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Zoom lens control device and method

A technology of reflective elements and lens groups, applied in installation, optics, instruments, etc., can solve the problems of complex structure, eccentricity of front and rear lens groups, and many components, and achieve the effect of simple structure and convenient assembly.

Inactive Publication Date: 2009-06-17
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

However, the above-mentioned zoom device that realizes zooming by changing the actual distance between the lens groups is inconvenient to assemble because of its many components and complicated structure.
In addition, since this kind of zoom is achieved by actually moving the front and rear lens frames, during the movement process, the phenomenon of relative eccentricity of the front and rear lens groups is prone to occur.

Method used

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  • Zoom lens control device and method
  • Zoom lens control device and method
  • Zoom lens control device and method

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Embodiment Construction

[0013] see figure 1 , The zoom device of the present invention includes a first lens 1 , a second lens 2 , a first reflection element 3 , a second reflection element 4 , a total reflection element 5 and an image sensing element 6 . The total reflection element 5 is located between the first lens 1 and the second lens 2, the first reflection element 3 and the second reflection element 4 are located on both sides of the total reflection element 5, from the image side to the object side, and the image sensing element 6 is located at the first 2 lenses 2 rear.

[0014] The first lens 1 includes a first lens group 12 and a first lens barrel 14, and the second lens 2 includes a second lens group 22 and a second lens barrel 24, wherein the first lens group 12 and the second lens group 22 are respectively arranged on the second Inside the first lens barrel 14 and the second lens barrel 24 .

[0015] The total reflection element 5 includes two opposite and mutually parallel first re...

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Abstract

The present invention relates to a zoom lens control device. It includes first lens group, second lens group, a total reflection element, first reflection element and second reflection element. Said invention also provides their connection mode and working principle of said zoom lens control device for implementing zooming function.

Description

【Technical field】 [0001] The present invention relates to a zooming device and method. 【Background technique】 [0002] Along with the continuous development of digital technology, digital cameras have been widely used by people, especially variable-focus digital cameras are more and more favored by consumers. [0003] Please refer to image 3 , Chinese Patent No. 01122817.2 discloses a zoom device for a zoom camera, which includes a lens barrel 61, threaded rings 62, 64, guide rings 63, 65, inner rotating body 66, rear lens frame 67, front lens frame 51, mounted on Lens group (not labeled), front guide frame 68 and zoom ring 69 etc. on the lens frame. Through the cooperation between the threaded rings 62, 64, the guide rings 63, 65 and the inner rotating body 66, the front lens frame 51 and the rear lens frame 67 are relatively moved to change the distance between the front lens group and the rear lens group on the frame. , thereby changing the optical path of the incident...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/10G02B17/02G02B5/04
Inventor 邱文赐
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD