Electric lamp with reduced internal photoelectron production

Details Electric lamp with reduced internal photoelectron production Electric lamp with reduced internal photoelectron production

1988-04-15

1989-09-12

Yusko, Donald J.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313626, H01J 6144

Patent

active

048663280

ABSTRACT:
An HID lamp having parts of its internal metal support covered with a layer of material having a photoelectric work function greater than 5.0 electron volts to reduce internal photoelectron production. The material may be granular zirconium oxide having a photoelectric work function of 5.8 eV.

REFERENCES:
patent: 3484637 (1969-12-01), van Boort et al.
patent: 3780331 (1973-12-01), Knochel et al.
patent: 3988628 (1976-10-01), Clausen
patent: 4006378 (1977-02-01), Silverstein et al.
patent: 4171498 (1979-10-01), Fromm et al.
patent: 4469980 (1984-09-01), Johnson

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