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    • 10. 发明授权
    • Light emitting device, light emitting device package, and lighting system
    • 发光装置,发光装置封装和照明系统
    • US08431945B2
    • 2013-04-30
    • US13092275
    • 2011-04-22
    • Hyun Min ChoiSun Kyung KimWoon Kyung Choi
    • Hyun Min ChoiSun Kyung KimWoon Kyung Choi
    • H01L33/00H01L21/00
    • H01L33/46H01L33/22H01L33/382H01L2224/48091H01L2924/00014
    • Disclosed are a light emitting device, a light emitting device package, and a lighting system. The light emitting device includes a light emitting structure including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer on, a light transmissive substrate having a refractive index lower than a refractive index of a compound semiconductor layer, and a mirror structure layer having a structure in which a first mirror layer having a first refractive index and a second mirror layer having a second refractive index different from the first refractive index are alternately stacked on each other. The first mirror layer has a thickness of W·λ/(4·n1·m), and the second mirror layer has a thickness of W·λ/(4·n2·m) in which the W represents a weight constant in a range of about 1.05 to about 1.25.
    • 公开了一种发光器件,发光器件封装和照明系统。 发光器件包括在其上具有折射率低于化合物半导体层的折射率的透光基板上的第一导电半导体层,有源层和第二导电半导体层的发光结构,以及反射镜 具有其中具有第一折射率的第一镜层和具有不同于第一折射率的第二折射率的第二镜层的结构的结构层彼此交替堆叠。 第一镜层的厚度为W·λ/(4·n1·m),第二镜层的厚度为W·λ/(4·n2·m),其中W表示重量常数 范围为约1.05至约1.25。