公开(公告)号：US08446109B2

公开(公告)日：2013-05-21

申请号：US13084336

申请日：2011-04-11

Applicant: Long Yang

Inventor： Long Yang

IPC: G05F1/00 ,  H05B39/04

CPC classification number: H05B33/0824

Abstract: A light source and method for operating a light source are disclosed. The present invention includes a light source and method for using the same. The light source includes a power coupler, a reconfigurable two-dimensional LED array and a controller. The power coupler is configured to receive a power potential that varies as a function of time. The LED array has a plurality of configurations of LEDs, each configuration being characterized by a minimum bias potential and a maximum bias potential. The LED array generates light when a potential between first and second power terminals is greater than the minimum bias potential. The controller varies the configuration of the array such that the power potential remains between the minimum and maximum bias potentials as the power potential varies.

Abstract translation: 公开了一种用于操作光源的光源和方法。 本发明包括光源及其使用方法。 光源包括功率耦合器，可重新配置的二维LED阵列和控制器。 功率耦合器配置为接收随时间变化而变化的功率电位。 LED阵列具有多个配置的LED，每个配置的特征在于最小偏置电位和最大偏置电位。 当第一和第二电源端子之间的电位大于最小偏置电位时，LED阵列产生光。 控制器改变阵列的配置，使得当功率电位变化时，功率电位保持在最小和最大偏置电位之间。

公开(公告)号：US20130032845A1

公开(公告)日：2013-02-07

申请号：US13196839

申请日：2011-08-02

Applicant: Chih-Wei Chuang ,  Chao-Kun Lin ,  Long Yang ,  Norihito Hamaguchi

Inventor： Chih-Wei Chuang ,  Chao-Kun Lin ,  Long Yang ,  Norihito Hamaguchi

IPC: H01L33/40 ,  H01L33/48

CPC classification number: H01L33/62 ,  H01L24/05 ,  H01L24/29 ,  H01L24/32 ,  H01L24/48 ,  H01L24/73 ,  H01L24/83 ,  H01L33/0079 ,  H01L33/405 ,  H01L2224/05624 ,  H01L2224/29118 ,  H01L2224/2929 ,  H01L2224/29339 ,  H01L2224/32225 ,  H01L2224/48227 ,  H01L2224/73265 ,  H01L2224/83192 ,  H01L2224/83801 ,  H01L2924/00014 ,  H01L2924/0132 ,  H01L2924/10253 ,  H01L2924/1033 ,  H01L2924/12041 ,  H01L2924/181 ,  H01L2933/0066 ,  H01L2924/0665 ,  H01L2924/01013 ,  H01L2924/0103 ,  H01L2924/00012 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

Abstract: A vertical GaN-based LED is made by growing an epitaxial LED structure on a silicon wafer. A silver layer is added and annealed to withstand >450° C. temperatures. A barrier layer (e.g., Ni/Ti) is provided that is effective for five minutes at >450° C. at preventing bond metal from diffusing into the silver. The resulting device wafer structure is then wafer bonded to a carrier wafer structure using a high temperature bond metal (e.g., AlGe) that melts at >380° C. After wafer bonding, the silicon is removed, gold-free electrodes (e.g., Al) are added, and the structure is singulated. High temperature solder (e.g., ZnAl) that is compatible with the electrode metal is used for die attach. Die attach occurs at >380° C. for ten seconds without melting the bond metal or otherwise damaging the device. The entire LED contains no gold, and consequently is manufacturable in a high-volume gold-free semiconductor fabrication facility.

