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31. 发明授权

US08084775B2 Light sources with serially connected LED segments including current blocking diodes 有权
标题翻译：具有串联连接的LED段的光源，包括电流阻塞二极管
公开(公告)号：US08084775B2
公开(公告)日：2011-12-27
申请号：US12725424
申请日：2010-03-16
申请人： Ghulam Hasnain , Steven D. Lester , Syn-Yem Hu , Jeff Ramer
发明人： Ghulam Hasnain , Steven D. Lester , Syn-Yem Hu , Jeff Ramer
IPC分类号： H01L33/00
CPC分类号： H01L27/153 , H01L33/145 , H01L33/44 , H01L33/62 , H01L2924/0002 , H01L2924/00
摘要： A light source and method for making the same are disclosed. The light source includes a substrate and a light emitting structure that is deposited on the substrate. A barrier divides the light emitting structure into first and second segments that are electrically isolated from one another. A serial connection electrode connects the first segment in series with the second segment. A first blocking diode between the light emitting structure and the substrate prevents current from flowing between the light emitting structure and the substrate when the light emitting structure is emitting light. The barrier extends through the light emitting structure into the first blocking diode.
摘要翻译：公开了一种光源及其制造方法。光源包括基板和沉积在基板上的发光结构。障碍物将发光结构分成彼此电隔离的第一和第二段。串联连接电极将第一段与第二段串联连接。当发光结构发光时，发光结构和衬底之间的第一阻挡二极管防止电流在发光结构和衬底之间流动。屏障通过发光结构延伸到第一阻塞二极管中。

32. 发明申请

US20110182064A1 Light Sources Utilizing Segmented LEDs to Compensate for Manufacturing Variations in the Light Output of Individual Segmented LEDs 有权
标题翻译：光源利用分段LED来补偿单个分段LED的光输出中的制造变化
公开(公告)号：US20110182064A1
公开(公告)日：2011-07-28
申请号：US13080439
申请日：2011-04-05
申请人： Ghulam Hasnain , Syn-Yem Hu , Steven D. Lester
发明人： Ghulam Hasnain , Syn-Yem Hu , Steven D. Lester
IPC分类号： F21S4/00 , H01J9/42
CPC分类号： H05B33/0827 , H01L27/153 , H01L33/62 , H01L2924/0002 , H01L2933/0066 , H05B33/083 , H05B33/0845 , H05B33/089 , H05B33/10 , H05B37/0263 , H01L2924/00
摘要： A light source and method for making the same are disclosed. The light source includes a plurality of Segmented LEDs connected in parallel to a power bus and a controller. The power bus accepts a variable number of Segmented LEDs. The controller receives AC power and provides a power signal on the power bus. Each Segmented LED is characterized by a driving voltage that is greater than 3 times the driving voltage of a conventional LED fabricated in the same material system as the Segmented LED. The number of Segmented LEDs in the light source is chosen to compensate for variations in the light output of individual Segmented LEDs introduced by the manufacturing process. In another aspect of the invention, the number of Segmented LEDs connected to the power bus can be altered after the light source is assembled.
摘要翻译：公开了一种光源及其制造方法。光源包括并联连接到电源总线和控制器的多个分段LED。电源总线接受可变数量的分段LED。控制器接收交流电源，并在电源总线上提供电源信号。每个分段LED的特征在于驱动电压大于在与分段LED相同的材料系统中制造的常规LED的驱动电压的3倍。选择光源中的分段LED的数量来补偿由制造过程引入的各个分段LED的光输出的变化。在本发明的另一方面，在组装光源之后，可以改变连接到电力总线的分段LED的数量。

33. 发明申请

US20110163347A1 Series Connected Segmented LED 有权
标题翻译：串联连接分段LED
公开(公告)号：US20110163347A1
公开(公告)日：2011-07-07
申请号：US13049492
申请日：2011-03-16
申请人： Ghulam Hasnain
发明人： Ghulam Hasnain
IPC分类号： H01L33/42 , H01L33/20
CPC分类号： H01L27/153 , H01L33/385 , H01L33/44 , H01L33/62 , H01L2924/0002 , H01L2924/00
摘要： A light source and method for making the same are disclosed. The light source includes a substrate, and a light emitting structure that is divided into segments. The light emitting structure includes a first layer of semiconductor material of a first conductivity type deposited on the substrate, an active layer overlying the first layer, and a second layer of semiconductor material of an opposite conductivity type from the first conductivity type overlying the active layer. A barrier divides the light emitting structure into first and second segments that are electrically isolated from one another. A serial connection electrode connects the first layer in the first segment to the second layer in the second segment. A power contact is electrically connected to the second layer in the first segment, and a second power contact electrically connected to the first layer in the second segment.
摘要翻译：公开了一种光源及其制造方法。光源包括基板和被分割成段的发光结构。发光结构包括沉积在衬底上的第一导电类型的第一层半导体材料，覆盖第一层的有源层和覆盖有源层的第一导电类型的相反导电类型的第二半导体材料层。障碍物将发光结构分成彼此电隔离的第一和第二段。串联连接电极将第一段中的第一层连接到第二段中的第二层。电源触头电连接到第一段中的第二层，以及电连接到第二段中的第一层的第二电源触头。

