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Patent Searching and Data


Title:
FLUOROPHOR AND METHOD FOR PRODUCTION THEREOF AND ILLUMINATOR
Document Type and Number:
WIPO Patent Application WO/2007/004492
Kind Code:
A1
Abstract:
A fluorophor comprising, as a main component, an α type sialon crystal which contains at least A element (wherein A represents one or more elements selected from among Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Er, Tm and Yb), M element (wherein M represents one or more elements selected from among Li, Na, Mg, Ca, Y, La, Gd and Lu), Si, Al, oxygen and nitrogen, and is represented by the general formulae: (Mx, Ay)(Si12-(m+n)Alm+n)(OnN16-n) (1) m = δM×x + δA×y (2) 0.2 ≤ x ≤ 2.4 (3) 0.001 ≤ y ≤ 0.4 (4) and 0.5×m < n ≤ 4 (5). The fluorophor is reduced in the lowering of brightness, and is useful for a white LED and the like.

Inventors:
HIROSAKI, Naoto (2-1 Sengen 1-chome Tsukuba-sh, Ibaraki 47, 3050047, JP)
広崎 尚登 (〒47 茨城県つくば市千現1丁目2-1独立行政法人 物質・材料研究機構内 Ibaraki, 3050047, JP)
XIE, Rong-Jun (2-1 Sengen 1-chome Tsukuba-sh, Ibaraki 47, 3050047, JP)
Application Number:
JP2006/312922
Publication Date:
January 11, 2007
Filing Date:
June 28, 2006
Export Citation:
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Assignee:
National Institute for Materials Science (2-1 Sengen 1-chome, Tsukuba-shi Ibaraki, 47, 3050047, JP)
独立行政法人 物質・材料研究機構 (〒47 茨城県つくば市千現1丁目2-1 Ibaraki, 3050047, JP)
HIROSAKI, Naoto (2-1 Sengen 1-chome Tsukuba-sh, Ibaraki 47, 3050047, JP)
広崎 尚登 (〒47 茨城県つくば市千現1丁目2-1独立行政法人 物質・材料研究機構内 Ibaraki, 3050047, JP)
International Classes:
C09K11/64; C09K11/08; C09K11/80; H01J1/63; H01L51/50; H05B33/12; H05B33/14; H01L33/50
Foreign References:
JP2004238505A2004-08-26
JP2004238506A2004-08-26
JP2005036038A2005-02-10
JP2004067837A2004-03-04
Attorney, Agent or Firm:
AIKAWA, Toshihiko (Nakano Bldg. No.3, 12-5 Minami Ikebukuro, 2-chom, Toshima-ku Tokyo 22, 1710022, JP)
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