Deep red phosphor for general illumination applications

Details Deep red phosphor for general illumination applications Deep red phosphor for general illumination applications

2006-04-11

2006-04-11

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S503000, C313S512000, C257S089000, C257S100000, C445S023000, C252S30140F

Reexamination Certificate

active

07026755

ABSTRACT:
A light emitting device including a UV semiconductor light source and a phosphor blend including a blue emitting phosphor, a green emitting phosphor and a deep red emitting phosphor comprising (Ba,Sr,Ca)3MgxSi2O8:Eu2+, Mn2+, wherein 1≦x≦2. Also disclosed is a phosphor blend comprising a blue emitting phosphor, a phosphor, a green emitting phosphor and a red emitting phosphor comprising (Ba,Sr,Ca)3MgxSi2O8:Eu2, Mn2+.

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Jong Su Kim, et al., “GaN-Based White-Light-Emitting Diodes Fabricated with a Mixture of Ba3MgSi2O8: EU2+and Sr2SiO4: EU2+Phosphors”, Japanese Journal of Applied Physics, vol. 43, No. 3, 2004, pp. 989-992.

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