| 摘要 |
Disclosed is a light emission device (100) comprising: an LED chip (1) which can emit light having a specific wavelength; and a wavelength conversion unit into which the light emitted from the LED chip (1) enters and which can convert the entered light into light having a specific wavelength. The wavelength conversion unit is formed by a ceramic layer (4) that is produced using a phosphor-containing polysilazane as a raw material, the surface layer part of the ceramic layer (4) has a phosphor-free layer (41) which has a thickness of 0.05 to 20 µm inclusive.
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