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. 19, 2021
Filed:
Mar. 16, 2018
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Yoshiaki Hirata, Chiyoda-ku, JP;
Nobuaki Konno, Chiyoda-ku, JP;
Takahiko Ito, Chiyoda-ku, JP;
Kozo Ishida, Chiyoda-ku, JP;
Yoshitaka Kajiyama, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
An optical scanning device includes a mirror part having a mirror surface configured to reflect light, N support cantilevers supporting the mirror part swingably, N drive cantilevers, and a plurality of driving piezoelectric elements secured on N drive cantilevers. The mirror part precesses by setting the frequency of AC voltage applied to each of a plurality of piezoelectric elements to a determined common value and setting the phase of AC voltage applied to each of a plurality of piezoelectric elements to a value determined according to the position of each piezoelectric element.