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US 6,714,305 B2Granted
Tunable fabry-perot cavity filter and method for making and using the filter
AssigneeAgilent Technologies, Inc.
InventorCharles D. Hoke
Life of this patent
Estimating the term…
Abstract
A tunable Fabry-Perot filter, which includes a pair of opposed partially reflective surfaces, a cavity between the partially reflective surfaces, a nano-dispersion of liquid crystals disposed in the cavity, and a control unit for applying an electric field to the liquid crystals.
Claims21
A tunable Fabry-Perot tilter, comprising:
- a pair of opposed, at least partially reflective surfaces defining an optical cavity of said Fabry-perot filter;
- and
- a metal-oxide matrix having a multiplicity of holes therein in said cavity;
- a nano-dispersion of liquid crystals disposed in said holes in said metal-oxide matrix in said matrix cavity.
1 more element
A tunable Fabry-Perot filter, comprising:
- a pair of opposed, at least partially reflective, generally parallel surfaces defining a cavity of said Fabry-Perot filter;
- and
- a nano-dispersion of liquid crystals disposed in an array in a metal-oxide matrix in said cavity.
A tunable Fabry-Perot filter comprising:
- a pair of opposed, at least partially reflective, generally parallel surfaces defining a cavity therebetween;
- a metal-oxide matrix having an array of a multiplicity of holes therein in said cavity, said metal-oxide matrix being formed by placing in a mold a mixture of polymer balls and metal-oxide particles, heating the mold to drive off the polymer and fuse the metal-oxide into said matrix defining an array of generally spherical voids;
- and
- a nano-dispersion of liquid crystal material disposed in said array of voids in said metal-oxide matrix in said cavity.
1 more element
Dependencies are inferred from the claim text.