Sulfur lamp having electrodes

Details Sulfur lamp having electrodes Sulfur lamp having electrodes

2006-09-29

2009-06-02

Williams, Joseph L (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S633000

Reexamination Certificate

active

07541729

ABSTRACT:
A sulfur lamp, is provided, including a power supply that supplies electrical power, a transparent bulb having a space inside that contains sulfur and a plurality of electrodes. Additionally, a portion of each electrode may be inserted into the space and an end of each electrode may be connected to the power supply such that the sulfur is excited by an electric discharge thereby emitting light. A portion of the electrode inserted into the space may be coated with a protective layer to prevent a chemical reaction of between the electrode and the sulfur. Further, the changing of the sulfur (contained in the space of the bulb) into a plasma phase may be accomplished by utilizing the electrodes (not microwaves). Therefore, a need to utilize a magnetron (which is low in energy transfer rate) may be eliminated, thereby increasing a system efficacy and saving a cost of replacing the magnetron.

REFERENCES:
patent: 5757130 (1998-05-01), Dolan et al.
patent: 5880559 (1999-03-01), Fox et al.
patent: 2002/0140381 (2002-10-01), Golkowski et al.
U.S. Appl. No. 11/536,924 to Park et al., which was filed on Sep. 29, 2006.

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