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1. 发明授权

US5136603A Self-monitoring semiconductor laser device 失效
标题翻译：自我监测半导体激光器件
公开(公告)号：US5136603A
公开(公告)日：1992-08-04
申请号：US692746
申请日：1991-04-29
申请人： Ghulam Hasnain , Kuochou Tai
发明人： Ghulam Hasnain , Kuochou Tai
IPC分类号： H01L27/15 , H01S5/00 , H01S5/026 , H01S5/042 , H01S5/183 , H01S5/187 , H01S5/50
CPC分类号： H01S5/0264 , H01S5/183 , H01S5/0427 , H01S5/18302
摘要： The present invention is a semiconductor laser having an integral photodiode and/or modulator. The integrated structure comprises a quantum well active region sandwiched between a pair of distributed Bragg reflector stacks for emitting laser light transverse to the planes of growth. An intrinsic layer and a doped semiconductor layer are disposed on one of the reflector stacks for forming, in combination with the outer layer of the stack, a photodiode in the path of emitted light. The diode can be used either to monitor the laser power or to modulate the laser output. The device is particularly suited for fabrication and testing in large arrays and, in addition, has the advantages of a circular, low divergence optical output, inherently single mode operation, and a high two-dimensional packing density.
摘要翻译：本发明是具有整体光电二极管和/或调制器的半导体激光器。集成结构包括夹在一对分布布拉格反射器叠层之间的量子阱有源区域，用于发射横切于生长平面的激光。本征层和掺杂半导体层设置在一个反射器叠层上，用于与发射光的路径中的叠层的外层结合形成光电二极管。二极管可用于监视激光功率或调制激光输出。该器件特别适用于大阵列的制造和测试，另外具有圆形，低发散光输出，固有单模操作和高二维封装密度的优点。

2. 发明申请

US20120068604A1 LED-Based Replacement for Fluorescent Light Source 有权
标题翻译：基于LED的荧光光源更换
公开(公告)号：US20120068604A1
公开(公告)日：2012-03-22
申请号：US12888111
申请日：2010-09-22
申请人： Ghulam Hasnain , Calvin B. Ward
发明人： Ghulam Hasnain , Calvin B. Ward
IPC分类号： F21V29/00 , H05B37/02 , F21V21/00
CPC分类号： F21K9/275 , F21K9/27 , F21K9/272 , F21V19/001 , F21V29/004 , F21V29/10 , F21V29/70 , F21V29/89 , F21Y2101/00 , F21Y2103/10 , F21Y2115/10 , H05K1/0209 , H05K2201/10106 , Y02B20/386
摘要： A light source that is adapted to replace existing fluorescent tubes in an existing fluorescent light fixture is disclosed. The light source includes a plurality of LEDs mounted on a heat-dissipating structure, first and second plug adapters that mate with the florescent tube connectors of the fluorescent tube the light source is to replace, and a power adapter that converts power from a fluorescent tube ballast presented on the first and second plug adapters to DC power that powers the LEDs. The light source is powered from the output of the existing fluorescent ballast. The light source can utilize the existing metallic enclosure as a heat-radiating surface and/or direct air heat transfer from the surface of the heat-dissipating structure.
摘要翻译：公开了一种适于替代现有荧光灯中现有荧光管的光源。光源包括安装在散热结构上的多个LED，与光源要替换的荧光管的荧光管连接器相配合的第一和第二插头适配器，以及从荧光管转换功率的电力适配器将第一和第二插头适配器上的镇流器提供给为LED供电的直流电源。光源由现有荧光灯镇流器的输出端供电。光源可以利用现有的金属外壳作为散热表面和/或从散热结构的表面直接进行空气热传递。

