CN213302646U

CN213302646U - Electric focusing lens

Info

Publication number: CN213302646U
Application number: CN202022307840.6U
Authority: CN
Inventors: 吴文龙; 唐亚; 郑勇强
Original assignee: Jiangxi Phoenix Optical Technology Co ltd
Current assignee: Jiangxi Phoenix Optical Technology Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-05-28
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses an electronic focusing lens, including camera lens, cam, connecting seat and power unit, in the connecting seat was located to the local cover of camera lens, the cam cover was located outside camera lens and the connecting seat, wherein: a straight groove is formed in the inner side of the side wall of the cam, a transmission mechanism is arranged on the outer side of the side wall of the cam, a limiting nail guide hole is formed in the radial direction of the cam, and a limiting nail guide is installed in the limiting nail guide hole; the outer side of the side wall of the lens is provided with a nail guide hole, and a nail guide is arranged in the nail guide hole; the side wall of the connecting seat is provided with a limiting groove and a chute; the power mechanism is connected with the outer side of the side wall of the connecting seat and is matched with the transmission mechanism to drive the cam to rotate; the guide nail is connected with the inclined groove and the straight groove in a sliding manner, and pushes the lens to move along the axial direction while the cam rotates; the limiting guide pin is connected with the limiting groove in a sliding mode, so that the cam and the connecting seat can rotate relatively and the relative movement of the cam and the connecting seat is limited. The scheme can realize electric focusing, is convenient to operate, high in debugging precision and debugging efficiency, long in service life and low in maintenance cost, and is suitable for different environmental requirements.

Description

Electric focusing lens

Technical Field

The utility model belongs to the technical field of the optics focusing, concretely relates to electronic focusing camera lens.

Background

The existing lens is mostly focused in a manual focusing mode, the camera needs to be refocused according to the actual environment after leaving the factory to the use environment, the camera shell needs to be disassembled again for manual focusing, and the debugging operation is complex and difficult. With the development of the industry, the miniaturization of the camera volume further compresses the operation space for focusing the lens, increases the difficulty of manual focusing of a debugger on a finished camera, and makes the camera become a main problem influencing actual assembly and debugging, thus urgently requiring solution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned problem, provide an electronic focusing camera lens, carry out the camera lens focusing through motor drive, solve traditional camera and disassemble the problem of focusing complex operation difficulty, make the camera lens more intelligent, convenient operation, debugging precision and debugging are efficient, long service life, maintenance cost are low, are applicable to different environmental requirements when more pleasing to the eye.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an electronic focusing lens, including the camera lens, still include cam, connecting seat and power unit, camera lens, cam and the coaxial setting of connecting seat, and the local cover of camera lens locate in the connecting seat, the cam housing is located outside camera lens and the connecting seat, wherein:

the inner side of the side wall of the cam is provided with at least one straight groove parallel to the axis, the outer side of the side wall is provided with a transmission mechanism, the side wall of the cam is also provided with a limiting guide nail hole along the radial direction, and the limiting guide nail hole is provided with a limiting guide nail;

the lens comprises a lens body, wherein at least one nail guide hole is formed in the outer side of the side wall of the lens body;

the side wall of the connecting seat is provided with a limiting groove and at least one chute, and the limiting groove is perpendicular to the axis;

the power mechanism is connected with the outer side of the side wall of the connecting seat and is matched with the transmission mechanism to drive the cam to rotate;

the guide nail is connected with the inclined groove and the straight groove in a sliding manner, and pushes the lens to move along the axial direction while the cam rotates;

the limiting guide pin is connected with the limiting groove in a sliding mode, so that the cam and the connecting seat can rotate relatively and the relative movement of the cam and the connecting seat is limited.

Preferably, the transmission mechanism is a second gear coaxial with the cam.

Preferably, power unit includes motor frame, motor and first gear, and the motor frame is connected with the lateral wall outside of connecting seat, and the motor is connected with the motor frame, and first gear and second gear meshing.

Preferably, the motor mount encloses a retaining groove.

Preferably, the number of the guide pins, the straight grooves and the inclined grooves is three.

Preferably, one end of the connecting seat far away from the cam is also provided with a threaded part for externally connecting the camera.

Preferably, the connecting seat is further provided with a through hole penetrating along the axis.

