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Title: RF driven sulfur lamp having driving electrodes which face each other

Abstract

A high intensity discharge lamp without mercury is disclosed radiating a selected spectrum of which can be almost entirely in the visible range from an envelope that contains a sulfur containing substance. The lamp utilizes a signal source that generates an excitation signal that is externally coupled to the exterior surface of the envelope to excite the enclosed sulfur containing substance. Various embodiments of the lamp use electrodes adjacent the envelope to couple the excitation signal thereto with the face of the electrodes shaped to complement the shape of the exterior surface of the envelope. Two shapes discussed are spherical and cylindrical. To minimize filamentary discharges each envelope may include an elongated stem affixed to the exterior thereof whereby a rotational subsystem spins the envelope. In yet another embodiment the envelope has a Dewar configuration with two electrodes, one positioned near the external curved side surface of the body, and a second to the inner surface of the hole through the envelope. Further, the envelope may contain a backfill of a selected inert gas to assist in the excitation of lamp with that backfill at a pressure of less than 1 atmosphere, wherein the backfill pressure is directly related tomore » the increase or decrease of peak output and inversely related to the increase and decrease of the emitted spectrum from the envelope. The emitting fill can be less than 6 mg/cc, or at least 2 mg/cc of the envelope of a sulfur containing substance. 17 figs.« less

Inventors:
; ; ; ;
Issue Date:
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6343615
Patent Number(s):
5914564 A
Application Number:
PPN: US 8-224036
Assignee:
Univ. of California, Oakland, CA (United States) PTO; EDB-99-079031
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Resource Relation:
Patent File Date: 7 Apr 1994
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; DESIGN; ELECTRODES; EXCITATION SYSTEMS; LIGHT BULBS; SULFUR COMPOUNDS; VISIBLE RADIATION; ELECTROMAGNETIC RADIATION; RADIATIONS; 320106* - Energy Conservation, Consumption, & Utilization- Building Equipment- (1987-)

Citation Formats

Gabor, G., Orr, T.R., Greene, C.M., Crawford, D.G., and Berman, S.M. RF driven sulfur lamp having driving electrodes which face each other. United States: N. p., 1999. Web.
Gabor, G., Orr, T.R., Greene, C.M., Crawford, D.G., & Berman, S.M. RF driven sulfur lamp having driving electrodes which face each other. United States.
Gabor, G., Orr, T.R., Greene, C.M., Crawford, D.G., and Berman, S.M. Tue . "RF driven sulfur lamp having driving electrodes which face each other". United States.
@article{osti_6343615,
title = {RF driven sulfur lamp having driving electrodes which face each other},
author = {Gabor, G. and Orr, T.R. and Greene, C.M. and Crawford, D.G. and Berman, S.M.},
abstractNote = {A high intensity discharge lamp without mercury is disclosed radiating a selected spectrum of which can be almost entirely in the visible range from an envelope that contains a sulfur containing substance. The lamp utilizes a signal source that generates an excitation signal that is externally coupled to the exterior surface of the envelope to excite the enclosed sulfur containing substance. Various embodiments of the lamp use electrodes adjacent the envelope to couple the excitation signal thereto with the face of the electrodes shaped to complement the shape of the exterior surface of the envelope. Two shapes discussed are spherical and cylindrical. To minimize filamentary discharges each envelope may include an elongated stem affixed to the exterior thereof whereby a rotational subsystem spins the envelope. In yet another embodiment the envelope has a Dewar configuration with two electrodes, one positioned near the external curved side surface of the body, and a second to the inner surface of the hole through the envelope. Further, the envelope may contain a backfill of a selected inert gas to assist in the excitation of lamp with that backfill at a pressure of less than 1 atmosphere, wherein the backfill pressure is directly related to the increase or decrease of peak output and inversely related to the increase and decrease of the emitted spectrum from the envelope. The emitting fill can be less than 6 mg/cc, or at least 2 mg/cc of the envelope of a sulfur containing substance. 17 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {6}
}