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:
Oct. 17, 1989
Filed:
Sep. 27, 1988
Ricoh Company, Ltd., Tokyo, JP;
Ricoh Research Institute of General Electronics, Natori, JP;
Abstract
A contact type image sensor includes a plurality of opaque metallic films formed on top of a transparent insulating substrate. Each opaque metallic film is located between adjacent lower electrodes formed on a transparent insulating film so as to prevent light emitted from a light source from being irradiated on a document to be scanned. Further, each opaque metallic film is located between adjacent upper extension electrodes connected to transparent conductive films formed on photoelectric conversion layers, so as to prevent the light from being irradiated on the document. Only light which is emitted from the light source and then passes through the light window, is irradiated on the document.