Electrodeless discharge lamp device and lighting fixture...

Details Electrodeless discharge lamp device and lighting fixture... Electrodeless discharge lamp device and lighting fixture...

2007-03-27

2011-12-06

Tran, Anh (Department: 2819)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

C315S267000, C315S285000

Reexamination Certificate

active

08072155

ABSTRACT:
An electrodeless discharge lamp device comprises an induction coil, a pair of cores1a, 1b, and thermal conductor2. The cores1a, 1bare configured to generate a high-frequency electromagnetic field for exciting a discharge gas with receiving a high frequency electric power. Each of the cores is arranged to give an overall circumference around which the induction coil is wound. The thermal conductor is formed into an approximately cylindrical shape and inserted into the space so as to be thermally coupled with the cores for radiating heat generated at the cores. The core has its inside face at least center portion of which is spaced radially from the thermal conductor by a predetermined distance.

REFERENCES:
patent: 3523056 (1970-08-01), Horning
patent: 5572083 (1996-11-01), Antonis et al.
patent: 6175198 (2001-01-01), Nerone
patent: 6-196006 (1994-07-01), None
patent: 2000-353600 (2000-12-01), None
patent: 2006-108056 (2006-04-01), None
patent: 2006-331887 (2006-12-01), None
International Search Report, Jun. 12, 2007, issued in PCT/JP2007/056304.
Extended European Search Report issued Jul. 2, 2010 in the corresponding European patent application.

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