Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
Patent
1981-10-29
1988-12-20
Sikes, William L.
Electric lamp and discharge devices
With optical device or special ray transmissive envelope
Reflector
313635, H01J 516, H01J 6140, H01K 126, H01K 130
Patent
active
047927160
ABSTRACT:
A high-pressure mercury vapor lamp uses an envelope with an elliptical region which is coated on its interior surface. The coating reflects energy in the violet and passes energy in the green and yellow-green. By suppressing electron transitions which yield violet radiation, transitions which yield green and yellow-green radiation are enhanced, increasing lumen output by redistributing energy to more luminous lines in the line spectrum of mercury vapor plasma.
REFERENCES:
patent: 4006378 (1977-02-01), Silverstein et al.
patent: 4308186 (1981-12-01), Schreurs et al.
patent: 4375605 (1983-03-01), Fontana et al.
Duro-Test Corporation
Sikes William L.
Wise Robert E.
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