Ultraviolet cathodoluminescent lamp, system and method
AssigneeNS Nanotech, Inc.
InventorsSeth COE-SULLIVAN, Matthew STEVENSON, David Arto LALEYAN
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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.
Claims22
A device, comprising:
- 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 adjacent to the anode, configured to emit photons responsive to stimulation from the electrons,
- wherein the filament comprises a smooth emitting surface for emitting electrons;
- and
- a vacuum envelope configured to enclose the filament, anode, and emitter, and to maintain a vacuum over a path of the electrons, while comprising at least one window material capable of transmitting the photons.
A thermionic device, comprising a vacuum envelope, configured to emit photons outside of the vacuum envelope in the wavelength range of 200-230 nm.
A light emitting device, configured to emit photons in the wavelength range of 200-230 nm from a solid state semiconductor, having a stable light emission of greater than or equal to 50 μW for more than 700 hours.
Dependencies are inferred from the claim text.