Detachable prime lens and mobile phone

Abstract

The utility model belongs to the technical field of lenses, and discloses a detachable prime lens and a mobile phone. The detachable prime lens comprises a front group, a rear group, a transmission member, a rotation driving assembly and a linear driving assembly. Wherein the front group is fixedly connected with the transmission part, the transmission part can rotate around the axis of the transmission part and ascend and descend along the axis of the transmission part, the rotation driving assembly is used for driving the transmission part to rotate, and the linear driving assembly is used for driving the transmission part to ascend and descend. The front group and the rear group are arranged to be two split parts, so that when the rotary driving assembly can drive the transmission part to rotate and the linear driving assembly drives the transmission part to ascend and descend, the transmission part can drive the front group to rotate and ascend and descend. According to the detachable prime lens, the front group and the rear group are coaxial to meet shooting requirements when the detachable prime lens is in a working state, and the front group and the rear group can be separated when the detachable prime lens is in a non-working state, and the front group descends to meet the purpose of reducing the overall thickness.

Description

Technical Field

[0001] This utility model relates to the field of lens technology, and in particular to a detachable fixed-focus lens and a mobile phone. Background Technology

[0002] Most conventional fixed-focus lenses currently use a single, integrated frame structure. When this type of fixed-focus lens is used in a mobile phone, it occupies a large amount of space in the phone casing, which is not conducive to reducing the overall thickness of the phone. Utility Model Content

[0003] The purpose of this invention is to provide a detachable fixed-focus lens and mobile phone, which can effectively reduce the overall thickness of the mobile phone.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A detachable fixed-focus lens includes a front group, a rear group, a transmission component, a rotation drive assembly, and a linear drive assembly. The front group is fixedly connected to the transmission component. The transmission component is capable of rotating about its own axis to move the front group closer to or away from the rear group, and the transmission component is capable of moving up and down along its own axis to move the front group up and down. The rotation drive assembly is configured to drive the transmission component to rotate, and the linear drive assembly is configured to drive the transmission component to move up and down.

[0006] As an optional embodiment, the transmission component includes a lead screw, a rotating gear, and an adapter plate. The lead screw is provided with meshing teeth, the rotating gear is disposed on the lead screw, one end of the adapter plate is connected to the lead screw, and the front group is disposed at the other end of the adapter plate.

[0007] The rotary drive assembly includes a rotary drive member and a first gear set, the first gear set being capable of meshing with the rotating gear, and the rotary drive member being configured to drive the first gear set to rotate.

[0008] The linear drive assembly includes a linear drive element and a second gear set, the second gear set meshing with the meshing teeth, and the linear drive element being configured to drive the second gear set to rotate.

[0009] As an optional embodiment, the transmission component further includes a fastener, one end of the adapter plate is provided with a mounting hole, the lead screw passes through the mounting hole, the adapter plate is rotatable and adjustable around the lead screw, and the fastener is configured to secure the adapter plate and the lead screw after the adapter plate is rotated and adjusted.

[0010] As an alternative, the rear group is provided with a stop portion configured to limit the front group when the front group rotates toward the rear group.

[0011] As an alternative, the stop is configured as an arc with an opening facing the front group, and the inner diameter of the stop is the same as the outer diameter of the front group.

[0012] As an optional feature, the height a of the stop portion is 1mm-1.5mm; the width b of the stop portion is 1mm-1.5mm.

[0013] As an alternative, the distance c between the front group and the rear group along the axial direction of the transmission member is 0.05mm-0.2mm.

[0014] As an alternative, a VCM motor is also included, with the rear group disposed on the VCM motor, the VCM motor being configured to drive the rear group to achieve centering of the detachable fixed-focus lens.

[0015] As an optional solution, both the rotary drive and the linear drive are motors.

[0016] The mobile phone includes the detachable fixed-focus lens described in any of the above embodiments.

[0017] The beneficial effects of this utility model are:

[0018] The detachable fixed-focus lens provided by this utility model sets the front and rear groups as two separate parts, with the front group fixedly connected to the transmission component. This allows the rotation drive assembly to drive the transmission component to rotate, and the linear drive assembly to drive the transmission component to rise and fall, in turn, the transmission component can drive the front group to rotate and rise and fall. This detachable fixed-focus lens achieves the following: in the working state, the front and rear groups are coaxial to meet shooting requirements; while in the non-working state, the front and rear groups can be separated, and the front group can be lowered to reduce the overall thickness. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the detachable fixed-focus lens provided in an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of the detachable fixed-focus lens provided in this embodiment of the utility model.

