JP2010053311A5 - - Google Patents
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- JP2010053311A5 JP2010053311A5 JP2008222402A JP2008222402A JP2010053311A5 JP 2010053311 A5 JP2010053311 A5 JP 2010053311A5 JP 2008222402 A JP2008222402 A JP 2008222402A JP 2008222402 A JP2008222402 A JP 2008222402A JP 2010053311 A5 JP2010053311 A5 JP 2010053311A5
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- light emitting
- emitting phosphor
- infrared
- infrared light
- substituted
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Description
請求項３記載の赤外発光蛍光体は、請求項１または２記載の赤外発光蛍光体において、塩素（Ｃｌ）の一部を臭素（Ｂｒ）で置換したものである。
そして、請求項１または２記載の赤外発光蛍光体において、塩素（Ｃｌ）の一部を臭素（Ｂｒ）で置換することで、従来の９８５ｎｍ付近に主発光ピーク波長を有する赤外発光蛍光体と同等またはそれ以上の発光強度を有し、かつ１０２０ｎｍ付近に主発光ピーク波長を有する赤外発光蛍光体となる。
The infrared-emitting phosphor according to claim 3 is the infrared-emitting phosphor according to claim 1 or 2, wherein a part of chlorine (Cl) is substituted with bromine (Br).
3. The infrared light emitting phosphor according to claim 1 or 2, wherein a part of chlorine (Cl) is replaced by bromine (Br) to thereby have a conventional main light emission peak wavelength near 985 nm. And an infrared emission phosphor having a main emission peak wavelength in the vicinity of 1020 nm.
請求項３記載の赤外発光蛍光体によれば、請求項１または２記載の赤外発光蛍光体において、塩素（Ｃｌ）の一部を臭素（Ｂｒ）で置換したことで、従来の９８５ｎｍ付近に主発光ピーク波長を有する赤外発光蛍光体と同等またはそれ以上の発光強度を有し、かつ１０２０ｎｍ付近に主発光ピーク波長を有する赤外発光蛍光体を得ることができる。 According to the infrared light emitting phosphor according to claim 3, in the infrared light emitting phosphor according to claim 1 or 2, a part of chlorine (Cl) is substituted with bromine (Br), so that the conventional vicinity of 985 nm is obtained. Thus, an infrared light emitting phosphor having a light emission intensity equal to or higher than that of an infrared light emitting phosphor having a main light emission peak wavelength and having a main light emission peak wavelength in the vicinity of 1020 nm can be obtained.
表３に示すように、（Ｌａ，Ｙｂ３＋，Ｎｄ３＋）ＯＣｌ蛍光体であって、Ｙｂのモル比ｘおよびＮｄのモル比ｙを様々に変化させた場合、Ｙｂのモル比ｘは０．０１から０．０７の範囲にあることが比較例１ないし比較例２より発光強度が同等か上回っており、好ましいことがわかる。また、上記表２および表３より、Ｎｄのモル比ｙはＹｂのモル比ｘに依存し、０．１５ｘからｘの範囲にあることが好ましいことがわかる。 As shown in Table 3, in the case of a (La, Yb 3+ , Nd 3+ ) OCl phosphor, when the molar ratio x of Yb and the molar ratio y of Nd were varied, the molar ratio x of Yb was 0. It can be seen that the emission intensity in the range of 01 to 0.07 is equal to or higher than that of Comparative Examples 1 and 2, which is preferable. From Tables 2 and 3, it can be seen that the molar ratio y of Nd depends on the molar ratio x of Yb and is preferably in the range of 0.1 5 x to x.
Claims (3)
ｘは、０．０１≦ｘ≦０．０７であり、
ｙは、０．１５ｘ≦ｙ≦ｘである
ことを特徴とした赤外発光蛍光体。 A phosphor having a chemical formula represented by (La 1-xy Yb x Nd y ) OCl,
x is 0.01 ≦ x ≦ 0.07,
y is an infrared light emitting phosphor characterized in that 0.15x ≦ y ≦ x.
ことを特徴とした請求項１記載の赤外発光蛍光体。 The infrared light emitting phosphor according to claim 1, wherein a part of lanthanum (La) is substituted with at least one element of yttrium (Y) and gadolinium (Gd).
ことを特徴とした請求項１または２記載の赤外発光蛍光体。 The infrared phosphor according to claim 1 or 2, wherein a part of chlorine (Cl) is substituted with bromine (Br).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008222402A JP5143673B2 (en) | 2008-08-29 | 2008-08-29 | Infrared light emitting phosphor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008222402A JP5143673B2 (en) | 2008-08-29 | 2008-08-29 | Infrared light emitting phosphor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010053311A JP2010053311A (en) | 2010-03-11 |
| JP2010053311A5 true JP2010053311A5 (en) | 2011-09-22 |
| JP5143673B2 JP5143673B2 (en) | 2013-02-13 |
Family
ID=42069550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008222402A Active JP5143673B2 (en) | 2008-08-29 | 2008-08-29 | Infrared light emitting phosphor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5143673B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6003335B2 (en) * | 2012-07-26 | 2016-10-05 | 大日本印刷株式会社 | Information recording medium reading method and information recording medium |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3607770A (en) * | 1968-10-23 | 1971-09-21 | Gen Electric | Gaseous reaction process for the production of rare earth oxyhalide and oxide luminescent materials |
| US3617743A (en) * | 1968-10-23 | 1971-11-02 | Gen Electric | X-ray image convertors utilizing lanthanum and gadolinium oxyhalide luminescent materials activated with terbium |
| JPS5252881A (en) * | 1975-10-28 | 1977-04-28 | Dainippon Toryo Co Ltd | Intensifying screen for rdiation |
| JPS6029996B2 (en) * | 1977-08-22 | 1985-07-13 | 株式会社日立製作所 | Information reading method |
| JPH07216354A (en) * | 1994-01-31 | 1995-08-15 | Nippon Itsutoriumu Kk | Luminescent material |
| JP4310243B2 (en) * | 2004-06-23 | 2009-08-05 | 株式会社 日立ディスプレイズ | Liquid crystal display |
-
2008
- 2008-08-29 JP JP2008222402A patent/JP5143673B2/en active Active
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