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Automatic focus lens module

A focusing lens and automatic technology, applied in the field of automatic focusing lens modules, can solve the problems of complexity, multiple components and structures, and limit the thinning of the automatic focusing lens module, and achieve the reduction of lens movement space, simple structure, and easy assembly. Effect

Inactive Publication Date: 2013-07-03
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing auto-focus lens module has many components and complex structure, which undoubtedly increases the volume and overall length of the auto-focus lens module.
In addition, the previous auto-focus lens module generally moves the entire lens group to focus, so the lens module needs to reserve a large moving space for the lens group, which limits the further thinning of the auto-focus lens module

Method used

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0014] see Figure 1 to Figure 3 , is shown as a structural diagram of the autofocus lens module 100 of the present invention, the autofocus lens module 100 includes a substrate 10, a plurality of guides 20, a piezoelectric driver 30, an active plate 40, a Lens 50 , a lens holder 60 and an outer cover 70 .

[0015] The substrate 10 is ring-shaped and includes a first surface 11 and a second surface 12 opposite to the first surface 11 . The substrate 10 is made of hard materials, such as ceramics or resin materials. A printed circuit (not shown) for electrically connecting electronic components is disposed on the substrate 10 .

[0016] Each guiding member 20 is cylindrical and includes a first end 21 and a second end 22 separated from the first end 21 . The first end 21 is fixed on the first surface 11 of the substrate 10 , and the second end 22 is away from the ...

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Abstract

An automatic focus lens module comprises a basal plate, a plurality of guiding pieces, a piezoelectric driving piece, an active plate, a lens, a lens clamping piece, an elastic abutting piece and an outer cap. The lens clamping piece is movably connected with the guiding pieces and presses the active plate through the elastic bunting piece, and the active plate presses the piezoelectric driving piece through the active plate. A plurality of first protrusions are formed on the surface, opposite to the lens clamping piece, of the active plate, and a plurality of second protrusions are formed on the surface, opposite to the active plate, of the lens clamping piece. The first protrusions and the second protrusions are arranged along a circumference, heights of the first protrusions decrease progressively along a scheduled clockwise direction, heights of the second protrusions increase progressively along the same scheduled clockwise direction, and each first protrusion is respectively contacted with the corresponding second protrusion.

Description

technical field [0001] The invention relates to a lens module, in particular to an automatic focusing lens module. Background technique [0002] With the advancement of technology, most electronic devices have camera units, and the development trend is to be light, thin and small. The thinning of electronic equipment is mainly limited by the overall length of the lens module of the camera unit. If the lens module also has an auto-focus function, the electronic equipment also needs to reserve the space required for lens movement during focusing. [0003] However, the existing auto-focus lens module has many components and complex structure, which undoubtedly increases the volume and overall length of the auto-focus lens module. In addition, the previous auto-focus lens module generally moves the entire lens group to focus, so the lens module needs to reserve a large moving space for the lens group, which limits the further thinning of the auto-focus lens module. Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/09G03B13/36
Inventor 张仁淙
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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