Fluorescent lamp having reflective layer

Details Fluorescent lamp having reflective layer Fluorescent lamp having reflective layer

1996-08-19

1998-03-10

Dombroske, George M.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313486, 315344, H01J 162, H01J 6500

Patent

active

057265283

ABSTRACT:
A reflector fluorescent lamp with a reflective layer between the light-transmissive envelope and the phosphor layer(s). The reflective layer has a coating weight of at least 5, more preferably 6-8, mg/cm.sup.2 and is a blend of gamma alumina and alpha alumina, preferably 7-80 weight percent gamma alumina and 20-93 weight percent alpha alumina, more preferably 30-40 weight percent gamma alumina and 60-70 weight percent alpha alumina. The reflective layer finds particular utility in an electrodeless fluorescent lamp.

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