Energy saving gas discharge lamp including a xenon-based gaseous mixture
AssigneeOsram Sylvania Inc.
InventorsJohn Peterson, Daniel Marian, Paul Salvi
Life of this patent
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Abstract
An energy saving gas discharge lamp, and method of making same, is provided. The gas discharge lamp includes a light-transmissive envelope, and an electrode within the light-transmissive envelope to provide a discharge. A light scattering reflective layer is disposed on an inner surface of the light-transmissive envelope. A phosphor layer is coated on the light scattering reflective layer. A discharge-sustaining gaseous mixture is retained inside the light-transmissive envelope. The discharge-sustaining gaseous mixture includes more than 80% xenon, by volume, at a low pressure.
Claims6
A method of providing a gas discharge lamp including mercury vapor, the method comprising:
- joining a light-transmissive envelope with an electrode, the electrode to provide a discharge;
- disposing a light scattering reflective layer on an inner surface of the light-transmissive envelope;
- coating a phosphor layer on an inner surface of the light scattering reflective layer;
- dispensing mercury inside the light-transmissive envelope;
- and
- supplying a gaseous mixture inside the light-transmissive envelope, the gaseous mixture comprising more than 80% xenon, by volume, at a low pressure.
Dependencies are inferred from the claim text.