Apparatus for driving a lens by electromagnetic force

Details Apparatus for driving a lens by electromagnetic force Apparatus for driving a lens by electromagnetic force

2011-03-01

2011-03-01

Ben, Loha (Department: 2873)

Optical: systems and elements

Lens

With support

C359S814000, C359S694000, C396S133000

Reexamination Certificate

active

07898753

ABSTRACT:
An apparatus for driving a lens by electromagnetic driving force includes a frame, a barrel, a lens holder, a lens, a kicker, electromagnets and a resilient element. The barrel rotably mounted in the frame includes a first linkage structure. The lens holder includes a second linkage structure and is mounted on the barrel through the first and second linkage structures. The lens is coupled into the lens holder, and the kicker is mounted on an external wall of the barrel, and the electromagnets are mounted at the frame and the kicker respectively. The resilient element is connected to the barrel and the frame. The barrel can be pushed by a repulsion or attraction of a magnetic field produced by electrically conducting the electromagnets, and the first and second linking structures drive the lens holder to move from a first position to a second position.

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