Lamp control device

Details Lamp control device Lamp control device

1982-02-23

1983-11-22

Dixon, Harold

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Electric switch inside evacuated or gas filled envelope

315119, 315127, H05B 3700, H01J 744

Patent

active

044171773

ABSTRACT:
A lamp control device in which the lamp circuit is controlled in accordance with a signal generated from a condition of an evacuated outer seal envelope. The signal being converted into a control action at the end of occurence of the signal so that the lamp heater contained in an inner envelope is rendered inoperable thereafter.

REFERENCES:
patent: 4039893 (1977-08-01), Corbley
patent: 4217522 (1980-08-01), Strauss
patent: 4229678 (1980-10-01), Petro

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