No abstract

In another communication the authors have described a technic for obtaining relatively monochromatic U-V television images by means of the flying spot microscope ( 1). This system is in operation, and the purpose of this paper will be to report results of preliminary experiments designed to establish the period of time over which unchanged images can be obtained with the flying spot system.Methods. The light source is a U-V emitting cathode ray scanner tube on the face of which is formed a 240 line raster. This raster is traced by a spot deflected horizontally a t 60 cycles/second and vertically at one cycle