Preferably, the threaded portion is a C-port.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the problem that the traditional camera is complicated in disassembling and focusing operation is solved through motor focusing, so that the lens is more intelligent, the operation is convenient, and the debugging precision and the debugging efficiency are high;

2) by limiting the falling of the guide pins and the limiting guide pins, the service life is prolonged, and the maintenance cost is reduced;

3) the exposed guide pin, the limited guide pin and each slot hole are avoided, the guide pin is more concise and elegant, attractive and practical, the guide pin is suitable for different environmental requirements, and the guide pin is particularly suitable for special occasions with high use requirements such as vibration.

Drawings

Fig. 1 is a schematic structural view of the present invention;

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

fig. 3 is a schematic view of the cam structure of the present invention;

fig. 4 is a schematic view of the connecting seat structure of the present invention.

Description of reference numerals: 10. a lens; 20. a cam; 30. a connecting seat; 40. a motor frame; 50. a motor; 60. a first gear; 70. limiting guide pins; 80. guiding the nail; 11. a nail guide hole; 21. a straight groove; 22. a limiting groove; 23. a second gear; 24. limiting nail guiding holes; 31. a chute; 32. a bearing surface; 33. a threaded portion; 34. a motor frame mounting groove; 35. a first locking hole; 41. and a second locking hole.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

As shown in fig. 1-4, an electric focusing lens includes a lens 10, a cam 20, a connecting seat 30 and a power mechanism, the lens 10, the cam 20 and the connecting seat 30 are coaxially disposed, the lens 10 is partially sleeved in the connecting seat 30, the cam 20 is sleeved outside the lens 10 and the connecting seat 30, wherein:

the inner side of the side wall of the cam 20 is provided with at least one straight groove 21 parallel to the axis, the outer side of the side wall is provided with a transmission mechanism, the side wall of the cam 20 is also provided with a limiting nail guiding hole 24 along the radial direction, and the limiting nail guiding hole 24 is provided with a limiting nail guiding 70;

the lens comprises a lens 10, wherein at least one nail guide hole 11 is formed in the outer side of the side wall of the lens 10, and a nail guide 80 is installed in the nail guide hole 11;

a connecting seat 30, the side wall of which is provided with a limiting groove 22 and at least one chute 31, the limiting groove 22 is arranged perpendicular to the axis;

the power mechanism is connected with the outer side of the side wall of the connecting seat 30 and is matched with the transmission mechanism to drive the cam 20 to rotate;

the guide pin 80 is connected with the inclined groove 31 and the straight groove 21 in a sliding manner, and pushes the lens 10 to move along the axial direction while the cam 20 rotates;

the position limiting guide pin 70 is slidably connected with the position limiting groove 22, so that the cam 20 and the connecting seat 30 can rotate relatively and the relative movement of the cam 20 and the connecting seat 30 can be limited.

The lens driving device comprises a lens 10, a cam 20, a connecting seat 30 and a power mechanism, wherein the lens 10, the cam 20 and the connecting seat 30 are coaxially arranged, part (one end close to an imaging surface) of the lens 10 is sleeved in the connecting seat 30, and the cam 20 is sleeved outside the lens 10 and the connecting seat 30. At least one straight groove 21 parallel to the axis is formed in the inner side of the side wall of the cam 20, in the application, the straight groove 21 penetrates through the cam 20 along the axis, and the length of the straight groove 21 can be adjusted optionally according to the movement range. The transmission mechanism is arranged on the outer side of the side wall of the cam 20, the side wall of the cam 20 is further provided with a limiting nail guiding hole 24 along the radial direction, and the limiting nail guiding hole 24 is provided with a limiting nail guiding 70. At least one nail guiding hole 11 is arranged on the outer side of the side wall of the lens 10, and a nail guiding 80 is installed in the nail guiding hole 11. Limiting groove 22 and at least one chute 31 have been seted up to the lateral wall of connecting seat 30, and limiting groove 22 perpendicular to axis sets up, and chute 31 can design according to motion range to it is spacing to be used to the movement range of camera lens 10, can adjust focusing sensitivity and focusing range according to the demand, if the length in angle of inclination or groove.

