A new method for image formation in the focal plane of the objective i
s proposed and realized using novel optical elements, so-called spekfo
rms manufactured by hot moulding and baking technology. The spekforms
with the maximum optical inhomogeneity gradient varying from tenths to
hundreds of a wavelength have been designed and fabricated. They allo
w formation of both axially symmetric and axially nonsymmetric contour
drawings with radiation transformation efficiency close to 100%.