Title:
塵埃除去用振動装置および撮像装置
Document Type and Number:
Japanese Patent JP7305362
Kind Code:
B2
Abstract:
A vibration device comprises a vibrating member having at least n (n ≥ 2) piezoelectric elements arranged on a vibrating plate, each of the piezoelectric elements being formed by using a lead-free piezoelectric material and electrodes, wherein if the temperature that maximizes the piezoelectric constant of the piezoelectric material of each of the n piezoelectric elements is expressed as T(m being a natural number between 1 and n), at least two of Tthrough Tdiffer from each other.
Inventors:
Yasushi Shimizu
Matsuda Kenyoshi
Shinya Koyama
Jun Kubota
Akihiro Hayashi
Kanako Taishiman
Matsuda Kenyoshi
Shinya Koyama
Jun Kubota
Akihiro Hayashi
Kanako Taishiman
Application Number:
JP2019017220A
Publication Date:
July 10, 2023
Filing Date:
February 01, 2019
Export Citation:
Assignee:
Canon Inc
International Classes:
B06B1/06; G03B17/02; H01L23/00; H04N5/64
Domestic Patent References:
| JP2013090495A | ||||
| JP57208259A | ||||
| JP2013099736A | ||||
| JP2014140028A | ||||
| JP2011114587A | ||||
| JP2013518422A |
Foreign References:
| CN103056098A | ||||
| WO2016103514A1 |
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Aki Honda
Takao Ochi
Koji Yoshizawa
Aki Honda