Fringe Analyzer For A Fizeau Interferometer

We have developed a new computerized measuring system for interferometric testing of lenses and mirrors. A personal computer with an image processor controls a laser interferometer, stores interferograms, derives the wavefront shape, and evaluates such imaging performances of optical components as the Seidel and the Zernike aberration coefficients, the peak to valley(P-V), the root mean square(RNS) values of wavefront aberration, the spot diagrams, PSF, and MTF.