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:
Mar. 12, 1991
Filed:
Mar. 09, 1990
Jay S Schildkraut, Rochester, NY (US);
Ralph H Young, Rochester, NY (US);
David J Williams, Fairport, NY (US);
Michael Scozzafava, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A photorefractive device is disclosed comprised of a first and second electrodes for establishing a potential gradient between first and second spaced locations and, interposed between the first and second electrodes, intermediate means capable of producing in a readout beam of electromagnetic radiation an image pattern corresponding to that present in a spatially intersecting writing beam of electromagnetic radiation when a potential gradient is applied to the intermediate means by said first and second electrodes. The intermediate means consists of a photorefractive layer capable of internally storing the image pattern of the writing beam created by its interference with an intersecting reference beam of electromagnetic radiation, the photorefractive layer being comprised of a homogeneous organic photoconductor containing organic noncentrosymmetric molecular dipoles capable of imparting to the photorefractive layer a second order polarization susceptibility of greater than 10.sup.-9 esu.