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:
Dec. 30, 2014
Filed:
Mar. 21, 2012
Applicant:
Takaaki Koyama, Kawasaki, JP;
Inventor:
Takaaki Koyama, Kawasaki, JP;
Assignee:
Stanley Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01); F21S 8/10 (2006.01); G02B 26/10 (2006.01);
U.S. Cl.
CPC ...
F21S 48/1145 (2013.01); F21S 48/1757 (2013.01); G02B 26/0858 (2013.01); G02B 26/101 (2013.01);
Abstract
In a two-dimensional optical deflector apparatus comprising an optical deflector and a driver for driving the optical deflector, the optical deflector includes a mirror, a first piezoelectric actuator for rocking the mirror with respect to a first axis of the mirror, and a second piezoelectric actuator of a meander type for rocking the mirror with respect to a second axis of the mirror perpendicular to the first axis. The driver generates a curved-type saw-tooth drive voltage and applies the curved-type saw-tooth drive voltage to the second piezoelectric actuator.