The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 1992
Filed:
May. 10, 1989
Falk Mikosch, Graben-Neudorf, DE;
Stanley D Smith, Edinburgh, GB;
Kernforschungszentrum Karlsruhe GmbH, Karlsruhe, DE;
Abstract
A switch matrix which comprises non-linear optical (e.g. bistable) elements each consisting of an optically active layer applied to a substrate. The surface of the substrate has a microstructure composed of pillars each of which functions as a switch element and has at least one optically active layer. The pillar structure prevents interaction due to thermal contact and diffusion of charge carriers across the optically active layer and the substrate. The lithographic-galvanic (LIGA) process described is suited to the mass production of these structured substrates my moulding plastics. Both transparent and opaque substrates with high aspect ratios and adequate stability can be advantageously manufactured in this way.