Patent ID: 9127999
Filing Date: 2015-09-08
Classification: B25J,G01L

Abstract:
1. An ultrasonic sensor comprising: a substrate; an ultrasonic transducer disposed on the substrate, and configured to transmit ultrasonic waves that propagate as plane waves in a direction orthogonal to a surface of the substrate; an acoustic refracting part contacting the ultrasonic transducer, and configured to refract the ultrasonic waves transmitted from the ultrasonic transducer; an elastically deformable elastic portion disposed over the ultrasonic transducer and the acoustic refracting part; and an ultrasonic reflecting member disposed within the elastic portion, and configured to reflect the ultrasonic waves, the acoustic refracting part being configured to refract, toward the ultrasonic reflecting member, the ultrasonic waves transmitted from the ultrasonic transducer.