[0021] In the picture:

[0022] 1. Front group; 2. Rear group; 21. Stop; 3. Transmission component; 31. Lead screw; 311. Meshing gear; 32. Rotating gear; 33. Adapter plate; 4. Rotary drive assembly; 41. Rotary drive component; 42. First gear set; 5. Linear drive assembly; 51. Linear drive component; 52. Second gear set; 6. VCM motor. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In the description of this utility model, unless otherwise expressly 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.

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 As shown, this embodiment of the present invention provides a detachable fixed-focus lens, including a front group 1, a rear group 2, a transmission component 3, a rotation drive assembly 4, and a linear drive assembly 5. The front group 1 is fixedly connected to the transmission component 3, which is capable of rotating around its own axis and moving up and down along its own axis. The rotation drive assembly 4 drives the transmission component 3 to rotate, and the linear drive assembly 5 drives the transmission component 3 to move up and down.

[0028] The detachable fixed-focus lens has a working state and a non-working state. When the detachable fixed-focus lens is in the working state, the front group 1 and the rear group 2 are coaxial, and there is a certain gap between the front group 1 and the rear group 2. When the detachable fixed-focus lens is in the non-working state, the front group 1 and the rear group 2 are not on the same axis and are offset relative to each other. The transmission member 3 drives the front group 1 to descend along the axis of the transmission member 3 to reduce the axial space.

[0029] Specifically, when the detachable fixed-focus lens switches from a non-working state to a working state, the linear drive assembly 5 first drives the transmission component 3 to rise along its own axis, so that the transmission component 3 drives the front group 1 to rise. Then, the rotation drive assembly 4 drives the transmission component 3 to rotate around its own axis, so that the transmission component 3 drives the front group 1 to rotate toward the rear group 2, making the front group 1 and the rear group 2 coaxial. When the detachable fixed-focus lens switches from a working state to a non-working state, the rotation drive assembly 4 first drives the transmission component 3 to rotate around its own axis, so that the transmission component 3 drives the front group 1 away from the rear group 2 (to prevent interference between the front group 1 and the rear group 2 when it descends). Then, the linear drive assembly 5 drives the transmission component 3 to descend along its own axis, so that the transmission component 3 drives the front group 1 to descend.

[0030] This detachable fixed-focus lens separates the front group 1 and the rear group 2 into two distinct parts. The front group 1 is fixedly connected to the transmission component 3, allowing the rotation drive assembly 4 to drive the transmission component 3 to rotate and the linear drive assembly 5 to drive the transmission component 3 to move up and down. In this configuration, the transmission component 3 can also drive the front group 1 to rotate and move up and down. This detachable fixed-focus lens achieves the following: in the working state, the front group 1 and the rear group 2 are coaxial to meet shooting requirements; in the non-working state, the front group 1 and the rear group 2 can be separated, and the front group 1 can be lowered to reduce the overall thickness.

[0031] Optionally, the transmission component 3 includes a lead screw 31, a rotating gear 32, and an adapter plate 33. The lead screw 31 is provided with meshing teeth 311 (the meshing teeth 311 include multiple protruding teeth spaced apart along the axis of the lead screw 31). The rotating gear 32 is disposed on the lead screw 31. One end of the adapter plate 33 is fixedly connected to the lead screw 31, and the front group 1 is disposed at the other end of the adapter plate 33. When the lead screw 31 rotates around its own axis or moves up and down along its own axis, it can drive the front group 1 to rotate and move up and down. The rotary drive assembly 4 includes a rotary drive component 41 and a first gear set 42. The first gear set 42 can mesh with the rotating gear 32, and the rotary drive component 41 can drive the first gear set 42 to rotate. When the lead screw 31 rises along its own axis, it also drives the rotating gear 32 to rise simultaneously, so that the first gear set 42 meshes with the rotating gear 32. The rotary drive component 41 drives the first gear set 42 to drive the rotating gear 32 to rotate, thereby realizing the rotation of the lead screw 31. The linear drive assembly 5 includes a linear drive element 51 and a second gear set 52. The second gear set 52 meshes with meshing teeth 311. The linear drive element 51 drives the second gear set 52 to move the lead screw 31 up and down. This structure realizes that the rotary drive element 41 drives the rotary gear 32 to rotate the lead screw 31, thereby driving the front group 1 to rotate, and the linear drive element 51 drives the lead screw 31 to move up and down, thereby driving the front group 1 to move up and down. The structure is simple, stable and reliable.

