Huang Pujun, Jia Xinzhi, Li Jitian. Study on Method of Measuring MTF for Image Intensified Tube by Using CCD[J]. Editorial Office of Optics and Precision Engineering, 1995,(4): 102-107
Huang Pujun, Jia Xinzhi, Li Jitian. Study on Method of Measuring MTF for Image Intensified Tube by Using CCD[J]. Editorial Office of Optics and Precision Engineering, 1995,(4): 102-107DOI:
The optical transfer function(OTF)of a linear optical system can be derived by the Fourier transformation of the linear spread function (LSF).In this paper
a new way to measure the modulation transfer function(MTF)of an image intensified tube with a charge-coupled device(CCD)camera is presented.Compared with the other conventional systems
thismethod has the advantages of simple structure
easy operation and capability of date processing with a computer
etc.In the measuring system a CCD camera is used as an opto-elctronicconverter.The intensity signal of the LSF got from the camera is video-amplified
syn-chronously-seperated
sampled and kept
A-D converted
and finally sent to a computerthrough an interface circuit.With the combination of both software and hardware
we can ob-tain the MTF of an intensified tube in the real time easily.