Lens module

Details Lens module Lens module

2008-06-19

2010-12-14

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Lens

With support

C359S815000, C359S820000

Reexamination Certificate

active

07852576

ABSTRACT:
A lens module includes a base, a carrier carrying a lens, two elastic members attached on the base and supporting the carrier, and a number of thermal actuators. The carrier is movable relative to the base. The thermal actuators each have a first arm and a second arm. The first and second arms are aligned in an optical axis direction of the lens and each have a first end electrically and mechanically coupled to the base and a distal end, the distal ends thereof are interconnected and attached to the carrier. The first arms are thinner than the second arms so that the first arms are capable of deflecting toward the second arms due to differential heat generated when an electrical current is passed through the first and second arms from the first ends thereof to the second ends thereof, thereby the carrier is moved.

REFERENCES:
patent: 4841358 (1989-06-01), Kammoto et al.
patent: 6754243 (2004-06-01), Missey et al.
patent: 6967785 (2005-11-01), Makii et al.
patent: 101059592 (2007-10-01), None
Li wen-jun et al., Micro-opto-electro-mechanical System and Its Application, Mcrofabrication Technology, 2001 No. 3, pp. 1-8 and 13.

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