Fusion Uv Systems, Inc.

Miodrac Cekjc

Robert Ervin

Pedro A Lezcano

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.

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Bethesda, MD, United States of America

Miodrac Cekjc