3. 发明申请

US20110169407A1 Modular LED Light Bulb 有权
标题翻译：模块化LED灯泡
公开(公告)号：US20110169407A1
公开(公告)日：2011-07-14
申请号：US13073726
申请日：2011-03-28
申请人： Ghulam Hasnain
发明人： Ghulam Hasnain
IPC分类号： H01J7/44 , H01J9/42 , H01J1/62
CPC分类号： H05B33/0815 , F21K9/232 , F21K9/238 , F21K9/64 , F21V3/12 , F21V17/002 , F21V17/164 , F21V23/005 , F21V23/0442 , F21V23/0457 , F21V29/74 , F21V29/85 , F21V29/90 , F21Y2115/10 , H01L2224/48091 , H01L2224/48137 , H01L2224/73265 , H01L2924/181 , H05B33/0803 , H05B33/0869 , H01L2924/00014 , H01L2924/00012
摘要： An LED-based lighting device and method for making the same are disclosed. The lighting device includes an LED light source mounted on a heat sink, a power adaptor, and a controller. The power adaptor is configured to be interchangeable with a conventional incandescent bulb power adapter. The controller provides an average current to the LED light source when power is coupled to the device via the power adaptor. The average current causes the LED light source to generate light of a predetermined standard intensity that is substantially independent of variations in the LED light source from device to device. In one aspect of the invention, the LED light source includes a plurality of LEDs connected in series, the LEDs are bonded to the heat sink and connected to one another in series by wire bonds and to conducting traces on the heat sink.
摘要翻译：公开了一种基于LED的照明装置及其制造方法。照明装置包括安装在散热器上的LED光源，电源适配器和控制器。电源适配器配置为可与传统白炽灯电源适配器互换。当电源通过电源适配器耦合到设备时，控制器提供平均电流到LED光源。平均电流使得LED光源产生基本上与LED光源从器件到器件的变化无关的预定标准强度的光。在本发明的一个方面，LED光源包括串联连接的多个LED，LED被结合到散热器并且通过引线接合而彼此串联连接并且在散热片上导电迹线。

4. 发明申请

US20110068672A1 Distributed LED-Based Light Source 有权
标题翻译：分布式LED基光源
公开(公告)号：US20110068672A1
公开(公告)日：2011-03-24
申请号：US12888055
申请日：2010-09-22
申请人： Ghulam Hasnain
发明人： Ghulam Hasnain
IPC分类号： H01J61/52
CPC分类号： F21V29/70 , F21K9/00 , F21V23/005 , F21V29/507 , H01L2224/48091 , H05K1/0203 , H05K1/0206 , H05K1/05 , H05K2201/10106 , H01L2924/00014
摘要： A light source having a substrate with a plurality of component LED light generators mounted thereon is disclosed. The substrate has a first metallic surface characterized by a normal that points in a normal direction. The first metallic surface is in contact with air over the first metallic surface. The component LED light generators are mounted directly on the first metallic surface. Each component LED light generator includes an LED characterized by an operating temperature and emitting light in the normal direction. Each LED generator generates more than 0.5 watts of heat. The component LED light generators are spaced apart on the first metallic surface such that the operating temperature remains less than 75° C. above the air temperature. In one aspect of the invention, the first metallic surface surrounding each component LED light generator radiates an amount of heat equal to the heat generated by that component LED light generator.
摘要翻译：公开了具有安装在其上的多个部件LED发光体的基板的光源。衬底具有第一金属表面，其特征在于法线方向上指向法线。第一金属表面与第一金属表面上的空气接触。组件LED发光器直接安装在第一金属表面上。每个元件LED发光器包括一个LED，其特征在于工作温度并在正常方向上发光。每个LED发生器产生超过0.5瓦特的热量。组件LED发光器在第一金属表面上间隔开，使得工作温度保持在高于空气温度的75℃以上。在本发明的一个方面，围绕每个部件LED光发生器的第一金属表面辐射相当于由该部件LED光发生器产生的热量的热量。

5. 发明申请

US20110031508A1 Method and Apparatus for Manufacturing LED Devices using Laser Scribing 有权
标题翻译：使用激光划线制造LED器件的方法和装置
公开(公告)号：US20110031508A1
公开(公告)日：2011-02-10
申请号：US12906349
申请日：2010-10-18
申请人： Norihito Hamaguchi , Ghulam Hasnain
发明人： Norihito Hamaguchi , Ghulam Hasnain
IPC分类号： H01L33/00 , B23K26/00
CPC分类号： H01L33/0095 , B23K26/40 , B23K2101/40 , B23K2103/50
摘要： A method of manufacturing a light-emitting device using laser scribing to improve overall light output is disclosed. Upon placing a semiconductor wafer having light emitting diode (“LED”) devices separated by streets on a wafer chuck, the process arranges a first surface of semiconductor wafer containing front sides of the LED devices facing up and a second surface of semiconductor wafer containing back sides of the LED devices facing toward the wafer chuck. After aligning a laser device over the first surface of the semiconductor wafer above a street, the process is configured to focus a high intensity portion of a laser beam generated by the laser device at a location in a substrate closer to the back sides of the LED devices.
摘要翻译：公开了一种使用激光划线制造发光装置以提高整体光输出的方法。在将具有由街道分隔开的发光二极管（“LED”）器件的半导体晶片放置在晶片卡盘上时，该工艺将包含LED器件的前侧的半导体晶片的第一表面朝上并且包含背面的半导体晶片的第二表面 LED器件的侧面朝向晶片卡盘。在将激光装置对准在街道上方的半导体晶片的第一表面上之后，该处理被配置为将由激光装置产生的激光束的高强度部分聚焦在更靠近LED背面的基板中的位置设备。

