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Lens module with adjustable focus

A lens module and focusing technology, applied in installation, optics, instruments, etc., can solve the problems of large number of components, high production cost, and increased radial size

Inactive Publication Date: 2012-06-06
ASIA OPTICAL CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] First, the number of components is large, resulting in high production costs
[0014] 2. It is necessary to use the first group frame 11 for the installation of the first mirror group, and use the second group frame 12 for the installation of the second mirror group, which has the disadvantage of increasing the radial dimension and resulting in a larger overall volume

Method used

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  • Lens module with adjustable focus
  • Lens module with adjustable focus
  • Lens module with adjustable focus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The aforementioned and other technical content, features and effects of the focus-adjustable lens group and lens module of the present invention will be clearly understood in the following detailed description of a preferred embodiment with accompanying drawings.

[0046] Such as image 3 , 4 As shown, the focusable lens group and lens module of the present invention are used to be installed on optical imaging equipment (not shown in the figure, such as digital cameras, projectors) to perform focusing functions. The aforementioned focusing includes zooming , focusing (focusing), the preferred embodiment includes a first lens 20 , a second lens 30 , a plurality of guide blocks 40 , a plurality of linkages 50 , a sleeve 60 , and an adjustment barrel 70 .

[0047] The first lens 20 is a lens made by glass molding or plastic injection, including a first mirror 21 and a second mirror 22 intersecting the axis II and opposite to each other, connecting the first mirror 21 and ...

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PUM

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Abstract

The invention relates to a lens head module with adjustable lens, comprising a first lens, a second lens, a plurality of guide blocks, a sleeve, a plurality of linkage pieces and a regulating sleeve. The first lens is provided with a plurality of actuating curved surfaces facing towards the first lens from the second lens; the second lens is provided with a plurality of driving rods which are arranged on the third lens and contact with the actuating curved surface. The guide blocks are respectively fixed and arranged on the first lens. The sleeve is sheathed outside the first lens and the second lens and is provided with a plurality of guide slots for the guide blocks to be placed in and a plurality of long-shaped holes. The linkage piece passes through the long strip-shaped holes and is fixed on the second lens. The regulating sleeve is sheathed outside the sleeve and is provided with a plurality of driving slots for the linkage pieces to be placed in. Therefore, the distance between the first and the second lenses can be altered to produce the focus effect only by rotating the regulating sleeve.

Description

technical field [0001] The invention relates to an optical equipment assembly, in particular to an adjustable focus lens group and lens module. Background technique [0002] Such as figure 1 , 2 As shown, the focusing device 10 generally installed on the lens of an optical imaging device (such as a camera, a projector) has the functions of zooming and focusing. The first group frame 11, the second group frame 12, the fixed cylinder 13 sleeved outside the first group frame 11 and the second group frame 12, the first cam cylinder 14 and the first cam cylinder 14 sleeved outside the fixed cylinder 13 respectively. The second cam barrel 15, three first driving bolts 16, and three second driving bolts 17. [0003] The first group frame 11 is formed with a transparent mirror chamber 111 along the axis I for mounting and fixing the first mirror group (not shown), and three radial screw holes 112 are arranged at equal angles. [0004] The second group frame 12 is formed with a t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/02G02B7/04
Inventor 李祖孟郭惠娟
Owner ASIA OPTICAL CO INC