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    • 9. 发明授权
    • Wavelength conversion component with a diffusing layer
    • 具有扩散层的波长转换组件
    • US08604678B2
    • 2013-12-10
    • US13273212
    • 2011-10-13
    • Bing DaiXianglong YuanGang WangCharles EdwardsJames Caruso
    • Bing DaiXianglong YuanGang WangCharles EdwardsJames Caruso
    • H01J5/16
    • F21V9/30F21Y2115/10
    • A light emitting device comprises at least one solid-state light source (LED) operable to generate excitation light and a wavelength conversion component located remotely to the at least one source and operable to convert at least a portion of the excitation light to light of a different wavelength. The wavelength conversion component includes a light transmissive substrate having a wavelength conversion layer comprising particles of at least one photoluminescence material and a light diffusing layer comprising particles of a light diffractive material. This approach of using the light diffusing layer in combination with the wavelength conversion layer solves the problem of variations or non-uniformities in the color of emitted light with emission angle.
    • 一种发光器件包括至少一个可操作以产生激发光的固态光源(LED)和远离该至少一个源的波长转换元件,并且可操作以将激发光的至少一部分转换为 不同波长。 波长转换组件包括具有包括至少一种光致发光材料的颗粒和包含光衍射材料颗粒的光漫射层的波长转换层的透光基板。 使用光漫射层与波长转换层组合的这种方法解决了具有发射角的发射光的颜色的变化或不均匀性的问题。