公开(公告)号：US07974510B2

公开(公告)日：2011-07-05

申请号：US10447831

申请日：2003-05-29

申请人： Charles D. Hoke

发明人： Charles D. Hoke

IPC分类号： G02B6/16

CPC分类号： G02F1/0115 ,  G02B6/02338 ,  G02B6/02385 ,  G02B6/0239 ,  G02F1/1334 ,  G02F2201/307 ,  G02F2202/32 ,  G02F2203/06

摘要： A waveguide having a spatially-variable refractive index is disclosed. The waveguide having a spatially-variable refractive index comprises a light-propagating medium and a non-uniform distribution of liquid crystal material in a matrix of dielectric material located in a portion of the light-propagating medium.

摘要翻译： 公开了具有空间可变折射率的波导。 具有空间可变折射率的波导包括光传播介质和液晶材料在位于光传播介质的一部分中的介电材料的矩阵中的不均匀分布。

公开(公告)号：US20100066680A1

公开(公告)日：2010-03-18

申请号：US12624091

申请日：2009-11-23

申请人： Susan Hunter ,  Charles D. Hoke ,  Ramakrishna Kakarala ,  John S. Wenstrand

发明人： Susan Hunter ,  Charles D. Hoke ,  Ramakrishna Kakarala ,  John S. Wenstrand

IPC分类号： G08B21/00 ,  G06F3/033

CPC分类号： G01P3/68 ,  G01P3/806 ,  G06F3/0317 ,  G06F3/03543 ,  G06F3/03549

摘要： Two or more spatial filters are used in determining velocity based on speckle translation. A light source may be turned on, turned off, or both for a variable amount of time during operation. The velocity may then be determined with trend identification, correlation, recursive frequency estimation, or measurement bandwidth variation. A confidence level may also be calculated for the measured velocity, and the measured velocity reported or used only when the calculated confidence level meets or exceeds a given value.

摘要翻译： 使用两个或更多个空间滤波器来确定基于斑点平移的速度。 在操作期间，光源可以被打开，关闭或两者都变化了一段时间。 然后可以用趋势识别，相关性，递归频率估计或测量带宽变化来确定速度。 也可以计算测量速度的置信水平，仅在计算的置信度达到或超过给定值时报告或使用的测量速度。

公开(公告)号：US06785439B2

公开(公告)日：2004-08-31

申请号：US10060512

申请日：2002-01-29

申请人： Charles D. Hoke ,  Brian E. Lemoff

发明人： Charles D. Hoke ,  Brian E. Lemoff

IPC分类号： G02B6026

CPC分类号： G02B6/3596 ,  G02B6/3556 ,  G02F1/293

摘要： A three-dimensional optical switch using three-dimensional rewritable waveguides in a photosensitive substrate. At least two light beams are used to illuminate the substrate in the region where the waveguide is to be written. The refractive index of the substrate changes at the points where the beams intersect. Therefore, the light beams can be directed to create a three-dimensional waveguide in the photosensitive substrate. A plurality of inlet ports in one surface of the substrate are thereby connected to a plurality of outlet ports on another surface of the substrate. Alternatively, the inlet ports and the outlet ports may be on the same surface of the substrate. The invention also provides methods of creating waveguides in photosensitive media using the device described herein.

摘要翻译： 在感光基片中使用三维可重写波导的三维光学开关。 使用至少两束光束来照射波导要被写入的区域中的衬底。 基板的折射率在光束相交的点处变化。 因此，可以引导光束以在感光基板中产生三维波导。 因此，衬底的一个表面中的多个入口端口连接到衬底的另一表面上的多个出口。 或者，入口端口和出口可以在基板的相同表面上。 本发明还提供了使用本文所述的装置在光敏介质中产生波导的方法。

公开(公告)号：US06714305B2

公开(公告)日：2004-03-30

申请号：US09916920

申请日：2001-07-26

申请人： Charles D. Hoke

发明人： Charles D. Hoke

IPC分类号： G01J345

CPC分类号： B82Y20/00 ,  G02F1/1334 ,  G02F1/216 ,  G02F2202/36 ,  G02F2203/06

摘要： A tunable Fabry-Perot filter, which includes a pair of opposed partially reflective surfaces, a cavity between the partially reflective surfaces, a nano-dispersion of liquid crystals disposed in the cavity, and a control unit for applying an electric field to the liquid crystals.

