公开(公告)号：US4967873A

公开(公告)日：1990-11-06

申请号：US384180

申请日：1989-07-21

申请人： Masako Hacchow ,  Takeshi Yamagishi ,  Fumio Uchino ,  Hiroshi Kajimura

发明人： Masako Hacchow ,  Takeshi Yamagishi ,  Fumio Uchino ,  Hiroshi Kajimura

IPC分类号： G01N29/26 ,  G10K11/30

CPC分类号： G01N29/262 ,  G10K11/30

摘要： In an acoustic lens apparatus of this invention, a lens surface formed on an ultarsonic medium has a longitudinal wave lens portion constituted by a first aspherical surface at its central area, and a transverse wave lens portion constituted by a second aspherical surface at its peripheral area. The ultrasonic medium includes a piezoelectric transducer for generating ultrasonic waves at its surface opposite to the lens surface. The ultrasonic medium is arranged so that the lens surface opposes a sample, a coupler medium is filled in the gap between the surface and the sample.

摘要翻译： 在本发明的声透镜装置中，在超声波介质上形成的透镜面具有由其中央部的第一非球面构成的纵波透镜部，在其周边区域由第二非球面构成的横波透镜部 。 超声介质包括用于在其与透镜表面相对的表面处产生超声波的压电换能器。 超声波介质被布置成使得透镜表面与样品相对，耦合介质填充在表面和样品之间的间隙中。