Lens module

Details Lens module Lens module

2007-05-11

2008-07-29

Ben, Loha (Department: 2873)

Optical: systems and elements

Lens

With support

C359S823000, C359S814000, C359S694000, C310S012060

Reexamination Certificate

active

07405892

ABSTRACT:
A lens module including a base, a sleeve, a lens, a magnetic permeable column, a coil supporter, a coil, and a magnet set is provided. A bottom of the base has a plurality of bumps. The sleeve is rotatably disposed on the bumps. The lens is disposed in the sleeve, and the magnetic permeable column is disposed beside the sleeve. The coil is disposed between two holes of the coil supporter. The magnetic permeable column is disposed through the holes and the coil. The magnet set is disposed beside the coil. The sleeve has a plurality of step portions and each bump contacts the corresponding step portion. When a current is provided to the coil, the electromagnetic force produced between the coil and the magnet set moves the coil along the magnetic permeable column, to push the coil supporter and accordingly rotate the sleeve coupled with the coil supporter.

REFERENCES:
patent: 4519691 (1985-05-01), Yamada et al.
patent: 4684233 (1987-08-01), Kodaira et al.
patent: 4992684 (1991-02-01), Matsui
patent: 5121016 (1992-06-01), Wachi
patent: 5229669 (1993-07-01), Takei
patent: 5471100 (1995-11-01), Sakamoto et al.
patent: 5706272 (1998-01-01), Ezawa
patent: 5939804 (1999-08-01), Nakao et al.
patent: 83100445 (1994-01-01), None

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