CN220207962U

CN220207962U - Lens module and camera equipment thereof

Info

Publication number: CN220207962U
Application number: CN202320730657.8U
Authority: CN
Inventors: 吉康荣; 樊胡兵
Original assignee: Hytera Communications Corp Ltd
Current assignee: Hytera Communications Corp Ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-12-19
Anticipated expiration: 2033-03-29

Abstract

The utility model relates to the field of production and manufacturing of photographic equipment, in particular to a lens module and imaging equipment thereof. Including camera lens, moving part and camera lens base, the external screw thread has been seted up at the periphery side to the camera lens, and the moving part has the first mounting hole that extends along the optical axis direction of camera lens and set up, is equipped with at least one spacing bump on the pore wall of first mounting hole, and the camera lens is located in the first mounting hole at least partially, and is arranged in rotating around the optical axis direction and makes spacing bump be arranged in the screw thread groove of external screw thread to carry out spacingly to the camera lens through spacing bump in the optical axis direction. The locking seat on the lens base is connected with the movable piece through the locking part and the locking piece. The design can avoid the situation that the lens is difficult to install due to the manufacturing tolerance of the lens with the same outer diameter, and can greatly reduce the reject ratio of the lens on the production line.

Description

Lens module and camera equipment thereof

Technical Field

The utility model relates to the field of production and manufacturing of photographic equipment, in particular to a lens module and imaging equipment thereof.

Background

Along with the increasing market demand, the quality requirements on the lens are also higher and higher during bidding and quality authentication, the angle of view, distortion, aperture and the like of the lens are important indexes for measuring the quality of the lens, and the lens with higher quality has larger angle of view, smaller distortion and larger aperture.

As a market standard part, the lens is provided with external threads, but the lens with the same external diameter generates errors due to parameters such as thread spacing or thread groove width and the like caused by the manufacturing process, when the errors are too large, the torsion is too large or too small to be installed even when the lens is installed on the corresponding lens base, so that the compatibility of the traditional lens base is poor. On the production line, the lens base with excessive error can cause the increase of the reject ratio, thereby influencing the interaction of the terminal products.

Disclosure of Invention

An object of the present disclosure is to provide a lens module and an image capturing apparatus thereof, and further to overcome the problem of poor compatibility between a lens and a lens base.

The present disclosure provides a lens module, comprising:

the lens is provided with external threads on the outer periphery side;

the movable piece comprises a locking part and a first mounting hole extending along the optical axis direction of the lens, at least one limiting convex point is arranged on the wall of the first mounting hole, the lens is at least partially arranged in the mounting hole and is used for rotating around the optical axis direction to enable the limiting convex point to be positioned in a thread groove of the external thread so as to limit the lens in the optical axis direction through the limiting convex point;

the lens base, the lens base has along the second mounting hole that extends and set up in the optical axis direction, at least part the moving part is located in the second mounting hole, the lens base be equipped with locking seat that locking portion corresponds, locking seat with the moving part passes through locking portion and retaining member are connected, when the retaining member locking, the spring provides reverse elasticity support the slide bar control the slide bar is in the travel distance in the slide hole, in order to control the travel distance of moving part drives the camera lens realizes focusing.

In an exemplary embodiment of the disclosure, the locking seat is provided with a sliding hole in the optical axis direction, the locking portion is provided with a sliding rod extending in the optical axis direction, and a spring is arranged in the sliding hole and is respectively abutted against the sliding hole and the sliding rod.

In an exemplary embodiment of the disclosure, the lens base further includes an avoidance groove penetrating through a side wall of the lens base, an opening of the avoidance groove is far away from one side of the locking seat, the avoidance groove is used for allowing the locking portion to be close to or far away from the locking seat in the optical axis direction, the locking portion can be attached to the locking seat, and a space is reserved between the locking portion and the locking seat through a limiting function of the bolt and the sliding rod.

In an exemplary embodiment of the disclosure, the lens base further includes a connection portion connected to the locking seat, the connection portion has an inner space to form a cavity, and the lens module further includes a main board located at an opening end of the cavity to be connected to the connection portion to seal the cavity;

in the optical axis direction, when the movable piece moves in the cavity, the locking part abuts against the locking seat to limit the travel limit of the movable piece in the cavity.

In an exemplary embodiment of the present disclosure, the sliding hole penetrates the locking seat, the sliding hole includes a first hole portion and a second hole portion that are communicated with each other, the diameter of the first hole portion is larger than that of the second hole portion to form a step surface, the spring is disposed in the first hole portion, the sliding rod is slidably disposed in the first hole portion, and the spring is abutted between the step surface and the sliding rod.

In an exemplary embodiment of the disclosure, the lens module further includes a waterproof ring sleeved on the outer wall of the movable member, and the waterproof ring can abut against the inner wall of the second mounting hole.

