| 摘要 |
PCT No. PCT/JP95/00463 Sec. 371 Date Nov. 17, 1995 Sec. 102(e) Date Nov. 17, 1995 PCT Filed Mar. 17, 1995 PCT Pub. No. WO95/25148 PCT Pub. Date Sep. 21, 1995A 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.
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