Lamp equipped with magnets

Details Lamp equipped with magnets Lamp equipped with magnets

1976-03-29

1978-01-17

Wintercorn, Richard A.

Electric lamp and discharge devices

With magnetic device

With envelope

F21V 1300

Patent

active

040694160

ABSTRACT:
An electrically energized illuminating lamp having a bulb and a source of light within the bulb and emitting light through a portion of the bulb, and at least one magnet around the exterior wall of the bulb at a position other than the portion of the bulb through which light is emitted for attracting metal vapor and volatile matter generated inside the bulb during operation of the lamp and depositing them onto the interior wall of the bulb at a position corresponding to that of the magnet. Deposits are thus prevented on the interior wall of the bulb in light transmission areas thereof to reduce emission of light from the lamp. The lamp can be a mercury lamp or a filament type lamp such as an incandescent or halogen type lamp.

REFERENCES:
patent: 3991336 (1976-11-01), Suga

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