made of a uniaxial birefringent crystal sandwiched between two linear polarizers; the lens
has prespecified off-axis aberrations such as primary astigmatism and primary coma. An
analytical expression is obtained for the optical transfer function of the proposed system by
use of the autocorrelation of the pupil function over the lens aperture. Some specific cases
are computed and illustrated graphically. It has been shown that the proposed system has …