Phase-controlled, multi-electrode type of AC discharge light source
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 23, 2004
Grant Date -
Sep 11, 2003
app pub date -
Dec 30, 2002
filing date -
Mar 13, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An energy-saving, high-outputting and high-efficiency, electric discharge type of illumination apparatus and associated units having thin divisional electrode pieces arranged at relatively narrow intervals on an electrode-application area, which is defined on the bottom of a flat container. The divisional electrode pieces are fixed to the electrode-application area with an intervening sheet of good electrically insulating and thermally conductive material laid therebetween. A front glass having a fluorescence coating on its inside is placed to confront the electrode-application area. Cooling water is circulated in the electrode-application area for cooling the divisional electrode pieces. A multi-poled magnet sheet arranged outside the electrode-application area is aligned with the electrode-to-electrode space. Lower frequency power supplies are connected to the divisional electrodes to supply that with voltages of the same amplitude. The power supplies are connected in the form of a star and are connected to a controller for controlling the frequency, amplitude and phase of the voltage wave. The power supply uses an insulation transformer to float the voltages appearing at the output terminals. Thus, an electric discharge appears exclusively among divisional electrodes.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully