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Phosphor 发明申请

2023-09-04 2400 338K 0

专利信息

申请日期 2025-07-12 申请号 JP2015533948
公开(公告)号 JPWO2015029305A1 公开(公告)日 2017-03-02
公开国别 JP 申请人省市代码 全国
申请人 パナソニックIPマネジメント株式会社
简介 This invention inexpensively provides a phosphor that comprises a material comprising oxides and nitrides, exhibits good red color reproduction, and emits little light outside the luminosity function. The composition formula for said phosphor is AE(l)Si(m)O(p)N(q) : Z, wherein AE represents at least one of the alkaline earth metals calcium, strontium, and barium; Si represents silicon, O represents oxygen, and N represents nitrogen; Z represents a rare earth element; and l, m, p, and q represent the amounts of the corresponding elements. This phosphor has an excitation spectrum in the 300-550 nm wavelength range, and the emission spectrum of this phosphor has a center wavelength of approximately 620 nm and a narrow full width at half maximum of approximately 80 nm. The chromaticity coordinates of this phosphor are (0.620, 0.378). Urea is used in the firing of this oxynitride phosphor.


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