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:
Dec. 19, 1995
Filed:
Jan. 26, 1995
Applicant:
Inventor:
Masahiko Aiba, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347259 ;
Abstract
An image forming apparatus comprising a laser optical system for optical scanning on a photosensitive drum. The laser optical system comprises a polygon mirror having mirror surfaces with an inclination of an angle .theta.. The polygon mirror is rotated with each mirror surface inclined by the angle .theta. to a line normal to the scanning plane, while the incident light beams to the polygon mirror are inclined by an angle 2.theta. to the scanning plane, so as to compensate the inclination of the mirror surfaces of the polygon mirror. In this way, the polygon mirror can be easily manufactured by plastic molding without damaging the mirror surfaces.