Title:
音響レンズ及びその製造方法、並びに音響波プローブ
Document Type and Number:
Japanese Patent JP6598167
Kind Code:
B2
Abstract:
The present invention is aimed to provide, as an acoustic lens propagating a sonic wave having a wavelength λ of 100 µm or less, an acoustic lens capable of exhibiting excellent acoustic characteristics in response to the wavelength λ of the sonic wave to be propagated and a production method thereof. The acoustic lens is an acoustic lens 1 to be used for propagating a sonic wave having a wavelength λ of 100 µm or less, wherein the acoustic lens contains a silicone resin and silica particles, an average primary particle diameter of the silica particles is 15 nm or more, and a particle diameter (D90) of 90% of a cumulative percentage in cumulative particle size distribution of the silica particles is less than 1/8 of the wavelength λ of the sonic wave to be propagated.
Inventors:
Hideji Tomita
Suzuki Nao
Shigeo Kobayashi
Suzuki Nao
Shigeo Kobayashi
Application Number:
JP2018005885A
Publication Date:
October 30, 2019
Filing Date:
January 17, 2018
Export Citation:
Assignee:
Nisshinbo Holdings Inc.
Ueda Japan Radio Co., Ltd.
Ueda Japan Radio Co., Ltd.
International Classes:
H04R17/00; A61B8/00; H04R1/34; H04R31/00
Domestic Patent References:
| JP2017163331A | ||||
| JP2012034160A | ||||
| JP201512943A |
Attorney, Agent or Firm:
Arinaga Shun
Mai Sekine
Mai Sekine