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US 6,635,557 B2Granted
Halogen doped solid state materials
AssigneeNeumann Information Systems, Inc.
InventorsDavid K. Neumann, Thomas L. Henshaw
Life of this patent
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Abstract
A tunable solid state laser has an optical quality solid material impregnated with a halogen dopant. An optical cavity resonator contains the solid material. An optical excitation source is coupled to the solid material. The doped material has additional applications as a coating to produce white light from blue light emitting diodes.
Claims6
A process of altering a wavelength of a light emitting diode, comprising the steps of:
- a) selecting a halogen dopant;
- b) impregnating a material with the halogen dopant to form a doped material;
- and
- c) placing the doped material adjacent to a blue light emitting diode to form a white light LED.
1 more element
Dependencies are inferred from the claim text.