Abstract translation: 通过在硅晶片上生长外延LED结构来制造垂直GaN基LED。 添加银层并退火以承受> 450℃的温度。 提供了在> 450℃有效5分钟的阻挡层（例如Ni / Ti），以防止粘结金属扩散到银中。 然后，所得到的器件晶片结构使用在> 380℃熔化的高温接合金属（例如，AlGe）将晶片结合到载体晶片结构。在晶片接合之后，去除硅，无金电极（例如，Al ），并且结构被分割。 与电极金属相容的高温焊料（例如ZnAl）用于管芯附着。 芯片附着在> 380°C下发生十秒，而不熔化粘结金属或以其他方式损坏器件。 整个LED不含金，因此可在大容量无金属半导体制造设备中制造。

公开(公告)号：US20130027436A1

公开(公告)日：2013-01-31

申请号：US12216242

申请日：2008-07-01

Applicant: Long Yang

Inventor： Long Yang

IPC: G09G5/10

CPC classification number: G09G3/025 ,  G09G2310/024 ,  G09G2320/0666 ,  G09G2340/0435

Abstract: Methods and systems for improved optical efficiency and brightness of display systems are provided herein. Embodiments use laser light sources in substantially continuous mode, thereby increasing the maximum overall output of an optical system. Embodiments exploit the small étendue of laser sources to lower the loss of throughput of an optical system. Embodiments enable a scrolling color scheme that allows a display system to be illuminated with two or more colors at any given time, thereby increasing the brightness of the display system. Embodiments can be used with liquid crystal displays and/or digital mirror displays. Embodiments can be used in single-panel and/or two-panel display systems.

Abstract translation: 本文提供了用于改善显示系统的光学效率和亮度的方法和系统。 实施例使用基本连续模式的激光光源，从而增加光学系统的最大总输出。 实施例利用了较小的激光源来降低光学系统的吞吐量损失。 实施例能够实现允许在任何给定时间用两种或多种颜色照亮显示系统的滚动颜色方案，从而增加显示系统的亮度。 实施例可以与液晶显示器和/或数字反射镜显示器一起使用。 实施例可以用于单面和/或双面显示系统。

公开(公告)号：US20120091464A1

公开(公告)日：2012-04-19

申请号：US13226404

申请日：2011-09-06

Applicant: Long Yang

Inventor： Long Yang

IPC: H01L33/32 ,  H01L33/60

CPC classification number: H01L33/24 ,  H01L33/0079 ,  H01L33/0095 ,  H01L33/405

Abstract: Enlightening device and method for making the same are disclosed. Individual light emitting devices such as LEDs are separated to form individual dies by process in which a first narrow trench cuts the light emitting portion of the device and a second trench cuts the substrate to which the light emitting portion is attached. The first trench can be less than 10 μm. Hence, a semiconductor area that would normally be devoted to dicing streets on the wafer is substantially reduced thereby increasing the yield of devices. The devices generated by this method can also include base members that are electrically conducting as well as heat conducting in which the base member is directly bonded to the light emitting layers thereby providing improved heat conduction.

Abstract translation: 揭示了启发装置及其制造方法。 单独的发光器件（例如LED）被分离以通过其中第一窄沟槽切割器件的发光部分并且第二沟槽切割发光部分所附着的衬底的工艺来形成单独的裸片。 第一沟槽可以小于10μm。 因此，通常致力于晶片上切割街道的半导体区域大大减少，从而增加了器件的产量。 通过该方法生成的装置还可以包括导电以及导热的基底构件，其中基底构件直接结合到发光层，从而提供改进的热传导。

公开(公告)号：US08047658B2

公开(公告)日：2011-11-01

申请号：US12644600

申请日：2009-12-22

Applicant: Long Yang

Inventor： Long Yang

IPC: G03B21/28 ,  G03B21/14

CPC classification number: H04N9/3117 ,  G03B21/2026 ,  G03B21/208 ,  G03B33/08 ,  H04N9/3114

Abstract: Methods and systems for multiple primary color display are provided. Methods and systems of the present invention improve the spectrum efficiency of a color display system, and provide enhanced brightness and color gamut. In an embodiment, methods and systems of the present invention improve the brightness of a color display system employing a high pressure lamp by efficiently incorporating lights components of the lamp output that are outside the red, green, and blue spectrum in creating the color image.

