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:
Apr. 08, 2008
Filed:
Jan. 30, 2006
Ken-ichi Tomita, Mishima, JP;
Masaki Sato, Numazu, JP;
Akihiro Fukutomi, Mishima, JP;
Hidekazu Shimomura, Yokohama, JP;
Kazumi Kimura, Toda, JP;
Ken-ichi Tomita, Mishima, JP;
Masaki Sato, Numazu, JP;
Akihiro Fukutomi, Mishima, JP;
Hidekazu Shimomura, Yokohama, JP;
Kazumi Kimura, Toda, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical scanning device has a light shield plate where a scanning line emitted from a light source passes through a scanning lens, and is reflected by a rotation polygon mirror, and after that, passes through the scanning lens again, and is reflected by the scanning lens at the opposite side of the rotation polygon mirror by nipping the scanning lens, wherein the light shield plate is placed at a position wherein the distance between the rotation polygon mirror and the scanning lens, the thickness in the optical axial direction of the scanning lens, the angle by which the scanning line incident the rotation polygon mirror and the convergent angle of the scanning line satisfies a certain relationship.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile