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1. 发明申请

US20100315567A1 LIQUID CRYSTAL BASED BROADBAND FILTER FOR FAST POLARIZATION IMAGING 审中-公开
标题翻译：基于液晶的宽带滤波器，用于快速极化成像
公开(公告)号：US20100315567A1
公开(公告)日：2010-12-16
申请号：US12484849
申请日：2009-06-15
申请人： Bing Wen , Donald Taber , Dong-Feng Gu
发明人： Bing Wen , Donald Taber , Dong-Feng Gu
IPC分类号： G02F1/1335 , G01J4/00
CPC分类号： G01J4/04 , G02B5/3016 , G02F1/13363 , G02F2001/133638 , G02F2203/07 , G02F2203/62 , G02F2413/04 , G02F2413/08
摘要： A liquid crystal based broadband filter and imaging system for analyzing the polarization state of radiation. The filter includes four elements: a quarter wave plate; a 45° polarization rotator; a 90° polarization rotator; and a fixed polarizer. The first three of these elements are electronically switchable, allowing the user to select from any of the six possible polarization states. The switchable elements use multiple liquid crystal cells made from dual-frequency materials. A dual-frequency signal is used to activate and deactivate the various elements to achieve the desired state configuration. The dual-frequency signal drives the liquid crystal cells in and out of states, improving the overall switching time of the filter. The configuration of the liquid crystal cells within each of the filter allows broadband operation over most of the visible, infrared and ultraviolet spectra. The filter cycles through six configurations corresponding to the six polarization states of the incident radiation. Thus, the polarization state of the radiation can be completely characterized using the four Stokes parameters. Information related to the intensity and polarization of the radiation can be stored, displayed and analyzed.
摘要翻译：一种用于分析辐射极化状态的基于液晶的宽带滤波器和成像系统。滤波器包括四个元件：四分之一波片; 45°偏振旋转器; 90°偏振旋转器; 和固定偏振器。这些元件的前三个是电子可切换的，允许用户从六个可能的偏振状态中的任一个中进行选择。可切换元件使用由双频材料制成的多个液晶单元。使用双频信号来激活和去激活各种元件以实现期望的状态配置。双频信号驱动液晶单元进入和退出状态，从而提高滤波器的整体切换时间。每个滤波器内的液晶单元的配置允许宽带操作大多数可见光，红外和紫外光谱。滤波器循环通过对应于入射辐射的六个偏振状态的六个配置。因此，可以使用四个斯托克斯参数来完全表征辐射的偏振状态。可以存储，显示和分析与辐射的强度和极化有关的信息。

2. 发明申请

US20050041920A1 Apparatus for optically coupling a light source with an optical waveguide 有权
标题翻译：用于将光源与光波导光学耦合的装置
公开(公告)号：US20050041920A1
公开(公告)日：2005-02-24
申请号：US10948856
申请日：2004-09-23
申请人： Dong-Feng Gu , Donald Taber , Bruce Winker
发明人： Dong-Feng Gu , Donald Taber , Bruce Winker
IPC分类号： G02B6/32 , G02B6/35 , G02F1/139 , G02F1/29 , G02B6/26
CPC分类号： G02F1/292 , G02B6/32 , G02B6/351 , G02B6/3556 , G02F1/1392
摘要： An apparatus for optically coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face of the optical waveguide. An adaptive coupler, positioned in the optical path, is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide. In one form, the adaptive coupler comprises a pair of transparent substrates having confronting, parallel inner faces, the inner face of one of the pair of substrates carrying a beam intercepting, optically transparent, constant potential electrode and the inner face of the other of the pair of substrates carrying an electrically resistive, beam intercepting, optically transparent film. A pair of spaced apart electrodes in electrical contact with the film apply a linear voltage gradient along the film. An electro-optical phase shifting medium is disposed between the confronting inner faces of the substrates. The application of selected voltages to the electrodes creates a linear voltage gradient along the aforementioned film on the inner face of the one substrate resulting in a linearly varying electric field between that film and the constant potential electrode creating a corresponding linear variation in the refractive index of the liquid crystal medium and a linear wavefront tilt in the intercepting optical beam.
摘要翻译：用于将光源与光波导的光接收端面光学耦合的装置包括用于将从光源发射的光束聚焦在光波导的光接收端面上的焦点处的透镜。定位在光路中的自适应耦合器响应于光束转向控制信号，用于相对于光波导的光接收端面转向和对准焦点。在一种形式中，自适应耦合器包括一对具有相对的平行内表面的透明基板，一对基板中的一个基板的内表面承载光束拦截，光学透明的恒定电位电极，另一个的内表面一对基板承载电阻，光束截取的光学透明膜。与膜电接触的一对间隔开的电极沿膜施加线性电压梯度。电光移相介质设置在基板的相对的内表面之间。将选择的电压施加到电极在一个衬底的内表面上沿着上述膜产生线性电压梯度，导致该膜和恒电位电极之间线性变化的电场产生相应的线性变化液晶介质和截取光束中的线性波前倾斜。

