V.I. Mandrosov

Proposed schematic of long-focus low-coherent tomograph makes it possible to realize tomography of investigated stratified media with maximally possible resolution, equal to 4l0, where l0 is the mean wavelength of the probing radiation, with a depth of few millimeters. This resolution is twice as better as that resolution of famous optical coherent tomograph. Proposed schematic is based on using holography of focused images, holography on opposing beams, Michelson-s interferometer and long-focus lenses. Various versions of long-focus low-coherent tomographs can be used for obtaining tomograms of investigated media in sub-millimeter range (l0 = 0.1.0.5 millimeters) and far-infrared range (l0 = 10 100 micron). These tomographs, possessing the high penetrating ability and the high resolution, can successfully to compete with magneto-resonance tomograph in those fields, where this tomograph widely applied.