The power mechanism is connected with the outer side of the side wall of the connecting seat 30 and is matched with the transmission mechanism to drive the cam 20 to rotate, the guide nail 80 is connected with the inclined groove 31 and the straight groove 21 in a sliding mode, and the limiting guide nail 70 is connected with the limiting groove 22 in a sliding mode and is used for enabling the cam 20 to only relatively rotate relative to the connecting seat 30 without relatively moving, so that the axial distance between the cam 20 and the connecting seat 30 is kept unchanged, the reduction of the axial moving efficiency of the connecting seat 30 and the lens 10 due to the decomposition force generated by the axial relative movement of the cam 20 and the connecting seat 30 is avoided, and the focusing speed is favorably. By rotating the cam 20, the straight groove 21 pushes the guide pin 80 to drive the lens 10 to rotate, and simultaneously, the lens 10 moves axially along the inclined groove 31, so that the lens 10 and the connecting seat 30 move in the axial direction to be adjusted, and the focusing is driven electrically.

The electric focusing is carried out through the matching of the power mechanism and the transmission mechanism on the cam 20, the intelligent focusing is realized, the realization can be directly realized through the control of the rear end, the defect that the camera shell is disassembled again or the lens at the position where the camera is contacted with the camera without zooming in needs to be manually focused is avoided, and the convenience of refocusing the camera is improved. The straight groove 21 is arranged on the inner side of the cam 20 and does not penetrate through the side wall of the cam 20, when the guide pin 80 is arranged in the straight groove 21, the guide pin cannot fall off through the blocking effect of the side wall of the cam 20, the key components are packaged to help to protect the internal structure, the guide pin is suitable for different environment requirements, and meanwhile, the appearance is more attractive.

In one embodiment, the transmission mechanism is a second gear 23 coaxial with the cam 20.

Wherein, the lateral wall outside of cam 20 is equipped with second gear 23, and second gear 23 sets up with cam 20 is coaxial, can drive whole cam 20 when second gear 23 rotates and rotate along the axis. In the present application, the second gear 23 is of an integral structure with the cam 20. It should be noted that the second gear 23 and the cam 20 can also be a split structure, for example, the second gear 23 and the cam 20 can be fixedly connected by screws, which is more convenient for replacing a vulnerable part and reduces the cost.

In one embodiment, the power mechanism includes a motor frame 40, a motor 50 and a first gear 60, the motor frame 40 is connected to the outer side of the side wall of the connecting base 30, the motor 50 is connected to the motor frame 40, and the first gear 60 is engaged with the second gear 23.

The power mechanism comprises a motor frame 40, a motor 50 and a first gear 60, wherein the motor frame 40 is an L-shaped motor support, a second locking hole 41 is formed in the mounting position, a first locking hole 35 corresponding to the second locking hole 41 is formed in the outer side of the side wall of the connecting seat 30, at least two first locking holes 35 and at least two second locking holes 41 are formed, the first locking hole 35 is connected with the second locking hole 41 through a screw, and then the motor frame 40 is fixedly connected with the connecting seat 30. The connecting seat 30 can be further provided with a motor frame mounting groove 34, the motor frame mounting groove 34 can be used for positioning the motor frame 40 or adjusting the relative position of the motor frame 40 and the cam 20, and the structure can be adjusted according to actual requirements. The motor 50 is connected to the motor frame 40, and the first gear 60 is engaged with the second gear 23. A power mechanism is arranged on the connecting seat 30, the motor 50 drives the first gear 60 and the second gear 23 to be meshed and driven to drive the cam 20 to rotate, so that electric driving focusing is realized, focusing is more intelligent, and convenience of camera refocusing is improved.

It should be noted that the shape of the motor frame 40 can be adjusted according to actual requirements, and the power mechanism and the transmission mechanism can also adopt a belt wheel or chain wheel transmission form, or a direct current motor or a stepping motor can be replaced according to requirements, so that the replacement is convenient, the use freedom can be improved, and meanwhile, the power mechanism can be modularized, and the assembly or the replacement is more convenient.

In one embodiment, the motor mount 40 encloses the retaining slot 22.

Wherein, cam 20 and connecting seat 30 are in the engaged state all the time through the cooperation limited position of guide pin 70 and spacing groove 22 in the spacing guide pin hole 24, and shelter from the spacing groove 22 of cam 20 through motor frame 40, can block spacing guide pin 70 and deviate from, ensure that cam 20 can not break away from, avoid influence focusing such as drop, damage to improve the security.

In one embodiment, the number of guide pins 80, straight slots 21 and diagonal slots 31 is three.

Wherein, lead in the nail 80 penetrates straight flute 21 and chute 31 simultaneously with both sliding fit, quantity is three, and three groups and hoop equipartitions altogether can make the structure more stable. The number or the position can be adjusted according to the actual requirement.

In one embodiment, the end of the connecting base 30 away from the cam 20 is further provided with a threaded portion 33 for externally connecting the camera.