摘要翻译： 可调式法布里 - 珀罗滤光器，其包括一对相对的部分反射表面，部分反射表面之间的空腔，设置在空腔中的液晶的纳米分散体，以及用于向液晶施加电场的控制单元 。

公开(公告)号：US06658212B1

公开(公告)日：2003-12-02

申请号：US09703400

申请日：2000-10-31

申请人： William R. Trutna, Jr. ,  Charles D. Hoke

发明人： William R. Trutna, Jr. ,  Charles D. Hoke

IPC分类号： H04J1402

CPC分类号： G02B6/272 ,  G02B6/2766 ,  G02B6/2931 ,  G02B6/29383 ,  H04J14/0201 ,  H04J14/06 ,  H04Q11/0005 ,  H04Q2011/0026 ,  H04Q2011/0032 ,  H04Q2011/0035

摘要： The frequency-selective optical multiplexer comprises, an LC polarization controller, a spectral demux/mux and input/output optics including two ports, a first optical path spatially separated from a second optical path and polarization-dispersive optics. The polarization dispersive optics are disposed between the ports and the optical paths; generate from an optical signal a pair of polarization components, composed of a first polarization component and a second polarization component having orthogonal polarizations; and output the first and second polarization components via the first and second optical paths, respectively. The first and second polarization components have first and second polarizations when the optical signal is received at one port, and have the second and the first polarizations, respectively, when the optical signal is received at the other port. The spectral demux/mux generates first pairs of spatially-separated spectral components from a first pair of orthogonal polarization components received from the input/output optics, outputs the spectral components to the polarization controller, receives respective second pairs of spectral components from the polarization controller, and spatially overlaps the second pairs of spectral components to generate a second pair of polarization components. Either the first pair or the second pair of polarization components passes between the spectral demux/mux and the input/output optics via the optical paths. The polarization controller receives the first pairs of spectral components at a zero angle of incidence, and rotates the polarizations of each of them individually and selectively through 0° or 90° to generate one of the second pairs of spectral components.

摘要翻译： 频率选择性光复用器包括LC偏振控制器，包括两个端口的光谱解复用器/多路复用器和输入/输出光学器件，与第二光路和偏振分散光学器件空间上分离的第一光路。 偏振分散光学器件设置在端口和光路之间; 从光信号产生由具有正交偏振的第一偏振分量和第二偏振分量组成的一对偏振分量; 并且经由第一和第二光路分别输出第一和第二偏振分量。 当在一个端口处接收光信号时，第一和第二偏振分量具有第一和第二偏振，并且当在另一个端口处接收到光信号时，分别具有第二偏振和第二偏振。 光谱解复用器/多路复用器从从输入/输出光学器件接收的第一对正交偏振分量中产生第一对空间分离的光谱分量，将光谱分量输出到偏振控制器，从偏振控制器接收相应的第二对光谱分量 并且在空间上与第二对光谱分量重叠以产生第二对偏振分量。 第一对或第二对偏振分量通过光路在光谱解复用器/多路复用器和输入/输出光学器件之间通过。 偏振控制器以零入射角接收第一对光谱分量，并且使它们中的每一个的极化逐渐地旋转0°或90°，以产生第二对光谱分量之一。

公开(公告)号：US06583838B1

公开(公告)日：2003-06-24

申请号：US09507954

申请日：2000-02-22

申请人： Charles D. Hoke ,  Philip J. Bos ,  Jianlin Li

发明人： Charles D. Hoke ,  Philip J. Bos ,  Jianlin Li

IPC分类号： G02F11333

CPC分类号： G02F1/1391 ,  G02F1/1397 ,  G02F2001/13775

摘要： A liquid crystal display device including a polyimide alignment layer, having a bistable liquid crystal material and a polymer stabilizer in an amount effective to stabilize the liquid crystal the liquid crystal preferably having a low or medium pretilt angle to eliminate undesired states and stripe tendency and to increase hysteresis. The device has a low driving voltage, low power consumption and fast switching.

摘要翻译： 一种液晶显示装置，包括具有双稳态液晶材料和聚合物稳定剂的聚酰亚胺取向层，该液晶材料和聚合物稳定剂的量有效地使液晶稳定，液晶优选具有低或中等预倾角，以消除不期望的状态和条纹倾向，并且 增加滞后。 该器件具有低驱动电压，低功耗和快速切换。

公开(公告)号：US07071717B2

公开(公告)日：2006-07-04

申请号：US10975140

申请日：2004-10-28

申请人： Charles D. Hoke ,  Ken A. Nishimura

发明人： Charles D. Hoke ,  Ken A. Nishimura

IPC分类号： G01R31/02

CPC分类号： G01R1/07385 ,  G01R1/07328 ,  G01R1/07335

摘要： A universal fixture for testing a device, such as a bare printed circuit board, includes a plurality of addressable contact points. Each of the contact points includes a switch connected to a conductor capable of creating an electrical connection to the device. To obtain a measurement of a target on the device, two of the contact points on the universal fixture are selected based on the position of the target on the device relative to the contact points.