34. 发明申请

US20100219440A1 Inverted LED Structure with Improved Light Extraction 有权
公开(公告)号：US20100219440A1
公开(公告)日：2010-09-02
申请号：US12779813
申请日：2010-05-13
申请人： Ghulam Hasnain
发明人： Ghulam Hasnain
IPC分类号： H01L33/10
CPC分类号： H01L33/20
摘要： A light source and method for fabricating the same are disclosed. The light source includes a substrate and a light emitting structure. The substrate has a first surface and a second surface, the second surface including a curved, convex surface with respect to the first surface of the substrate. The light emitting structure includes a first layer of a material of a first conductivity type overlying the first surface, an active layer overlying the first layer, the active layer generating light when holes and electrons recombine therein, and a second layer includes a material of a second conductivity type overlying the active layer and a second surface opposite to the first surface. A mirror layer overlies the light emitting structure.

35. 发明申请

US20100065866A1 Inverted LED Structure with Improved Light Extraction 失效
标题翻译：具有改进的光提取的倒置LED结构
公开(公告)号：US20100065866A1
公开(公告)日：2010-03-18
申请号：US12210845
申请日：2008-09-15
申请人： Ghulam Hasnain
发明人： Ghulam Hasnain
IPC分类号： H01L33/00
CPC分类号： H01L33/20
摘要： A light source and method for fabricating the same are disclosed. The light source includes a substrate and a light emitting structure. The substrate has a first surface and a second surface, the second surface including a curved, convex surface with respect to the first surface of the substrate. The light emitting structure includes a first layer of a material of a first conductivity type overlying the first surface, an active layer overlying the first layer, the active layer generating light when holes and electrons recombine therein, and a second layer includes a material of a second conductivity type overlying the active layer and a second surface opposite to the first surface. A mirror layer overlies the light emitting structure.
摘要翻译：公开了一种光源及其制造方法。光源包括基板和发光结构。衬底具有第一表面和第二表面，第二表面包括相对于衬底的第一表面的弯曲的凸形表面。发光结构包括覆盖第一表面的第一导电类型的材料的第一层，覆盖第一层的有源层，当空穴和电子在其中复合时产生光的有源层，以及第二层包括覆盖有源层的第二导电类型和与第一表面相对的第二表面。镜面层覆盖发光结构。

36. 发明申请

US20100059768A1 Series Connected Segmented LED 有权
标题翻译：串联连接分段LED
公开(公告)号：US20100059768A1
公开(公告)日：2010-03-11
申请号：US12208502
申请日：2008-09-11
申请人： Ghulam Hasnain
发明人： Ghulam Hasnain
IPC分类号： H01L33/00
CPC分类号： H01L27/153 , H01L33/385 , H01L33/44 , H01L33/62 , H01L2924/0002 , H01L2924/00
摘要： A light source and method for making the same are disclosed. The light source includes a substrate, and a light emitting structure that is divided into segments. The light emitting structure includes a first layer of semiconductor material of a first conductivity type deposited on the substrate, an active layer overlying the first layer, and a second layer of semiconductor material of an opposite conductivity type from the first conductivity type overlying the active layer. A barrier divides the light emitting structure into first and second segments that are electrically isolated from one another. A serial connection electrode connects the first layer in the first segment to the second layer in the second segment. A power contact is electrically connected to the second layer in the first segment, and a second power contact electrically connected to the first layer in the second segment.
摘要翻译：公开了一种光源及其制造方法。光源包括基板和被分割成段的发光结构。发光结构包括沉积在衬底上的第一导电类型的第一层半导体材料，覆盖第一层的有源层和覆盖有源层的第一导电类型的相反导电类型的第二半导体材料层。障碍物将发光结构分成彼此电隔离的第一和第二段。串联连接电极将第一段中的第一层连接到第二段中的第二层。电源触头电连接到第一段中的第二层，以及电连接到第二段中的第一层的第二电源触头。

37. 发明授权

US5023685A Quantum-well radiation-interactive device, and methods of radiation detection and modulation 失效
标题翻译：量子阱辐射交互装置，以及辐射检测和调制方法
公开(公告)号：US5023685A
公开(公告)日：1991-06-11
申请号：US361879
申请日：1989-06-06
申请人： Clyde G. Bethea , Ghulam Hasnain , Barry F. Levine , Roger J. Malik
发明人： Clyde G. Bethea , Ghulam Hasnain , Barry F. Levine , Roger J. Malik
IPC分类号： H01L25/04 , H01L27/148
CPC分类号： B82Y20/00 , H01L25/043 , H01L27/14812 , H01L27/14868 , H01L27/14875 , H01L2924/0002
摘要： Electromagnetic radiation such as, in particular, infrared radiation is detected opto-electronically by means of a superlattice structure forming quantum wells having a single bound state; in the interest of minimizing dark-current, relatively wide barriers are used between quantum wells. Resulting highly sensitive, high-speed detectors can be used in optical communications, for terrain mapping, and for infrared viewing. Furthermore, upon application of a variable electrical potential across the superlattice structure, radiation traversing such structure can be modulated.
摘要翻译：通过形成具有单一结合状态的量子阱的超晶格结构以光电子方式检测电磁辐射，特别是红外辐射; 为了最小化暗电流，在量子阱之间使用相对较宽的屏障。因此，高灵敏度的高速探测器可用于光通信，地形测绘和红外观测。此外，当在超晶格结构上施加可变电位时，可以调制穿过这种结构的辐射。

