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东京大学和日本Iwatsu电子公司在日本医用超声学会第50届大会暨亚洲医用超声联合会上展出了一台三维显示装置。这台装置采用与可变聚焦相类似的以高速伺服电机移动45度倾斜平面镜的方法,可获取人体内部脏器的三维扇形图象,显示在23时CRT上。并且可同步移动图象,以获得最佳效果。平面镜每秒可移动六次。由于平面镜和每帧三维扇形图象都在同一点线上,移位又保持着稳定的速度,所以能将显示出来的图象数据实时地贮存起来。操作者将半镜放在前额,并使之与图象及三维品格相一致,即可观察到任何角度的感兴趣部分。获取的图象要比用一般扇扫装置取得的图象清晰得多。该装置的显示范围
Tokyo University and Japan’s Iwatsu Electronics unveiled a 3D display at the 50th Japan Medical Ultrasound Association and the Asian Medical Ultrasound Association. This device uses a similar method of variable focus with high-speed servo motor to move the 45 degree tilt plane mirror method to obtain three-dimensional fan image of internal organs of the human body, displayed on the 23rd CRT. And the image can be moved simultaneously to get the best results. The plane mirror can be moved six times per second. Since the flat mirror and the three-dimensional fan-shaped image of each frame are on the same dot line, the shift is maintained at a constant speed so that the displayed image data can be stored in real time. The operator places the half-mirror on the forehead and matches it with the image and the three-dimensional character to see the portion of interest at any angle. The resulting image is much clearer than the image obtained with a normal fan-swept device. The display range of the device