MAIN RESULTS:
methods for replacing classical microlenses and prisms by diffractive ones;
analythical formula for computing the phase function of focusators in focal lines, contours of letters, plane domains;
asymptotic formulae for the light field in the focal region, the results of simulation;
ýtheory of design and evaluation of errors of compensators when forming aspherical wavefronts;
methods of designing combined and multifocus optical elements;
methods of design and errors evaluation of modans;
optical spatial filters for image recognition;
software for the design of photomasks and simulation of diffractive optical elements;
software complex for designing illuminating devices with DOEs.