Patent ID: 7684123
Filing Date: 2010-03-23
Classification: G02B,G03B

Abstract:
1. A lens structure, comprising: a first barrel, having a first guiding-groove; a second barrel, connected to the first barrel, wherein the second barrel has a second guiding-groove; a third barrel, suitable to be disposed through the combination of the first barrel and the second barrel along an assembling axis, wherein the third barrel has a first portion and a second portion, wherein a plurality of third guiding-grooves and a plurality of fourth guiding-grooves are respectively disposed on the first portion and the second portion and parallel to the assembling axis, and the first guiding-groove and the second guiding-groove respectively encircle the first portion and the second portion about the assembling axis; a first lens module, suitable to be disposed through the first portion along the assembling axis, wherein the first lens module has a plurality of first guiding-portions, and the first guiding-portions are disposed in sliding way in the corresponding third guiding-grooves and connected in helically sliding way into the first guiding-groove; and a second lens module, suitable to be disposed through the second portion along the assembling axis, wherein the second lens module has a plurality of second guiding-portions, and the second guiding-portions are disposed in sliding way in the corresponding fourth guiding-grooves and through the second guiding-groove, when the combination of the first barrel and the second barrel rotates about the assembling axis, the matches between the first guiding-groove and the first guiding-portions and between the third guiding-grooves and the first guiding-portions move the first lens module along the assembling axis, and the matches between the second guiding-groove and the second guiding-portions and between the fourth guiding-grooves and the second guiding-portions move the second lens module along the assembling axis.