Lens module

Details Lens module Lens module

2007-05-28

2008-11-11

Hasan, Mohammed (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S696000, C359S704000, C359S824000

Reexamination Certificate

active

07450321

ABSTRACT:
A lens module including a guide rod set, a first lens barrel movably disposed on the guide rod set, at least one first lens disposed inside the first lens barrel, a first optical grating connected to the first lens barrel, a first position sensor, and a first voice coil motor is provided. The first position sensor and the first voice coil motor are disposed near the first lens barrel. The first position sensor has a first light-emitting device and a first photosensor opposite to each other, and the first grating is disposed between the first light-emitting device and the first photosensor. Further, a first coil unit of the first voice coil motor is connected to the first lens barrel. When a current is provided into the first coil unit, the first lens barrel is driven to move alone the guide rod set by the first coil unit.

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patent: 7113351 (2006-09-01), Hovanky
patent: 00225007 (1994-06-01), None
patent: 426273 (2001-03-01), None
patent: 1239432 (2005-09-01), None

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