In an exemplary embodiment of the disclosure, a limiting portion is disposed at the bottom of the first mounting hole, the limiting portion is protruding on the inner wall of the first mounting hole, and the lens is disposed at the end of the first mounting hole and can be abutted to the limiting portion.

In an exemplary embodiment of the disclosure, the number of the limiting portions is two, and the two limiting portions are symmetrically disposed on the inner wall of the first mounting hole.

In an exemplary embodiment of the present disclosure, the locking seat is provided with a first locking hole penetrating therethrough in the optical axis direction, the locking part is provided with a second locking hole penetrating therethrough in the optical axis direction, and the locking member is simultaneously penetrated in the first locking hole and the second locking hole.

The present disclosure also provides an image pickup apparatus including a bracket and the lens module related in the above-described aspects, the bracket being connected to the lens module.

The lens module of the scheme has the following beneficial effects: the lens is provided with external threads on the outer periphery, the movable piece is provided with a first mounting hole extending along the optical axis direction of the lens, at least one limiting convex point is arranged on the wall of the first mounting hole, the lens is at least partially arranged in the first mounting hole and is used for rotating around the optical axis direction to enable the limiting convex point to be located in a thread groove of the external threads, and the lens is limited in the optical axis direction through the limiting convex point. The locking seat on the lens base is connected with the movable piece through the locking part and the locking piece. The design can avoid the situation that the lens is difficult to install due to the manufacturing tolerance of the lens with the same outer diameter, and can greatly reduce the reject ratio of the lens on the production line.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 is a schematic diagram of a first structure of a lens module according to an embodiment of the utility model;

FIG. 2 is a first cross-sectional view of a lens module according to an embodiment of the present utility model;

FIG. 3 is a second cross-sectional view of a lens module according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of a second structure of a lens module according to an embodiment of the utility model.

Reference numerals illustrate:

100. a lens; 110. an external thread; 200. a movable member; 210. a locking part; 220. a slide bar; 230. a first mounting hole; 231. a limit part; 232. limiting protruding points; 300. a lens mount; 310. a second mounting hole; 320. a locking seat; 330. a slide hole; 331. a first hole portion; 332. a second hole portion; 340. an avoidance groove; 350. a connection part; 351. a cavity; 400. a locking member; 410. a first locking hole; 420. a second locking hole; 500. a spring; 600. a waterproof ring; 700. and a main board.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

The disclosure is further described in detail below with reference to the drawings and detailed description. It should be noted that the technical features of the embodiments of the present disclosure described below may be combined with each other as long as they do not collide with each other. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

It should be noted that: references herein to "a plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The embodiment of the disclosure provides a lens module, including lens 100, moving part 200 and lens base 300, external screw thread 110 has been seted up to the lens 100 in the periphery side, moving part 200 has along the first mounting hole 230 that extends the setting in the optical axis direction of lens 100, be equipped with at least one spacing bump 232 on the pore wall of first mounting hole 230, lens 100 is located in first mounting hole 230 at least partially, and be used for rotating around the optical axis direction and make spacing bump 232 be located external screw thread 110's thread groove, in order to carry out spacingly to lens 100 in the optical axis direction through spacing bump 232. The locking seat 320 on the lens mount 300 is connected with the movable member 200 through the locking part 210 and the locking member 400. The design can avoid the situation that the lens 100 is difficult to install due to the manufacturing tolerance of the lens 100 with the same outer diameter, and can greatly reduce the reject ratio of the lens 100 on the production line.

Referring to fig. 1 and 2, the lens 100 is made of standard components with the same outer diameter, the external thread 110 is provided with a tolerance range during manufacturing, when the external thread 110 is at two tolerance limits, the torque force is too large or too small during matching with other threads, the external thread is limited in the thread groove through the limiting convex point 232, the contact area with the thread groove is reduced, when the lens 100 is screwed into the first mounting hole 230, the thread end which firstly enters the first mounting hole 230 is contacted with the limiting convex point 232, the lens 100 is rotated, and the limiting convex point 232 is gradually clamped into the thread groove of the external thread 110. Thereby achieving a limit of the lens 100.

In this embodiment, when the lens 100 is mounted in the first mounting hole 230, at least a portion of the lens 100 is disposed in the mounting hole, the threaded section of the external thread 110 determines the screwing depth according to the actual situation, and the near-light opening of the lens 100 protrudes out of the first mounting hole 230.

In some embodiments, the near light port of the lens 100 may also be flush with the first mounting hole 230.

Referring to fig. 1, the lens mount 300 has a second mounting hole 310 extending in the optical axis direction, and at least a portion of the movable member 200 is disposed in the second mounting hole 310. The movable member 200 is in clearance fit with the second mounting hole 310 so that the movable member 200 is slidably disposed in the second mounting hole 310, and the depth of the movable member 200 mounted in the second mounting hole 310 is set according to practical situations.

