PROBLEM TO BE SOLVED: To provide an ultrasonic device which can efficiently receive and transmit an ultrasonic wave by suppressing deformation of an acoustic lens.SOLUTION: An ultrasonic device includes an ultrasonic element array substrate 14 which has a plurality of ultrasonic elements performing at least one of transmission and reception of an ultrasonic wave, an acoustic lens 16 which has a lens part 22 for converging ultrasonic waves, and an acoustic matching part 15 which is arranged between the ultrasonic element array substrate 14 and the acoustic lens 16 and formed of resin firmly fixing the ultrasonic element array substrate 14 and the acoustic lens 16. A plurality of interval maintenance members 24 contacting the ultrasonic element array substrate 14 and the acoustic lens 16 are provided in the acoustic matching part 15, and maintain constant thickness of the acoustic matching part 15.COPYRIGHT: (C)2015,JPO&INPIT【課題】音響レンズの変形を抑制して効率良く超音波を受発信することができる超音波デバイスを提供する。【解決手段】超音波の発信及び受信の少なくとも一方を行う複数の超音波素子を有する超音波素子アレイ基板14と、超音波を収束させるレンズ部22を有する音響レンズ16と、超音波素子アレイ基板14と音響レンズ16の間に配置され、超音波素子アレイ基板14と音響レンズ16とを固着する樹脂で形成された音響整合部15と、を備え、音響整合部15には超音波素子アレイ基板14と音響レンズ16とに接触する間隔維持部材24が複数設置され、間隔維持部材24が音響整合部15の厚みを一定に維持する。【選択図】図3
