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:
Nov. 12, 2019
Filed:
Jun. 07, 2016
Dai-ichi Seiko Co., Ltd., Kyoto-shi, Kyoto, JP;
Kazuhiro Okada, Ageo, JP;
Satoshi Era, Ageo, JP;
Shinya Sakamoto, Kyoto, JP;
Yoshifumi Ikeda, Kyoto, JP;
Shogo Kurogi, Kyoto, JP;
Kenji Ogata, Kyoto, JP;
DAI-ICHI SEIKO CO., LTD., Kyoto-Shi, JP;
Abstract
A mirror with a reflective layer formed thereon is supported within a frame-shaped support by two U-shaped arms. A plate-like arm connects fixation points (Q, Q), and a plate-like arm connects fixation points (Q, Q). A pair of piezoelectric elements (E, E) disposed along a longitudinal axis (L) on an upper surface of an outside bridge of the arm, and a single piezoelectric element (E) disposed along the longitudinal axis (L) on the upper surface of an inside bridge. Similarly, a pair of piezoelectric elements (E, E) disposed on an upper surface of an outside bridge of the arm, and a single piezoelectric element (E) disposed on the upper surface of an inside bridge. When a positive drive signal is applied to the piezoelectric elements (E, E, E, E) and a negative drive signal is applied to the piezoelectric elements (E, E), the mirror is displaced efficiently.