Abstract
Abstract A spherical wave front propagating through the optical system, by the time it exits the system, is often no longer perfectly spherical. The departure of any wave front that is exiting the optical system from the ideal spherical reference can be described by an aberration function. The aberration function can be expressed in the form of different polynomials. The optical system that introduces aberrations does not form a stigmatic or ideal image. The distribution of energy at the image surface for different wave front aberrations can be described by ray aberration functions. Wave and ray aberrations are closely related. This article presents the basics optical aberrations, commonly expressed in these two forms.
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