| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-emitting element capable of preventing wavelength-converted light from being annihilated to be absorbed in a phosphor again, preventing the wavelength-converted light from being annihilated to be incident on LED again, and further preventing light emitted from the LED emitting long-wavelength light from being lost by the LED and the phosphor emitting short-wavelength light. <P>SOLUTION: The light-emitting element includes the LED which is arranged on a substrate and emits a light of a first wavelength; a transparent molding portion which covers the LED; an underlayer arranged on the transparent molding portion, of a wavelength converting material containing the phosphor which converts the light of the first wavelength emitted from the LED into a light of a second wavelength which is longer than the first wavelength; and an upper layer arranged on the underlayer of the wavelength conversion material, of a wavelength conversion material containing the phosphor which converts the light of the first wavelength, emitted from the LED, into a light of a third wavelength which is longer than the first wavelength and shorter than the second wavelength. <P>COPYRIGHT: (C)2008,JPO&INPIT |
