CN211528793U - Structure for quickly adjusting coaxiality of lens - Google Patents

Abstract

The utility model discloses a structure for quickly adjusting the coaxiality of lenses, which comprises a group frame, a group frame cavity is arranged in the group frame, the lenses are arranged in the group frame cavity, an elastic sheet for abutting the lenses against the group frame is also arranged on the group frame, at least three elastic sheet screw holes and at least three salient points for abutting against the lenses are arranged on the elastic sheet, the elastic sheet screw holes and the salient points are distributed along the circumferential direction of the elastic sheet, screws for connecting with the group frame and positioning the elastic sheet are penetrated in the elastic sheet screw holes, the elastic sheet abuts against the lenses against the group frame to enable the lenses to be flush with the bearing surface of the group frame cavity, a gap is reserved between the side wall of the lenses and the side surface of the group frame cavity, on one hand, the lenses are tightly attached to the group frame under the elastic action of the elastic sheet, on the other hand, the lenses are unlikely to be locked and unable to move, when the coaxiality of the lenses and the group frame is adjusted, the, the coaxiality of the lens can be quickly adjusted, and the requirements of the increasingly-improved specification of optics and the design performance of a lens can be met.

Description

Structure for quickly adjusting coaxiality of lens

[ technical field ]

The utility model relates to a structure of quick adjustment lens axiality.

[ background art ]

With the rapid development of high and new technologies, the security optical zoom lens is widely applied. In order to meet the market demand, more and more lenses use large chips with high resolution, and zoom lenses are applied to different environments in different fields, so that the design difficulty of the lenses is higher and higher, the technical requirements of each group are higher and higher, and the requirements on product molding, process manufacturing and the like are also higher and higher.

The coaxiality deviation of the lens and the group frame is one of the most main factors influencing the performance of the optical lens, the coaxiality refers to the degree that the central axis of the lens is consistent with the central axis of the group frame, if the coaxiality is high, the optical performance of the lens is good, and if the coaxiality is low, the optical performance is poor.

In the existing production and manufacturing technology, the lens coaxiality is adjusted by clamping the lens through a manipulator, the manipulator presses the lens to make the lens abut against a group frame, and applies radial acting force to the lens by the manipulator so as to make the central axis of the lens coaxial with the central axis of the group frame as much as possible. However, the existing production and manufacturing technology has the following problems and disadvantages: the device structure of adjusting the lens axiality is complicated, and accommodation process technology is complicated, and manufacturing cost is high, has the restriction to the multiplying power of adjusting the lens axiality moreover, and if the light angle is big, the tool can't avoid, has the risk of vignetting, influences product quality.

The utility model discloses it is based on above problem produces.

[ contents of utility model ]

The utility model aims at prior art not enough, a structure of quick adjustment lens axiality is proposed, bump through on the shell fragment makes the lens top lean on crowd's frame, the elastic action that the lens received the shell fragment on the one hand is hugged closely on crowd's frame, on the other hand lens is unlikely to by the lock death and unable removal, consequently when adjusting the axiality of lens and crowd's frame, can follow the lens radial direction and push away the lens removal, make the axis of lens and the axis coincidence of crowd's frame as far as possible, realize the axiality of quick adjustment lens and crowd's frame.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a structure of quick adjustment lens axiality, its characterized in that includes crowd's frame 1, be equipped with crowd's frame chamber 11 in the crowd's frame 1, lens 2 has been placed in the crowd's frame chamber 11, still be equipped with on the crowd's frame 1 and lean on lens 2 top shell fragment 3 on the crowd's frame 1, be equipped with at least three shell fragment screw 31 and at least three bump 32 that leans on lens 2 on the shell fragment 3, shell fragment screw 31 with bump 32 distributes along the circumferencial direction of shell fragment 3, wear to be equipped with in the shell fragment screw 31 and be connected and fix a position the screw 4 of shell fragment 3 with crowd's frame 1.

The structure for quickly adjusting the coaxiality of the lens is characterized in that the elastic sheet 3 comprises a circular ring 33, three lugs 34 which are integrally formed with the circular ring 33 and evenly distributed are arranged on the outer side of the circular ring 33, and the elastic sheet screw hole 31 is located on the lugs 34.

