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Micro-lens multistage type focusing structure

A miniature lens, multi-stage technology, used in installation, optics, instruments, etc., can solve the problems of no power saving, high power consumption, and large overall volume.

Inactive Publication Date: 2008-07-23
TDK TAIWAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the coil 16 is energized with current, the coil 16 generates thrust with the magnet 13 due to the current magnetic field, and the lens holder 14 is pushed forward and backward by the shrapnel 17, and the overall volume of this structure is relatively large, and the lens is adjusted when the focal length is adjusted. , no power saving function, resulting in excessive power consumption

Method used

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  • Micro-lens multistage type focusing structure
  • Micro-lens multistage type focusing structure
  • Micro-lens multistage type focusing structure

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Embodiment Construction

[0035] As shown in Figure 2, it is a three-dimensional exploded view of the multi-stage focusing structure of the micro-lens of the present invention. The focusing drive structure 20 of the present invention includes a base 21, several magnetic conductive components 22, several magnetic parts 23, and a frame 24 . A front cover 25 , a bottom cover 26 and a housing 27 . Wherein the base 21 has several magnetic components 28, a coil 29 and a lens 30, the base 21 is arranged at the center of the frame 24, the lens 30 is installed at the center of the base 21, and the coil 29 is wrapped around the Around the base 21 , the magnetic component 28 is disposed on the frame 24 and located at the front and rear of the base 21 .

[0036] Wherein the magnetic permeable component 22 is arranged on the front cover 25 and the bottom cover 26, and is positioned at the front and rear of the magnetic component 28, and keeps a fixed distance that cannot attract and repel each other, and the magnet...

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Abstract

The invention discloses a micro lens multi-section focusing structure, which comprises a base provided with a plurality of magnetic elements and a coil, wherein the coil covers the base, the magnetic elements are arranged at the front and back of the base, a plurality of magnetic conductive elements are arranged at the front and back of the magnetic elements with a fixed distance, and a plurality of magnetic elements are arranged around the coil with a fixed distance. When the coil is powered to generate a magnetic field, the coil is excluded with magnetic portions to move the base front and back and absorb the magnetic elements and the magnetic conductive elements to realize focus effect. The power supply can be turned off after focusing process to save power and reduce power consumption.

Description

technical field [0001] The invention relates to a micro-lens multi-stage focusing structure, in particular to an auto-focusing driving structure of a micro-lens, which has a low-power multi-stage focusing structure. Background technique [0002] With the progress of science and technology, the volume of digital cameras has been reduced quite small, and most of the current mobile phones have the functions of digital cameras. These are all due to the miniaturization of camera lenses, and there are many kinds of The most commonly used autofocus drive structure is the Voice Coil Motor (VCM). Because of its small size, low power consumption, precise actuation displacement, and low price, it is suitable as a short-distance driver for autofocus of miniature lenses. [0003] Such as figure 1 As shown, it is an exploded schematic view of the focusing structure of a known microlens using a voice coil motor, wherein the focusing driving structure includes an upper cover 10, a lower bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/04G02B7/09G03B30/00
Inventor 林文章
Owner TDK TAIWAN
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