Apparatus and method for creating a holographic ultrasound field in an object

US11262699B2 · kind B2 · utility

Assignees

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US
• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Kai Melde · San Francisco, US
• Peer Fischer · Glückstadt, DE
• Peter Weber · Barrington, US

Key dates

• Filing date: Dec 7, 2016
• Grant date: Mar 1, 2022
• Expiry date: Nov 24, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G03H2227/06
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An ultrasonic apparatus (100) for creating a holographic ultrasound field (1) comprises an ultrasound source device (10) being adapted for creating an ultrasound wave, and a transmission hologram device (20) having a transmission hologram (21) and an exposed acoustic emitter surface (22), said transmission hologram device (20) being acoustically coupled with the ultrasound source device (10) and being arranged for transmitting the ultrasound wave through the acoustic emitter surface (22) and creating the holographic ultrasound field in a surrounding space, wherein the acoustic emitter surface (22) is a smooth surface which do not influence the field distribution of the ultrasound wave. Furthermore, a method of creating a holographic ultrasound field in an object (3), wherein the ultrasonic apparatus (100) is used, and applications of the ultrasonic apparatus (100) are described.