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Thin zoomer lens capable of increasing zooming stroke

A technology of telescopic lens and zoom stroke, which is applied in the field of lens, can solve the problems of increasing the total height of the cam barrel, etc., and achieve the effect of increasing the zoom stroke

Active Publication Date: 2013-10-23
ASIA OPTICAL CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a telescopic lens that can only increase the total height of the cam cylinder when the maximum zoom stroke needs to be increased in the prior art, and to provide an enlarged zoom lens that does not increase the overall height. Telescopic lens with thinner stroke

Method used

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  • Thin zoomer lens capable of increasing zooming stroke
  • Thin zoomer lens capable of increasing zooming stroke
  • Thin zoomer lens capable of increasing zooming stroke

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Embodiment Construction

[0036] The foregoing and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the two preferred embodiments in conjunction with the accompanying drawings.

[0037] Before presenting the detailed description, it is to be noted that in the following description, similar components are denoted by the same numerals.

[0038] see Figure 4 , 5 , which is the first preferred embodiment of the thin telescopic lens capable of increasing the zoom stroke of the present invention. The thin telescopic lens capable of increasing the zoom stroke can be telescopically zoomed along the axial direction X, and includes: a base barrel 10, a first The moving combination 20 , the second moving combination 30 , the rotary drum 40 , the driving combination 50 , and the driven combination 60 .

[0039] like Image 6 As shown, the base cylinder 10 has a cylinder wall 11, a plurality of first straight tracks 12 ar...

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Abstract

The invention relates to a thin zoomer lens capable of increasing the zooming stroke. The thin zoomer lens comprises a base drum, a first moving combination, a second moving combination, a swing drum, a driving combination and a driven combination, wherein the first moving combination is arranged in the base drum and provided with a first straight-in drum, a first cam drum and a first lens group, the second moving combination is arranged in the base drum and provided with a second straight-in drum, a second cam drum and a second lens group, the swing drum is sleeved outside the base drum, the first and second cam drums are glidingly connected in an axial direction and move in the axial direction simultaneously, the driving combination and the driven combination respectively and independently drive the first and second moving combinations to enable the first and second straight-in drums to move respectively and independently in the axial direction, so that the zooming stroke between the first and second lens groups can be increased.

Description

technical field [0001] The present invention relates to a lens, in particular to a thin telescopic lens that can increase the zooming stroke. Background technique [0002] like figure 1 , 2 , 3, it is a known telescopic lens that can zoom along an axis X, the telescopic lens includes a base barrel 1, a revolving barrel 2 rotatably sleeved on the outside of the base barrel 1, a The cam cylinder 3 rotatably arranged in the base cylinder 1, the first straight cylinder 4 slidably connected to the base cylinder 1 along the axial direction X and synchronously connected to the cam cylinder 3 along the axial direction X , The second straight cylinder 5 which is slidably connected to the base cylinder 1 along the axial direction X and is synchronously connected to the cam cylinder 3 along the axial direction X, and is slidably connected to the first cylinder along the axial direction X. The first mirror group 6 of the straight forward barrel 4 and the second mirror group 7 slidabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/10G03B13/32G03B17/04
Inventor 薛春育黄敦揆林俊悯
Owner ASIA OPTICAL CO INC
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