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    • 7. 发明授权
    • Light emitting module
    • 发光模块
    • US08704261B2
    • 2014-04-22
    • US13724991
    • 2012-12-21
    • Koito Manufacturing Co., Ltd.
    • Takaaki KomatsuYasuaki TsutsumiHisayoshi Daicho
    • H01L33/50
    • H01L33/505F21S41/143H01L33/44H01L33/507H01L2924/0002H01L2924/00
    • A light emitting module includes: an LED chip; a plate-shaped phosphor layer that is provided so as to face the light emitting surface of the LED chip and is configured to convert the wavelength of the light emitted by the LED chip; and a filter layer that is formed, of the surfaces of the phosphor layer, on at least one of the surface that faces the LED chip and the side surface, and that is configured to transmit the light emitted from the LED chip and to reflect the light whose wavelength has been converted by the phosphor layer. The filter layer is formed such that a ratio of the energy of the emitted light within a range of ±60° with respect to the front direction to the total energy of emitted light is 80% or more.
    • 发光模块包括:LED芯片; 被设置为面对所述LED芯片的发光面并被配置为转换由所述LED芯片发射的光的波长的板状荧光体层; 以及在所述荧光体层的表面的至少一个所述面对所述LED芯片和所述侧面的表面上形成的滤光层,被配置为透射从所述LED芯片发射的光并反射所述滤光层 其波长已被磷光体层转换的光。 滤光层形成为使发光的能量相对于正面方向±60°的范围与发射光的总能量的比例为80%以上。