusting core cover 3, and screw 6 screws into the adjusting core cover 3 to prevent deformation; then install the aperture 10 onto the mounting main tube 1, and after assembly, install the third group assembly 6 onto the mounting main tube 1 and screw it in; after assembly, install the fourth group assembly 7 into the rear main tube 8; after assembly, assemble the mounting main tube 1 and the rear main tube 8 together, screw them in, then install the rear adjusting ring 120 and screw it in to prevent it from falling off; finally, after assembly, install the gearbox 9 onto the front adjusting ring 110 and the rear adjusting ring 120, screw it in, and the pre-adjustment assembly is complete.

[0065] After assembly, apply glue between the alignment cap 3 and the alignment group 2. Then, place the assembled optical lens on the alignment machine, drive the second group assembly 5 and the fourth group assembly 7 to the position where alignment is required, the jaws of the alignment machine clamp the alignment group 2, and the alignment machine drives the alignment jaw 21 to slide towards or away from the bottom of the corresponding groove 11, causing the alignment group 2 to tilt so that the resolution meets the requirements, and then cure the alignment group 2. After completion, apply the main tube sticker 130.

[0066] 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 other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations 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 split-type lens alignment structure, characterized in that, include: The main cylinder (1) is installed, and the end of the main cylinder (1) is provided with a plurality of inclined grooves (11) spaced apart along the circumference. The outer wall of the adjusting core group (2) is provided with a plurality of adjusting core claws (21) that correspond one-to-one with the grooves (11) along the circumferential direction. The adjusting core claws (21) are slidably disposed in the grooves (11). There is an adjustment gap (100) between the end of the adjusting core claw (21) and the bottom of the groove (11). The adjusting core claws (21) can slide toward or away from the bottom of the groove (11) to drive the adjusting core group (2) to tilt. The adjusting cap (3) is sleeved outside the adjusting group (2) and coaxially connected to the mounting main cylinder (1). The adjusting cap (3) has multiple limiting surfaces (31) that correspond one-to-one with the adjusting claws (21) at one end facing the adjusting group (2). The limiting surfaces (31) press against the side of the adjusting claws (21) away from the mounting main cylinder (1).

2. The split-type lens alignment structure according to claim 1, characterized in that, The groove (11) includes a first sidewall (111) and a second sidewall (112) connected at an angle. The first sidewall (111) is inclined along the radial direction of the mounting main cylinder (1) away from the adjusting cap (3). The second sidewall (112) is connected to one end of the first sidewall (111) away from the axis of the mounting main cylinder (1). The adjusting claw (21) is slidably connected to the first sidewall (111). The adjusting gap (100) is formed between the end of the adjusting claw (21) and the second sidewall (112).

3. The split-type lens alignment structure according to claim 2, characterized in that, The adjusting claw (21) includes a third sidewall (211) and a fourth sidewall (212). The third sidewall (211) abuts against the first sidewall (111), and the fourth sidewall (212) abuts against the limiting surface (31).

4. The split-type lens alignment structure according to claim 3, characterized in that, The third sidewall (211) is provided with a boss (213) extending circumferentially along the self-aligning group (2), the boss (213) being in line contact with the first sidewall (111); and / or, The fourth sidewall (212) is provided with a boss (213) extending circumferentially along the core-aligning group (2), and the boss (213) is in line contact with the limiting surface (31).

5. The split-type lens alignment structure according to claim 1, characterized in that, The limiting surface (31) is an inclined surface, and along the direction close to the mounting main cylinder (1), the limiting surface (31) gradually moves away from the axis of the adjusting cover (3).

6. The split-type lens alignment structure according to claim 1, characterized in that, The end of the adjusting cap (3) is provided with a plurality of dispensing grooves (32) spaced apart along the circumference. The plurality of dispensing grooves (32) correspond one-to-one with the plurality of adjusting claws (21). The dispensing grooves (32) can also communicate with the corresponding grooves (11).

7. The split-type lens alignment structure according to claim 1, characterized in that, The adjusting cap (3) is also provided with a first connecting part (33), which is circumferentially disposed between two adjacent limiting surfaces (31). The end of the mounting main cylinder (1) is provided with a second connecting part (12), which is circumferentially disposed between two adjacent grooves (11). The first connecting part (33) and the second connecting part (12) are connected by fasteners (4).

8. The split-type lens alignment structure according to claim 7, characterized in that, One of the first connecting part (33) and the second connecting part (12) has a positioning hole (331) and the other has a positioning post (121) protruding. When the adjusting cover (3) is connected to the mounting main cylinder (1), the positioning post (121) can be inserted into the positioning hole (331).

9. The split-type lens alignment structure according to any one of claims 1-8, characterized in that, The groove (11), the adjusting claw (21), and the limiting surface (31) are each provided with three corresponding features.

10. An optical lens, characterized in that, The system includes the split lens alignment structure as described in any one of claims 1-9, and further includes multiple lens groups, which are arranged sequentially along the axial direction within the mounting main tube (1).

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