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US 4,053,207 AGranted
Electro-optic devices
AssigneeU.S. Philips Corporation
InventorsEdward T. Keve, Keith L. Bye
Life of this patent
Estimating the term…
Abstract
An electro-optic device having a platelet of PLZT material, the birefringence of which depends on an electric field. The thickness of the platelet preferably is smaller than the thickness of one grain. As a result of this the sensitivity is large and this permits a low operating voltage in the device.
Claims6
An electro-optic device including a platelet of a ferroelectric ceramic material having an electric field-dependent birefringence value and the individual grains of which have a domain structure, in which the thickness of the platelet is smaller than twice the average grain diameter of the material.
Dependencies are inferred from the claim text.