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    RE-EMITTING SEMICONDUCTOR CONSTRUCTION WITH ENHANCED EXTRACTION EFFICIENCY
    1.
    发明申请
    RE-EMITTING SEMICONDUCTOR CONSTRUCTION WITH ENHANCED EXTRACTION EFFICIENCY 有权
    重新发射半导体结构，具有提高效率

    公开(公告)号：US20120074381A1

    公开(公告)日：2012-03-29

    申请号：US13264924

    申请日：2010-04-30

    申请人： Zhaohui Yang ,  Yasha Yi ,  Catherine A. Leatherdale ,  Michael A. Haase ,  Terry L. Smith

    发明人： Zhaohui Yang ,  Yasha Yi ,  Catherine A. Leatherdale ,  Michael A. Haase ,  Terry L. Smith

    IPC分类号： H01L33/04 ,  H01L33/58

    CPC分类号： H01L33/08 ,  H01L25/167 ,  H01L33/0087 ,  H01L33/20 ,  H01L2924/0002 ,  H01L2933/0083 ,  H01L2924/00

    摘要： A stack of semiconductor layers (310) forms a re-emitting semiconductor construction (RSC). The stack (310) includes an active region (316) that converts light at a first wavelength to light at a second wavelength, the active region (316) including at least one potential well. The stack (310) also includes an inactive region (318) extending from an outer surface of the stack to the active region. Depressions (326) are formed in the stack (310) that extend from the outer surface into the inactive region (318). An average depression depth is at least 50% of a thickness of the inactive region. Alternatively, the average depression depth is at least 50% of a nearest potential well distance. Still other alternative characterizations of the depressions (326) are also disclosed. The depressions (326) may have at least a 40% packing density in plan view. The depressions (326) may also have a substantial portion of their projected surface area associated with obliquely inclined surfaces.

    摘要翻译： 一叠半导体层（310）形成再发射半导体结构（RSC）。 堆叠（310）包括将第一波长的光转换成第二波长的光的有源区（316），该有源区（316）包括至少一个势阱。 堆叠（310）还包括从堆叠的外表面延伸到活动区域的非活性区域（318）。 凹陷（326）形成在从外表面延伸到非活动区域（318）的堆叠（310）中。 平均凹陷深度为非活性区域的厚度的至少50％。 或者，平均凹陷深度为最近的潜在井距的至少50％。 还公开了凹陷（326）的其他替代表征。 在平面图中，凹陷（326）可以具有至少40％的包装密度。 凹陷（326）也可以具有与倾斜倾斜表面相关联的其投影表面积的大部分。

    Re-emitting semiconductor construction with enhanced extraction efficiency
    2.
    发明授权
    Re-emitting semiconductor construction with enhanced extraction efficiency 有权
    重新发射半导体结构，提高了提取效率

    公开(公告)号：US08461568B2

    公开(公告)日：2013-06-11

    申请号：US13264924

    申请日：2010-04-30

    申请人： Zhaohui Yang ,  Yasha Yi ,  Catherine A. Leatherdale ,  Michael A. Haase ,  Terry L. Smith

    发明人： Zhaohui Yang ,  Yasha Yi ,  Catherine A. Leatherdale ,  Michael A. Haase ,  Terry L. Smith

    IPC分类号： H01L33/00

    CPC分类号： H01L33/08 ,  H01L25/167 ,  H01L33/0087 ,  H01L33/20 ,  H01L2924/0002 ,  H01L2933/0083 ,  H01L2924/00

    摘要： A stack of semiconductor layers forms a re-emitting semiconductor construction (RSC). The stack includes an active region that converts light at a first wavelength to light at a second wavelength, the active region including at least one potential well. The stack also includes an inactive region extending from an outer surface of the stack to the active region. Depressions are formed in the stack that extend from the outer surface into the inactive region. An average depression depth is at least 50% of a thickness of the inactive region or at least 50% of a nearest potential well distance. The depressions may have at least a 40% packing density in plan view. The depressions may also have a substantial portion of their projected surface area associated with obliquely inclined surfaces.

