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:
Jun. 05, 1990
Filed:
Oct. 11, 1988
Tatsuo Yoshino, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A photometer for a reproduction machine in which the light reflected from a document, illuminated with light through a slit, is condensed by a condensing lens, the condensed light is diffused by a diffusion plate, and then the diffused light is detected by a plurality of sensors for a photometric test. The sensors are arranged along the width of an image of the document formed through the slit. Therefore, a reliable photometric test can be made even on such a document which has different colors on opposite sides of the intermediate portion of the slit along its length.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile