Abstract: A light intensifier tube is described and which includes a photocathode; a luminescent screen disposed in spaced relation relative the photocathode; a shutter electrode disposed intermediate the photocathode and the luminescent screen; and an anode located intermediate the shutter electrode and the luminescent screen is provided.

Abstract: A light intensifier tube is described and which includes a photocathode; a luminescent screen disposed in spaced relation relative the photocathode; a shutter electrode disposed intermediate the photocathode and the luminescent screen; and an anode located intermediate the shutter electrode and the luminescent screen is provided.

Abstract: The IIT of the present invention consists of the following parts arranged in series along the optical axis of the IIT in the direction from the target being observed to the viewer's eye: a fiber-glass plate having a flat side facing the object and a concave side facing the viewer, a thin-film coating applied onto the concave surface of the fiber-glass plate which functions as a photo-cathode, an anode made in the form of a truncated cone with the narrow side facing the photo-cathode, and a flat luminescent screen made of glass with a luminescent coating. Unique parts of the IIT of the invention are a specially profiled and dimensioned anode and shutter electrode. The anode and the shutter electrode have specific relationships between the diameters and lengths of the portions from which this parts are composed.

Abstract: A light intensifier tube is described and which includes a photocathode; a luminescent screen disposed in spaced relation relative the photocathode; a shutter electrode disposed intermediate the photocathode and the luminescent screen; and an anode located intermediate the shutter electrode and the luminescent screen is provided.