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. 24, 2009
Filed:
Apr. 05, 2006
Applicants:
Hiroshi Akiyama, Kanagawa, JP;
Yoshinori Hayashi, Kanagawa, JP;
Tomohiro Nakajima, Tokyo, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vibration mirror used in an optical scanning device has two reflection surfaces on opposite sides. A pair of light beams corresponding to a pair of different colors are irradiated on one reflection surface and another pair of light beams corresponding to another pair of different colors are irradiated on other reflection surface. If there are fluctuations in dimensions or a change in temperature, because the vibration mirror is one, all the colors are subjected to the same influences.