Lens driving device, automatic focusing camera and mobile terminal device

A lens driving device and lens technology, which are applied to cameras, focusing devices, electromechanical devices, etc., can solve problems such as current consumption, and achieve the effects of reducing power consumption, preventing tilt, and simplifying circuit configuration.

Active Publication Date: 2013-06-19
NEW SHICOH MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, even after the lens support moves to a predetermined position, in order to maintain the position of the lens support, it is necessary to maintain a balance with the elastic force of the spring. Therefore, in the past, it was necessary to continuously supply power to the coil.
For this reason, in order to maintain the position of the lens support, a predetermined current is consumed

Method used

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  • Lens driving device, automatic focusing camera and mobile terminal device
  • Lens driving device, automatic focusing camera and mobile terminal device
  • Lens driving device, automatic focusing camera and mobile terminal device

Examples

Experimental program
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Effect test

Embodiment Construction

[0046] Refer to the accompanying drawings below Figure 1 to Figure 7 The first embodiment of the present invention will be described in detail. The lens driving device 1 of the first embodiment is a lens driving device for autofocus photography incorporated in a mobile phone.

[0047] The configuration of the present lens driving device 1 is, as figure 1 As shown, there are annular ring mouth 3, lens support body 7, frame 8 and front side spring 9 arranged on the front side of ring mouth 3 in the optical axis direction, base 5 and rear side spring arranged on the rear side of ring mouth 3 11. A spacer 17 of insulating material is disposed between the rear spring 11 and the collar 3 .

[0048] The ring mouth 3 is slightly quadrangular when viewed from the front side, and the inner peripheral plane is circular, such as Figure 4 As shown, including the outer peripheral wall 3a, the inner peripheral wall 3b, and the connecting wall 3c connecting the outer peripheral wall 3a...

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PUM

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Abstract

The invention aims to provide a lens driving device which, with small power consumption, is capable of preventing inclination of a lens support body, an automatic focusing camera and a mobile terminal device. In the lens driving device 1, the lens support body 7 has a crimping portion 43 for crimping a vibrating shaft 41. When a coil body 15 is powered on and the lens support body 7 is moved, certain pulse current flows through a vibration generation component 51 so as to allow vibration of the vibrating shaft 41. After the lens support body 7 is moved towards a set position, the coil body 15and the vibration generation component 51 are powered off. In this way, after the vibrating shaft 41 is crimped by the crimping portion 43, the lens support body 7 is kept at the set position.

Description

technical field [0001] The present invention relates to a lens driving device that moves a lens support body after the coil is energized, an autofocus camera equipped with the lens driving device, and a mobile terminal device with a camera function. Background technique [0002] Patent Document 1 (Patent Publication No. JP2009-271204) discloses that a coil is provided on the outer periphery of a lens support, and a magnet disposed on the lens support is provided to face the coil. The lens supporting body is elastically supported by the spring, and according to the electrification to the coil body, the electromagnetic force generated by the magnetic field of the magnet is balanced with the elastic force of the spring, and the lens supporting body moves to a predetermined position while maintaining its position. [0003] However, when the lens support moves and after it moves, according to the bias of the elastic force of the spring and the bias of the magnetic field strength ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G02B7/09G03B13/36H02K33/18
Inventor白木学多田纯一
OwnerNEW SHICOH MOTOR CO LTD