Stereoscopic mesooptical Fourier microscope for nuclear emulsion

The design of a composite mesooptical lens with conical and spherical surfaces used in a mesooptical Fourier microscope for nuclear photoemulsion is presented. The stereoscopic Fourier microscope (SFM) consisting of three-element mesoopritical lens, optical and mechanical part and electronic units is described. The algorithm of SFM operation in real time by which one can erase the background on the surface of nuclear photoemulsion is given. The structure of electronic units and performances of SFM being developed in the JINR at the present time are given