Referring to fig. 1, the movable member 200 includes a locking part 210, and the lens mount 300 is provided with a locking seat 320 corresponding to the locking part 210, and the locking seat 320 is coupled with the movable member 200 through the locking part 210 and the locking member 400.

Further, the locking seat 320 is provided with a first locking hole 410 penetrating therethrough in the optical axis direction, the locking portion 210 is provided with a second locking hole 420 penetrating therethrough in the optical axis direction, and the locking member 400 is simultaneously inserted into the first locking hole 410 and the second locking hole 420.

Further, the first locking hole 410 and the second locking hole 420 are threaded holes, and the locking member 400 is a bolt.

In this embodiment, the locking portion 210 is protruding on the outer wall of the movable member 200, the locking seat 320 can at least partially overlap with the projection of the movable member 200 in the optical axis direction, when the movable member 200 is mounted in the mounting hole, the locking portion 210 can abut against the locking seat 320, and the locking seat 320 and the locking portion 210 are connected by the locking member 400.

Referring to fig. 3, the locking seat 320 is provided with a sliding hole 330 in the optical axis direction, the locking part 210 is provided with a sliding rod 220 extending in the optical axis direction, a spring 500 is provided in the sliding hole 330, the spring 500 abuts against the sliding hole 330 and the sliding rod 220, respectively, and the spring 500 can play a role in damping during and after the locking of the locking member 400 to protect the lens 100.

In this embodiment, when the locking member 400 is locked, the spring 500 provides a reverse elastic force to support the sliding rod 220 to control the travel distance of the sliding rod 220 in the sliding hole 330, so as to control the movement distance of the movable member 200 to drive the lens 100 to achieve focusing. After focusing is completed, the locking state of the locking member 400 is maintained, and the spring 300 provides an elastic force to maintain the height of the movable member 200, so that the focal length of the lens 100 is unchanged. When the imaging is unclear due to the focus change of the lens 100, the tightness of the locking member 400 is adjusted accordingly to refocus.

In this embodiment, the precise focusing of the lens can be achieved by adjusting the distance between the locking portion 210 and the locking seat 320, and the lens is controlled to move up and down until the image is clear. After focusing, the joint between the lens and the movable piece and the joint between the movable piece and the lens base are fixed by gluing.

In this embodiment, the locking member 400 is spirally inserted into the locking seat 320 from the direction of the locking portion 210. The sliding holes 330 are symmetrically distributed on two sides of the sliding holes 330, so that the two sliding rods 220 are uniformly stressed, and the bolts are conveniently screwed in.

Referring to fig. 3, the sliding hole 330 penetrates the locking seat 320, the sliding hole 330 includes a first hole 331 and a second hole 332 that are communicated with each other, the diameter of the first hole 331 is larger than that of the second hole 332 to form a stepped surface, the spring 500 is disposed in the first hole 331, the slide bar 220 is slidably disposed in the first hole 331, and the spring 500 is abutted between the stepped surface and the slide bar 220. Such a design spring 500 can provide a shock absorbing effect and also can provide a limiting effect on the slide bar 220.

In this embodiment, by setting the depth of the second hole 332 and the depth of the first hole 331 differently, the depth of insertion of the slide bar 220 can be limited, further limiting the stroke length of the movable member 200 in the first mounting hole 230.

Further, the height of the movable member 200 also determines the travel length of the movable member 200 in the first mounting hole 230, and in practice, the depth of the first hole 331, the depth of the second hole 332, and the height of the movable member 200 need to be combined, so as to achieve a more accurate limiting function.

Referring to fig. 1 and 2, the lens mount 300 further includes a relief groove 340 penetrating through a sidewall of the lens mount 300, an opening of the relief groove 340 being away from the locking seat 320, the relief groove 340 being adapted to allow the locking portion 210 to be close to or away from the locking seat 320 in the optical axis direction.

In this embodiment, the locking portion 210 is slidably disposed in the avoidance groove 340, the bottom of the avoidance groove 340 is adjacent to the locking seat 320, and when the locking portion 210 moves in the avoidance groove 340, the locking portion 210 can be attached to the locking seat 320, and a space is also kept between the locking portion 210 and the locking seat 320 by the limiting function of the bolt and the slide rod 220.

Referring to fig. 2, the lens chassis 300 further includes a connection part 350 connected to the locking seat 320, a cavity 351 is formed by a space formed inside the connection part 350, and the lens module further includes a main board 700, and the main board 700 is located at an open end of the cavity 351 to connect with the connection part 350 to seal the cavity 351.

