Neodymium, ytterbium and/or erbium containing organic fluorescent compositions
AssigneeHitachi Maxell, Ltd.
InventorsToshio Oshima, Yukinori Yamada, Shoji Saibara, Takanori Kamoto, Tomio Nabeshima
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Abstract
A fluorescent substance of the following general formula: LnxA1−XPO4 wherein Ln represents at least one element selected from the group consisting of Nd, Yb and Er; A represents at least one element selected from the group consisting of Y, La, Gd, Bi, Ce, Lu, In and Tb; and X represents a value within the range of 0.01 to 0.99.
Claims4
A fluorescent substance characterized in that it comprises at least one organic substance containing a rare earth element selected from the group consisting of Nd, Yb and/or Er, and is combined with at least one organic substance having at least one absorption band within the infrared region of light.
A fluorescent composition characterized in that it comprises a fluorescent substance containing at least one organic substance containing a rare earth element selected from the group consisting of Nd, Yb and/or Er, and is combined with at least one organic substance having at least one absorption band within the infrared region of light, and an organic binder.
Dependencies are inferred from the claim text.