| US 7,579,765 B2 | ||
| Orange-emitting phosphor | ||
| Takeshi Takahara, Tokyo (Japan); Yasushi Aoki, Tokyo (Japan); and Takashi Murase, Tokyo (Japan) | ||
| Assigned to Nemoto & Company, Ltd., Tokyo (Japan) | ||
| Filed on Jul. 09, 2008, as Appl. No. 12/169,661. | ||
| Application 12/169661 is a continuation in part of application No. 11/834720, filed on Aug. 07, 2007, abandoned. | ||
| Claims priority of application No. 2006-275356 (JP), filed on Oct. 06, 2006. | ||
| Prior Publication US 2008/0274029 A1, Nov. 06, 2008 | ||
| Int. Cl. H01J 63/04 (2006.01) | ||
| U.S. Cl. 313—485 [313/486; 252/301.6; 252/301.4] | 5 Claims |
| 1. An orange-emitting phosphor represented by a general formula of
a(Sr1-xEux(1-y)Ybxy)O.(Si(1-z)Zrz)O2, wherein
a is 2.9≤a≤3.1,
x is 0.005≤x≤0.1,
y is 0.001≤y≤0.1, and
z is 0.00001≤z≤0.01, and
wherein Europium (Eu) is divalent (Eu2+) and Ytterbium (Yb) is divalent (Yb2+).
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