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:
Jan. 24, 1989
Filed:
Aug. 21, 1987
Kazuo Yamakawa, Osaka, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A tilt error corrective scanning optical system for a system having a deflection device for deflecting and reflecting a light beam, comprising a linear image forming optical device for causing a light beam emitted from a light source to form a linear image on the surface of the deflection device, and an image projection optical device for causing the deflected beam of the linear image to form restored image on an objective surface while maintaining constant beam scanning speed. The image projection optical device consists of a single toric lens having toric surfaces on the both sides thereof, the first toric surface faced to the deflection device is concave in both directions parallel and perpendicular to the scanning plane and the second toric surface opposite to the first toric surface is convex in the both directions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile