Lens drive device, automatic focusing camera and mobile terminal device with camera

A technology of lens driving device and driving mechanism, which is applied in the direction of cameras, focusing devices, electromechanical devices, etc., and can solve problems such as difficulties in miniaturization

Active Publication Date: 2014-02-19
NEW SHICOH MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that further miniaturization is difficult

Method used

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  • Lens drive device, automatic focusing camera and mobile terminal device with camera
  • Lens drive device, automatic focusing camera and mobile terminal device with camera
  • Lens drive device, automatic focusing camera and mobile terminal device with camera

Examples

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Embodiment Construction

[0040] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0041] The lens driving device 1 in this embodiment is a lens driving device for an auto-focus camera that can be incorporated in a mobile terminal device with a camera such as a mobile phone.

[0042] Such as figure 1 As shown, the lens driving device 1 includes: a lens support body 5, which supports the lens (not shown) on the inner periphery; a ring mouth 3, which is used as a fixed body to freely move the lens support body 5 on the inner periphery; a frame 7 , which is arranged on the front side of the optical axis direction (Z direction) of the ring mouth 3 ;

[0043] A front side spring 9 is arranged inside the frame 7, and the front side spring 9 includes: an outer peripheral part; an inner peripheral part arranged on the inner peripheral side of the outer peripheral part; and a wrist connecting the outer peripheral part and the inner peripheral part. departmen...

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Abstract

The invention is to provide a lens drive device, the driving force of which is relatively large and which can be further miniaturized, an automatic focusing camera and a mobile terminal device with the camera. The outer circumference side walls of a ring port of the lens drive device are respectively provided with a cutting portion at the central portion of each edge portion. A driving mechanism comprises magnets for second driving, wherein the magnets for the second driving are arranged in the cutting portions and are in face-to-face arrangement with coils for first driving respectively.

Description

technical field [0001] The invention relates to a lens driving device, an autofocus camera and a mobile terminal device with the camera. Background technique [0002] In a conventional lens driving device, in order to reduce the size of the device, driving magnets are arranged at the four corners of the lens driving device (for example, such a lens driving device is described in JP 2007-139810). [0003] However, if the miniaturization is further promoted, it is necessary to arrange the driving coil wound on the outer peripheral side of the lens support body and the outer peripheral side wall of the ring mouth close to each other, and the long distance between the edges of the outer peripheral side wall of the ring mouth It is not possible to configure the drive magnet. For this reason, the opposing length (area) of the driving magnet and the driving coil is further reduced, and the driving force becomes insufficient. Therefore, there is a problem that further miniaturizat...

Claims

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Application Information

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IPC IPC(8): G02B7/09G03B13/36H02K33/18
Inventor白木学市川和広
OwnerNEW SHICOH MOTOR CO LTD