| 摘要 |
A fluorescent lamp with an ultraviolet reflecting barrier layer between the glass envelope and the phosphor layer(s). The barrier layer is a blend of gamma alumina and alpha alumina, preferably 5-80 weight percent gamma alumina and 20-95 weight percent alpha alumina. The barrier layer is effective to reflect UV light back into the phosphor layer(s), leading to improved phosphor utilization and more efficient production of visible light.
|
