HPS discharge lamp with simplified starting aid structure

Details HPS discharge lamp with simplified starting aid structure HPS discharge lamp with simplified starting aid structure

1988-12-30

1990-12-04

Laroche, Eugene R.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

315 73, 315 47, 313574, 313631, H01J 1734, H01J 1702

Patent

active

049756222

ABSTRACT:
An HPS sodium vapor discharge lamp having a starting aid consisting essentially of a metallic band disposed circumscribing one end of the lamp discharge vessel, and means for applying a voltage to the metallic bond for inducing ionization throughout the volume of the discharge vessel to facilitate lamp starting. The metallic band may define a heat shield for inhibiting thermal radiation from one end of the discharge vessel.

REFERENCES:
patent: 3872340 (1975-03-01), Collins
patent: 3900753 (1975-08-01), Richardson
patent: 4412152 (1983-10-01), Barakitis et al.
patent: 4498030 (1985-02-01), Govaerts et al.

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