Fusion Uv Systems, Inc.

Pedro A Lezcano

Miodrag Cekic

Robert Ervin

Gregory W Walter

Jeffrey K Okamitsu

Jonathan David Barry

Jerome D Frank

George Jarrard

Miodrac Cekjc

A lamp assembly in accordance with the invention includes an electrodeless bulb ( ) which is symmetrical about an axis ( ) and which contains a light emissive fill which emits light when the bulb is excited by a RF electrical field coupled to the fill; an electrically conductive coupler ( ) comprising a plurality of turns ( ) which are symmetrical about an axis of the electrically conductive coupler, the turns defining a volume ( ) that at least partially contains the bulb; and a conductor ( ) connected to a center portion of the electrically conductive coupler with connection of the conductor to the electrically conductive coupler providing a fixing of the coupler relative to the bulb which, when the conductor is connected to a source of RF electrical potential, conducts a RF current producing a RF electrical potential on the electrically conductive coupler that produces the RF electrical field coupled to the light emissive fill.

Radio frequency driven ultra-violet lamp

The invention is a lighting system which produces visible and UV light. The system includes a light bulb ( ) which emits light in response to excitation by radio frequency energy; an electrically powered bulb rotation motor ( ) mechanically coupled to the light bulb which rotates the light bulb coupled thereto; an electrically energized radio frequency energy source ( ) which provides the radio frequency energy coupled to the light bulb, the electrically energized radio frequency energy source including a heater ( ) which is energized at least while the radio frequency energy source is turned on; and a control circuit ( ), for coupling to an electrical power source, which controls application of a regulated voltage to the heater and the bulb rotation motor.

Lighting system

The present invention is a microwave excited electrodeless bulb and a process of generating ultraviolet light with a microwave excited electrodeless bulb. A process of generating ultraviolet light with a microwave excited electrodeless bulb in accordance with the invention includes providing an electrodeless bulb ( ) with an envelope ( ) containing an ultraviolet emissive material which emits ultraviolet light in response to microwave excitation. The envelope is filled with an ultraviolet emissive material. The envelope has a major internal dimension ( ) between and &lgr; to which a strong field of the microwave excitation is coupled during emission of ultraviolet light with &lgr; being the free space wavelength of the microwave excitation which varies between 2.4 and 2.5 GHz. The strong field is produced by a microwave source having a steady state rated output power of no greater than 0.85 kW. The bulb is rotated at a rotational velocity of at least 20 revolutions per minute. Ultraviolet emission occurs in selected ranges between 200 and 300 nm while a stream of air is directed in contact with the rotating bulb to provide cooling thereof.

Microwave-powered ultraviolet rotating lamp, and process of use thereof

An electrodeless lamp comprises an envelope containing a fill and a substance for facilitating the starting of the lamp. An outer tube is secured to an outside portion of the envelope in proximity to the given region and an inner tube is disposed within the outer tube such that a fluid passageway is defined between an inner surface of the outer tube and an outer surface of the inner tube. A hollow retractable electrode is provided within the inner tube, the electrode having a first position in which its tip portion is in proximity to the given region of the envelope when the lamp is being started and a second position in which the tip portion is away from the envelope after the lamp is started. A source of cooling fluid is operably connected to the hollow electrode such that the cooling fluid is forced through the hollow electrode and exhausted through the fluid passageway. A power source is operably connected to the electrode in the first position for applying an electric field to the substance to cause a discharge of the fill. An excitation power source is coupled to the fill to sustain the discharge.

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Gaithersburg, MD, United States of America

Pedro A Lezcano