CPC G03B 21/204 (2013.01) [H01L 33/005 (2013.01); H01L 33/502 (2013.01); H01L 2933/0041 (2013.01)] | 13 Claims |
1. A phosphor particle configured to emit fluorescence longer in wavelength than excitation light entering the phosphor particle, comprising:
a concave portion which is no smaller than 0.1 times as large as the wavelength of the fluorescence and no larger than 10 times as large as the wavelength of the fluorescence, the concave portion being disposed on a surface of the phosphor particle.
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