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:
Oct. 11, 2011
Filed:
Aug. 10, 2007
Applicants:
Keiichiro Ishihara, Yokohama, JP;
Takashi Urakawa, Kawasaki, JP;
Inventors:
Keiichiro Ishihara, Yokohama, JP;
Takashi Urakawa, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 15/14 (2006.01); B41J 27/00 (2006.01); H04N 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A compact light scanning apparatus is disclosed which can provide a high light scanning efficiency. The apparatus includes a scanner that scans a light beam from a light source to form an image in an effective scan area, and a light detector that detects light. The light scanning apparatus includes a light-introducing member that introduces a partial light beam component of the light beam within its light beam width to the light detector in a state in which the light beam scanned by the scanner proceeds toward outside the effective scan area.