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. 03, 1992
Filed:
Apr. 01, 1991
Gilbert A Hawkins, Mendon, NY (US);
Joseph F Revelli, Rochester, NY (US);
David J Williams, Fairport, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A fully integrated electro-optic page-scanner comprises an optically transparent waveguide made from an electro-optic polymer, and an electrode structure including a linear array of electrically-addressable, spaced, parallel electrodes for selectively altering the refractive index across pixel-sized portions of the polymeric waveguide. According to the invention, the addressable electrodes are disposed on a photoconductive substrate which facilitates poling of the polymer waveguide to rander it electro-optic in nature. During the poling process, the photoconductive substrate is made electrically conductive by flood illumination, while a uniform electric field is established between the substrate and a transparent electrode which overlies the waveguide layer, opposite the addressable electrodes. Preferably, the photoconductive substrate comprises undoped silicon which enables certain electrode-addressing circuitry to be integrated within the scanner structure.