| 摘要 |
In a white semiconductor light-emitting device, an ultraviolet light-emitting element 3 is used as a light-emitting element, and a phosphor layer 6 is formed that has a blue-light-emitting phosphor 61 and a yellow-light-emitting phosphor 62 mixedly diffused therein. This structure helps reduce variations in the produced white light among individual devices and enhance the productivity and light conversion efficiency of the device. For higher light conversion efficiency, the blue-light-emitting and yellow-light-emitting phosphors 61 and 62 are, preferably, phosphors that absorb ultraviolet light and emit blue and yellow light respectively.
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