Luminescent compositions, methods for making luminescent...

Details Luminescent compositions, methods for making luminescent... Luminescent compositions, methods for making luminescent...

2011-04-12

2011-04-12

Koslow, C. Melissa (Department: 1734)

Compositions

Inorganic luminescent compositions with organic...

C252S30140P, C252S30140R, C252S30140F, C106S031640, C106S031150, C106S031320, C428S690000, C283S092000

Reexamination Certificate

active

07922936

ABSTRACT:
A particulate luminescent composition is disclosed that, when excited by electromagnetic radiation at a first frequency, emits electromagnetic radiation at a second frequency equal to or within 1500 cm−1of the first frequency. The luminescent composition comprises substantially spherical particles having a weight average particle size of less than about 10 μm and a particle size distribution such that at least about 90 weight percent of the particles are not larger than twice the average particle size.

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