美帝一些公司为了能在很小视场内对制作精细线条所需射束进行精密控制,已将扫描电子显微镜和数字计算机结合起来使用。电子束制版技术虽然已离开实验室阶段,但用于生产还需较长的时间。电子束制版技术有很多优点。它可以省去目前制作原版时所用的昂贵的平台刻图机、一次缩小照相机和分步重复照相机。在电传打字机端点或用光笔可以简便地更改设计。这些优 Some companies at the US imperial court have used scanning electron microscopy and digital computers in order to provide precise control of the beam needed to make fine lines in a small field of view. Although electron beam platemaking technology has left the laboratory stage, but for the production takes longer time. Electron beam platemaking technology has many advantages. It eliminates the need for expensive platform plotters, one downsizing camera and step-and-repeat camera that are currently in production. Simply change the design at the teletypewriter endpoint or with a light pen. These excellent