Metal vapor discharge lamp

Details Metal vapor discharge lamp Metal vapor discharge lamp

1990-10-19

1991-09-03

Mis, David

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

315 60, 315 73, H05B 4114, H01J 744, H01J 1734

Patent

active

050457578

ABSTRACT:
A metal vapor discharge lamp comprising a FEC. a semiconductor switch and a thermal response switch and operated at a supply voltage of 100 to 130 V. The thickness if the FEC is 0.45 to 0.8 mm and the breakover voltage of the semiconductor switch is 60 to 100 V so that the discharge is safely caused in a light emitting tube and lighting at a voltage of -10% of the rated voltage is enabled. The open time of the thermal response switch is not less than 30 seconds so that starting is ensured even when the dimension of the light emitting tube is long or the pressure of xenon is high.

REFERENCES:
patent: 4520294 (1985-05-01), Iida et al.
patent: 4897576 (1990-01-01), Iida et al.

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