Abstract:
This invention is related to a matrix-type fluorescent indicator lamp which is formed of a matrix by making a number of grid thin wires 13 arranged in parallel intersect perpendicular to a number of anode thin wires 11 arranged in parallel within a sealed tube being composed of a glass cover 6 and an insulated substrate 8, and which displays characters and figures as a dotted pattern by making the fluorescent material-applied anode thin wires luminous spot-like where the anode thin wires 11 intersect the grid thin wires 13. In the lamp, said anode thin wires 11 are mutually arranged in parallel not being in contact with the insulated substrate 8 so as to densify luminous spots narrowing the pitch between the anode thin wires 11 arranged in parallel.
Abstract:
A thick-film circuit device having a substrate of insulating material containing alkali components, a first crossover made of non-alkali type glass and formed on the substrate, wiring conductors formed on the first crossover according to a predetermined circuit pattern, and a second crossover made of glass and formed on the first crossover so that it covers the wiring conductors, the first crossover preventing entry of sodium ions into the second crossover.
Abstract:
A glass-to-glass seal with an intervening layer of metal oxide is made using a frit containing a high lead content and a metallic nucleating agent. The metal oxide may optionally be used to provide conductive paths through the seal without embedded metallic conductors.
Abstract:
In a flat type fluorescent character indicating tube wherein a plurality of digit indicating elements are arranged in an evacuated envelope, there is provided a getter support structure located adjacent one end of the envelope. The getter support structure includes a shield plate extending toward the inner surface of the envelope to minimize distribution of the getter film toward the location of the digit indicating elements. At least one filament is extended above the digit indicating elements and its one end is secured to the getter support structure at a location beyond the shield plate.
Abstract:
An anode assembly for a luminescent display tube includes a substrate having a number of recesses of predetermined configuration formed in one major surface. An anode structure is formed in each of these recesses so that the anode structure conforms substantially to the shape of the recess. Each anode structure includes a layer of conductive material disposed on the bottom surface of the recess and projecting members or ridges of conductive material which are contiguous with the layer of conductive material and extend upward along the opposed side surfaces of the recess. When the anode structure is formed in an elongated recess, a channel shaped conductive layer results which is made up of the conductive layer on the bottom of the recess and the projecting members extending along the opposed sides of the recess.
Abstract:
A cathode-ray tube ultraviolet light source includes a metal housing provided with a light-transmissive window, a heatsink disposed within the metal housing, a phosphor having a first surface and an opposing second surface, wherein the second surface of the phosphor is in thermal contact with the heatsink, and an electron gun capable of developing an electron beam to impinge upon the first surface of the phosphor, whereby light emitted from the second surface of the phosphor is directed through the light-transmissive window.
Abstract:
A cathodoluminescent lamp includes a filament configured to emit electrons responsive to a voltage applied across the filament, an anode configured to receive electrons emitted from the filament, an emitter comprising cathodoluminescent material, disposed in proximity to the anode, configured to emit photons responsive to stimulation from the electrons and a vacuum envelope configured to enclose the filament, anode, and emitter, and to maintain a vacuum over a path of the electrons. The filament comprises a smooth electron emitting surface. The cathodoluminescent material may comprise a semiconductor material.
Abstract:
The present invention generally relates to a method for operating a plurality of field emission light sources, specifically for performing a testing procedure in relation to a plurality of field emission light sources manufactured in a chip based fashion. The invention also relates to a corresponding testing system.
Abstract:
The present invention relates to the field of field emission lighting, and specifically to a method for forming a field emission cathode. The method comprises arranging a growth substrate in a growth solution comprising a Zn-based growth agent, the growth solution having a pre-defined pH-value at room temperature; increasing the pH value of the growth solution to reach a nucleation phase; upon increasing the pH of the solution nucleation starts. The growth phase is then entered by decreasing the pH. The length of the nanorods is determined by the growth time. The process is terminated by increasing the pH to form sharp tips. The invention also relates to a structure for such a field emission cathode and to a lighting arrangement comprising the field emission cathode.
Abstract:
A target for ultraviolet light generation 20A includes a sapphire substrate 21 that transmits ultraviolet light UV, an interlayer 22 that is in contact with the sapphire substrate 21, includes oxygen atoms and aluminum atoms in a composition, and transmits ultraviolet light UV, and a luminous layer 23 that is provided on the interlayer 22, includes oxide crystals containing rare earth elements to which an activator agent is added, and receives electron beams EB so as to generate ultraviolet light UV.