    摘要翻译： 一叠半导体层形成再发射半导体结构（RSC）。 堆叠包括将第一波长的光转换成第二波长的光的有源区，该有源区包括至少一个势阱。 堆叠还包括从堆叠的外表面延伸到活动区域的无效区域。 在堆叠中形成凹陷，其从外表面延伸到非活性区域。 平均凹陷深度为无活性区域的厚度的至少50％或最近的潜在井距离的至少50％。 在平面图中，凹陷可以具有至少40％的包装密度。 凹陷部也可以具有与倾斜倾斜表面相关联的其投影表面积的大部分。

    RE-EMITTING SEMICONDUCTOR CARRIER DEVICES FOR USE WITH LEDS AND METHODS OF MANUFACTURE
    4.
    发明申请
    RE-EMITTING SEMICONDUCTOR CARRIER DEVICES FOR USE WITH LEDS AND METHODS OF MANUFACTURE 有权
    重新发射用于LED的半导体载体装置及其制造方法

    公开(公告)号：US20120097983A1

    公开(公告)日：2012-04-26

    申请号：US13264487

    申请日：2010-05-03

    申请人： Terry L. Smith ,  Catherine A. Leatherdale ,  Michael A. Haase ,  Thomas J. Miller ,  Xiaoguang Sun ,  Zhaohui Yang ,  Todd A. Ballen ,  Amy S. Barnes

    发明人： Terry L. Smith ,  Catherine A. Leatherdale ,  Michael A. Haase ,  Thomas J. Miller ,  Xiaoguang Sun ,  Zhaohui Yang ,  Todd A. Ballen ,  Amy S. Barnes

    IPC分类号： H01L33/60 ,  H01L33/48

    CPC分类号： H01L31/055 ,  H01L33/0079 ,  H01L33/502 ,  H01L2224/48463 ,  H01L2933/0041 ,  H05B33/10 ,  Y02E10/52

    摘要： Re-emitting semiconductor constructions (RSCs) for use with LEDs, and related devices, systems, and methods are disclosed. A method of fabrication includes providing a semiconductor substrate, forming on a first side of the substrate a semiconductor layer stack, attaching a carrier window to the stack, and removing the substrate after the attaching step. The stack includes an active region adapted to convert light at a first wavelength λ1 to visible light at a second wavelength λ2, the active region including at least a first potential well. The attaching step is carried out such that the stack is disposed between the substrate and the carrier window, which is transparent to the second wavelength λ2. The carrier window may also have a lateral dimension greater than that of the stack. The removal step is carried out so as to provide an RSC carrier device that includes the carrier window and the stack.

    摘要翻译： 公开了与LED一起使用的重新发射半导体结构（RSCs）以及相关的器件，系统和方法。 一种制造方法包括提供半导体衬底，在衬底的第一侧上形成半导体层堆叠，将载体窗口附接到堆叠，以及在附接步骤之后移除衬底。 所述堆叠包括适于将第一波长λ1的光转换成第二波长λ2的可见光的有源区，所述有源区至少包括第一势阱。 执行安装步骤使得堆叠被布置在对第二波长λ2透明的基板和载体窗口之间。 载体窗口也可以具有大于堆叠的横向尺寸的横向尺寸。 执行去除步骤以提供包括载体窗口和堆叠的RSC载体装置。

    Diffractive luminaires
    6.
    发明授权
    Diffractive luminaires 有权
    衍射灯具

    公开(公告)号：US08944662B2

    公开(公告)日：2015-02-03

    申请号：US13572835

    申请日：2012-08-13

    申请人： David S. Thompson ,  Zhaohui Yang ,  Matthew S. Stay

    发明人： David S. Thompson ,  Zhaohui Yang ,  Matthew S. Stay

    IPC分类号： F21V8/00

    CPC分类号： G02B6/0045 ,  B82Y20/00 ,  F21S8/06 ,  F21V3/049 ,  F21V7/0008 ,  F21V2200/20 ,  F21Y2101/00 ,  F21Y2105/00 ,  F21Y2113/13 ,  F21Y2113/20 ,  F21Y2115/10 ,  G02B6/0035 ,  G02B6/0038 ,  G02B6/005 ,  G02B6/006 ,  G02B6/0063 ,  G02B6/0065 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0076 ,  G02B6/0078 ,  G02B6/0095

    摘要： Extended area lighting devices, which are useful e.g. as luminaires, include a light guide and diffractive surface features on a major surface of the light guide. The diffractive surface features are tailored to extract guided-mode light from the light guide. The light guides can be combined with other components and features such as light source(s) to inject guided-mode light into the light guide, light source(s) to project light through the light guide as non-guided-mode light, a framework of interconnected support members (attached to multiple such light guides), and/or a patterned low index subsurface layer that selectively blocks some guided mode light from reaching the diffractive surface features, to provide unique and useful lighting devices. Related optical devices, and optical films having diffractive features that can be used to construct such devices and light guides, are also disclosed.

