Abstract: It is a major problem to observe and analyze the geometrical aberrations of optical systems comprehensively and accurately in the fields of optics and optical design. A novel method of observing and analyzing the optical system aberrations,CCD supersaturated analysis method based on pinhole diaphragm,is proposed. In addition to the laser light source in the open optical path,the analyzing pattern with CCD supersaturated effect and zone dividing by calibration aperture are used in this method. With easy to understand and operate,abundant pattern information, obvious pattern phenomenon and low cost, the method not only facilitates the analysis and observation of geometric aberrations of optical systems but also sheds important light on the corresponding research of optical systems.

Key words: aberration analysis, CCD supersaturation, pinhole diaphragm