Blue-green phosphor for fluorescent lighting applications
Patent
·
OSTI ID:1175278
A fluorescent lamp including a phosphor layer including Sr.sub.4 Al.sub.14 O.sub.25 :Eu.sup.2+ (SAE) and at least one of each of a red, green and blue emitting phosphor. The phosphor layer can optionally include an additional, deep red phosphor and a yellow emitting phosphor. The resulting lamp will exhibit a white light having a color rendering index of 90 or higher with a correlated color temperature of from 2500 to 10000 Kelvin. The use of SAE in phosphor blends of lamps results in high CRI light sources with increased stability and acceptable lumen maintenance over, the course of the lamp life.
- Research Organization:
- General Electric Co., Schenectady, NY (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-99FT40632
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Number(s):
- 6,867,536
- Application Number:
- 10/317,372
- OSTI ID:
- 1175278
- Country of Publication:
- United States
- Language:
- English
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