  We propose a source of multimode squeezed light that can be used for the
superresolving microscopy beyond the standard quantum limit. This source is an
optical parametric amplifier with a properly chosen diaphragm on its output and
a Fourier lens. We demonstrate that such an arrangement produces squeezed
prolate spheroidal waves which are the eigen modes of the optical imaging
scheme used in microscopy. The degree of squeezing and the number of spatial
modes in illuminating light, necessary for the effective object field
reconstruction, are evaluated
