Super-wide FOV inversed telephoto lens design for camera

摘要

Super-wide FOV lens has a short focal length, making the detection distance shorter. To suit the need of long detection distance, the inversed telephoto structure is used. In this paper, we designed a super-wide FOV camera system with a negative-positive inversed telephoto structure, whose FOV is 95°×71.25°.And optical aberration were analyzed detailedly, the structure of foreside and backside were made certain respectively, based on these, optical optimum design was accomplished.The result shows that in the entire field of view, the MTF at 60lp/mm is more than 0.4, the diameter RMS of spot diagram dispersion circle is less than 5 microns and the maximum distortion is less than 5%. The result shows that it meets the requirement of system well.