3. 发明申请

US20050041919A1 Optical fiber coupling having liquid crystal adaptive coupler 有权
标题翻译：具有液晶自适应耦合器的光纤耦合器
公开(公告)号：US20050041919A1
公开(公告)日：2005-02-24
申请号：US10948855
申请日：2004-09-23
申请人： Dong-Feng Gu , Donald Taber , Bruce Winker
发明人： Dong-Feng Gu , Donald Taber , Bruce Winker
IPC分类号： G02B6/32 , G02B6/35 , G02F1/139 , G02F1/29 , G02B6/26
CPC分类号： G02F1/292 , G02B6/32 , G02B6/351 , G02B6/3556 , G02F1/1392
摘要： An apparatus for optically coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face of the optical waveguide. An adaptive coupler, positioned in the optical path, is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide. In one form, the adaptive coupler comprises a pair of transparent substrates having confronting, parallel inner faces, the inner face of one of the pair of substrates carrying a beam intercepting, optically transparent, constant potential electrode and the inner face of the other of the pair of substrates carrying an electrically resistive, beam intercepting, optically transparent film. A pair of spaced apart electrodes in electrical contact with the film apply a linear voltage gradient along the film. An electro-optical phase shifting medium is disposed between the confronting inner faces of the substrates. The application of selected voltages to the electrodes creates a linear voltage gradient along the aforementioned film on the inner face of the one substrate resulting in a linearly varying electric field between that film and the constant potential electrode creating a corresponding linear variation in the refractive index of the liquid crystal medium and a linear wavefront tilt in the intercepting optical beam.
摘要翻译：用于将光源与光波导的光接收端面光学耦合的装置包括用于将从光源发射的光束聚焦在光波导的光接收端面上的焦点处的透镜。定位在光路中的自适应耦合器响应于光束转向控制信号，用于相对于光波导的光接收端面转向和对准焦点。在一种形式中，自适应耦合器包括一对具有相对的平行内表面的透明基板，一对基板中的一个基板的内表面承载光束拦截，光学透明的恒定电位电极，另一个的内表面一对基板承载电阻，光束截取的光学透明膜。与膜电接触的一对间隔开的电极沿膜施加线性电压梯度。电光移相介质设置在基板的相对的内表面之间。将选择的电压施加到电极在一个衬底的内表面上沿着上述膜产生线性电压梯度，导致该膜和恒电位电极之间线性变化的电场产生相应的线性变化液晶介质和截取光束中的线性波前倾斜。

4. 发明申请

US20070159701A1 Electro-optic zoom lens system 有权
标题翻译：电光变焦镜头系统
公开(公告)号：US20070159701A1
公开(公告)日：2007-07-12
申请号：US11653000
申请日：2007-01-12
申请人： Scott Campbell , Bing Wen , Milind Mahajan , Bruce Winker , Donald Taber
发明人： Scott Campbell , Bing Wen , Milind Mahajan , Bruce Winker , Donald Taber
IPC分类号： G02B15/14
CPC分类号： G02B27/288 , G02B5/3083 , G02B15/14
摘要： A fast, electro-optically switched zoom lens system operates across a broad spectral and thermal range while correcting for birefringent aberrations by means of a polarizing system that preferably includes polarizing reticles.
摘要翻译：快速的电光转换变焦透镜系统在宽的光谱和热范围内工作，同时通过优选包括偏振光栅的偏振系统来校正双折射像差。

