Rare earth phosphate and making method

Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides

Reexamination Certificate

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C423S263000

Reexamination Certificate

active

11099597

ABSTRACT:
A rare earth phosphate represented by the formula: RPO4wherein R is a rare earth element selected from Sc, Y, and lanthanoids of atomic numbers 57 to 71, wherein Mn substitutes for 0.01-15 atom % of R emits blue light when excited by vacuum-UV radiation.

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