Controllable optical lens

Details Controllable optical lens Controllable optical lens

2005-03-29

2009-11-03

Dinh, Jack (Department: 2873)

Optical: systems and elements

Lens

Fluid

C359S665000, C359S900000

Reexamination Certificate

active

07612948

ABSTRACT:
A controllable optical lens system, comprises a chamber housing first and second fluids, the interface between the fluids defining a lens surface. An electrode arrangement controls the shape of the lens surface and has first and second electrodes. A parameter is determined by the system dependent on the electrical resistance through at least one of the lens fluids between the first and second electrodes. Thus, the series resistance through a lens fluid is used as a measure of meniscus position.

REFERENCES:
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patent: 6369954 (2002-04-01), Berge et al.
patent: 6806988 (2004-10-01), Onuki et al.
patent: 7245439 (2007-07-01), Kuiper et al.
patent: 2003/0006140 (2003-01-01), Vacca et al.
patent: 03069380 (2003-08-01), None
ISR, The Written Opinion of the International Searching Authority PCT/IB2005/051055.

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