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Lens module

A lens module and lens technology, applied in the field of photography, can solve the problems of complex structure, large volume of the lens module, unable to meet the requirements of light, thin and short camera modules, etc., and achieve the effect of facilitating the volume and reducing the mutual interference of electromagnetic force.

Pending Publication Date: 2022-02-01
SEADEC TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such an arrangement makes the entire lens module bulky and complex in structure, which cannot meet people's needs for light, thin and short camera modules.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] see Figures 1 to 3 , a lens module, the lens module includes a fixed base 1, a driving device 2, a lens bracket 3 and a lens 4;

[0039] The driving device 2 is arranged on one side of the fixing seat 1, the lens bracket 3 is sleeved in the fixing seat 1, the lens bracket 3 is provided with a through hole, and the lens 4 is installed in the through hole;

[0040] The driving device 2 includes a magnet assembly and a coil assembly. After being energized, the coil assembly cooperates with the magnet assembly to drive the lens holder 3 to move along a direction parallel to the optical axis.

[0041] Specifically, a driving device 2 is provided on one side of the fixed seat 1, and the driving device 2 includes a magnet assembly and a coil assembly. After the coil assembly is energized, a new magnetic field is generated, and the new magnetic field and the magnet assembly cooperate to drive the lens holder 3 along the direction parallel to the optical axis. The direction mo...

Embodiment 2

[0054] The arrangement of the magnet assembly and the coil assembly is not limited to the structure of embodiment one, please refer to Figure 4 , the magnet assembly includes a third magnet 24, and the coil assembly includes a second coil 25 and a third coil 26;

[0055] The third magnet 24 is arranged between the second coil 25 and the third coil 26, and the third magnet 24 is arranged on the lens holder 3;

[0056] The direction of the current passing through the second coil 25 and the third coil 26 is opposite.

[0057] For example, the N pole of the third magnet 24 is opposite to the second coil 25, and the S pole of the third magnet 24 is opposite to the third coil 26. If the second coil 25 feeds a clockwise direct current, the second coil 25 The two ends will produce magnetic poles, and the S pole of the second coil 25 is opposite to the N pole of the third magnet 24. If the third coil 26 is passed through a counterclockwise direct current, the S pole of the third coil...

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PUM

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Abstract

The invention relates to the technical field of camera shooting, in particular to a lens module. The lens module comprises a fixed seat, a driving device, a lens support and a lens; the driving device is arranged on one side of the fixing base, the lens support is sleeved with the fixing base, a through hole is formed in the lens support, and the lens is installed in the through hole; the driving device comprises a magnet assembly and a coil assembly. The coil assembly cooperates with the magnet assembly after being powered on to drive the lens support to move in the direction parallel to the optical axis. An elastic assembly is further included, the elastic assembly comprises first elastic pieces and second elastic pieces, the first elastic pieces are symmetrically arranged at the two sides of the driving device, and the first elastic pieces and the second elastic pieces are fixed to the fixing base and the lens support. A driving device is arranged at one side of the fixing base, the coil assembly generates a new magnetic field after being powered on, and electromagnetic force generated by synergistic effect of the new magnetic field and the magnet assembly drives the lens support to move in the direction parallel to the optical axis. The driving device is miniaturized, and the lens module occupies a small space, and thus, the size of the camera equipment can be reduced.

Description

technical field [0001] The invention relates to the technical field of photography, in particular to a lens module. Background technique [0002] With the rapid development of multimedia technology, digital cameras, video cameras, tablet computers and mobile phones with cameras are more and more popular among consumers. In digital cameras, video cameras and mobile phone cameras and other photographic devices, lens modules are an indispensable parts. A camera module usually includes a lens barrel, a lens mount, a lens and an image sensor. The lens is accommodated in the lens barrel, the image sensor is arranged in the lens holder, and the motor drives the lens to move for focusing. [0003] The traditional VCM shrapnel motor is usually a symmetrical 2-side drive unit, or a centrally symmetrical 4-side drive unit. However, such an arrangement makes the entire lens module bulky and has a complex structure, which cannot meet people's needs for light, thin, and small camera mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/04G03B13/34H02K33/18
CPCG02B7/04G03B13/34H02K33/18
Inventor 刘述伦夏念明胡阳辉
Owner SEADEC TECH LTD