Wherein, one end of the connecting seat 30 far away from the cam 20 is further provided with a thread part 33 for externally connecting a camera, which is convenient for the connection of external equipment.

In one embodiment, the connecting base 30 is further provided with a through hole passing along the axis.

Wherein, the connecting base 30 is provided with a through hole penetrating along the axis for the camera and the lens 10 to cooperate for shooting.

In one embodiment, the threaded portion 33 is a C-port.

The threaded portion 33 is a conventional C interface, that is, a standard M25.4 × 0.5-6g interface is adopted, and the distance from the bearing surface 32 to the designed imaging surface can be adjusted to 17.526mm, so that the use of the existing C and CS base interface cameras commonly used in the market is met, and the universal camera has universality.

During assembly, the lens 10, the cam 20 and the connecting seat 30 are sequentially sleeved, the guide pin 80 is assembled after the guide pin hole 11 is aligned with the inclined groove 31, in view of the fact that the cam 20 possibly shields the guide pin hole 11, the cam 10 can be moved to expose the guide pin hole 11 according to actual conditions during the assembly of the guide pin 80 and then assembled, the cam 20 is rotated to the correct direction (namely, the guide pin 20 is aligned with the limiting groove 22 and the limiting guide pin hole 24) to be assembled, the guide pin 80 is embedded into the straight groove 21, then the limiting guide pin 70 penetrates through the limiting guide pin hole 24 and the limiting groove 22 to be assembled, and the cam 20 and the connecting seat 30 can be limited to only rotate relatively through the limiting groove 22 without generating axial relative displacement. When the focusing device is used, the motor 50 drives the first gear 60 and the second gear 23 to be meshed for transmission to realize the rotating motion of the cam 20, and the lens 10 can move and focus in the axial direction relative to the connecting seat 30.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples are merely illustrative of the more detailed description of the present application and are not to be construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electric focus lens comprising a lens (10), characterized in that: electronic focusing lens still includes cam (20), connecting seat (30) and power unit, camera lens (10), cam (20) and connecting seat (30) coaxial setting, just camera lens (10) local cover is located in connecting seat (30), cam (20) cover is located camera lens (10) with outside connecting seat (30), wherein:

the inner side of the side wall of the cam (20) is provided with at least one straight groove (21) parallel to the axis, the outer side of the side wall is provided with a transmission mechanism, the side wall of the cam (20) is also provided with a limiting nail guiding hole (24) along the radial direction, and the limiting nail guiding hole (24) is provided with a limiting nail guiding (70);

at least one nail guide hole (11) is formed in the outer side of the side wall of the lens (10), and a nail guide (80) is installed in the nail guide hole (11);

the side wall of the connecting seat (30) is provided with a limiting groove (22) and at least one inclined groove (31), and the limiting groove (22) is perpendicular to the axis;

the power mechanism is connected with the outer side of the side wall of the connecting seat (30) and is matched with the transmission mechanism to drive the cam (20) to rotate;

the guide pin (80) is connected with the inclined groove (31) and the straight groove (21) in a sliding mode, and pushes the lens (10) to move along the axial direction while the cam (20) rotates;

the limiting guide pin (70) is connected with the limiting groove (22) in a sliding mode, so that the cam (20) and the connecting seat (30) can rotate relatively, and the cam (20) and the connecting seat (30) can be limited to move relatively.

2. The electric focus lens of claim 1, wherein: the transmission mechanism is a second gear (23) coaxial with the cam (20).

3. The electric focus lens according to claim 2, wherein: the power mechanism comprises a motor frame (40), a motor (50) and a first gear (60), the motor frame (40) is connected with the outer side of the side wall of the connecting seat (30), the motor (50) is connected with the motor frame (40), and the first gear (60) is meshed with the second gear (23).

4. The electric focus lens according to claim 3, wherein: the motor frame (40) encloses the limiting groove (22).

5. The electric focus lens of claim 1, wherein: the number of the guide nails (80), the number of the straight grooves (21) and the number of the inclined grooves (31) are three.

6. The electric focus lens of claim 1, wherein: one end of the connecting seat (30) far away from the cam (20) is also provided with a threaded part (33) for externally connecting a camera.

7. The electric focus lens of claim 6, wherein: the connecting seat (30) is also provided with a through hole which penetrates along the axis.

8. The electric focus lens according to claim 6 or 7, wherein: the thread part (33) is a C interface.