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Lens driving device and manufacturing process thereof

A lens driving device and lens technology, applied in the field of cameras, can solve problems such as low production efficiency, high production cost, and reduced service life of suspension wire 3

Active Publication Date: 2021-09-10
NINGBO JCT ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because in the above structure, the four suspension wires 3 need to support the entire drive base 51, magnet 71, lens carrier 61 and lens, the load is too large, it is difficult to meet the high reliability requirements, and a rigid structure is formed between the suspension wires 3 and the base 4. After the connection, the performance is easy to change after the reliability. When the lens driver falls, the hard-connected end of the suspension wire 3 will firmly fix the suspension wire to the bottom of the base 4, and the soft-connected end of the suspension wire 3 will follow the upper spring 1 to move up and down Move, that is, the suspension wire 3 will be stretched to a certain extent, causing relatively serious damage to the suspension wire 3, therefore, greatly reducing the service life of the suspension wire 3 and the service life of the lens drive device; the magnet 71 is installed with the drive seat Within 51, it is easy to generate magnetic field interference with adjacent motors, causing the lens to shift; and this manufacturing process requires high-precision tools to support it to ensure its center positioning. The requirements for tools are high, and the production cost Higher, lower production efficiency

Method used

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  • Lens driving device and manufacturing process thereof
  • Lens driving device and manufacturing process thereof
  • Lens driving device and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] see Figure 1-4 , figure 1 It is a structural exploded schematic diagram of a lens driving device of the present invention; figure 2 It is a schematic diagram and a partial enlarged view of the suspension wire working state of a lens driving device of the present invention; image 3 It is a structural schematic diagram of an anti-shake device of a lens driving device according to the present invention; Figure 4 It is a structural schematic diagram of an autofocus device of a lens driving device of the present invention; Figure 1-4 As shown, the anti-shake device 6 is arranged in the autofocus device 5, and the autofocus device 5 includes a driving seat 51. The driving seat 51 is arranged above the base 4, and the outer wall of the driving seat 51 is provided with a ring mounting groove, and the first coil 521 is clamped in the installation groove, the first coil 521 is an OIS coil; the driving base 51 is provided with a second support column 511; wherein, the ant...

Embodiment 2

[0065] see Figure 1-4 , figure 1 It is a structural exploded schematic diagram of a lens driving device of the present invention; figure 2 It is a schematic diagram and a partial enlarged view of the suspension wire working state of a lens driving device of the present invention; image 3 It is a schematic structural diagram of an anti-shake device of a lens driving device of the present invention; Figure 4 It is a structural schematic diagram of an automatic focusing device of a lens driving device of the present invention; such as Figure 1-4 As shown, the anti-shake device 6 is arranged in the auto-focusing device 5, and the auto-focusing device 5 includes a driving seat 51, the driving seat 51 is arranged above the base 4, and the outer side wall of the driving seat 51 is provided with a ring installation groove, the first coil 521 is clamped in the installation slot, the first coil 521 is an OIS coil; the driving seat 51 is provided with a second supporting column 51...

Embodiment 3

[0070] see Figure 1-2 , figure 1 It is a schematic exploded view of the structure of a lens driving device of the present invention; figure 2 It is a schematic diagram and a partial enlarged view of the working state of the suspension wire of a lens driving device of the present invention. like Figure 1-2 As shown, a lens driving device includes seven main parts: an outer cover 7, an upper spring 1, an automatic focusing device 5, an anti-shake device 6, a lower spring 2, a suspension wire 3 and a base 4, and the base 4 serves as the lens driving device. The carrier plays the role of carrying the components required by the driving device. The outer cover 7 is clamped with the base 4 to realize the sealing between the outer cover 7 and the base 4, and play a certain role in limiting the components in the lens driving device. At the same time, it has a certain protective effect to prevent the internal components from falling off or even being damaged after the lens drivin...

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PUM

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Abstract

The invention relates to a lens driving device. The device comprises an anti-shake device used for preventing a camera from deviating, a base and an outer cover connected with the base in a clamped mode, the anti-shake device comprises a lens carrier, the lens carrier is of an annular structure and is arranged on the base, a plurality of bosses are arranged on the outer side wall of the lens carrier, the bosses are arranged on the outer side wall of the lens carrier, and the same number of magnets are correspondingly arranged on the inner side wall of the outer cover; the magnets are arranged on the inner side wall of the outer cover, so that the magnets are prevented from being arranged in a driving seat, the influence of the external magnets or motors on the camera is reduced, and the camera is prevented from deviating; OIS coils are distributed at the upper part of an AF coil, and the OIS coils are inserted into the bosses of the lens carrier, so that all the coils act on a unified magnet, the structure is more excellent, and the magnetic interference resistance is more prominent; and the automatic focusing device and the anti-shake device are perfectly combined together, so that the lens driving device is simple in structure and has good AF and OIS functions.

Description

technical field [0001] The invention relates to the technical field of cameras, in particular to a lens driving device and a manufacturing process thereof. Background technique [0002] In the prior art, such as Figure 9-11 As shown, the base 4, the lower elastic sheet 2, the driving seat 51, the lens carrier 61, the upper elastic sheet 1 and the outer cover 7 are arranged in order from bottom to top, a plurality of metal terminals 44 are arranged at the bottom of the base 4, and the OIS coil is fixedly arranged on the base 4 The top surface of the lower elastic sheet 2 is arranged on the OIS coil, the driving seat 51 is fixedly arranged on the top surface of the lower elastic sheet 2, the lens carrier 61 is arranged in the driving seat 51, and the outer side wall of the lens carrier 61 is wound with four groups of AF coils, magnets 71 is arranged between the driving seat 51 and the lens carrier 61, one magnet 71 for one AF coil, the upper elastic piece 1 is arranged on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/09G03B13/36G03B5/00G02B27/64
CPCG02B7/09G03B13/36G03B5/00G02B27/646
Inventor 冯东辉黄曙徐晓翔
Owner NINGBO JCT ELECTRONICS