Variable focal length lens

Details Variable focal length lens Variable focal length lens

2006-08-24

2008-10-28

Choi, William C (Department: 2873)

Optical: systems and elements

Lens

Fluid

C359S280000

Reexamination Certificate

active

07443598

ABSTRACT:
A variable focal length lens (12) includes a central transparent elastic portion (120) having a first wall (1200) and a second wall (1202) intersecting an optical axis and a peripheral portion (122) surrounding the body. The first wall and the second wall joined with the periphery form a container (124). The container is filled with magnetic fluid (126).

REFERENCES:
patent: 5739959 (1998-04-01), Quaglia
patent: 6930838 (2005-08-01), Schachar
patent: WO 2005/119308 (2005-12-01), None

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