    摘要翻译： 扩展区域照明装置，例如， 作为灯具，在光导的主表面上包括光导和衍射表面特征。 衍射表面特征被定制以从光导中提取导模。 光导可以与诸如光源的其他部件和特征结合，以将导模模式的光注入到光导中，光源以非导向模式的光将光投射通过光导， 互连支撑构件的框架（附接到多个这样的光导），和/或图案化的低折射率地下层，其选择性地阻挡一些导光模式光到达衍射表面特征，以提供独特且有用的照明装置。 还公开了相关的光学器件和具有可用于构造这种器件和光导的衍射特征的光学膜。

    Colorful diffractive luminaires providing white light illumination
    7.
    发明授权
    Colorful diffractive luminaires providing white light illumination 有权
    提供白光照明的多彩衍射灯具

    公开(公告)号：US08807817B2

    公开(公告)日：2014-08-19

    申请号：US13572823

    申请日：2012-08-13

    申请人： Zhaohui Yang ,  David S. Thompson ,  Vivian W. Jones

    发明人： Zhaohui Yang ,  David S. Thompson ,  Vivian W. Jones

    IPC分类号： F21V13/02

    CPC分类号： F21S8/03 ,  F21S8/04 ,  F21W2121/00 ,  F21Y2103/10 ,  F21Y2103/33 ,  F21Y2113/13 ,  F21Y2115/10 ,  G02B6/0038 ,  G02B6/0058 ,  G02B6/0068 ,  G02B6/0076

    摘要： Extended area lighting devices include a light guide and diffractive surface features on a major surface thereof. The diffractive surface features include diffractive features of different pitches in non-overlapping regions of the major surface tailored to extract guided-mode light of different colors from the light guide in different directions. The diffractive features extract light such that an ordinary user observes substantially different colors in different regions of the light guide, providing a colorful appearance. Notwithstanding this, the diffractive features also extract light such that the lighting device illuminates a reference surface, disposed at an intermediate distance from the light guide, with illumination light that is substantially uniform in color and substantially white. Optical films having diffractive features that can be used to construct such devices and light guides are also disclosed. The concept can also be extended to embodiments in which the uniform color illumination light is not substantially white.

    摘要翻译： 扩展区域照明装置在其主表面上包括光导和衍射表面特征。 衍射表面特征包括在主表面的非重叠区域中的不同间距的衍射特征，其被定制以从不同方向从光导中提取不同颜色的导模模式光。 衍射特征提取光，使得普通用户在光导的不同区域中观察到基本上不同的颜色，从而提供了丰富多彩的外观。 尽管如此，衍射特征还提取光，使得照明装置照亮设置在距离光导的中间距离处的参考表面，其具有基本上均匀的颜色和基本上白色的照明光。 还公开了具有可用于构造这种装置和光导的衍射特征的光学膜。 该概念也可以扩展到其中均匀的彩色照明光基本上不是白色的实施例。

    DIFFRACTIVE LIGHTING DEVICES WITH 3-DIMENSIONAL APPEARANCE
    8.
    发明申请
    DIFFRACTIVE LIGHTING DEVICES WITH 3-DIMENSIONAL APPEARANCE 有权
    具有三维外观的透镜式发光装置

