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:
Feb. 17, 2009
Filed:
Oct. 11, 2006
Hideki Okamura, Osaka, JP;
Hideki Okamura, Osaka, JP;
Kyocera Mita Corporation, Osaka, JP;
Abstract
A scanning optical apparatus capable of maintaining sub scanning magnification small, and further, keeping the apparatus size small without elongating lenses, also suppresses spherical aberration relative to a scanning surface of a beam light small, thereby illuminating the beam light of high quality on the scanning surface. A beam light from a scanner is magnified by a scanning lens (magnifying lens), allowing sub scanning magnification be minimized. Also, while spherical aberration is normally aggravated since the beam light is magnified by the scanning lens, spherical aberration is suppressed by forming a correcting lens downstream from the scanning lens in a surface-decentered shape with respect to a light axis of the beam light.