5. 发明申请

US20110079703A1 OBJECT TRACKING SYSTEM 有权
标题翻译：对象跟踪系统
公开(公告)号：US20110079703A1
公开(公告)日：2011-04-07
申请号：US12648709
申请日：2009-12-29
申请人： William J. Gunning, III , Dale Hollis , Alexander A. Bogdanov , Steven Chen , Bing Wen , Jian Ma , Donald Taber
发明人： William J. Gunning, III , Dale Hollis , Alexander A. Bogdanov , Steven Chen , Bing Wen , Jian Ma , Donald Taber
IPC分类号： G01B11/14 , G01P15/02
CPC分类号： G01S5/163 , F41G3/225 , G02B27/017 , G02B2027/014 , G02B2027/0187 , G06F3/012 , G06T7/74 , G06T2207/10016 , G06T2207/30204
摘要： An optical tracking system comprises an array of point source emitters that output respective optical emissions, and a plurality of angle of arrival sensors. Each sensor comprises one or more optical elements and a focal plane array (FPA), with the optical elements arranged to resolve the optical emissions into one or more linear patterns on the FPA. A processing system in communication with the sensors establishes the orientation and position of each of the optical emitters using the linear patterns. A headgear tracking system employs point source emitters on a piece of headgear, with front and rear arrays of angle of arrival sensors located in an aircraft cockpit; a processing system in communication with the sensor arrays establishes an orientation and position for each of the optical emitters on the headgear.
摘要翻译：光学跟踪系统包括输出相应的光发射的点源发射器阵列和多个到达角传感器。每个传感器包括一个或多个光学元件和焦平面阵列（FPA），其中光学元件被布置成将光发射分解成FPA上的一个或多个线性图案。与传感器通信的处理系统使用线性图案确定每个光发射器的取向和位置。头戴式跟踪系统在一件头饰上采用点源发射器，前后阵列的到达传感器位于飞机驾驶舱内; 与传感器阵列通信的处理系统为头架上的每个光发射器建立取向和位置。

6. 发明授权

US08237101B2 Object tracking system having at least one angle-of-arrival sensor which detects at least one linear pattern on a focal plane array 有权
标题翻译：对象跟踪系统具有至少一个到达角度传感器，其检测焦平面阵列上的至少一个线性图案
公开(公告)号：US08237101B2
公开(公告)日：2012-08-07
申请号：US12648709
申请日：2009-12-29
申请人： William J. Gunning, III , Dale Hollis , Alexander A. Bogdanov , Steven Chen , Bing Wen , Jian Ma , Donald Taber
发明人： William J. Gunning, III , Dale Hollis , Alexander A. Bogdanov , Steven Chen , Bing Wen , Jian Ma , Donald Taber
IPC分类号： H01J40/14
CPC分类号： G01S5/163 , F41G3/225 , G02B27/017 , G02B2027/014 , G02B2027/0187 , G06F3/012 , G06T7/74 , G06T2207/10016 , G06T2207/30204
摘要： An optical tracking system comprises an array of point source emitters that output respective optical emissions, and a plurality of angle of arrival sensors. Each sensor comprises one or more optical elements and a focal plane array (FPA), with the optical elements arranged to resolve the optical emissions into one or more linear patterns on the FPA. A processing system in communication with the sensors establishes the orientation and position of each of the optical emitters using the linear patterns. A headgear tracking system employs point source emitters on a piece of headgear, with front and rear arrays of angle of arrival sensors located in an aircraft cockpit; a processing system in communication with the sensor arrays establishes an orientation and position for each of the optical emitters on the headgear.
摘要翻译：光学跟踪系统包括输出相应的光发射的点源发射器阵列和多个到达角传感器。每个传感器包括一个或多个光学元件和焦平面阵列（FPA），其中光学元件被布置成将光发射分解成FPA上的一个或多个线性图案。与传感器通信的处理系统使用线性图案确定每个光发射器的取向和位置。头戴式跟踪系统在一件头饰上采用点源发射器，前后阵列的到达传感器位于飞机驾驶舱内; 与传感器阵列通信的处理系统为头架上的每个光发射器建立取向和位置。

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