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    LED STRUCTURE WITH ENHANCED MIRROR REFLECTIVITY
    2.
    发明申请
    LED STRUCTURE WITH ENHANCED MIRROR REFLECTIVITY 审中-公开
    LED结构与增强反射率

    公开(公告)号：US20140167065A1

    公开(公告)日：2014-06-19

    申请号：US14185589

    申请日：2014-02-20

    申请人： CREE, INC.

    发明人： Michael Bergmann ,  Matthew Donofrio ,  Sten Heikman ,  Kevin S. Schneider ,  Kevin W. Haberern ,  John A. Edmond

    IPC分类号： H01L33/60 ,  H01L33/32 ,  H01L33/08

    CPC分类号： H01L33/60 ,  H01L33/08 ,  H01L33/32 ,  H01L33/382 ,  H01L33/385 ,  H01L33/405 ,  H01L33/46 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2933/0016 ,  H01L2924/00014

    摘要： Embodiments of the present invention are generally related to LED chips having improved overall emission by reducing the light-absorbing effects of barrier layers adjacent mirror contacts. In one embodiment, a LED chip comprises one or more LEDs, with each LED having an active region, a first contact under the active region having a highly reflective mirror, and a barrier layer adjacent the mirror. The barrier layer is smaller than the mirror, such that it does not extend beyond the periphery of the mirror. In another possible embodiment, an insulator is further provided, with the insulator adjacent the barrier layer and adjacent portions of the mirror not contacted by the active region or by the barrier layer. In yet another embodiment, a second contact is provided on the active region. In a further embodiment, the barrier layer is smaller than the mirror such that the periphery of the mirror is at least 40% free of the barrier layer, and the second contact is below the first contact and accessible from the bottom of the chip.

    摘要翻译： 本发明的实施例通常涉及通过减少与镜接触相邻的阻挡层的光吸收效果来改进总发射的LED芯片。 在一个实施例中，LED芯片包括一个或多个LED，其中每个LED具有有源区，在有源区下方的第一接触具有高反射镜，以及邻近反射镜的阻挡层。 阻挡层比镜子小，使得其不延伸超出反射镜的周边。 在另一个可能的实施例中，进一步提供绝缘体，其中绝缘体邻近阻挡层并且反射镜的相邻部分未被有源区域或阻挡层接触。 在另一个实施例中，在有源区上提供第二接触。 在另一个实施例中，阻挡层小于反射镜，使得反射镜的周边至少不含阻挡层40％，并且第二触点位于第一触点下方并且可从芯片的底部接近。

    SOLID STATE LIGHTING APPARATUS WITH HIGH SCOTOPIC / PHOTOPIC (S/P) RATIO
    4.
    发明申请
    SOLID STATE LIGHTING APPARATUS WITH HIGH SCOTOPIC / PHOTOPIC (S/P) RATIO 有权
    具有高光照/照度（S / P）比率的固态照明装置

    公开(公告)号：US20150097200A1

    公开(公告)日：2015-04-09

    申请号：US14045474

    申请日：2013-10-03

    申请人： Cree, Inc.

    发明人： Michael Bergmann ,  James Ibbetson ,  David Clatterbuck ,  Charles Draper ,  Nalini Gupta

    IPC分类号： H01L33/50 ,  H01L25/075 ,  H01L33/58

    CPC分类号： H01L33/50 ,  H01L25/0753 ,  H01L33/504 ,  H01L33/54 ,  H01L2224/48091 ,  H01L2224/48465 ,  H01L2224/49175 ,  H01L2924/12044 ,  H01L2933/0041 ,  H01L2924/00014 ,  H01L2924/00

    摘要： Solid state light emitting apparatuses include blue LEDs (including but not limited to a combination of short wavelength and long wavelength blue LEDs) to stimulate green lumiphors, with supplemental emissions by either red lumiphors and/or red solid state light emitters, to provide aggregate emissions with high S/P ratio (e.g., at least 1.95) and favorably high color rendering values (e.g., 85 or greater), preferably in combination with high brightness and high luminous efficacy. In certain embodiments, a solid state light emitting apparatus may be devoid of a LED having a peak wavelength of from 470-599 nm and/or devoid of lumiphors peak wavelengths in the yellow range. Multiple LEDs may be arranged in an emitter package.

    摘要翻译： 固态发光装置包括蓝色LED（包括但不限于短波长和长波长蓝色LED的组合），以刺激绿色荧光体，由红色发光体和/或红色固态发光体补充发射，以提供聚集排放 具有高S / P比（例如，至少1.95）和有利的高显色值（例如，85或更大），优选结合高亮度和高发光效率。 在某些实施例中，固态发光装置可以没有具有470-599nm的峰值波长和/或在黄色范围内没有发光体峰值波长的LED。 多个LED可以布置在发射器封装中。

    Solid state lighting apparatus with high scotopic/photopic (S/P) ratio
    9.
    发明授权
    Solid state lighting apparatus with high scotopic/photopic (S/P) ratio 有权
    具有高scotopic / photopic（S / P）比率的固态照明装置

    公开(公告)号：US09240528B2

    公开(公告)日：2016-01-19

    申请号：US14045474

    申请日：2013-10-03

    申请人： Cree, Inc.

    发明人： Michael Bergmann ,  James Ibbetson ,  David Clatterbuck ,  Charles Draper ,  Nalini Gupta

    IPC分类号： H01L29/20 ,  H01L33/50 ,  H01L25/075 ,  H01L33/54

    CPC分类号： H01L33/50 ,  H01L25/0753 ,  H01L33/504 ,  H01L33/54 ,  H01L2224/48091 ,  H01L2224/48465 ,  H01L2224/49175 ,  H01L2924/12044 ,  H01L2933/0041 ,  H01L2924/00014 ,  H01L2924/00

    摘要： Solid state light emitting apparatuses include blue LEDs (e.g., including short wavelength and long wavelength blue LEDs in combination) to stimulate green lumiphors, with supplemental emissions by red lumiphors and/or red solid state light emitters, to provide aggregate emissions with high S/P ratio (e.g., ≧1.95) and high color rendering values (e.g., ≧85), preferably in combination with high brightness and high luminous efficacy. In certain embodiments, a light emitting apparatus may be devoid of a LED having a peak wavelength of from 470-599 nm and/or devoid of lumiphors with peak wavelengths in the yellow range. Multiple LEDs may be arranged in an emitter package. A fabrication method includes mounting multiple solid state emitters (e.g., with a first blue and a second red emitter) to a common substrate, applying a stencil or mask over the second emitter, applying a lumiphoric material over the first emitter, and removing the stencil or mask.

    摘要翻译： 固态发光装置包括蓝色LED（例如，组合包括短波长和长波长蓝色LED），以刺激绿色荧光体，由红色荧光体和/或红色固态发光体补充发射，以提供高S / P比（例如≥1.95）和高显色值（例如，≥85），优选结合高亮度和高发光效率。 在某些实施例中，发光装置可以没有具有470-599nm的峰值波长的LED和/或没有峰值波长在黄色范围内的发光体。 多个LED可以布置在发射器封装中。 一种制造方法包括将多个固态发射器（例如，具有第一蓝色和第二红色发射器）安装到公共衬底上，在第二发射体上施加模板或掩模，在第一发射体上施加荧光材料，以及去除模板 或面具。