摘要翻译： 用于测试诸如裸印刷电路板的设备的通用夹具包括多个可寻址的接触点。 每个接触点包括连接到能够产生与设备的电连接的导体的开关。 为了获得设备上的目标的测量，通用夹具上的两个接触点是根据目标在设备上相对于接触点的位置来选择的。

公开(公告)号：US06961486B2

公开(公告)日：2005-11-01

申请号：US09873127

申请日：2001-06-01

申请人： Brian E. Lemoff ,  Charles D. Hoke ,  Dale W. Schroeder

发明人： Brian E. Lemoff ,  Charles D. Hoke ,  Dale W. Schroeder

IPC分类号： G02B26/08 ,  G02B6/35 ,  G02B6/38 ,  G02B6/36

CPC分类号： G02B6/3508 ,  G02B6/3542 ,  G02B6/3556 ,  G02B6/3572 ,  G02B6/3578 ,  G02B6/3873 ,  G02B6/3874

摘要： A first plurality of stages each support a ferrule surrounding an end portion of a corresponding one of N optical input fibers. A second plurality of stages each support a ferrule surrounding an end portion of a corresponding one of M optical output fibers. Mechanical mechanisms translate the stages along a plurality of orthogonal X and Y axes to align a facet of a selected one of the N input optical fibers with a facet of a selected one of the M output optical fibers. The stages of the input optical fibers, the output optical fibers, or both, have mechanical mechanisms for moving the ferrules along Z axes perpendicular to the X and Y axes into and out of alignment holes of a central panel to physically mate the facets of the coupled fibers.

摘要翻译： 第一多个阶段各自支撑环绕N个光学输入光纤中的相应一个的端部的套圈。 第二多个阶段各自支撑环绕M个光输出光纤中的相应一个的端部的套圈。 机械机构沿着多个正交X轴和Y轴平移台阶，以将N个输入光纤中所选择的一个的一个面与M个输出光纤中所选择的一个的小平面对准。 输入光纤，输出光纤或两者的阶段具有机械机构，用于沿着垂直于X轴和Y轴的Z轴移动套圈进入和离开中心板的对准孔，以物理地匹配 耦合纤维。

公开(公告)号：US20080215294A1

公开(公告)日：2008-09-04

申请号：US11555135

申请日：2006-10-31

申请人： S. Jeffrey Rosner ,  Charles D. Hoke ,  Ken A. Nishimura

发明人： S. Jeffrey Rosner ,  Charles D. Hoke ,  Ken A. Nishimura

IPC分类号： G06F15/00

CPC分类号： G01R31/42

摘要： In accordance with the invention, a system for assured reliability in DC to AC power converters with application to distributed power generation systems is presented. Reliability limiting components of the DC to AC power converters are monitored and the monitored data is used to drive servicing decisions

摘要翻译： 根据本发明，提出了一种应用于分布式发电系统的DC至AC电力转换器中的可靠可靠性系统。 监控直流到交流电源转换器的可靠性限制组件，监控数据用于驱动服务决策

公开(公告)号：US07133116B2

公开(公告)日：2006-11-07

申请号：US10736724

申请日：2003-12-15

申请人： Ken A. Nishimura ,  Dale W. Schroeder ,  Charles D. Hoke

发明人： Ken A. Nishimura ,  Dale W. Schroeder ,  Charles D. Hoke

IPC分类号： G03B27/54 ,  G03B27/42

CPC分类号： G03F7/70466 ,  G03F7/70291

摘要： A spatial light modulator for use in a photolithography system includes light modulation elements configured to photolithographically transfer an image onto a substrate using an optical oversampling technique to reduce defects in the transferred image. A first set of the light modulation elements is operable to photolithographically transfer a portion of the image onto an area of a substrate, and a second set of the light modulation elements is operable to photolithographically transfer the portion of the image onto the area of the substrate. The spatial light modulator further includes memory elements in communication with respective light modulation elements for storing data representing the portion of the image.

摘要翻译： 用于光刻系统的空间光调制器包括配置为使用光学过采样技术将图像光刻地转印到衬底上的光调制元件，以减少转印图像中的缺陷。 第一组光调制元件可操作以将图像的一部分光刻地传送到衬底的区域上，并且第二组光调制元件可操作以光刻地将图像的一部分转印到衬底的区域上 。 空间光调制器还包括与相应的光调制元件通信的存储元件，用于存储表示图像的该部分的数据。