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:
Sep. 05, 1995
Filed:
Aug. 04, 1994
Satoru Yoshizawa, Chofu, JP;
Eisaku Maeda, Sakura, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A linear illuminator for image reading by the use of a linear sensor comprises a linear illumination light source, a cylindrical rotational member provided about the circumference of the linear illumination light source, and plurality of color separation filters installed on the rotational member. By controlling the rotation of the rotational member, plural kinds of color separation linear illumination light are output in the time series. The cylinder may have a shielding area between filters, which enables measurement of the dark current of the linear sensor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile