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. 28, 2012
Filed:
Sep. 28, 2007
Applicants:
Johji Yamaguchi, Kanagawa, JP;
Naru Nemoto, Kanagawa, JP;
Shingo Uchiyama, Kanagawa, JP;
Tsuyoshi Yamamoto, Kanagawa, JP;
Inventors:
Johji Yamaguchi, Kanagawa, JP;
Naru Nemoto, Kanagawa, JP;
Shingo Uchiyama, Kanagawa, JP;
Tsuyoshi Yamamoto, Kanagawa, JP;
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A detection means () detects optimum driving voltages of a mirror device. A correction means () corrects driving voltage values in a table () based on the optimum driving voltages. This makes it possible to drive the mirror to an optimum pivot angle even when the optimum pivot angle of the mirror changes due to, e.g., mirror drift or a change in the environment such as temperature.