High pressure discharge lamps with fast restart

Details High pressure discharge lamps with fast restart High pressure discharge lamps with fast restart

1979-12-17

1981-09-01

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Plural diverse-type load devices

315 35, 315 48, 315183, 315 46, 315185R, H05B 3500, H05B 3700, H05B 3900, H05B 4100

Patent

active

042874548

ABSTRACT:
A light source including two high intensity discharge devices, such as metal vapor discharge tubes, electrically coupled in parallel to provide fast restart and immediate illumination after a momentary power interruption. Upon application of power, one of the discharge devices starts and operates while the other discharge device remains below its maximum starting temperature and in readiness for immediate restart. The discharge devices can be enclosed by a common outer envelope. The discharge devices can alternatively be high pressure electrodeless lamps coupled in parallel to provide fast restart.

REFERENCES:
patent: 966204 (1910-08-01), Hewitt
patent: 1033275 (1912-07-01), Schaffer
patent: 2017719 (1935-10-01), Inman
patent: 2043023 (1936-06-01), Westendorp
patent: 2076278 (1937-04-01), Ryde et al.
patent: 2297258 (1942-09-01), Spanner
patent: 2691746 (1954-10-01), Zwikker
patent: 2878422 (1959-03-01), Stoelting
patent: 3187221 (1965-06-01), Walsh

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