To provide a light emitting device 11 in which color breakup and angle color difference can be improved.
At a position in a recess 20 opposing a light emitting diode element 13 in the vertical direction, a diffusion part 23 having a size comparable to the size of the light emitting diode element 13 when viewed in the vertical direction is provided. A phosphor layer 24 covering the light emitting diode element 13 and the diffusion part 23 is provided in the recess 20. The phosphor layer 24 has a phosphor which is excited with light from the light emitting diode element 13 to emit light. The diffusion part 23 diffuses blue light from the light emitting diode element 13 toward the vertical direction to reduce light distribution in the vertical direction and to increase light distribution in the direction inclining against the vertical direction. Color breakup and angle color difference are improved by reducing light distribution in the vertical direction and increasing light distribution in the inclining direction.
COPYRIGHT: (C)2007,JPO&INPIT
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Satoshi Kabazawa
Tetsuya Yamada
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