ELECTRODELESS DISCHARGE LAMP DEVICE

Japanese Patent JP2006147454

A

To efficiently carry out electric power supply to an arc tube, and improve performances for a practical usage including starting characteristics and controllability in an electrodeless discharge lamp device.

The electrodeless discharge lamp device 1 is provided with a power supply part 2 for generating an electromagnetic wave, an arc tube 3 to emit light by electrodeless discharge light emission, and an electromagnetic wave irradiation part 4 including an exciter for introducing the electromagnetic wave into the arc tube. A reflective wave detecting means 6 to connect the power supply part 2 and the electromagnetic wave irradiation part 4 by using a coaxial tube or a coaxial cable and to wave-detect the reflected wave which spreads from the arc tube 3 to the power supply part 2 side, and an output adjusting means 7 to adjust the output of the power supply part 2 in order to minimize a reflection loss based on measurement information from the reflective wave detecting means 6 are installed. Efficiency is enhanced by reducing the reflection loss, and rising characteristics of a luminous flux can be made superior.

JP5277137	Discharge lamp lighting device and display device using it
JP3387229	COMPACT FLUORESCENT LAMP, LAMP LIGHTING DEVICE, AND LIGHTING SYSTEM USING LAMP
WO/2002/047442	ELECTRONIC BALLAST WITH FEED-FORWARD CONTROL

SERITA TAKUYA
SHITO MASAYA
SHINDO MASASHI

JP2004338873A

June 08, 2006

November 24, 2004

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KOITO MFG CO LTD

H05B41/24; H01J65/04

JPH09285139A	1997-10-31
JPH0676971A	1994-03-18
JPH0875636A	1996-03-22
JP2002184592A	2002-06-28

Yuji Komatsu
Masanobu Iwata

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