6. 发明申请

US20100141175A1 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：US20100141175A1
公开(公告)日：2010-06-10
申请号：US12393910
申请日：2009-02-26
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： H05B37/02 , F23Q23/08 , H01L33/00
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。

7. 发明申请

US20100140630A1 Method And Apparatus For Manufacturing LED Devices Using Laser Scribing 有权
标题翻译：使用激光划线制造LED器件的方法和装置
公开(公告)号：US20100140630A1
公开(公告)日：2010-06-10
申请号：US12434208
申请日：2009-05-01
申请人： Norihito Hamaguchi , Ghulam Hasnain
发明人： Norihito Hamaguchi , Ghulam Hasnain
IPC分类号： H01L33/00 , B23K26/36
CPC分类号： H01L33/0095 , B23K26/40 , B23K2101/40 , B23K2103/50
摘要： A method of manufacturing a light-emitting device using laser scribing to improve overall light output is disclosed. Upon placing a semiconductor wafer having light emitting diode (“LED”) devices separated by streets on a wafer chuck, the process arranges a first surface of semiconductor wafer containing front sides of the LED devices facing up and a second surface of semiconductor wafer containing back sides of the LED devices facing toward the wafer chuck. After aligning a laser device over the first surface of the semiconductor wafer above a street, the process is configured to focus a high intensity portion of a laser beam generated by the laser device at a location in a substrate closer to the back sides of the LED devices.
摘要翻译：公开了一种使用激光划线制造发光装置以提高整体光输出的方法。在将具有由街道分隔开的发光二极管（“LED”）器件的半导体晶片放置在晶片卡盘上时，该工艺将包含LED器件的前侧的半导体晶片的第一表面朝上并且包含背面的半导体晶片的第二表面 LED器件的侧面朝向晶片卡盘。在将激光装置对准在街道上方的半导体晶片的第一表面上之后，该处理被配置为将由激光装置产生的激光束的高强度部分聚焦在更靠近LED背面的基板中的位置设备。

8. 发明授权

US06853663B2 Efficiency GaN-based light emitting devices 有权
标题翻译：效率GaN基发光器件
公开(公告)号：US06853663B2
公开(公告)日：2005-02-08
申请号：US10026232
申请日：2001-12-21
申请人： Ghulam Hasnain , Richard P. Schneider , Scott W. Corzine , Mark Hueschen , Tetsuya Takeuchi , Danny E. Mars
发明人： Ghulam Hasnain , Richard P. Schneider , Scott W. Corzine , Mark Hueschen , Tetsuya Takeuchi , Danny E. Mars
IPC分类号： H01S5/10 , H01S5/323 , H01S5/40 , H01S5/00
CPC分类号： H01S5/10 , H01S5/32341 , H01S5/4037 , H01S2301/14
摘要： An optical semiconductor device having an active layer for generating light via the recombination of holes and electrons therein. The active layer is part of a plurality of semiconductor layers including an n-p junction between an n-type layer and a p-type layer. The active layer has a polarization field therein having a field direction that depends on the orientation of the active layer when the active layer is grown. In the present invention, the polarization field in the active layer has an orientation such that the polarization field is directed from the n-layer to the p-layer.
摘要翻译：一种光半导体器件，具有通过其中的空穴和电子的复合产生光的有源层。活性层是包括n型层和p型层之间的n-p结的多个半导体层的一部分。有源层具有其中当活性层生长时具有取决于有源层的取向的场方向的偏振场。在本发明中，有源层中的偏振场具有使得极化场从n层指向p层的取向。

