Patent ID: 7746580

Claim:
A zoom lens module, comprising: a barrel; a first lens received in the barrel; a holder engaging with the barrel, the holder and the barrel cooperatively forming an accommodating room therebetween, the holder comprising a first dowel pin; a shaft formed in the holder; and a lens assembly positioned in the accommodating room, the lens assembly having a mounting plate, and a plurality of second lenses formed on the mounting plate, the mounting plate defining a shaft hole at a central portion thereof, and a plurality of first positioning holes around the shaft hole, the first positioning holes corresponding to the respective second lenses, and the shaft extending through the shaft hole, the second lenses being integrally formed with the mounting plate, each of the second lenses having a distinct focal length, and the lens assembly being rotatable around the shaft in such a manner that each of the second lenses is selectively positionable in optical alignment with the first lens, wherein the first dowel pin is configured for engaging in each of the first positioning holes according to the selective positioning of each of the second lenses.