CN215340486U

CN215340486U - Adjustable lens

Info

Publication number: CN215340486U
Application number: CN202121123749.7U
Authority: CN
Inventors: 沈佳敏; 梁晓云; 周洁
Original assignee: Jiaxing Zhongrun Optical Technology Co Ltd
Current assignee: Jiaxing Zhongrun Optical Technology Co Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-12-28
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses an adjustable lens, and relates to the technical field of optical equipment. The lens comprises a lens barrel and at least one lens group, wherein a placing groove for placing the lens group is formed in the lens barrel, and the radius of the placing groove is larger than that of the lens group; an elastic component is further arranged in the lens cone, and one end of the elastic component is abutted against the lens group; the lens cone is provided with an adjusting hole, and the adjusting hole is formed in the lens cone along the radial direction of the placing groove; the lens cone is also provided with a plurality of connecting components, and the lens group is connected to the lens cone through the connecting components; when the lens group is connected to the lens barrel through the connecting assembly, the distance between the lens group and the inner wall of the placing groove is adjustable. The adjusting mode of the original lens group is optimized, the adjustment of the coaxiality among the lens groups can be realized, and the imaging quality of the adjustable lens is improved.

Description

Adjustable lens

Technical Field

The utility model relates to the technical field of optical equipment, in particular to an adjustable lens.

Background

The optical lens is an essential component in a machine vision system, directly influences the quality of imaging quality and influences the realization and effect of an algorithm; the coaxiality between lens groups in the optical lens has a great influence on the final imaging of the lens.

The adjustable structure can be designed into to the inside lens group of general camera lens, but mostly through directly letting the inside group of tool contact of adjusting, toward a direction motion realization, realize the regulation of lens group axiality, increase the imaging quality of lens cone then.

At present, most of lens groups are in a triangular symmetrical structure, and when the lens groups are installed in a lens barrel, the lens groups are usually directly fixed in the lens barrel, coaxiality is easily generated among the plurality of lens groups, and then the imaging quality of the lens is reduced.

Disclosure of Invention

The utility model solves the technical problems in the prior art, provides the adjustable lens, optimizes the original adjusting mode of the lens groups, can also realize the adjustment of the coaxiality among the lens groups, and increases the imaging quality of the adjustable lens.

The technical scheme provided by the utility model is as follows:

an adjustable lens comprises a lens barrel and at least one lens group, wherein a placing groove for placing the lens group is formed in the lens barrel, and the radius of the placing groove is larger than that of the lens group; an elastic component is further arranged in the lens cone, and one end of the elastic component is abutted against the lens group; the lens cone is provided with an adjusting hole, and the adjusting hole is used for communicating the outside with the placing groove; the lens cone is also provided with a plurality of connecting components, and the lens group is connected to the lens cone through the connecting components; when the lens group is connected to the lens barrel through the connecting assembly, the distance between the lens group and the inner wall of the placing groove is adjustable.

Preferably, the connecting assembly includes a connecting rod, one end of the connecting rod is connected to the lens barrel, and the other end of the connecting rod is connected to the lens group; the movable group is provided with a connecting groove for the connecting rod to pass through, the radius of the connecting rod is smaller than that of the connecting groove, and a space is arranged between the outer wall of the connecting rod and the inner wall of the connecting groove.

Preferably, the connecting rod is screwed into the lens barrel.

Preferably, a cover plate is further arranged at one end, far away from the lens cone, of the connecting rod; the connecting rod is sleeved with a connecting spring, one end of the connecting spring is connected to the cover plate, and the other end of the connecting spring abuts against the lens group or the lens cone; and a space is arranged between the outer wall of the connecting spring and the inner wall of the connecting groove.

Preferably, a distance between an outer wall of the connection spring and an inner wall of the connection groove is the same as a distance between the lens group and the inner wall of the placement groove.

Preferably, the radius of the cover plate is larger than the radius of the coupling groove.

Preferably, an annular abutting table is arranged in the connecting groove, and the radius of the inner wall of the annular abutting table is larger than that of the connecting rod; one end of the connecting spring, which is far away from the cover plate, is connected to the annular abutting-joint table.

Preferably, the plurality of connecting members are uniformly wound around the lens group in a circumferential direction of the lens group.

Preferably, the lens group includes an embedding portion and a contact portion, the embedding portion is embedded in the placement groove, and the contact portion is in contact with an outer wall of the placement groove; the connecting assembly is arranged on the abutting portion.

Compared with the prior art, the adjustable lens provided by the utility model has the following beneficial effects:

1. through the setting of elastic component and regulation hole, the user only need stretch into two shaft-like objects and transfer, and one-way removal can be realized to shaft-like object combination elastic component, and the position control of the lens group in the camera lens of adjustable type is comparatively convenient, has optimized the regulative mode of original lens group simultaneously, also can realize the regulation of the axiality between a plurality of lens groups, has increased the imaging quality of camera lens of adjustable type.

2. Through coupling assembling's setting, coupling assembling can couple together lens cone and lens group, has reduced the possibility that coupling assembling and lens group separated, simultaneously, seting up of the internal spread groove of lens group, the connecting rod still has the degree of freedom of certain degree of removal in lens group, has realized then that lens group moves on the lens cone.