38. 发明授权

US08350251B1 Nanowire sized opto-electronic structure and method for manufacturing the same 失效
公开(公告)号：US08350251B1
公开(公告)日：2013-01-08
申请号：US13251555
申请日：2011-10-03
申请人： Truls Lowgren , Ghulam Hasnain
发明人： Truls Lowgren , Ghulam Hasnain
IPC分类号： H01L33/00
CPC分类号： H01L33/405 , H01L33/06 , H01L33/08 , H01L33/18 , H01L33/20 , H01L33/46 , H01L33/60 , H01L2224/48091 , H01L2224/48464 , H01L2224/73265 , H01L2224/8592 , H01L2924/00014
摘要： An opto-electric structure includes a plurality of nano elements arranged side by side on a support layer, where each nano element includes at least a first conductivity type semiconductor nano sized core, and where the core and a second conductivity type semiconductor form a pn or pin junction. A first electrode layer that extends over the plurality of nano elements and is in electrical contact with at least a portion of the second conductivity type semiconductor, and a mirror provided on a second conductivity type semiconductor side of the structure.

39. 发明授权

US08338848B2 LED structure 有权
标题翻译： LED结构
公开(公告)号：US08338848B2
公开(公告)日：2012-12-25
申请号：US13214725
申请日：2011-08-22
申请人： Ghulam Hasnain , Steven D. Lester
发明人： Ghulam Hasnain , Steven D. Lester
IPC分类号： H01L33/46 , H01L33/52 , H01L33/60
CPC分类号： H01L33/46 , H01L33/22 , H01L33/382 , H01L33/405 , H01L33/44
摘要： A light emitting device, a wafer for making the same, and method for fabricating the same are disclosed. The device and wafer include a first layer of a first conductivity type, an active layer, and a layer of a second conductivity type. The active layer overlies the first layer, the active layer generating light. The second layer overlies the active layer, the second layer having a first surface in contact adjacent to the active layer and a second surface having a surface that includes features that scatter light striking the second surface. A layer of transparent electrically conducting material is adjacent to the second surface and covered by a first layer of a dielectric material that is transparent to the light generated by the active layer. A mirror layer that has a reflectivity greater than 90 percent is deposited on the first layer of dielectric material.
摘要翻译：公开了一种发光器件，用于制造它的晶片及其制造方法。器件和晶片包括第一导电类型的第一层，有源层和第二导电类型的层。有源层覆盖第一层，有源层产生光。第二层覆盖有源层，第二层具有邻近有源层的接触的第一表面和具有散射射入第二表面的光的表面的第二表面。一层透明的导电材料与第二表面相邻并被由对活性层产生的光透明的电介质材料的第一层覆盖。反射率大于90％的镜面层沉积在第一层电介质材料上。

40. 发明授权

US08207543B2 Series connected segmented LED 有权
标题翻译：串联连接分段LED
公开(公告)号：US08207543B2
公开(公告)日：2012-06-26
申请号：US13049492
申请日：2011-03-16
申请人： Ghulam Hasnain
发明人： Ghulam Hasnain
IPC分类号： H01L33/00
CPC分类号： H01L27/153 , H01L33/385 , H01L33/44 , H01L33/62 , H01L2924/0002 , H01L2924/00
摘要： A light source and method for making the same are disclosed. The light source includes a substrate, and a light emitting structure that is divided into segments. The light emitting structure includes a first layer of semiconductor material of a first conductivity type deposited on the substrate, an active layer overlying the first layer, and a second layer of semiconductor material of an opposite conductivity type from the first conductivity type overlying the active layer. A barrier divides the light emitting structure into first and second segments that are electrically isolated from one another. A serial connection electrode connects the first layer in the first segment to the second layer in the second segment. A power contact is electrically connected to the second layer in the first segment, and a second power contact is electrically connected to the first layer in the second segment.
摘要翻译：公开了一种光源及其制造方法。光源包括基板和被分割成段的发光结构。发光结构包括沉积在衬底上的第一导电类型的第一层半导体材料，覆盖第一层的有源层和覆盖有源层的第一导电类型的相反导电类型的第二半导体材料层。障碍物将发光结构分成彼此电隔离的第一和第二段。串联连接电极将第一段中的第一层连接到第二段中的第二层。电源触头与第一段中的第二层电连接，第二电源触点电连接到第二段中的第一层。

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