Conversion LED having a phosphor component based on an...

Details Conversion LED having a phosphor component based on an... Conversion LED having a phosphor component based on an...

2006-10-24

2006-10-24

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S486000, C313S512000, C257S098000

Reexamination Certificate

active

07126265

ABSTRACT:
The LED has phosphor particles (2) with a mean phosphor particle size d50selected from the range of from 0.1 μm, inclusive, to 1.5 μm, inclusive, in particular the phosphor particles having primary particles (4) with a mean particle size (5) selected from the range of from 0.1 μm, inclusive, to 1.0 μm, inclusive. The primary particles, which comprise, for example, an yttrium aluminum garnet (Y3Al5O12) doped with cerium, are agglomerated to form the phosphor particles.

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I. Matsubara et al., Preparation of Cr-doped Y3Al5O12Phosphors by Heterogeneous Precipitation Methods and Their Luminescent Properties, Materials Research Bulletin 35 (2000) 217-224.

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