“虚现实”(VIRTUAL REALITY)已成为一个新的技术词汇。计算机成象技术的日新月异,使人们可以从显示屏幕上逼真地看到如同梦境般的三维空间动态变幻状况,致使真实的空间得以虚空间的表现。在美国和欧洲,“虚世界”机问世了。它由一台计算机、带屏幕的头盔和其它辅助手段,如“电子手套”组成。这种新装置使得电子游戏机相形见绌。操作者开动机器,戴好套住双目的头盔,随着软件的运行,眼前出现的是色彩纷呈的立体空间。空间的三维尺度、角度、内部物体的运动或动作都可随人为操纵而 “VIRTUAL REALITY” has become a new technical vocabulary. With the rapid development of computer imaging technology, people can realistically see the dynamic change of a three-dimensional space like a dream from the display screen, resulting in the representation of real space as a virtual space. In the United States and Europe, the “virtual world” machine came out. It consists of a computer, a helmet with a screen, and other aids such as “electronic gloves.” This new device makes the electronic game machine dwarfed. The operator started the machine and put on a dual-purpose helmet. With the software running, what appeared in front of him was a colorful three-dimensional space. The three-dimensional dimensions, angles, movements or movements of internal objects can all be manipulated by humans.