COMPARISON STUDY OF IMAGING QUALITY OF REFRACTING, DIFFRACTIVE AND HYBRID SINGLE LENSES

This paper is of didactic value. A possibility of aberration correctio n as exemplified by simple cases of single refractive, diffractive and hybrid lenses is shown. The imaging quality assessment was carried ou t based on the point spread function, wave aberration and incohenent M TF. These functions were calculated numerically by evaluating the diff raction integral. In the authors opinion, these simple examples render it possible to show clearly the influence of the aberrations on the q uality of the image produced by the optical elements operating on eith er the refraction or diffraction basis or both.