    公开(公告)号：US20140043846A1

    公开(公告)日：2014-02-13

    申请号：US13572805

    申请日：2012-08-13

    申请人： Zhaohui Yang ,  David S. Thompson ,  Vivian W. Jones

    发明人： Zhaohui Yang ,  David S. Thompson ,  Vivian W. Jones

    IPC分类号： F21V13/12 ,  F21V13/02

    CPC分类号： G02B6/0036 ,  F21S8/03 ,  F21S8/04 ,  F21S8/06 ,  F21S8/08 ,  F21S10/005 ,  F21W2121/00 ,  F21Y2101/00 ,  F21Y2103/10 ,  F21Y2103/33 ,  F21Y2105/00 ,  F21Y2113/13 ,  F21Y2115/10 ,  G02B6/0035 ,  G02B6/0046 ,  G02B6/0055 ,  G02B6/006 ,  G02B6/0063 ,  G02B6/0068 ,  G02B6/0076 ,  G02B6/0078

    摘要： Extended area lighting devices include a light guide and diffractive surface features on a major surface of the light guide. The diffractive surface features provide low distortion for viewing objects through the light guide. Light from discrete light source(s) is injected into the light guide, and the diffractive surface features interact with the injected light to couple guided-mode light out of the light guide. The out-coupled light produces one or more bands whose apparent shape changes with viewing position. The bands may be bright bands that correspond to the discrete light sources, or dark bands associated with an optional non-uniform reflective structure extending along a side surface of the light guide. Multiple bands may form a pattern that changes with viewing position, the pattern of bands having a 3-dimensional appearance for at least some viewing positions. The lighting devices can be used as luminaires for general lighting or decorative lighting.

    摘要翻译： 扩展区域照明装置包括在导光体的主表面上的导光体和衍射表面特征。 衍射表面特征提供了通过光导来观察物体的低失真。 来自离散光源的光被注入到光导中，并且衍射表面特征与注入的光相互作用以将导光模式的光耦合到光导中。 外耦合光产生一个或多个带，其表观形状随观看位置而变化。 带可以是对应于离散光源的亮带，或与沿着光导的侧表面延伸的可选的非均匀反射结构相关联的暗带。 多个带可以形成随观看位置而变化的图案，带的图案具有用于至少一些观看位置的3维外观。 照明装置可以用作一般照明或装饰照明的灯具。

    LIGHT SOURCE
    10.
    发明申请
    LIGHT SOURCE 有权
    光源

    公开(公告)号：US20120193607A1

    公开(公告)日：2012-08-02

    申请号：US13499884

    申请日：2010-10-12

    申请人： Nicole J. Wagner ,  Craig R. Schardt ,  Zhaohui Yang

    发明人： Nicole J. Wagner ,  Craig R. Schardt ,  Zhaohui Yang

    IPC分类号： H01L33/06 ,  H01L33/60 ,  H01L33/08

    CPC分类号： G02B3/0037 ,  H01L33/58

    摘要： Wherein the light source comprising: a monolithic emissive semiconductor device; and an array of lenslets, the lenslets being optically and mechanically coupled to the monolithic emissive semiconductor device; wherein the monolithic emissive semiconductor device comprises an array of localized light emission regions, each region corresponding to a given lenslet; wherein the lenslets have an apparent center of curvature (Ca), an apparent focal point (fa), a radius of curvature (R) and a lenslet base diameter (D), the base diameter being the width of the lenslet at the intersection with the monolithic emissive semiconductor device; wherein the distance along the lenslet optic axis between the Ca and the fa are normalized, such that Ca is located at distance 0 and fa is located at point 1; wherein each localized light emission region is located at a point that is greater than 0, and less than Formula (I); and wherein each light emission region has a diameter, the emission region diameter measuring one-third or less of a corresponding lenslet base diameter.

    摘要翻译： 其中所述光源包括：单片发射半导体器件; 和小透镜阵列，所述小透镜光学和机械耦合到所述单片发射半导体器件; 其中所述单片发射半导体器件包括局部发光区域阵列，每个区域对应于给定的小透镜; 其中所述小透镜具有明显的曲率中心（Ca），视在焦点（fa），曲率半径（R）和小透镜基底直径（D），所述基底直径是所述小透镜在与所述透镜的交点处的宽度 单片发射半导体器件; 其中沿着Ca和fa之间的小透镜光轴的距离被归一化，使得Ca位于距离0处，并且fa位于点1处; 其中每个局部发光区域位于大于0且小于公式（I）的点处; 并且其中每个发光区域具有直径，所述发射区域直径测量相应的小透镜底座直径的三分之一或更小。