Title:
DISCHARGE LAMP PROVIDED WITH OPTICAL TRANSMISSION CONDUCTIVEFILM FOR CONTAINING RADIO FREQUENCY NOISE AND HEATING
Document Type and Number:
Japanese Patent JPH09120796
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lamp assembly which may reduce noise at wireless frequencies generated in the discharge lamp, by providing a lamp envelope of the discharging lamp for a light transmitted conductive coating connected to a reference potential. SOLUTION: In a lamp assembly, a discharging lamp 12 comprises an elongated lamp envelope 22. Opposing ends of the lamp envelope 22 encloses electrodes 24, 26. The discharging lamp 12 includes a filling to aid lighting discharge. The lamp envelope 22 is coated by a light transmittal conductive coating 40, shielding noises at wireless frequencies. This conductive coating 40 is electrically connected to a reference potential such as a ground so as to sufficiently reduce the wireless frequency noises generated in the discharging lamp. Also a low impedance conductor is electrically contacted to the conductive coating 40 along with the lamp length or a part.
Inventors:
SIDWELL STEVEN C (US)
ENGLISH GEORGE J (US)
GARRISON ROBERT L (US)
JOHNSON RALPH J (US)
ENGLISH GEORGE J (US)
GARRISON ROBERT L (US)
JOHNSON RALPH J (US)
Application Number:
JP26210496A
Publication Date:
May 06, 1997
Filing Date:
October 02, 1996
Export Citation:
Assignee:
OSRAM SYLVANIA INC (US)
International Classes:
F21S8/10; F21V25/00; H05B41/24; H01J61/35; H01J61/52; F21V19/00; (IPC1-7): H01J61/35; H01J61/52
Attorney, Agent or Firm:
Toshio Yano (2 outside)
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