| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the yield of light emitting devices excellent in optical characteristics. <P>SOLUTION: The light emitting device has a light emitting element, and a wavelength converting member having a fluorescent material which absorbs at least a portion of light emitted from the light emitting device and emits light of a different wavelength. The wavelength converting member includes the fluorescent material and a translucent inorganic material, and it is characterise in that the fluorescent material and the translucent inorganic material are stacked each in the form of a layer, stripe, grid, concentric circle or dot, or stacked combining at least two or more of these shapes. Further, the wavelength converting member comprises at least a first layer, a second layer, and a third layer of more different refractive index than that of the second layer. These layers are all stacked in this order from the side of the light emitting element, with the first layer having a shape of a lens. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