3. Through the arrangement of the connecting spring, the restraint between the connecting rod and the lens cone is increased, the restraint between the lens group and the lens cone is also increased, the possibility that the lens group 20 continues to shake after the connecting rod is connected to the lens cone is reduced, and the stability of the increased adjustable lens is improved.

Drawings

The above features, technical features, advantages and implementations of an adjustable lens are further described in the following detailed description of preferred embodiments with reference to the accompanying drawings.

FIG. 1 is a schematic view of an adjustable lens assembly according to the present invention;

FIG. 2 is a schematic side view of an adjustable lens assembly according to the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a schematic front view of an adjustable lens assembly according to the present invention;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 4;

fig. 6 is a partially enlarged view at C of fig. 5.

The reference numbers illustrate: 10. a lens barrel; 11. a placement groove; 12. an adjustment hole; 20. a lens group; 21. an embedding part; 22. an abutting portion; 23. connecting grooves; 30. an elastic component; 40. a connecting assembly; 41. a connecting rod; 42. a cover plate; 43. a connecting spring; 44. an annular abutment table;

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the utility model, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

For the sake of simplicity, only the parts related to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

Embodiment one, as shown in fig. 1 to 4 and fig. 6, an adjustable lens includes a lens barrel 10 and at least one lens group 20, a placement groove 11 for placing the lens group 20 is formed in the lens barrel 10, the placement groove 11 is located at the center of the lens barrel 10, the radius of the placement groove 11 is greater than the radius of the lens group 20, and a gap is formed between an outer wall of the lens group 20 and an inner wall of the placement groove 11, so that after the lens group 20 is placed in the placement groove 11, the lens group 20 can move to a certain extent in the placement groove 11, and then the adjustment is performed to adjust the imaging quality in the later stage.

The lens barrel 10 is further provided with an elastic element 30, one end of the elastic element 30 abuts against the lens group 20, in this embodiment, the elastic element 30 mainly refers to a component having an elastic function, such as a spring plate, a spring, a magnetic block, and the like, and the elastic element 30 can provide a unidirectional driving force to the lens group 20.

The lens barrel 10 is provided with an adjusting hole 12, and the adjusting hole 12 is used for communicating the outside with the placing groove 11.

When the lens group 20 is connected to the lens barrel 10 by the connecting assembly 40, the distance between the lens group 20 and the inner wall of the placing groove 11 is adjustable.

After having seted up regulation hole 12 in the adjustable camera lens, the user can stretch into in the regulation hole 12 and the butt on lens group 20 through shaft-like object, and after the user pressed lens group 20 and overcome elastic component 30's pressure, can drive lens group 20 and remove in standing groove 11, has realized then that the interval between lens group 20 and the standing groove 11 inner wall is adjusted.

In this embodiment, through the arrangement of the elastic component 30 and the adjusting hole 12, a user only needs to stretch two rod-shaped objects for adjustment, the rod-shaped objects can move in one direction by combining the elastic component 30, the position adjustment of the lens groups 20 in the adjustable lens is convenient, the original adjusting mode of the lens groups 20 is optimized, the adjustment of the coaxiality among the lens groups 20 can be realized, and the imaging quality of the adjustable lens is improved.

The connecting assembly 40 includes a connecting rod 41, one end of the connecting rod 41 is connected to the lens barrel 10, and the other end of the connecting rod 41 is connected to the lens group 20, in this embodiment, the upper end of the connecting rod 41 can be connected to the lens barrel 10, and the lower end of the connecting rod 41 is disposed on the lens group 20.

The lens group 20 is provided with a connecting groove 23 for the connecting rod 41 to pass through, the radius of the connecting rod 41 is smaller than that of the connecting groove 23, and a space is arranged between the outer wall of the connecting rod 41 and the inner wall of the connecting groove 23.

Through the arrangement of the connecting assembly 40, the connecting assembly 40 can connect the lens barrel 10 and the lens group 20, so that the possibility of separation of the connecting assembly 40 and the lens group 20 is reduced, meanwhile, the connecting groove 23 in the lens group 20 is formed, the connecting rod 41 still has a certain degree of freedom of movement in the lens group 20, and then the movement of the lens group 20 on the lens barrel 10 is realized.

The connecting rod 41 is in threaded connection with the inside of the lens barrel 10; through with connecting rod 41 threaded connection on lens cone 10, the user can realize being connected of connecting rod 41 and lens cone 10 through rotating, and the connected mode is comparatively simple and convenient.

A cover plate 42 is arranged at one end of the connecting rod 41 far away from the lens cone 10; the connecting rod 41 is sleeved with a connecting spring 43, one end of the connecting spring 43 is connected to the cover plate 42, and the other end of the connecting spring 43 is abutted to the lens group 20 or the lens barrel 10.

A space is provided between the outer wall of the coupling spring 43 and the inner wall of the coupling groove 23.

Through the arrangement of the connecting spring 43, the constraint between the connecting rod 41 and the lens barrel 10 is increased, and the constraint between the lens group 20 and the lens barrel 10 is also increased, so that the possibility that the lens group 20 continuously shakes after the connecting rod 41 is connected to the lens barrel 10 is reduced, and the stability of the adjustable lens is increased.

