UV-emitting phosphor blend and tanning lamp containing same

Details UV-emitting phosphor blend and tanning lamp containing same UV-emitting phosphor blend and tanning lamp containing same

2006-10-17

2006-10-17

Guharay, Karabi (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S486000

Reexamination Certificate

active

07122952

ABSTRACT:
A UV-emitting phosphor blend is provided which comprises a mixture of at least two UVA-emitting phosphors selected from SrB4O7:Eu, YPO4:Ce, and BaSi2O5:Pb wherein the sum of the weight percentages of the phosphors in the mixture equals 100%. The phosphor blend may additionally contain an amount of a UVB-emitting phosphor in an amount from 0 to 12 wt. % of the mixture. Tanning lamps containing these blends exhibit increases in initial UVA output and UVA maintenance.

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