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:
Nov. 24, 1992
Filed:
Jun. 28, 1991
Denny L Lee, West Chester, PA (US);
Lothar S Jeromin, Newark, DE (US);
E. I. Du Pont de Nemours & Company, Wilmington, DE (US);
Abstract
An element, a device and an associated method for capturing radiographic images. More particularly, the present invention uses a unique microcapacitor matrix structure to hold varying electrical charges representing a latent radiographic image. The microcapacitor matrix structure or element comprises a first, electrically conductive, backing layer, a second photoconductive layer, a third dielectric layer and a plurality of conductive microplates having dimensions coextensive with a minimum resolvable picture element. The method comprises (a) preventing actinic radiation from impinging on the element, (b) applying an electric potential difference between the plurality of microplates and the backing layer, (c) impinging imagewise modulated X-ray radiation for a first time period onto the element, and (d) after the first time period, stopping the applying step.