A structure for quickly adjusting the coaxiality of a lens is characterized in that three convex points 32 which are uniformly distributed are arranged on a circular ring surface of a circular ring 33 facing to the lens 2.

A structure for quickly adjusting the coaxiality of a lens is characterized in that a salient point 32 is formed by stamping on a circular ring 33, and the salient point 32 and the circular ring 33 are integrally formed.

A structure for quickly adjusting the coaxiality of a lens is characterized in that a group frame screw hole 12 matched with a screw 4 is formed in a group frame 1, and the screw 4 penetrates through an elastic sheet screw hole 31 and then is screwed into the group frame screw hole 12 to enable a convex point 32 to abut against the lens 2.

The utility model has the advantages that:

1. the lens is tightly attached to the group frame under the elastic action of the elastic sheet, so that the lens cannot be locked and cannot move, the mechanical arm device does not need to press the lens on the front side, and the central axis of the lens can be coincided with the central axis of the group frame only by moving the lens in the radial direction, so that the coaxiality of the lens can be quickly adjusted, and the operation is flexible and simple;

2. the utility model has simple structure, convenient operation, less time consumption, great production yield of the elevator, capacity improvement, and avoidance of the disadvantages of high cost and complex operation brought by the previous manipulator device and image recognition operation;

3. the mechanical hand device for adjusting the coaxiality of the lens of the utility model has simple structure, greatly simplifies the adjusting process, and greatly reduces the production cost and the manufacturing procedure;

4. the utility model avoids the defects of tolerance inclination accumulated by a plurality of lenses, being far away from the optical design value and being difficult to realize the optical design target;

5. the moving direction of the lens coaxiality of the utility model regulated by the mechanical hand device is only the radial direction of the lens, and the mechanical hand device does not need to press and attach the lens along the front side of the optical axis direction, so that the tool can not be avoided due to large light angle, and the application range of regulating the lens coaxiality is wider;

6. the utility model has no requirement on the multiplying power for adjusting the coaxiality of the lens, indirectly reduces the difficulty of optical design, simplifies the structure and reduces the cost;

7. the optical design device can meet the increasingly-improved specification requirement of optics and the optical design performance, and make up the defects of the existing production and product technology;

8. the utility model discloses a lens axiality is adjusted, can assist the improvement of the optical design degree of difficulty, concentrates on a design with sensitive item, finally promotes the wholeness ability of product design.

[ description of the drawings ]

Fig. 1 is a plan view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a plan view of the spring plate;

fig. 5 is a cross-sectional view of the salient point along the diameter direction of the elastic sheet ring.

[ detailed description of the invention ]

The following description is further detailed with reference to the accompanying drawings and embodiments of the present invention:

as shown in fig. 1-5, a structure for rapidly adjusting the coaxiality of lenses comprises a group frame 1, a group frame cavity 11 is arranged in the group frame 1, lenses 2 are placed in the group frame cavity 11, an elastic sheet 3 capable of abutting the lenses 2 against the group frame 1 is further arranged on the group frame 1, at least three elastic sheet screw holes 31 and at least three salient points 32 abutting the lenses 2 are arranged on the elastic sheet 3, the elastic sheet screw holes 31 and the salient points 32 are distributed along the circumferential direction of the elastic sheet 3, and screws 4 connected with the group frame 1 and used for positioning the elastic sheet 3 penetrate through the elastic sheet screw holes 31. The elastic sheet 3 pushes the lens 2 against the group frame 1 to enable the lens 2 to be flatly attached to the bearing surface of the group frame cavity 11, a gap is reserved between the side wall of the lens 2 and the side surface of the group frame cavity 11, on one hand, the lens 2 is tightly attached to the group frame 1 under the elastic action of the elastic sheet 3, on the other hand, the lens 2 cannot be locked and cannot move, when the coaxiality of the lens 2 and the group frame 1 is adjusted, the lens 2 can be pushed to move along the radial direction of the lens 2, the central axis of the lens 2 is enabled to be overlapped with the central axis of the group frame 1 as much as possible, the coaxiality of the lens 2 can be rapidly adjusted, the operation is convenient, the specification requirements of optical increasing day by day are met, the optical design performance is improved, and. The mechanical arm device for adjusting the coaxiality of the lens 2 has a simple structure, greatly simplifies the adjusting process, and greatly reduces the production cost and the manufacturing process. Because the movement direction of adjusting the axiality of the lens 2 is only the radial direction of the lens 2, the mechanical hand device does not need to press the lens 2 on the front side, so that the jig can be avoided when the light angle is large, and the application range of adjusting the axiality of the lens 2 is wider.

