Electrically variable focus polymer-stabilized liquid...

Details Electrically variable focus polymer-stabilized liquid... Electrically variable focus polymer-stabilized liquid...

2006-09-26

2010-02-23

Caley, Michael H (Department: 2881)

Liquid crystal cells, elements and systems

Liquid crystal optical element

Liquid crystal lenses other than for eyewear

C349S086000, C349S088000, C349S183000

Reexamination Certificate

active

07667818

ABSTRACT:
A variable focus liquid crystal lens includes a nematic liquid crystal/monomer mixture having a spatially inhomogenous polymer network structure, and an electrode for applying a substantially uniform voltage to the nematic liquid crystal/monomer mixture. The lens is created within a cell by applying a substantially uniform electric field to the nematic liquid crystal/monomer mixture within the cell, while simultaneously irradiating the nematic liquid crystal/monomer mixture using a laser beam having a shaped intensity distribution, so as to induce formation of a spatially inhomogenous polymer network structure within the cell.

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