激光-CCD系统衍射谱分析法测量光学系统传递函数

Laser-CCD system diffraction spectrum analyzing to measure the OTF of imaging optical systems

建立了以线阵列CCD器件测量衍射功率谱的实验装置,给出了由衍射功率谱计算镜头光学传递函数的理论模型和计算程序,通过与常规的象面扫描方法测量OTF比较,讨论了测量高倍显微物镜OTF的可能性,最后给出了实验结果。

Using the linear range GCD, the author sets up the experimental apparatus to measure the PSD of the diffraction light of the optical systems, Basing on this PSD, the author gives out the theoretical model and the computer programs to obtain the OTF of the optical systems,Comparing this method with the general method--that man measures the OTF by scanning the image plane, the author considers it is possible to use this method to masure the OTF of the large maguifying power mieriooskop objectiver, In the end the author gives out an experimental result,