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    • 7. 发明申请
    • Light emitting apparatus with open loop control
    • 具有开环控制的发光装置
    • US20090015137A1
    • 2009-01-15
    • US12068577
    • 2008-02-08
    • Hung-Yuan SuRu-Shi Liu
    • Hung-Yuan SuRu-Shi Liu
    • H01J1/62
    • H01J1/63H01L33/504
    • A light emitting apparatus includes a blue light emitting diode (LED), a first and second phosphor layers. The second phosphor layer is between the blue LED and the first phosphor layer. When a blue beam of a shorter wavelength excites the phosphor layers, the excitation efficiency of the first phosphor layer is greater than that of the second phosphor layer. When a blue beam of a longer wavelength excites the phosphor layers, the excitation efficiency of the first phosphor layer is less than that of the second phosphor layer. Moreover, the wavelength of the peak intensity of the light beam from the first phosphor layer is shorter than that of the second phosphor layer. And, the dividing value between the shorter wavelength and the longer wavelength is within the range from a first wavelength to a second wavelength.
    • 发光装置包括蓝色发光二极管(LED),第一和第二荧光体层。 第二荧光体层位于蓝色LED和第一荧光体层之间。 当较短波长的蓝色光束激发荧光体层时,第一荧光体层的激发效率大于第二荧光体层的激发效率。 当较长波长的蓝色光束激发荧光体层时,第一荧光体层的激发效率小于第二荧光体层的激发效率。 此外,来自第一荧光体层的光束的峰值强度的波长比第二荧光体层的波长短。 并且,较短波长与较长波长的分割值在从第一波长到第二波长的范围内。
    • 10. 发明授权
    • Light emitting apparatus with open loop control
    • 具有开环控制的发光装置
    • US07838896B2
    • 2010-11-23
    • US12068577
    • 2008-02-08
    • Hung-Yuan SuRu-Shi Liu
    • Hung-Yuan SuRu-Shi Liu
    • H01J1/62H01L33/44
    • H01J1/63H01L33/504
    • A light emitting apparatus includes a blue light emitting diode (LED), a first and second phosphor layers. The second phosphor layer is between the blue LED and the first phosphor layer. When a blue beam of a shorter wavelength excites the phosphor layers, the excitation efficiency of the first phosphor layer is greater than that of the second phosphor layer. When a blue beam of a longer wavelength excites the phosphor layers, the excitation efficiency of the first phosphor layer is less than that of the second phosphor layer. Moreover, the wavelength of the peak intensity of the light beam from the first phosphor layer is shorter than that of the second phosphor layer. And, the dividing value between the shorter wavelength and the longer wavelength is within the range from a first wavelength to a second wavelength.
    • 发光装置包括蓝色发光二极管(LED),第一和第二荧光体层。 第二荧光体层位于蓝色LED和第一荧光体层之间。 当较短波长的蓝色光束激发荧光体层时,第一荧光体层的激发效率大于第二荧光体层的激发效率。 当较长波长的蓝色光束激发荧光体层时,第一荧光体层的激发效率小于第二荧光体层的激发效率。 此外,来自第一荧光体层的光束的峰值强度的波长比第二荧光体层的波长短。 并且,较短波长与较长波长的分割值在从第一波长到第二波长的范围内。