FIELD: biological, polarization, luminescent and other microscopes for laboratories and investigations. SUBSTANCE: device has five members which are located in series along optical axis. First member is designed as positive meniscus which concavity is directed towards object plane, second positive member is made from glued negative and positive lenses, third member is made from two negative lenses between which positive lens is inserted. Fourth positive member is made from glued positive and negative lenses, fifth member is made from double-glued negative meniscus which concavity is directed towards image plane. EFFECT: increased functional capabilities. 1 dwg
