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21.发明授权公开(公告)号：US07280068B2
公开(公告)日：2007-10-09
申请号：US11181111
申请日：2005-07-14
IPC分类号： G01S13/89
CPC分类号： G01S13/89 , G01S7/2813
摘要： A microwave imaging system suppresses sidelobes in a microwave image captured using a sparse antenna array using an illumination system that operates in two different illumination modes. The antenna array including subarrays of antenna elements arranged in a sparse geometry to form complementary subarray patterns. The illumination system operates in a first mode to transmit microwave illumination to both of the complementary subarray patterns of the antenna array and receive reflected microwave illumination from both of the complementary subarray patterns of the antenna array to produce a first receive signal. The illumination system further operates in a second mode to transmit microwave illumination to a first one of the complementary subarray patterns of the antenna array and receive reflected microwave illumination from a second one of the complementary subarray patterns of the antenna array to produce a second receive signal. Sidelobes are suppressed using a linear combination of the first and second receive signals.
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公开(公告)号：US07053419B1
公开(公告)日：2006-05-30
申请号：US09660317
申请日：2000-09-12
申请人： Michael D. Camras , Michael R. Krames , Wayne L. Snyder , Frank M. Steranka , Robert C. Taber , John J. Uebbing , Douglas W. Pocius , Troy A. Trottier , Christopher H. Lowery , Gerd O. Mueller , Regina B. Mueller-Mach
发明人： Michael D. Camras , Michael R. Krames , Wayne L. Snyder , Frank M. Steranka , Robert C. Taber , John J. Uebbing , Douglas W. Pocius , Troy A. Trottier , Christopher H. Lowery , Gerd O. Mueller , Regina B. Mueller-Mach
IPC分类号： H01L33/00
CPC分类号： H01L33/58 , H01L33/20 , H01L33/505 , H01L2933/0058
摘要： Light emitting devices with improved light extraction efficiency are provided. The light emitting devices have a stack of layers including semiconductor layers comprising an active region. The stack is bonded to a transparent lens having a refractive index for light emitted by the active region preferably greater than about 1.5, more preferably greater than about 1.8. A method of bonding a transparent lens to a light emitting device having a stack of layers including semiconductor layers comprising an active region includes elevating a temperature of the lens and the stack and applying a pressure to press the lens and the stack together. Bonding a high refractive index lens to a light emitting device improves the light extraction efficiency of the light emitting device by reducing loss due to total internal reflection. Advantageously, this improvement can be achieved without the use of an encapsulant.
摘要翻译： 提供了具有提高光提取效率的发光器件。 发光器件具有包括有源区的半导体层的一叠层。 叠层结合到具有由有源区发射的光的折射率的透明透镜，优选大于约1.5，更优选大于约1.8。 将透明透镜粘合到具有包括有源区的半导体层的层叠的发光器件的方法包括提高透镜和叠层的温度并施加压力以将透镜和叠层压在一起。 将高折射率透镜粘合到发光器件通过减少由于全内反射引起的损耗来提高发光器件的光提取效率。 有利地，可以在不使用密封剂的情况下实现这种改进。
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公开(公告)号：US08681035B2
公开(公告)日：2014-03-25
申请号：US11148079
申请日：2005-06-08
CPC分类号： H01Q1/2216 , G01S13/887 , G01S13/89 , G01V8/005 , H01Q1/22 , H01Q21/065
摘要： A microwave imaging system uses microwave radiation provided by a microwave source to image targets. The system includes an array of antenna elements that are capable of being programmed with a respective direction coefficient to direct the microwave illumination from the microwave source toward a position on the target. The antenna elements are further capable of being programmed to receive reflected microwave illumination reflected from the position on the target. A processor is operable to measure an intensity of the reflected microwave illumination to determine a value of a pixel within an image of the target. Multiple beams can be directed towards the target to obtain corresponding pixel values for use by the processor in constructing the image.
