Ceramic composite material for optical conversion and use thereof
AssigneeUbe Industries, Ltd.
InventorsShin-ichi Sakata, Yoshiharu Waku
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Abstract
A ceramic composite material for light conversion, which is a solidified body comprising two or more matrix phases with respective components being two or more oxides selected from the group consisting of metal oxides and complex oxides each produced from two or more metal oxides, wherein at least one of the matrix phases is a phosphor phase containing an activated oxide. The solidified body is preferably obtained by the unidirectional solidification method. The ceramic composite material for light conversion is excellent in brightness, light-mixing property, heat resistance and ultraviolet light resistance.
Claims20
A light conversion member having a unitary body consisting of a ceramic composite material, said ceramic composite material being a solidified body comprising two or more matrix phases with respective components being two or more oxides selected from the group consisting of metal oxides and complex oxides each produced from two or more metal oxides, and at least one of said matrix phases being a phosphor phase comprising an activated oxide.
A light-emitting diode comprising a light-emitting diode chip, an electrode for supplying an electric current to the light-emitting diode chip, and a light conversion member disposed on the light emission side of the light-emitting diode for converting the color of light emitted from the light-emitting diode chip into a different color, wherein said light conversion member consists of a body of a ceramic composite material body for light conversion which comprises two or more matrix phases with respective components being two or more oxides selected from the group consisting of metal oxides and complex oxides each produced from two or more metal oxides and in which at least one of said matrix phases is a phosphor phase comprising an activated oxide.
Dependencies are inferred from the claim text.