9. 发明授权

US06553053B2 Vertical cavity surface emitting laser having improved light output function 有权
标题翻译：垂直腔表面发射激光器具有改善的光输出功能
公开(公告)号：US06553053B2
公开(公告)日：2003-04-22
申请号：US09912611
申请日：2001-07-25
申请人： Andrew Shuh-Huei Liao , Ghulam Hasnain , Chihping Kuo , Hao-Chung Kuo , Zhiqing Shi , Minh Ngoc Trieu
发明人： Andrew Shuh-Huei Liao , Ghulam Hasnain , Chihping Kuo , Hao-Chung Kuo , Zhiqing Shi , Minh Ngoc Trieu
IPC分类号： H01S308
CPC分类号： H01S5/18333 , H01S5/18308 , H01S5/18358 , H01S5/2063 , H01S2301/166
摘要： A laser diode that includes a light guiding structure that improves the light-output-versus-current curve by altering the multiple spatial modes of the laser diode. A laser diode according to the present invention includes a bottom mirror constructed on an electrically conducting material, an active region constructed from a first conductive spacer situated above the bottom mirror, a light emitting layer, and a second conductive spacer situated above the light emitting layer. The laser diode also includes a top mirror constructed from a plurality of mirror layers of a semiconducting material of a first conductivity type that are located above the second conductive spacer. The adjacent mirror layers have different indexes of refraction. One or more of the top mirror layers is altered to provide an aperture defining layer that includes an aperture region that alters the spatial modes of the device.
摘要翻译：一种激光二极管，其包括通过改变激光二极管的多个空间模式来改善光输出 - 电流曲线的导光结构。根据本发明的激光二极管包括构造在导电材料上的底部反射镜，由位于底部反射镜上方的第一导电间隔件，发光层和位于发光层上方的第二导电间隔件构成的有源区域。激光二极管还包括由位于第二导电间隔物上方的由第一导电类型的半导体材料的多个镜层构成的顶镜。相邻的镜层具有不同的折射率。改变顶镜面层中的一个或多个以提供孔限定层，其包括改变装置的空间模式的孔径区域。

10. 发明授权

US08350485B2 Modular LED light bulb 有权
标题翻译：模块化LED灯泡
公开(公告)号：US08350485B2
公开(公告)日：2013-01-08
申请号：US13073726
申请日：2011-03-28
申请人： Ghulam Hasnain
发明人： Ghulam Hasnain
IPC分类号： H05B39/06 , H05B1/02
CPC分类号： H05B33/0815 , F21K9/232 , F21K9/238 , F21K9/64 , F21V3/12 , F21V17/002 , F21V17/164 , F21V23/005 , F21V23/0442 , F21V23/0457 , F21V29/74 , F21V29/85 , F21V29/90 , F21Y2115/10 , H01L2224/48091 , H01L2224/48137 , H01L2224/73265 , H01L2924/181 , H05B33/0803 , H05B33/0869 , H01L2924/00014 , H01L2924/00012
摘要： An LED-based lighting device and method for making the same are disclosed. The lighting device includes an LED light source mounted on a heat sink, a power adaptor, and a controller. The power adaptor is configured to be interchangeable with a conventional incandescent bulb power adapter. The controller provides an average current to the LED light source when power is coupled to the device via the power adaptor. The average current causes the LED light source to generate light of a predetermined standard intensity that is substantially independent of variations in the LED light source from device to device. In one aspect of the invention, the LED light source includes a plurality of LEDs connected in series, the LEDs are bonded to the heat sink and connected to one another in series by wire bonds and to conducting traces on the heat sink.
摘要翻译：公开了一种基于LED的照明装置及其制造方法。照明装置包括安装在散热器上的LED光源，电源适配器和控制器。电源适配器配置为可与传统白炽灯电源适配器互换。当电源通过电源适配器耦合到设备时，控制器提供平均电流到LED光源。平均电流使得LED光源产生基本上与LED光源从器件到器件的变化无关的预定标准强度的光。在本发明的一个方面，LED光源包括串联连接的多个LED，LED被结合到散热器并且通过引线接合而彼此串联连接并且在散热片上导电迹线。

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