The interval between the outer wall of the coupling spring 43 and the inner wall of the coupling groove 23 is the same as the interval between the lens group 20 and the inner wall of the disposition groove 11.

By the limitation of the size of the connection spring 43, the possibility that the connection spring 43 is too large or too small is reduced, which facilitates the miniaturization of the lens barrel 10, and also reduces the possibility that the moving distance of the lens group 20 is reduced, increasing the reliability of the movement of the moving group.

The radius of the cover plate 42 is larger than that of the coupling groove 23.

In this embodiment, when the radius of the cover plate 42 is greater than the radius of the connecting groove 23, the cover plate 42 can abut against the upper end of the lens group 20, so that the limiting of the connecting rod 41 in the rotating process is realized, the possibility of damage of the connecting spring 43 is reduced, the possibility of impurities entering the connecting groove 23 is also reduced, and the moving reliability of the lens group 20 is improved.

An annular abutting table 44 is arranged in the connecting groove 23, and the radius of the inner wall of the annular abutting table 44 is larger than that of the connecting rod 41.

The end of the connecting spring 43 remote from the cover plate 42 is connected to the annular abutment 44.

In this embodiment, through the setting of the annular abutting table 44, the connection spring 43 can be embedded in the lens group 20, when the lens group 20 is not mounted on the lens barrel 10, the connection assembly 40 can be directly disposed on the lens group 20, and when the lens group 20 needs to be mounted on the lens barrel 10, the connection rod 41 can also initially position the lens group 20, which is convenient for the user to operate.

The plurality of connecting members 40 are uniformly wound around the lens group 20 in the circumferential direction of the lens group 20.

In this embodiment, the number of the connecting assemblies 40 is three, and the included angles between two adjacent connecting assemblies 40 are 120 °.

In the second embodiment, as shown in fig. 5 and 6, a difference between the present embodiment and the first embodiment is a specific structure of the lens group 20.

In addition to the first embodiment, in the present embodiment, the lens group 20 includes an embedded portion 21 and an abutting portion 22, the embedded portion 21 is embedded in the placement groove 11, and the abutting portion 22 abuts against an outer wall of the placement groove 11;

the connection assembly 40 is provided at the abutment 22.

In this embodiment, by providing the abutting portion 22, the abutting portion 22 can abut against the outer wall of the placement groove 11, so that the lens group 20 is horizontally limited, the possibility of the lens group 20 jumping on the lens barrel 10 is further reduced, and the reliability of the lens group 20 is increased.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable lens, which is characterized in that:

the lens comprises a lens barrel and at least one lens group, wherein a placing groove for placing the lens group is formed in the lens barrel, and the radius of the placing groove is larger than that of the lens group;

an elastic component is further arranged in the lens cone, and one end of the elastic component is abutted against the lens group;

the lens cone is provided with an adjusting hole, and the adjusting hole is used for communicating the outside with the placing groove;

the lens cone is also provided with a plurality of connecting components, and the lens group is connected to the lens cone through the connecting components;

when the lens group is connected to the lens barrel through the connecting assembly, the distance between the lens group and the inner wall of the placing groove is adjustable.

2. An adjustable lens according to claim 1, wherein:

the connecting assembly comprises a connecting rod, one end of the connecting rod is connected to the lens cone, and the other end of the connecting rod is connected to the lens group;

the lens group is provided with a connecting groove for the connecting rod to pass through, the radius of the connecting rod is smaller than that of the connecting groove, and a space is arranged between the outer wall of the connecting rod and the inner wall of the connecting groove.

3. An adjustable lens according to claim 2, wherein:

the connecting rod is connected in the lens barrel in a threaded mode.

4. An adjustable lens according to claim 3, wherein:

a cover plate is further arranged at one end of the connecting rod, which is far away from the lens cone;

the connecting rod is sleeved with a connecting spring, one end of the connecting spring is connected to the cover plate, and the other end of the connecting spring abuts against the lens group or the lens cone;

and a space is arranged between the outer wall of the connecting spring and the inner wall of the connecting groove.

5. An adjustable lens according to claim 4, wherein:

the distance between the outer wall of the connecting spring and the inner wall of the connecting groove is the same as the distance between the lens group and the inner wall of the placing groove.

6. An adjustable lens according to claim 4, wherein:

the radius of the cover plate is larger than that of the connecting groove.

7. An adjustable lens according to claim 4, wherein:

an annular abutting table is arranged in the connecting groove, and the radius of the inner wall of the annular abutting table is larger than that of the connecting rod;

one end of the connecting spring, which is far away from the cover plate, is connected to the annular abutting-joint table.

8. An adjustable lens according to claim 1, wherein:

the plurality of connecting components are uniformly surrounded on the lens group along the circumferential direction of the lens group.

9. An adjustable lens according to claim 1, wherein:

the lens group comprises an embedding part and a butting part, the embedding part is embedded in the placing groove, and the butting part is butted against the outer wall of the placing groove;

the connecting assembly is arranged on the abutting portion.