HID lamp with multiple discharge devices

Details HID lamp with multiple discharge devices HID lamp with multiple discharge devices

1988-12-21

1990-09-18

Wieder, Kenneth

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313 1, 313 44, 313634, 313317, H01J 6134, H01J 6154

Patent

active

049581031

ABSTRACT:
A high intensity discharge lamp having a pair of discharge devices with one of them initially operative. The discharge devices are laterally adjacent with the higher temperature end of the operative discharge device proximate the lower temperature end of the inoperative discharge device for heating it during lamp operation. This facilitates starting of the inoperative discharge device after a momentary power interruption.

REFERENCES:
patent: 2103029 (1937-12-01), Davies

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