Reflector electrode for electrodeless bulb

Details Reflector electrode for electrodeless bulb Reflector electrode for electrodeless bulb

1996-12-20

1999-07-13

Patel, Vip

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

313110, 313114, 313635, 313493, H01J 516

Patent

active

059231165

ABSTRACT:
A lamp apparatus includes an electrodeless bulb that includes a chamber, a gas contained within the chamber in the bulb, and at least one reflector electrode adjacent the bulb for transmitting radio-frequency electromagnetic energy to the gas in the bulb to excite the gas and cause it to radiate light and for reflecting the light radiated from the bulb. Preferably, there are two reflectors electrodes. The bulb can advantageously be made of a tube, in which case the reflectors electrodes can be made shorter than the bulb and centered thereon so that the intense heat caused by the plasma when the gas is excited does not reach the ends of the bulb.

REFERENCES:
patent: 3046432 (1962-07-01), Nehrich
patent: 5117160 (1992-05-01), Konda et al.
patent: 5309058 (1994-05-01), Heindl et al.
patent: 5438343 (1995-08-01), Khan et al.
patent: 5514934 (1996-05-01), Matsumoto et al.
patent: 5666026 (1997-09-01), Matsuno et al.

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