The Design Of Fourier Len And Its Application In Optical Correlation Detection

High accuracy correlative detection technology of object signal is to search and detect objects by optical correlation, and it can detect real-timely, recognize automatically and orientate precisely, optical correction processes images at light speed and its device is simple ,and Fourier transformation can be realized . In this article, we mainly study how to design optical Fourier transformation system which can realize optical correlation.Optical Fourier transformation lens are designed automatically mainly depending on optical design software . After the optical original system being worked out by P,W method, they can be designed automatically by using computer. Every parameter of the system is changed simultaneously and aberration is adjusted according to optimizing theory, after the parameters are iterated a lot of times, perfect Fourier transformation system is obtained, and the requirement of optical correlation detection can be satisfied.