[0032] In this embodiment, the first gear set 42 includes a first input gear, a first output gear, and a plurality of first intermediate gears. The first input gear is disposed at the output end of the rotary drive member 41, the first output gear is used to mesh with the rotating gear 32, the plurality of first intermediate gears mesh with each other, and the first intermediate gear closer to the first input gear meshes with the first input gear, and the first intermediate gear closer to the first output gear meshes with the first output gear; the second gear set 52 includes a second input gear, a second output gear, and a plurality of second intermediate gears. The second input gear is disposed at the output end of the linear drive member 51, the second output gear is used to mesh with the meshing teeth 311 of the lead screw 31, the plurality of second intermediate gears mesh with each other, and the second intermediate gear closer to the second input gear meshes with the second input gear, and the second intermediate gear closer to the second output gear meshes with the second output gear.

[0033] Furthermore, the transmission component 3 also includes a fastener (not shown in the figure). One end of the adapter plate 33 is provided with a mounting hole, and the lead screw 31 passes through the mounting hole. The adapter plate 33 can rotate and adjust around the axis of the lead screw 31 to achieve manual and precise adjustment of the relative position between the front group 1 and the rear group 2, so that the front group 1 can be kept coaxial with the rear group 2 after rotation. After the adjustment is completed, the fastener can fasten the adapter plate 33 and the lead screw 31 to prevent the positions of the adapter plate 33 and the lead screw 31 from not changing.

[0034] Optionally, the fastener can be a screw. The adapter plate 33 is also provided with a threaded hole that communicates with the mounting hole. After the relative position between the adapter plate 33 and the lead screw 31 is adjusted, the screw is screwed into the threaded hole and abuts against the lead screw 31 to achieve the connection.

[0035] Of course, the lead screw 31 and the adapter plate 33 can also be connected by welding. The lead screw 31 and the adapter plate 33 connected by welding need to be adjusted in advance during installation so that the front group 1 and the rear group 2 are coaxial.

[0036] When the detachable fixed-focus lens is in operation, in order to facilitate the determination that the axes of the front group 1 and the rear group 2 coincide, a stop 21 is provided on the rear group 2. When the front group 1 rotates toward the rear group 2, the front group 1 comes into contact with the stop 21 to limit the front group 1, and then it can be determined that the front group 1 has rotated into place.

[0037] Optionally, the stop portion 21 is provided with an arc shape with an opening facing the front group 1, and the inner diameter of the stop portion 21 is the same as the outer diameter of the front group 1. When the front group 1 rotates towards the rear group 2, the opening can avoid the front group 1, and the inner diameter of the stop portion 21 is the same as the outer diameter of the front group 1, so that the front group 1 and the stop portion 21 can fit together to limit the front group 1.

[0038] Optionally, such as Figure 2 As shown, the height a of the stop part 21 is 1mm-1.5mm. This height design can both stop and limit the front group 1 without taking up too much space. The width b of the stop part 21 is 1mm-1.5mm. This width design can ensure structural stability.

[0039] Optionally, when the front group 1 and the rear group 2 are coaxial, the distance c between the front group 1 and the rear group 2 along the axis of the transmission member 3 is 0.05mm-0.2mm. This size design ensures that there is a certain gap between the front group 1 and the rear group 2, which can ensure that the detachable fixed-focus lens can be aligned.

[0040] Optionally, refer to Figure 1 The detachable fixed-focus lens also includes a VCM motor 6 (i.e., a voice coil motor). By mounting the rear group 2 on the VCM motor 6, the VCM motor 6 drives the rear group 2 to perform centering, enabling the detachable fixed-focus lens to be aligned. Specifically, after the front group 1 rotates to be coaxial with the rear group 2, the VCM motor 6 drives the rear group 2 to tilt and yaw, allowing the rear group 2 to complete the centering process and ensure image quality.