Abstract translation: 提供了多原色显示的方法和系统。 本发明的方法和系统提高了彩色显示系统的频谱效率，并提供了增强的亮度和色域。 在一个实施例中，本发明的方法和系统通过在产生彩色图像中有效地并入在红色，绿色和蓝色光谱外部的灯输出的光分量来提高采用高压灯的彩色显示系统的亮度。

公开(公告)号：US07912331B1

公开(公告)日：2011-03-22

申请号：US12173199

申请日：2008-07-15

Applicant: Long Yang

Inventor： Long Yang

IPC: G02B6/26

CPC classification number: G02B6/125 ,  G02B6/2852 ,  G02B6/29358 ,  G02B6/29385 ,  G02B6/30 ,  G02B6/32 ,  G02B6/356 ,  G02B6/3588

Abstract: Passive optical components may be used to tap the optical power, e.g., from fibers of a wavelength switch system. The passive optical components are realized by a standard photonics light-wave circuit (PLC) integrated to the fiber collimator array of the wavelength switch system. The PLC includes multiple waveguide paths that optically couple optical signals from one or more fiber ports to one or more corresponding free space optical component ports. Optical signals traveling through these waveguide paths are tapped by one or more optical taps and coupled to one or more corresponding tap ports. Each optical tap is located such that an optical signal is tapped after it is coupled into one of the waveguide paths.

Abstract translation: 无源光学部件可以用于例如从波长开关系统的光纤中分离光功率。 无源光学元件由集成到波长开关系统的光纤准直器阵列的标准光子光波电路（PLC）实现。 PLC包括将光信号从一个或多个光纤端口光学耦合到一个或多个相应的自由空间光学部件端口的多个波导路径。 通过这些波导路径行进的光信号被一个或多个光学抽头抽头并耦合到一个或多个相应的抽头端口。 每个光学抽头被定位成使得光信号在被耦合到一个波导路径中之后被点击。

公开(公告)号：US06823093B2

公开(公告)日：2004-11-23

申请号：US10166823

申请日：2002-06-11

Applicant: Kok-Wai Chang ,  Qingdong Guo ,  Long Yang ,  Gonzalo Wills

Inventor： Kok-Wai Chang ,  Qingdong Guo ,  Long Yang ,  Gonzalo Wills

IPC: G02B600

CPC classification number: G02B6/2713 ,  G02B6/274 ,  G02B6/2766

Abstract: A tunable PM fiber combiner is configured to be accurately alignable with and operative to combine into a single composite beam a pair of non-collimated, orthogonally polarized light beams transported over polarization maintaining (PM) optical fibers, whose mutual spatial separation may vary. The combiner includes birefringent elements, that are linearly or rotationally displaced to realize the composite beam. The resulting composite light beam may then be readily coupled (e.g. via a single mode fiber) to a downstream beam processing device, such as a Raman amplifier.

Abstract translation: 可调谐PM光纤组合器被配置成精确地对准并且可操作地组合成单个复合波束，一对非准直的正交偏振光束在相互空间间隔可能变化的偏振维持（PM）光纤之间传输。 组合器包括双折射元件，其被线性地或旋转地移位以实现复合梁。 所得到的复合光束然后可以容易地（例如经由单模光纤）耦合到诸如拉曼放大器的下游光束处理装置。

公开(公告)号：US06208798B1

公开(公告)日：2001-03-27

申请号：US09518322

申请日：2000-03-03

Applicant: Val N. Morozov ,  Haining Fan ,  Long Yang

Inventor： Val N. Morozov ,  Haining Fan ,  Long Yang

IPC: G02B600

CPC classification number: G02B6/2552 ,  G02B6/266 ,  G02B6/2835 ,  G02F1/0118 ,  G02F2203/48

Abstract: An apparatus that features an optical fiber with a core surrounded by a cladding, wherein at least one of the core and the cladding has a reduced thickness along an interval of the fiber to enlarge a modal field diameter of the guided mode in the fiber. A control layer is disposed on an external surface of the cladding along the interval. The control layer exhibits a strong change in its index of refraction as a function of temperature. The apparatus further includes a heating/cooling element and a controller to change the temperature of the control layer to more than two different levels, responsive to more than two different, corresponding attenuation settings for an optical signal to be guided by the fiber. In another embodiment of the invention, a coreless optical fiber is fused to the cladding of the optical fiber at the interval to achieve a flat wavelength response behavior. The control layer is formed at least on the external surface of the optical fiber, and may further be formed on an external surface of the coreless optical fiber.

