High power lamp cooling

Details High power lamp cooling High power lamp cooling

1998-10-19

2000-10-03

Pihulic, Daniel T.

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

362 35, 362264, H01J 1716

Patent

active

H00018767

ABSTRACT:
Light sources include an electrodeless bulb having an interior, a fill contained within the interior of the bulb, an excitation structure that transmits electromagnetic energy to the fill in the bulb, and cooling fins extending radically outward from the bulb. The fill is excited by the electromagnetic energy to a plasma state that causes light emission and generates heat energy. The cooling fins, when rotated, draw air toward the bulb to cool the bulb. Alternatively, cooling may be provided by a rotatable squirrel cage about an electrodeless bulb. The light sources can be used in display systems, such as field sequential color systems.

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