Complex Optical System Design For Infrared/Laser With Large Field Of View And High Resolution

Infrared imaging detection system has the advantage of far distance and largefield of view, but it can not detect angle-to-angle two-dimensional information oftarget because image is short of distance information. The laser radar imagingsystem has strong ability to penetrate the atmosphere with high spatial resolutionand high tracking accuracy so that it is easy to measure distance information. Butthe laser radar system has not far distance, as well as small field of view. So it isnecessary to combine infrared imaging system with laser radar system to make upfor a single system with defects of small field of view and low spatial resolution.Complex optical system make full use of single systems to meet the need ofdifferent occasions. As it has broad application, it is necessary to conduct deeplyresearch on complex optical systems.The article deeply studies on complex optical system combined infraredimaging system and laser radar system. Firstly, infrared imaging system detect thetarget. Sequently, system automatically switches to the laser radar imaging systemfor it can detect accurate identification of the target and trace the target. Besides, thedesigned system has small volume and light weight.Firstly, the paper has made sure the parameters of the complex optical systemof infrared imaging system and laser radar imaging system, besides, it proposes thescheme of the system. Secondly, the paper has selected the infrared imagingdetectors and designed infrared imaging system. This system is diffractive hybridoptical system, which has achieved a non-thermal design in the temperature from-40℃to60℃. Besides, this paper has finished tolerance analysis and given areasonable tolerance range, which includes manufacturing tolerance and installationtolerance. The designed system has large field of view. The reasonable laser anddetector, the initial structure of the transferred and received system of laser are surein the end of the paper. Subsequently, the system finished the optimization,evaluation of imaging quality and tolerance analysis. The imaging quality meets therequirements in the range of tolerance. The design of laser radar guidance systemhas highly imaging resolution.