Multi-axis translation module used by lens motor

Abstract

The present invention discloses a multi-axis translation module used for a lens motor, comprising: a frame, a bearing seat, an AF spring, a base, and an OIS spring; the frame is installed on the base through four OIS springs, and the OIS springs are used for elastic connection; the frame is suspended and installed in the base; the frame is loaded with the bearing seat through four AF springs, and the bearing seat is suspended and installed in the frame. The purpose of the present invention is to solve the problem that the lens protrudes from the back of the mobile phone after the telephoto lens is turned on, and further provide a multi-axis translation module to realize the inverted placement of the telephoto lens and reduce the thickness of the mobile phone. The problem that the active part of the lens is easy to rotate along the Z axis is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mobile phone lenses, and in particular to a multi-axis translation module used in a lens motor. Background Art

[0002] The lenses used in mobile phones are gradually adding optical zoom technology to achieve the function of telephoto lenses. The current market still uses physical optical zoom rather than digital zoom functions that sacrifice resolution. The telephoto lens is longer than the general traditional wide-angle lens. If the current mobile phone lens is placed vertically, the mobile phone lens will protrude a lot from the shell surface, resulting in an inconsistent appearance and causing damage to the camera.

[0003] In order to achieve the function of autofocus by allowing the lens motor to translate along the Y axis, the existing technology uses a spring wire to suspend the movable part of the lens and then translate along two axes. The OIS architecture on the market only turns the lens upside down. Because the spring wire is an isotropic wire, the K value of the spring wire in any direction on the XY plane is the same. If the thrust of the optical image stabilization (OIS) or the optical autofocus (AF) is uneven or the placement is biased, it is easy to cause the movable part of the lens to rotate along the Z axis, and this rotation cannot be compensated by OIS. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the movable part of the lens is prone to rotate along the Z axis, and further provide a multi-axis translation module to add a movable platform between the base and the lens carrier frame to improve the problem that the movable part of the lens is prone to rotate along the Z axis.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A multi-axis translation module used in a lens motor, comprising: a frame, a bearing seat, an AF spring, a base, and an OIS spring;

[0007] The frame is installed on the base through four OIS reeds, and the OIS reeds are used for elastic connection; the frame is suspended and installed in the base; the frame is loaded with a bearing seat through four AF reeds, and the bearing seat is suspended and installed in the frame.

[0008] The preferred technical solution is that the supporting seat is used to support the lens.

[0009] The preferred technical solution is that the AF spring is used to limit the movement of the bearing seat in the Y-axis direction.

[0010] The preferred technical solution is that the OIS spring is used to limit the movement of the bearing seat in the X-axis direction.

[0011] The preferred technical solution is that the AF reed adopts an elongated wave bending structure, and the lengths of the two middle waves are greater than the lengths of the waves on the left and right sides.

[0012] The preferred technical solution is that the OIS reed adopts an elongated wave-bent structure.

[0013] The preferred technical solution is to combine the AF reed and the OIS reed into a special-shaped reed, the first connecting end of which is fixedly connected to the bearing seat; the second connecting end is fixedly connected to the frame; and the third connecting end is fixedly connected to the base.

[0014] The advantages of the present invention are: simplifying the function of the movable platform, a layer of movable platform can only move in one direction with the corresponding spring; in order to meet the movement in two-axis directions, an additional layer of movable platform is added between the base and the lens bearing seat. The problem that the movable part of the lens is easy to rotate along the Z axis is improved. The bearing seat and the frame are connected with AF springs, and the bearing seat can only move in one direction; the base and the frame are connected with OIS springs in another direction, and the frame can only move in one direction and not in the same direction as the bearing seat. The AF spring and the OIS spring can also be designed as an integrated structure with good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the combination of the bearing seat and the frame of the present invention.

[0016] Figure 2 It is a schematic diagram of the connection between the bearing seat and the AF spring of the present invention.

[0017] Figure 3 It is a schematic diagram of an AF reed of the present invention.

[0018] Figure 4 It is a schematic diagram of the base and frame combination of the present invention.

[0019] Figure 5 It is a schematic diagram of the connection between the frame and the OIS reed of the present invention.

[0020] Figure 6 Schematic diagram of the OIS reed of the present invention.

[0021] Figure 7 It is a schematic diagram of the base, frame and bearing seat of the present invention after being assembled.

[0022] Figure 8 It is a schematic diagram of the special-shaped reed after optimization of the AF reed and the OIS reed of the present invention. DETAILED DESCRIPTION

[0023] The following is attached to the instruction manual Figure 1-8 The present invention is described in further detail.

[0024] A multi-axis translation module used in a lens motor comprises: a frame 1, a bearing seat 2, an AF spring 3, a base 4, and an OIS spring 5;

[0025] The frame 1 is mounted on the base 4 through four OIS springs 5, and the OIS springs 5 ​​are elastically connected to realize the frame 1 being suspended and installed in the base 4;

[0026] The frame 1 is loaded with the bearing seat 2 via four AF springs 3 , so that the bearing seat 2 is suspended and installed in the frame 1 .

[0027] The supporting seat 2 is used for supporting the lens.

[0028] The AF spring 3 is used to limit the movement of the bearing seat 2 in the Y-axis direction.

[0029] The OIS spring 5 is used to limit the movement of the bearing seat 2 in the X-axis direction.

[0030] The AF reed 3 adopts an elongated wave-bending structure, and the lengths of the two middle waves are greater than the lengths of the waves on the left and right sides.

[0031] The OIS reed 5 adopts an elongated wave-bent structure.

[0032] The AF reed 3 and the OIS reed 5 are combined into a special-shaped reed, the first connecting end 6 of the special-shaped reed is fixedly connected to the bearing seat 2; the second connecting end 7 is fixedly connected to the frame 1; and the third connecting end 8 is fixedly connected to the base 4.

Claims

1. A multi-axis translation module for a lens motor, characterized in that: include: Frame, bearing seat, AF reed, base, OIS reed; The frame is mounted on the base through four OIS reeds, using OIS reed elastic connection; Realize the hanging installation of the frame in the base; The frame is loaded with a bearing seat through four AF springs, so that the bearing seat is suspended and installed in the frame; The bearing seat is used for bearing the lens; The AF spring is used to limit the movement of the bearing seat in the Y-axis direction.

2. The multi-axis translation module used in a lens motor according to claim 1, characterized in that: The OIS spring is used to limit the movement of the bearing seat in the X-axis direction.

3. The multi-axis translation module used in a lens motor according to claim 1, characterized in that: The AF reed adopts an elongated wave bending structure, and the length of the two waves in the middle is greater than the length of the waves on the left and right sides.

4. The multi-axis translation module for a lens motor according to claim 1, characterized in that: The OIS reed adopts an elongated wave-bent structure.

5. The multi-axis translation module used in a lens motor according to claim 1, characterized in that: The AF reed and the OIS reed are combined into a special-shaped reed, and the first connecting end of the special-shaped reed is fixedly connected to the bearing seat; The second connection end is fixedly connected to the frame; and the third connection end is fixedly connected to the base.

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