公开(公告)号：US3886488A

公开(公告)日：1975-05-27

申请号：US35614073

申请日：1973-05-01

Applicant: THOMSON CSF

Inventor： BOSSAERT JEAN ,  ERNVEIN JOEL ,  SPITZ ERICH

IPC: A61B6/02 ,  A61B6/00 ,  A61B6/04 ,  G01S9/66 ,  G01N29/04

CPC classification number: A61B6/4441 ,  A61B6/04

Abstract: The present invention relates to the real time visualization of ultrasonic images. The acoustic image conversion system in accordance with the invention comprises a diaphragm forming the bottom of a cell filled with a liquid; a periodic array of masking elements is provided for forming a grating of ripples at the reflective surface of the liquid, and an optical imaging system selects at least one of the radiations diffracted by the grating of ripples under the action of an incoherent illumination.