Title:
ELECTRODELESS FLUORESCENT LAMP LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2005/072021
Kind Code:
A1
Abstract:
An electrodeless fluorescent lamp lighting device comprises an electrodeless fluorescent lamp (1), an induction coil (2), and a high-frequency lighting circuit composed of an AC/DC converting circuit (5), a DC/AC converting circuit (6), a resonance load circuit (8), a control circuit (7), and a current detecting means (9). Control is effected so that the product f×I of the frequency f of the current flowing through the induction coil (2) and the effective value I of the current is above a predetermined value. As a result, even if metal is disposed near the electrodeless fluorescent lamp (1), the electrodeless fluorescent lamp (1) does not stay in a capacitive coupling discharge state and can be infallibly lit with inductive coupling discharge.
Inventors:
KOMINAMI SATOSHI
KURACHI TOSHIAKI
HASHIMOTODANI KIYOSHI
KURACHI TOSHIAKI
HASHIMOTODANI KIYOSHI
Application Number:
PCT/JP2004/016743
Publication Date:
August 04, 2005
Filing Date:
November 11, 2004
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
KOMINAMI SATOSHI
KURACHI TOSHIAKI
HASHIMOTODANI KIYOSHI
KOMINAMI SATOSHI
KURACHI TOSHIAKI
HASHIMOTODANI KIYOSHI
International Classes:
H05B41/28; (IPC1-7): H05B41/24
Foreign References:
| JP2003332090A | 2003-11-21 | |||
| JP2003317989A | 2003-11-07 |
Attorney, Agent or Firm:
Nii, Hiromori c/o Nii, Patent Firm (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10,
Nishi Nakajima 5-chome, Yodogawa-k, Osaka-city Osaka, JP)
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