ULTRASONIC PROBE

摘要

PURPOSE:To provide effective measures against echo noises due to side surface reflection waves without losing the mechanical strength of an acoustic lens for a high-resolution ultrasonic probe. CONSTITUTION:A tooth-shaped concave surface lens groove 8 with its depth being approximately ultrasonic wavelength is formed on an entire surface reaching a taper region from an upper surface on the cylindrical side surface of an acoustic lens 5 with an upper surface where a piezoelectric element 3 is bonded and a lower surface and a lower surface with a taper region 7 and a concave lens 6. The direction along the teeth of the tooth-shaped concave lens groove 8 is in parallel with the longer axis of the acoustic lens.