发光装置

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实施型态之发光装置, 具有 : 基板、被实装於基板的p主面之发光元件, 被形成於此发光元件上为直径r之半圆形, 含有下列式(1)之红色萤光体的红色萤光体层(M1-x1Eux1)aSibAlOcNd (1) (式(1)中、M为IA族元素、IIA族元素、IIIA族元素、除Al以外之IIIB族元素、稀土类元素、及IVB族元素所选择之元素。x1、a、b、c、d分别满足以下关系 : 0

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