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A lens driving device

A lens driving device and lens technology, applied in electromechanical devices, installation, optics, etc., can solve problems such as shaking and image blurring, and achieve the effects of reducing the occupied area, improving the yield, and having a reasonable and compact structure

Active Publication Date: 2016-03-30
JINLONG MACHINERY & ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the lens support moves along the optical axis, it is easily shaken by the radial force, resulting in blurred images captured by the lens.

Method used

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  • A lens driving device
  • A lens driving device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Figure 1 to Figure 5 A first embodiment of the invention is shown, in which figure 1 It is a schematic diagram of a three-dimensional structure of the first structure of the present invention; figure 2 for figure 1 A schematic diagram of the three-dimensional structure of the voice coil motor when viewed from another angle; image 3 for figure 1 A cross-sectional view of the voice coil motor shown; Figure 4 for figure 1 An exploded view of the voice coil motor shown; Figure 5 for figure 1 A schematic diagram of the three-dimensional structure of the upper shrapnel in the voice coil motor shown.

[0034] This embodiment is a lens driving device, see Figure 1 to Figure 5 , including a housing 1, and a lens carrier 2, a magnet assembly 3, a coil 4, an upper elastic piece 5, a lower elastic piece 6, an upper elastic piece bracket 7 and a lower insulating gasket 8 arranged in the housing 1; the lens carrier 2 is set Between the upper elastic piece 5 and the low...

Embodiment 2

[0045] Figure 6 and Figure 7 A second embodiment of the invention is shown in which, Figure 6 It is a cross-sectional view of the second structure of the present invention; Figure 7 for Figure 6 A schematic diagram of a three-dimensional structure of the magnet assembly shown.

[0046] This embodiment is basically the same as Embodiment 1, the difference is that: the magnet assembly 3 includes a plurality of magnets 31 arranged in a ring on the upper and lower layers, and the plurality of magnets 31 in the same layer are arranged in a ring, and the magnets in the same layer are arranged in a ring. There is a gap between adjacent two magnets 31; the upper end of each magnet 31 in the upper layer magnet 31 is an S pole, and the lower end is an N pole; the upper end of each magnet 31 of the lower floor is an N pole, and the lower end is an S pole; The coil 4 includes an upper coil and a lower coil, the upper coil is arranged directly above the lower coil, and there is a ...

Embodiment 3

[0049] Figure 8 It is a schematic diagram of the three-dimensional structure of the upper elastic piece in the third structure of the present invention, showing the third structure of the present invention

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Abstract

The invention discloses a lens driving device, which comprises a casing, and a lens carrier, a magnet assembly, a coil, an upper elastic piece and a lower elastic piece arranged in the casing; the lens carrier is arranged between the upper elastic piece and the lower elastic piece, so The magnet assembly is arranged on the periphery of the lens carrier; the coil is arranged between the magnet assembly and the lens carrier. The structure of the present invention is relatively reasonable and compact, and no longer needs the magnetic conducting ring in the traditional lens driving device, thereby avoiding the ills of lens carrier eccentricity caused by the excessive magnetic force of the magnetic conducting ring, not only simplifying the manufacturing process, but also effectively reducing the manufacturing cost. cost.

Description

technical field [0001] The invention relates to a lens driving device, in particular to a lens driving device applied to a camera, a video camera, or a mobile phone with a camera function to drive the lens to move to adjust the focal length. Background technique [0002] The driving device for adjusting the focal length of a traditional camera usually includes stepping motors, gears, cams and connecting rods. For example, Chinese patent document CN2938165Y discloses a lens structure with a stable autofocus function, including a housing, a motor, a first A gear, a second gear, a lens module and an elastic component, the motor is arranged in the casing, the first gear is arranged in the casing and fixed on the axis of the motor, the second gear is arranged in the casing In the body and vertically meshed with the first gear, the upper surface of the second gear has a spiral slope, the lens module is arranged in the housing, and the lens module has a spiral slope with the second...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/04H02K33/18G03B30/00
Inventor 金绍平方绍斌夏太红金士雷黄晓敏颜石磊
Owner JINLONG MACHINERY & ELECTRONICS CO LTD
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