Konoshima Chemical Co., Ltd.

Atsuko Endo

Takagimi Yanagitani

Katsuhiro Muramatsu

Kazunari Shiota

Provided is a ceramic composition capable of achieving a light scattering function while maintaining optical properties at a high level. The ceramic composition comprises a fluorescence phase comprising a fluorescent material and a light-scattering phase comprising a lanthanum oxide. The lanthanum oxide may be, for example, at least one selected from LaAlOand LaO. The ratio of the fluorescent material (or the fluorescence phase) to the lanthanum oxide (or the light-scattering phase), the former/the latter, may be 99.9/0.1 to 50/50 in terms of volume ratio.

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Mitoyo, Japan

Atsuko Endo