已研制出一种使用标准机械产品的光学扫描系统、可以区分16种灰级。此系统已由美帝的麦考恩实验室(McCown Labs)用于激光文件转发器。该系统由 He-Ne 激光器、构成小点的光学系统,光束偏转器、集光与传感器、数 An optical scanning system using standard mechanical products has been developed that can distinguish between 16 ash levels. This system has been used by the Mette’s McCown Labs for laser file repeaters. The system consists of He-Ne lasers, small dots forming optical systems, beam deflectors, light-gathering and sensors,