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Lens drive device, spring member and manufacturing methods thereof

A technology of a lens driving device and a spring component, which is applied in the field of spring components, can solve problems such as difficulty in controlling the spring constant, and achieve the effects of preventing the design space from being narrowed, improving reliability, and promoting thinning

Inactive Publication Date: 2014-09-24
SANKYO SEIKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, especially for the lens driving device, as the device becomes smaller and thinner, the spring member is required to be thinner and the arm portion narrower, so the control of the spring constant is correspondingly becoming more difficult.

Method used

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  • Lens drive device, spring member and manufacturing methods thereof
  • Lens drive device, spring member and manufacturing methods thereof
  • Lens drive device, spring member and manufacturing methods thereof

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0079] The best mode for carrying out the present invention will be described below with reference to the drawings.

[0080] [Mechanical structure]

[0081] figure 1 It is a perspective view showing the external structure of the lens driving device 1 according to the embodiment of the present invention. figure 2 It is an exploded perspective view showing the mechanical structure of the lens driving device 1 according to the embodiment of the present invention.

[0082] exist figure 1 and figure 2 Among them, the lens driving device 1 has: a yoke 11, a cover 12, a sleeve 13, a first leaf spring 14, a second leaf spring 15, a wire spring 16, a magnet 17, a coil 18 (the first coil 18a and the second coil 18b ), and holder 19.

[0083] In addition, the lens barrel on which the lens is mounted is not shown. The lens driving device 1 directs the sleeve 13 toward the A direction (front side) close to the object (image-taking object) and the B direction (rear side) close to th...

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Abstract

A lens driving device, a spring component, and a method of manufacturing the device and the component can prevent a design space from being narrowed due to the solder thickness of a soldered portion, thereby promoting thinning of the device. The lens driving device (1) includes: a moving body (sleeve 13, etc.) that holds the lens and can move along the optical axis direction, a supporting body (holding member 19, etc.) that supports the moving body by means of a spring member, and a The coil (18) on the top and the magnetic drive mechanism that drives the moving body along the optical axis direction. The spring member (second leaf spring) has a plurality of electrically divided spring pieces (15A, 15B) at one position in the optical axis direction. , on the spring sheet (15A, 15B), a coil connection portion (15e) electrically connected to any one of the winding start portion and the winding end portion of the coil is formed, and the coil connection portion (15e) can be bent and moved A housing portion (13b) for housing the bent coil connection portion (15e) is provided on the body.

Description

[0001] This application is a divisional application of the invention patent application filed by the applicant on November 13, 2008, with the application number "200810176725.0" and the title "lens drive device, spring component, and manufacturing method of the device and component". technical field [0002] The invention relates to a lens driving device which drives a lens to displace along an optical axis to image an object. In addition, the present invention relates to a lens drive device that supports a movable body having a lens in a displaceable form in the optical axis direction by a spring member, a spring member having a leaf spring-shaped arm, and a method for manufacturing the same. Background technique [0003] In recent years, along with the popularization of mobile phones with cameras equipped with cameras, opportunities to use such mobile phones to photograph various subjects are increasing. For example, you may shoot a subject that is a certain distance from ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/04H02K33/18
CPCG02B7/08Y10T29/49609
Inventor 须江猛樋口大辅武居勇一古谷幸男南泽伸司
Owner SANKYO SEIKI MFG CO LTD
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