cyclorama lights

The concept and project status of design were introduced of ceiling curtain sound amplifying system for world trade building in Beijing.

介绍了世贸天阶天幕扩声系统的设计理念与工程概况。

The principle for measuring motion parameters of projectiles using two sky screens in vertical intersection manner;

双天幕靶交汇测量弹丸飞行参数原理

Bases on the principle and apptication characteristic of sky screens,the levs and slits for consisting the optical system in sky screens,the function of optical trausformation,as well as the relation ship between them have been discusses in the present paper.

基于天幕靶的工作原理及现场使用特点,论述了组成天幕靶光学系统的透镜、狭缝、光学变换的功能及相互之间的关系,分析了光学成像透镜的焦距和孔径、狭缝尺寸(长、宽)和位置、光学变换方法等对形成光幕、汇聚光能的作用,以及对探测视场、探测灵敏度、工作稳定性等的影响。