PROBLEM TO BE SOLVED: To provide an ultrasonic wave device which is a light ultrasonic wave induction type in which energy of an ultrasonic wave is hardly reduced even when distance from an ultrasonic wave generation member is increased.SOLUTION: An ultrasonic wave device of the invention comprises an ultrasonic wave generation member 13a. The ultrasonic wave generation member 13a is a sheet-state light absorption member which acoustically comes into contact with an acoustic liquid 40 arranged between an analyte and an ultrasonic wave reception array 17 so as to acoustically couple the analyte and the ultrasonic wave reception array 17, and is stretched in the acoustic liquid 40 so as to be interposed between the analyte and the ultrasonic wave reception array 17.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】 超音波発生部材からの距離が増加しても、超音波のエネルギーが低下しにくい光超音波誘導型の超音波装置を提供すること。【解決手段】 本発明の超音波装置は超音波発生部材13aを有し、超音波発生部材13aは、被検体と超音波受信アレイ17とを音響的に結合するように被検体と超音波受信アレイ17の間に配置された音響液体40に音響的に接し、被検体と超音波受信アレイ17との間に介在するように音響液体40中に張架されたシート状吸光部材である。【選択図】 図1
