Arc lamp with external magnetic means

Details Arc lamp with external magnetic means Arc lamp with external magnetic means

1995-09-25

1996-12-31

Zimmerman, Brian

Electric lamp and discharge devices

With magnetic device

With envelope

313157, 315344, H01J 150

Patent

active

055897266

ABSTRACT:
The present invention provides an arc lamp for producing a high intensity point source of light by magnetically compressing the light emitting element of the arc lamp. Arc lamp point light source 30 includes bulb 32 having two electrode 34, 36 spaced apart to have gap 35 therebetween and hermetically sealed within bulb envelope 44 filled with ionizing gas. Connector 46 is provided for applying a voltage potential across electrodes 34, 36 causing electric current to pass therebetween to generate arc plasma 42. Annular magnet 48 and bar magnet 50 located outboard of bulb envelope 44 generate a magnetic field around arc plasma 42 to compress the volume thereof between electrodes 34, 36.

REFERENCES:
patent: 3028491 (1962-04-01), Schleich
patent: 3113234 (1963-12-01), Schlegel
patent: 3378713 (1968-04-01), Ludwig
patent: 3453481 (1969-07-01), Schimmelpfennig
patent: 3860335 (1975-01-01), Caprari
patent: 3881132 (1975-04-01), Miller
patent: 3988626 (1976-10-01), Boudouris
patent: 4069416 (1978-01-01), Suga
patent: 4720660 (1988-01-01), Whelan
patent: 5260815 (1993-11-01), Takizawa

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