Design of a Wide Spectrum Optical System with Large Field of View for Monitoring and Reconnaissance
In order to meet the requirements of monitoring and reconnaissance for optical system using day and night dual and a wide range of monitoring and so on,a large field of view optical system with wide spectrum is designed by using aberration analysis method and optical design software.The designed optical system is composed of seven lenses.The optical surfaces of all lenses are spherical.The working band is 400～1 100 nm.The maximum full field of view reaches 140°.The focal length is 2.33 mm.Thef-number is 5.The latter working distance is 7.42 mm.The modulation transfer function value in the range of field of view at Nyquist frequency of 42 lp/mm is greater than 0.28.The relative illumination value is greater than 96％.The F-theta distortion value of the maximum field of view is about 27.85％.Finally,the various types of tolerances in the designed optical system are analyzed.The results show that the designed optical system has good aberration correction,good imaging quality and easy processing.
optical systemlarge field of viewwide spectrumtolerance analysis
万方数据
维普
