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利用全息技术，研制成了旋转全息圆盘，并与微机结合，开发出了一种体积小、性能高的室内警戒系统。使用不可见激光束垂直投射到旋转全息圆盘上，产生复数衍射光束向不同方向传播。人或物体上的反射散乱光经全息圆盘收集，菲涅尔透镜聚集，通过光电转换器送入微机处理判别，在约１０平方米的警戒区域内，能够快速监测出人的存在及其移动情况。
The use of holographic technology, developed into a rotating holographic disc, and combined with the computer, developed a small size, high performance indoor guard system. The invisible laser beam is projected perpendicularly onto the rotating holographic disc, producing a complex number of diffracted beams that propagate in different directions. People or objects scattered light collection by the holographic disc, Fresnel lens aggregation, through the photoelectric converter into the computer processing discrimination, in about 10 square meters of warning area, can quickly detect the presence of human and its movement Happening.