Lens unit

Details Lens unit Lens unit

2008-08-08

2010-06-01

Hasan, Mohammed (Department: 2873)

Optical: systems and elements

Lens

With support

C359S823000

Reexamination Certificate

active

07729066

ABSTRACT:
A lens unit includes a moveable section and an elastic element. The moveable section includes a lens barrel, a lens received in the lens barrel and a magnet fixedly mounted around the lens barrel. The moveable section is configured to telescopically move along an optical axis direction of the lens. The elastic element includes an attachment portion connecting with the moveable section, a holding portion for holding the movable section, and a plurality of elastic ribs capable of being elastically deformed during the telescopic movement of the moveable section. The elastic ribs of the elastic element are configured to restrain a movement of the moveable section, whereby the moveable section can stop at a focal position when an elastic force generated by the deformation of the at least one elastic rib is equal to a force for causing the moveable section to have the telescopic movement.

REFERENCES:
patent: 6631042 (2003-10-01), Noguchi
patent: 7433136 (2008-10-01), Ichikawa et al.
patent: 2006/0181748 (2006-08-01), Makii et al.

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