Light emitting device

3 1 2 213 1 3A light emitting device of the present invention includes an LED substrate and a sealing resin portion which seals the LED substrate, the sealing resin portion having a silicone resin having a refractive index nto which a fluorescent material having a refractive index nand fine particle...

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Bibliographic Details
Main Author Okada, Naotada
Format Patent
LanguageEnglish
Published 18.03.2008
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Summary:3 1 2 213 1 3A light emitting device of the present invention includes an LED substrate and a sealing resin portion which seals the LED substrate, the sealing resin portion having a silicone resin having a refractive index nto which a fluorescent material having a refractive index nand fine particles having a refractive index nare added. In the light emitting device, a relationship of n>n>nholds in the refractive indexes nto n, and a particle size of the fine particles is not more than 1/10 of a wavelength of light emitted from the LED substrate.