[0041] Optionally, both the rotary drive 41 and the linear drive 51 are drive motors.

[0042] This utility model embodiment also provides a mobile phone, which includes a housing and the aforementioned detachable fixed-focus lens. The housing has an inwardly recessed groove on the outer surface of its rear panel. The detachable fixed-focus lens, except for the front group 1 and the transmission component 3, has all other components disposed inside the housing. A portion of the lead screw 31 is located inside the housing and is rotatably connected to the housing, while the other portion of the lead screw 31 is located outside the housing. The adapter plate 33 is connected to the other portion of the lead screw 31. The front group 1 is disposed on the adapter plate 33 and is located outside the housing. When the detachable fixed-focus lens is in a non-working state, the front group 1 and the adapter plate 33 are located in the recessed groove.

[0043] By incorporating this detachable fixed-focus lens, the phone effectively reduces the thickness of the casing and improves the user experience.

[0044] 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 detachable fixed-focus lens, characterized in that, The device includes a front group (1), a rear group (2), a transmission member (3), a rotary drive assembly (4), and a linear drive assembly (5). The front group (1) is fixedly connected to the transmission member (3). The transmission member (3) is capable of rotating about its own axis to drive the front group (1) closer to or away from the rear group (2), and the transmission member (3) is capable of lifting and lowering along its own axis to drive the front group (1) to lift and lower. The rotary drive assembly (4) is configured to drive the transmission member (3) to rotate, and the linear drive assembly (5) is configured to drive the transmission member (3) to lift and lower.

2. The detachable fixed-focus lens according to claim 1, characterized in that, The transmission component (3) includes a lead screw (31), a rotating gear (32), and an adapter plate (33). The lead screw (31) is provided with meshing teeth (311), the rotating gear (32) is provided on the lead screw (31), one end of the adapter plate (33) is connected to the lead screw (31), and the front group (1) is provided at the other end of the adapter plate (33). The rotary drive assembly (4) includes a rotary drive member (41) and a first gear set (42), the first gear set (42) being capable of meshing with the rotating gear (32), and the rotary drive member (41) being configured to drive the first gear set (42) to rotate. The linear drive assembly (5) includes a linear drive member (51) and a second gear set (52), the second gear set (52) meshing with the meshing teeth (311), and the linear drive member (51) being configured to drive the second gear set (52) to rotate.

3. The detachable fixed-focus lens according to claim 2, characterized in that, The transmission component (3) also includes a fastener. One end of the adapter plate (33) is provided with a mounting hole. The lead screw (31) passes through the mounting hole. The adapter plate (33) can rotate and adjust around the lead screw (31). The fastener is configured to fasten the adapter plate (33) and the lead screw (31) after the adapter plate (33) is rotated and adjusted.

4. The detachable fixed-focus lens according to claim 1, characterized in that, The rear group (2) is provided with a stop (21) which is configured to limit the front group (1) when the front group (1) rotates toward the rear group (2).

5. The detachable fixed-focus lens according to claim 4, characterized in that, The stop portion (21) is configured to be arc-shaped with an opening facing the front group (1), and the inner diameter of the stop portion (21) is the same as the outer diameter of the front group (1).

6. The detachable fixed-focus lens according to claim 4, characterized in that, The height a of the stop part (21) is 1mm-1.5mm; the width b of the stop part (21) is 1mm-1.5mm.

7. The detachable fixed-focus lens according to claim 1, characterized in that, The distance c between the front group (1) and the rear group (2) along the axial direction of the transmission member (3) is 0.05mm-0.2mm.

8. The detachable fixed-focus lens according to claim 1, characterized in that, It also includes a VCM motor (6), the rear group (2) is disposed on the VCM motor (6), the VCM motor (6) is configured to drive the rear group (2) to achieve the centering of the detachable fixed-focus lens.

9. The detachable fixed-focus lens according to claim 2, characterized in that, Both the rotary drive (41) and the linear drive (51) are motors.

10. A mobile phone, characterized in that, Includes the detachable fixed-focus lens as described in any one of claims 1-9.

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