摘要翻译： 微波成像系统使用由微波源提供的微波辐射来对目标进行成像。 该系统包括天线元件阵列，其能够用相应的方向系数进行编程，以将来自微波源的微波照明引导到目标上的位置。 天线元件还能够被编程以接收从目标上的位置反射的反射的微波照明。 处理器可操作以测量反射的微波照明的强度以确定目标图像内的像素的值。 多个光束可以被引向目标以获得对应的像素值，供处理器在构建图像时使用。
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24.发明授权System and method for minimizing background noise in a microwave image using a programmable reflector array 有权使用可编程反射器阵列来最小化微波图像中的背景噪声的系统和方法公开(公告)号：US07327304B2
公开(公告)日：2008-02-05
申请号：US11088830
申请日：2005-03-24
申请人： Izhak Baharav , Robert C. Taber , Gregory S. Lee
发明人： Izhak Baharav , Robert C. Taber , Gregory S. Lee
CPC分类号： G01N22/00
摘要： A microwave imaging system captures a microwave image of a target and minimizes noise in the microwave image using phase differentiation. A reflector antenna array is provided including a plurality of antenna elements for reflecting microwave radiation towards the target and for reflecting microwave radiation reflected from the target towards a microwave receiver. A processor programs the antenna elements with respective first phase shifts to capture a first microwave image of the target, and programs the antenna elements with respective second phase shifts to capture a second microwave image of the target. The first phase shift of each antenna element is 180 degrees different than the second phase shift for that antenna element. The processor minimizes noise from a combination of the first microwave image and the second microwave image.
摘要翻译： 微波成像系统捕获目标的微波图像，并使用相位微分使微波图像中的噪声最小化。 提供了一种反射器天线阵列，其包括多个天线元件，用于将微波辐射反射到目标物并用于将从目标物反射的微波辐射反射向微波接收器。 A处理器以相应的第一相移对天线元件进行编程以捕获目标的第一微波图像，并且用相应的第二相移对天线元件进行编程以捕获目标的第二微波图像。 每个天线元件的第一相移与该天线元件的第二相移成180度。 该处理器使来自第一微波图像和第二微波图像的组合的噪声最小化。
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公开(公告)号：US07112775B2
公开(公告)日：2006-09-26
申请号：US10966313
申请日：2004-10-14
IPC分类号： H01L27/00
CPC分类号： G01S13/89
摘要： A technique for imaging an object with a coherent beam of electromagnetic radiation involves sequencing at least a portion of the coherent beam through a set of orthogonal transverse spatial modes and summing the output signals that result from set of orthogonal transverse spatial modes. To create an image of an object, the coherent beam is applied to multiple spots on the object and sequenced through the same set of orthogonal transverse spatial modes at each spot. The output signals generated from the sequencing are summed on a per-spot basis.
摘要翻译： 用相干的电磁辐射波束成像物体的技术涉及通过一组正交横向空间模式对相干光束的至少一部分进行排序，并对由正交横向空间模式集合产生的输出信号求和。 为了创建对象的图像，将相干光束施加到对象上的多个点，并通过在每个点处的相同的一组正交横向空间模式进行排序。 从排序产生的输出信号基于每个点相加。
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公开(公告)号：US07064355B2
公开(公告)日：2006-06-20
申请号：US09880204
申请日：2001-06-12
申请人： Michael D. Camras , Michael R. Krames , Wayne L. Snyder , Frank M. Steranka , Robert C. Taber , John J. Uebbing , Douglas W. Pocius , Troy A. Trottier , Christopher H. Lowery , Gerd O. Mueller , Regina B. Mueller-Mach , Gloria E. Hofler
发明人： Michael D. Camras , Michael R. Krames , Wayne L. Snyder , Frank M. Steranka , Robert C. Taber , John J. Uebbing , Douglas W. Pocius , Troy A. Trottier , Christopher H. Lowery , Gerd O. Mueller , Regina B. Mueller-Mach , Gloria E. Hofler
IPC分类号： H01L33/00
CPC分类号： H01L33/58 , H01L33/20 , H01L33/405 , H01L33/505 , H01L33/60
摘要： Light emitting devices with improved light extraction efficiency are provided. The light emitting devices have a stack of layers including semiconductor layers comprising an active region. The stack is bonded to a transparent optical element having a refractive index for light emitted by the active region preferably greater than about 1.5, more preferably greater than about 1.8. A method of bonding a transparent optical element (e.g., a lens or an optical concentrator) to a light emitting device comprising an active region includes elevating a temperature of the optical element and the stack and applying a pressure to press the optical element and the light emitting device together. A block of optical element material may be bonded to the light emitting device and then shaped into an optical element. Bonding a high refractive index optical element to a light emitting device improves the light extraction efficiency of the light emitting device by reducing loss due to total internal reflection. Advantageously, this improvement can be achieved without the use of an encapsulant.
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公开(公告)号：US06972714B1
公开(公告)日：2005-12-06
申请号：US10863733
申请日：2004-06-08
CPC分类号： G01S13/89 , G01N22/00 , G01S13/867
摘要： An imaging system includes an optical (visible-light or near IR) imaging system and a microwave imaging system. The optical imaging system captures an optical image of the object, produces optical image data representing the optical image and extracts optical image information from the optical image data. The microwave imaging system produces microwave image data representing a microwave image of the object in response to the optical image information.
