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    • 4. 发明授权
    • Composite cavity for enhanced efficiency of up-conversion
    • 复合腔可提高转换效率
    • US07804640B1
    • 2010-09-28
    • US12124620
    • 2008-05-21
    • Michael BassDennis G. Deppe
    • Michael BassDennis G. Deppe
    • G02B27/14H01L29/06H01L21/02H01L33/00
    • G02B27/017G02B2027/0112G02B2027/0118H01L27/153H01L33/50
    • Methods, apparatus and systems for an up-converter resonant cavity light emitting diode device includes a semiconductor light source, an up-converter to form the light emitter with up-converting materials and an electrical source coupled with the semiconductor light source for providing electrical energy to the semiconductor light source to provide a desired wavelength emitted light. The semiconductor light source is a resonant cavity light emitting diode or laser that emits an approximately 975 nm wavelength to provide electrical and optical confinement to the semiconductor light source to form a resonant cavity up-converting light emitting diode (UC/RCLED). Rows and columns of electrodes provide active matrix addressing of plural sets of UC/RCLEDs for display devices. The up-converter resonant cavity light emitting diode device has applications in head mounted projection display optical system using spectrally selective beam splitters to eliminate spectral overlap between colors and to combine the red, green and blue beams.
    • 用于上变频器谐振腔发光二极管器件的方法,装置和系统包括半导体光源,用于形成具有上变换材料的光发射器的上变换器和与半导体光源耦合以提供电能的电源 到半导体光源以提供期望的波长发射光。 半导体光源是发射大约975nm波长的谐振腔发光二极管或激光器,以向半导体光源提供电和光限制,以形成谐振腔上转换发光二极管(UC / RCLED)。 电极的行和列为显示设备的多组UC / RCLED提供有源矩阵寻址。 上变频谐振腔发光二极管装置在头安装投影显示光学系统中的应用是使用光谱选择性分光器来消除颜色之间的光谱重叠并且组合红色,绿色和蓝色光束。