一种双视场电视/激光测距接收共光路一体化机设计

Integrated machine design with common path on TV camera with dual field of view and laser ranging reception

设计了一款双视场电视与激光测距接收共光路一体化机。根据应用需求,首先对CMOS、雪崩管器件选型;其次对光学、机械、电气部分进行设计,采用共用前物镜组,并利用镀有光谱分光膜的分光镜以及中继镜组,实现电视双视场与激光接收的共光路光学系统设计,电视大视场用于搜索目标,电视小视场用于跟踪目标,激光测距接收单元用于接收激光回波;然后采用主镜筒与整机壳体一体化设计,并以整体铸造方式进行加工,提高一体机整体结构强度;最后采用双H桥电机启动芯片并联设计,提高运行额定电流,并根据限位开关检测结果,实现电机对传动部件的精准限位控制。对设计结果进行分析,结果表明:设计的一体机大/小视场像质良好、像面稳定,激光测距接收单元工作状态良好。

A sort of common path and integrated machine design on TV camera with dual field of view and laser ranging reception was designed.According to the application requirements,the work on device selection about CMOS and avalanche tube was carried out at first.Then,the work on optical,mechanical,and electrical design was carried out.By means of the shared previous objective lens group,the spectroscope coated beam-splitting film and relay lens group were used to achieve the design of common path optical system.The big field of TV camera view was used for searching targets,the small field of TV camera view was used for tracking targets,and the unit of laser ranging reception was used for receiving laser echo.The body tube and the complete machine shell were designed integrally and processed by monoblock casting way,and the whole structural strength of integrated machine was improved.The startup chip for dual H-bridge motor was designed parallelly to improve the operating rated current,and according to the detection results of limit switch,the precise limit control of transmission components by electrical machinery was achieved.Analysis of the design results shows that the image quality of the big/small field of view of integrated machine is good,the image plane is stable,and the unit of laser ranging reception maintains a good working state.