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US 5,619,365 AGranted
Elecronically tunable optical periodic surface filters with an alterable resonant frequency
AssigneeTexas Instruments Incorporated
InventorsCharles M. Rhoads, Gary Frazier, Richard G. Hoffman, II, Oren B. Kesler, Daniel J. Ryan
Life of this patent
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Abstract
Generally and in one form of the invention this is a periodic surface filter comprising at least one element at a surface of the filter and electronic controls to change the optical characteristics of the element. The surface filter comprising and electronically tunable electro-optic material to alter the resonant frequency of the element.
Claims13
A tunable surface filter comprising:
- a. at least one element at a surface of said filter;
- and
- b. an electronically tunable electro-optic material to alter the resonant frequency of said element.
Dependencies are inferred from the claim text.