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Patent Searching and Data


Title:
VIBRATION DEVICE AND OPTICAL DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/003572
Kind Code:
A1
Abstract:
Provided is a vibration device capable of efficiently removing water droplets or the like. A vibration device 1 is provided with a circular cylindrical body 2, a translucent body 21 which is connected to a first end section 2a of the circular cylindrical body 2, and a piezoelectric element 23 which is affixed to the circular cylindrical body 2. The circular cylindrical body 2 is provided with a first flange section 2d and a second flange section 2e, which are extended radially outward from the outer peripheral surface of the circular cylindrical body 2. The first flange section 2d is positioned closer to the first end section 2a side than the second flange section 2e. The piezoelectric element 23 is affixed to the second flange section 2e. When the piezoelectric element 23 is driven, the first flange section 2d vibrates so that the outer peripheral edge of the first flange section 2d is displaced in the axial direction of the circular cylinder body 2.

Inventors:
FUJIMOTO KATSUMI (JP)
Application Number:
PCT/JP2019/002546
Publication Date:
January 02, 2020
Filing Date:
January 25, 2019
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
B06B1/06; G03B15/00; G03B17/02; G03B17/56; H01L41/09
Domestic Patent References:
WO2017022382A12017-02-09
WO2011078218A12011-06-30
Foreign References:
JP2017170303A2017-09-28
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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