Miniature low-wattage neon light source

Details Miniature low-wattage neon light source Miniature low-wattage neon light source

1991-05-13

1992-10-06

Yusko, Donald J.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313493, 313572, 313610, 313612, 313634, 313637, H01J 6142, H01J 6134, H01J 6135

Patent

active

051534797

ABSTRACT:
A source of red light includes a double-bore capillary tube having a pair of ends and a convoluted shape. A pair of electrodes is located at one end of the capillary tube and disposed within respective bores. An ionizable medium is enclosed within the capillary tube and includes neon at a pressure from about 300 to 600 torr. When energized, the ionizable medium generates an arc discharge between the electrodes consisting primarily of radiation in the range of from 590 to 670 nanometers. An outer jacket of vitreous material may surround the capillary tube and contain an inert gas (e.g., nitrogen) at a predetermined pressure.

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