Variable lens

Details Variable lens Variable lens

2007-07-17

2007-07-17

Spector, David (Department: 2873)

Optical: systems and elements

Lens

Fluid

C359S742000

Reexamination Certificate

active

10564387

ABSTRACT:
A variable lens having an optical axis is described. The lens comprises a plurality of annuli located around the optical axis. Each annulus has respective side walls defining a chamber containing a first fluid and a second fluid in contact over a meniscus. The fluids are substantially immiscible and have different refractive indices. At least one of the annuli comprises at least one electrode for altering the configuration of the meniscus.

REFERENCES:
patent: 6288846 (2001-09-01), Stoner, Jr.
patent: 6445509 (2002-09-01), Alden
patent: 6891682 (2005-05-01), Aizenberg et al.
patent: 0 560 664 (1993-09-01), None
patent: WO 09/27448 (1998-06-01), None
patent: WO 01/22148 (2001-03-01), None
JP 10048597—“Optical Device” Inventor; Suyama Shiro.
“Variable Power Fresnel Lens and its Manufacture” JP; 3-6501(A); Jan. 14, 1991.
Patent Abstracts of Japan, 10026705 A. Jan. 17, 1998.

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