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Patent Searching and Data


Title:
ELECTRODELESS ELECTRIC DISCHARGE LAMP
Document Type and Number:
Japanese Patent JPH0992229
Kind Code:
A
Abstract:

To provide an electrodeless electric discharge lamp having no oxidization deterioration at the time of high temp. caused by heat from the lamp and generating no deformation, or an electrodeless electric discharge lamp generating an insulation error in the case where the number of coil turn is large.

High frequency current is supplied from a high frequency power source 4 to an induction coil 2 arranged at the outside of a bulb 1 being made of translucent material and having therein sealed discharge gas to thereby apply a high frequency electromagnetic field to the gas to excite it to illuminate. In this electrodeless discharge lamp, a position being half counting from the start of winding in the turn number of the induction coil 2 is made the grounding electric potential position, and a balun 6 is interposed between the coil 2 and the power source 4.


Inventors:
UKEKAWA MAKOTO
SHIOHAMA EIJI
ANAMI SHINICHI
SAIMI MOTOHIRO
YAMAMOTO SHOHEI
Application Number:
JP25070895A
Publication Date:
April 04, 1997
Filing Date:
September 28, 1995
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
H01J65/04; H05B41/24; (IPC1-7): H01J65/04
Attorney, Agent or Firm:
Shigeji Sato (1 person outside)