Photographic camera focusing device for mobile phones

A technology for cameras and mobile phones, which is applied in the field of camera focusing devices for mobile phones. It can solve the problems of increasing motor friction resistance, reducing transmission efficiency, large optical axis direction and radial size, etc., and achieves reduction in radial size, size reduction, The effect of simple structure
CN101063740AInactive Publication Date: 2007-10-31天津好福来科技发展有限公司
1 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
天津好福来科技发展有限公司
Publication Date
2007-10-31
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

This invention relates to cell phone cameral focus adjusting device, which comprises flexible circuit board, sensor, infrared filter slice, bottom socket, four coils, lens cylinder, magnetic sustain rack, six slices of magnetic iron, upper cover and two hall element, wherein this invention provides cell phone cameral focus adjusting device forms feed part composed of magnetic iron, coil and Hall element on outer cylinder to form driver part; the bottom socket inner cylinder screw seam lens, magnetic iron sustain rack and magnetic iron forms feed part; by use of Hall element outputs level connection coil current to generate magnetic force between coil and magnetic iron to keep adjusting operation for move along light axis.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a focusing device, in particular to a camera focusing device for a mobile phone which can move a lens barrel along the optical axis direction to complete an automatic focusing action. Background technique

[0002] At present, with the continuous development of mobile phone design technology and the increasing requirements of users for the diversification of mobile phone functions and the trend of miniaturization, having a camera function has become one of the basic functions of mobile phones. Focusing device with high transmission efficiency, low energy consumption, fine adjustment and small optical axis direction and radial size. The focusing device usually consists of a stepping motor and a feeding mechanism. Japanese Unexamined Patent Publication No. 2002-51524 discloses a focusing device. Fig. 1 is a partial structural sectional view of such a focusing device in the prior art. As shown in Fig. 1, the hollow stepping moto...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More