Abstract translation: 一种装置，其特征在于具有由包层围绕的芯的光纤，其中所述芯和所述包层中的至少一个沿着所述光纤的间隔具有减小的厚度，以增大所述光纤中所述导模的模态场直径。 控制层沿间隔设置在包层的外表面上。 控制层表现出与温度有关的折射率的强烈变化。 该装置还包括加热/冷却元件和控制器，用于响应于由光纤引导的光学信号的两个以上不同的相应的衰减设置，将控制层的温度改变到两个以上的不同水平。 在本发明的另一个实施例中，无芯光纤以间隔与光纤的包层熔合以实现平坦的波长响应行为。 控制层至少形成在光纤的外表面上，并且还可以形成在无芯光纤的外表面上。

公开(公告)号：US5848211A

公开(公告)日：1998-12-08

申请号：US705874

申请日：1996-08-28

Applicant: Long Yang ,  Gary Trott

Inventor： Long Yang ,  Gary Trott

IPC: G02B6/36 ,  G02B6/42 ,  G02B7/02 ,  G02B6/43

CPC classification number: G02B6/423 ,  G02B6/4246 ,  G02B6/4214

Abstract: A photonics apparatus is described. The photonics apparatus includes a plurality of components and a mounting member for mounting the components. The mounting member and the components are structured such that all of the components of the photonics module are precisely mounted and aligned on the mounting member without requiring active alignment and additional mounting member. The components mounted on the mounting member include at least a laser, a photo detector, and two spherical lenses. The components may also include an optical filter and a mirror. The mounting member is made of silicon such that a photo-lithographic masking and etching process can be used to precisely process the mounting member to mount these components. The photo detector includes an integrated mirror. The optical filter and the mirror may be integrated together to form an integrated device that is attached to the mounting member. A method of making the photonics apparatus is also described.

Abstract translation: 描述了一种光子学装置。 光子学装置包括多个部件和用于安装部件的安装部件。 安装构件和组件被构造成使得光子模块的所有部件精确地安装和对准在安装构件上，而不需要主动对准和附加的安装构件。 安装在安装构件上的部件至少包括激光器，光电检测器和两个球面透镜。 组件还可以包括滤光器和反射镜。 安装构件由硅制成，使得可以使用光刻掩模和蚀刻工艺来精确地处理安装构件以安装这些部件。 光检测器包括一体化镜。 光学滤光器和反射镜可以集成在一起以形成附接到安装构件的集成装置。 还描述了制造光子学装置的方法。

公开(公告)号：US5838708A

公开(公告)日：1998-11-17

申请号：US509886

申请日：1995-08-01

Applicant: Hong Lin ,  Long Yang ,  Michael R. T. Tan ,  Shih-Yuan Wang

Inventor： Hong Lin ,  Long Yang ,  Michael R. T. Tan ,  Shih-Yuan Wang

IPC: H01S5/026 ,  H01S5/183 ,  H01S5/20 ,  H01S3/18

CPC classification number: H01S5/0264 ,  H01S5/0207 ,  H01S5/18305 ,  H01S5/18308 ,  H01S5/2027 ,  H01S5/2063

Abstract: The present invention provides a structure and method for integrating a photodiode and surface emitting laser on a substrate which minimizes both process complexity and exposure of epitaxial layers. In a first embodiment, a photodiode structure is integrated with the surface emitting laser simply by adding a separate Schottky contact to the surface of the SEL. In a second embodiment, a photodiode structure is integrated with the surface emitting laser by positioning a current isolation region between the photodiode and the SEL. The current isolation region should extend into a first mirror region but not into the light generation region of the active region so that the light generation region of the SEL is optically coupled to the light absorption region of the photodiode.