Arc discharge lamp with internal starter

Details Arc discharge lamp with internal starter Arc discharge lamp with internal starter

1990-02-05

1991-01-22

Pascal, Robert J.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

315 60, 315150, 315289, H05B 4114

Patent

active

049873440

ABSTRACT:
A high intensity discharge lamp (e.g., a metal halide) containing an arc tube having first and second electrodes respectively sealed at opposite ends thereof. An outer envelope surrounds the arc tube and has a lamp base disposed at one end thereof. The lamp base has first and second terminals for electrical connection to the arc tube. The lamp further includes means for electrically coupling each of the base terminals to a respective electrode of the arc tube. A starting circuit is disposed within the lamp electrically connected in parallel with the arc tube. The starting circuit comprises a non-linear dielectric element (e.g., a non-linear capacitor) and a glow capsule. The glow capsule is located within the outer envelope proximate the arc tube and adapted to produce ultraviolet radiation.

REFERENCES:
patent: 4647819 (1987-03-01), Wyner et al.
patent: 4721888 (1988-01-01), Proud et al.
patent: 4808888 (1989-02-01), Wyner et al.
patent: 4812714 (1989-03-01), Keeffe et al.
patent: 4818915 (1989-04-01), Zaslavsky et al.
patent: 4897576 (1990-01-01), Iida et al.

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