High-pressure discharge lamp

Details High-pressure discharge lamp High-pressure discharge lamp

1986-03-20

1988-06-14

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Plural diverse-type load devices

315 46, 315 74, 315185R, 315189, 315193, H05B 3500, H05B 3700, H05B 3900, H05B 4100

Patent

active

047514329

ABSTRACT:
The invention relates to a high-pressure discharge lamp comprising an outer bulb accommodating a first and a second discharge vessel, these discharge vessels being connected electrically in series. According to the invention, the second discharge vessel is electrically shunted by a bimetal switch which is closed at a temperature of at least 300 K. The lamp thus starts in two steps, which facilitates the starting process and renders it more reliable.

REFERENCES:
patent: 2017719 (1935-10-01), Inman
patent: 2043023 (1936-06-01), Westendorp
patent: 2203550 (1940-06-01), Spanner
patent: 2208998 (1940-07-01), Mey
patent: 2714689 (1955-08-01), Waguet
patent: 4287454 (1981-09-01), Feuersanger et al.
patent: 4321506 (1982-03-01), Tsuchihashi et al.

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