摘要翻译： 成像系统包括光学（可见光或近红外）成像系统和微波成像系统。 光学成像系统捕获物体的光学图像，产生表示光学图像的光学图像数据，并从光学图像数据提取光学图像信息。 微波成像系统响应于光学图像信息产生表示对象的微波图像的微波图像数据。
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公开(公告)号：US06504171B1
公开(公告)日：2003-01-07
申请号：US09490777
申请日：2000-01-24
申请人： Patrick N. Grillot , Christopher P. Kocot , Michael R. Krames , Eugene I. Chen , Stephen A. Stockman , Ying-Lan Chang , Robert C. Taber
发明人： Patrick N. Grillot , Christopher P. Kocot , Michael R. Krames , Eugene I. Chen , Stephen A. Stockman , Ying-Lan Chang , Robert C. Taber
IPC分类号： H01L2906
摘要： A light emitting device and a method of increasing the light output of the device utilize a chirped multi-well active region to increase the probability of radiative recombination of electrons and holes within the light emitting active layers of the active region by altering the electron and hole distribution profiles within the light emitting active layers of the active region (i.e., across the active region). The chirped multi-well active region produces a higher and more uniform distribution of electrons and holes throughout the active region of the device by substantially offsetting carrier diffusion effects caused by differences in electron and hole mobility by using complementary differences in layer thickness and/or layer composition within the active region. Thus, the chirped design of the multi-well active region increases the probability of radiative recombination of electrons and holes within the light emitting active layers of the active region, which results in an increased light output of the device. The multi-well active region of the device may be chirped with respect to light emitting active layers and/or barrier layers of the active region. The light emitting device may be a III-V material LED, a II-VI material LED, a polymer or organic LED, a laser diode or an optical amplifier.
摘要翻译： 发光器件和增加器件的光输出的方法利用啁啾多阱有源区，通过改变电子和空穴来增加有源区的发光有源层内的电子和空穴的辐射复合的概率 在有源区域的发光有源层（即，跨过有源区域）的分布曲线。 啁啾多孔有源区通过使用层厚度和/或层中的互补差异基本抵消由电子和空穴迁移率的差异引起的载流子扩散效应，从而在器件的整个有源区域中产生更高且更均匀的电子和空穴分布 活性区内的组成。 因此，多孔有源区的啁啾设计增加了有源区的发光有源层内的电子和空穴的辐射复合的概率，这导致器件的光输出增加。 器件的多阱有源区可以相对于有源区的发光有源层和/或势垒层被啁啾。 发光器件可以是III-V材料LED，II-VI材料LED，聚合物或有机LED，激光二极管或光放大器。
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公开(公告)号：US6005691A
公开(公告)日：1999-12-21
申请号：US763500
申请日：1996-12-11
申请人： Annette C. Grot , John S. Hoch , Robert C. Taber
发明人： Annette C. Grot , John S. Hoch , Robert C. Taber
IPC分类号： B42D15/10 , G02B5/18 , G03H1/02 , G03H1/18 , G06K7/12 , G06K19/06 , G06K19/10 , G06K19/16 , G09F1/02 , G09F19/12 , G03H1/00
CPC分类号： G03H1/0252 , B42D25/328 , G02B5/1842 , G06K19/16 , G03H1/0011 , G03H1/0244 , G03H2240/54 , G03H2250/36 , Y10S283/901 , Y10S283/904
摘要： The hologram card generates a hologram image in response to an illumination light beam. The hologram card comprises a substrate of a first plastic material having a first refractive index. The substrate has a contoured surface. The contoured surface is formed to include localized topological features constituting a diffractive optical element. The diffractive optical element is structured to generate a hologram image when illuminated by the illumination light beam. The hologram card also comprises a protective layer of a second plastic material having a second refractive index that differs from the first refractive index by less than 0.2. The protective layer covers the contoured surface of the substrate. The protective layer is chemically bonded to, and directly contacts, at least the topological features constituting the diffractive optical element.
摘要翻译： 全息卡响应照明光束产生全息图像。 全息卡包括具有第一折射率的第一塑料材料的基底。 衬底具有轮廓表面。 轮廓表面被形成为包括构成衍射光学元件的局部拓扑特征。 衍射光学元件被构造成当被照明光束照射时产生全息图像。 全息卡还包括具有不同于第一折射率的第二折射率小于0.2的第二塑料材料的保护层。 保护层覆盖基板的轮廓表面。 保护层化学键合到至少构成衍射光学元件的拓扑特征并直接接触。
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