As shown in fig. 4, the spring plate 3 includes a circular ring 33, three bumps 34 integrally formed with the circular ring 33 and uniformly distributed are disposed on the outer side of the circular ring 33, and the spring plate screw hole 31 is located on the bump 34. The screw 4 is connected with the group frame 1 after passing through the spring plate screw hole 31, so that the spring plate 3 is connected with the group frame 1.

As shown in fig. 4-5, three evenly distributed protrusions 32 are provided on the circular ring surface of the circular ring 33 facing the lens 2. Three bump 32 pushes up by lens 3, makes lens 2 keep flatly pasting on the face of leaning on of crowd's frame chamber 11 when manipulator device removes lens 2, makes lens 2 not take place the slope, and is easy and simple to handle, and is consuming time not much, and promotion machine kind production yield that simultaneously can be great promotes the productivity.

As shown in fig. 4 to 5, the bump 32 is formed by punching on the ring 33, and the bump 32 and the ring 33 are integrally formed.

As shown in fig. 2-3, the group frame 1 is provided with a group frame screw hole 12 matched with the screw 4, the screw 4 passes through the elastic sheet screw hole 31 and then is screwed into the group frame screw hole 12 to enable the convex point 32 to abut against the lens 2, on one hand, the lens 2 can be tightly attached to the group frame 1 under the elastic action of the elastic sheet 3, on the other hand, the lens 2 cannot be locked and cannot move, when the coaxiality of the lens 2 and the group frame 1 is adjusted, the lens 2 can be pushed to move along the radial direction of the lens 2, so that the central axis of the lens 2 is overlapped with the central axis of the group frame 1 as much as possible, and the coaxiality of the lens 2 can be rapidly. Meanwhile, for the coaxiality adjustment of the multiple lenses, the coaxiality of each lens and the group frame 1 can be adjusted in sequence, and the defects that the multiple lenses are accumulated, the tolerance is inclined, the multiple lenses are far away from an optical design value, and the optical design target is difficult to achieve are overcome. The novel structure has no requirement on the multiplying power for adjusting the coaxiality of the lens 2, indirectly reduces the difficulty of optical design, and simplifies the structure.

Claims (5)

1. The utility model provides a structure of quick adjustment lens axiality which characterized in that: including crowd frame (1), be equipped with crowd's frame chamber (11) in crowd frame (1), lens (2) have been placed in crowd's frame chamber (11), still be equipped with on crowd frame (1) and lean on lens (2) top shell fragment (3) on crowd frame (1), be equipped with bump (32) that lens (2) were leaned on at least three shell fragment screw (31) and at least three top on shell fragment (3), shell fragment screw (31) with bump (32) distribute along the circumferencial direction of shell fragment (3), wear to be equipped with in shell fragment screw (31) and be connected and fix a position screw (4) of shell fragment (3) with crowd frame (1).

2. The structure for rapidly adjusting the coaxiality of the lens according to claim 1, wherein: the elastic sheet (3) comprises a circular ring (33), three lugs (34) which are integrally formed with the circular ring (33) and evenly distributed are arranged on the outer side of the circular ring (33), and the elastic sheet screw hole (31) is located on the lugs (34).

3. The structure for rapidly adjusting the coaxiality of the lens according to claim 2, wherein: the circular ring surface of the circular ring (33) facing the lens (2) is provided with three convex points (32) which are uniformly distributed.

4. A structure for rapidly adjusting the coaxiality of lenses according to claim 3, wherein: the salient point (32) is formed by stamping on the circular ring (33), and the salient point (32) and the circular ring (33) are integrally formed.

5. The structure for rapidly adjusting the coaxiality of the lens according to claim 1, wherein: the group frame (1) is provided with a group frame screw hole (12) matched with the screw (4), and the screw (4) penetrates through the elastic sheet screw hole (31) and then is screwed into the group frame screw hole (12) to enable the salient point (32) to be abutted against the lens (2).

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