In the present embodiment, when the movable member 200 moves in the cavity 351 in the optical axis direction, the locking portion 210 abuts against the locking seat 320 to limit the travel limit of the movable member 200 in the cavity 351. The movable member 200 is prevented from touching the main board 700, thereby preventing the movable member 200 from damaging the main board 700.

Referring to fig. 3, the lens module further includes a waterproof ring 600, the waterproof ring 600 is sleeved on the outer wall of the movable member 200, and the waterproof ring 600 can abut against the inner wall of the second mounting hole 310. The waterproof ring 600 can play a role of preventing water and dust, and when the movable member 200 moves in the second mounting hole 310, the waterproof ring 600 can provide a greater friction force, preventing the movable member 200 from moving in an unintended trajectory.

Referring to fig. 3, a limiting portion 231 is disposed at the bottom of the first mounting hole 230, the limiting portion 231 is protruding on the inner wall of the first mounting hole 230, and the end portion of the lens 100 disposed in the first mounting hole 230 can abut against the limiting portion 231. When the lens 100 is mounted, the limit of the movement of the lens 100 can be limited, so as to avoid damage caused by the lens 100 touching the electronic components on the motherboard 700.

In this embodiment, the number of the limiting portions 231 is two, and the two limiting portions 231 are symmetrically disposed on the inner wall of the first mounting hole 230. Can play a better limiting effect.

The embodiment of the disclosure also provides an image pickup apparatus, which comprises a bracket and a lens module related to the scheme, wherein the bracket is connected with the lens module, and can be supported on the ground or clamped on clothes.

In the present disclosure, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In the description of the present specification, reference to the term "some embodiments" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present disclosure have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure, which is therefore intended to be within the scope of the present disclosure as defined by the claims and specification.

Claims

1. A lens module, comprising:

the lens is provided with external threads on the outer periphery side;

the movable piece comprises a locking part and a first mounting hole which is extended along the optical axis direction of the lens, at least one limiting convex point is arranged on the wall of the first mounting hole, the lens is at least partially arranged in the first mounting hole and is used for rotating around the optical axis direction to enable the limiting convex point to be positioned in a thread groove of the external thread, so that the lens is limited in the optical axis direction through the limiting convex point;

the lens base is provided with a second mounting hole extending along the optical axis direction, at least part of the movable piece is arranged in the second mounting hole, the lens base is provided with a locking seat corresponding to the locking part, and the locking seat is connected with the movable piece through the locking part and the locking piece.

2. The lens module according to claim 1, wherein the locking seat is provided with a sliding hole in the optical axis direction, the locking portion is provided with a sliding rod extending in the optical axis direction, a spring is arranged in the sliding hole and is respectively abutted against the sliding hole and the sliding rod, and when the locking piece is locked, the spring provides reverse elastic force to support the sliding rod to control the travel distance of the sliding rod in the sliding hole so as to control the movement distance of the movable piece to drive the lens to achieve focusing.

3. The lens module according to claim 2, wherein the lens mount further includes a dodging groove penetrating through a side wall of the lens mount, an opening of the dodging groove being away from a side of the locking seat, the dodging groove being for allowing the locking portion to be close to or away from the locking seat in the optical axis direction.

4. A lens module according to claim 3, wherein the lens mount further comprises a connecting portion connected to the locking seat, the connecting portion having an inner space, the lens module further comprising a main plate located at an open end of the cavity to connect with the connecting portion to seal the cavity;

5. The lens module as claimed in claim 3 or 4, wherein,

the sliding hole penetrates through the locking seat, the sliding hole comprises a first hole part and a second hole part which are communicated with each other, the diameter of the first hole part is larger than that of the second hole part to form a step surface, the spring is arranged in the first hole part, the sliding rod is arranged in the first hole part in a sliding mode, and the spring is abutted to the position between the step surface and the sliding rod.

6. The lens module of claim 1, further comprising a waterproof ring sleeved on the outer wall of the movable member, wherein the waterproof ring can abut against the inner wall of the second mounting hole.

7. The lens module according to claim 1, wherein a limiting portion is disposed at the bottom of the first mounting hole, the limiting portion is protruding on the inner wall of the first mounting hole, and the end portion of the lens disposed in the first mounting hole can be abutted to the limiting portion.

8. The lens module as claimed in claim 7, wherein the number of the limiting portions is two, and the two limiting portions are symmetrically disposed on the inner wall of the first mounting hole.

9. The lens module according to claim 1, wherein the locking seat is provided with a first locking hole penetrating therethrough in the optical axis direction, the locking portion is provided with a second locking hole penetrating therethrough in the optical axis direction, and the locking member is simultaneously penetrated in the first locking hole and the second locking hole.

10. An image pickup apparatus comprising a holder and the lens module according to any one of claims 1 to 9, the holder being connected to the lens module.