Abstract:
An image intensifier tube comprising a sealed envelope having therein means for controllably liberating oxygen within the envelope, and an input screen including an oxygen conditioned layer of fluorescent material and an overlying layer of photoemissive material which may be oxidized to improve the photon-to-electron conversion efficiency of the input screen.A method of improving the conversion efficiency of an image intensifier tube input screen including the steps of exposing a layer of fluorescent material to oxygen prior to the deposition of an overlying layer of photoemissive material, and subsequently exposing the layer of photoemissive material to oxygen, if desired, after the tube envelope has been sealed.
Abstract:
A method for fabricating an anode plate of field emission luminescent device is provided. The method includes the steps of forming a metal layer on a substrate by using the physical or chemical deposition, printing a pattered protection layer on the metal layer, and sintering the pattered protection layer and oxidizing a potion of the metal layer, which is not covered by the pattered protection layer, so as to form a pattered electrode on the metal layer.
Abstract:
An image intensifier tube comprising a sealed envelope having therein means for controllably liberating oxygen within the envelope, and an iput screen including an oxygen conditioned layer of fluorescent material and an overlying layer of photoemissive material which may be oxidized to improve the photo-to-electron conversion efficiency of the input screen.A method of improving the conversion efficiency of an image intensifier tube input screen including the steps of exposing a layer of fluorescent material to oxygen prior to the deposition of an overlying layer of photoemissive material, and subsequently exposing the layer of photoemissive material to oxygen, if desired, after the tube envelope has been sealed.
Abstract:
A light source having a heatable filament 1 or an electrode, with the filament 1 or electrode being arranged in a bulb or tube 2. The bulb or tube 2 comprises an inner surface 3 and an outer surface 4, and to extend the service life of the light source, an agent 7 is arranged in the bulb or tube for removing contaminants and/or deposits 8 from the inner surface 3.
Abstract:
Tungsten halogen incandescent lamps comprise tungsten filaments having different tungsten evaporation rates during normal operation. The filaments are supported on lead-in wires made of an alloy including tantalum.
Abstract:
An image intensifier tube comprising a sealed envelope having therein means for controllably liberating oxygen within the envelope, and an input screen including an oxygen conditioned layer of fluorescent material and an overlying layer of photoemissive material which may be oxidized to improve the photon-to-electron conversion efficiency of the input screen.A method of improving the conversion efficiency of an image intensifier tube input screen including the steps of exposing a layer of fluorescent material to oxygen prior to the deposition of an overlying layer of photoemissive material, and subsequently exposing the layer of photoemissive material to oxygen, if desired, after the tube envelope has been sealed.