Thermal displacement-based radiation detector of high sensitivity
    31.
    发明授权
    Thermal displacement-based radiation detector of high sensitivity 失效
    基于热位移的辐射探测器具有高灵敏度

    公开(公告)号:US07705307B1

    公开(公告)日:2010-04-27

    申请号:US11711275

    申请日:2007-02-27

    Inventor: Jing Zhao Lei Zhang

    CPC classification number: G01J5/40 G01J5/08 G01J5/0831 G01J5/0896

    Abstract: A radiation detector comprises an infrared radiation sensing micro mirror array, where each micro mirror is supported with a deformable cantilever beam having an organic layer for increased dynamic range. The radiation detector includes two or more sources of optical radiation for irradiating the micro mirror array, an image sensor array for receiving optical reflection from the micro mirror array, and an aperture plate for (i) spatially restricting optical radiation reaching the micro mirror array and (ii) spatially restricting reflected optical reflection reaching the image sensor array.

    Abstract translation: 辐射检测器包括红外辐射感测微反射镜阵列,其中每个微反射镜由具有用于增加动态范围的有机层的可变形悬臂梁支撑。 辐射检测器包括用于照射微反射镜阵列的两个或更多个光辐射源,用于接收来自微镜阵列的光学反射的图像传感器阵列和用于(i)空间限制到达微反射镜阵列的光辐射的孔板,以及 (ii)空间限制到达图像传感器阵列的反射光学反射。

    Solid-State optical wavelength switches
    32.
    发明授权
    Solid-State optical wavelength switches 失效
    固态光波长开关

    公开(公告)号:US06718082B2

    公开(公告)日:2004-04-06

    申请号:US10017236

    申请日:2001-12-18

    Abstract: The present invention provides an improved optical wavelength switch in which no mechanical movement is required to direct optical pathways between several fiber ports. The inventive three-fiber port device divides incoming optical signals into two subsets of spectra and selectively directs them into two output ports in response to an electrical control signal. In the inventive switch, an optical signal is spatially split into two polarized beams, by a birefringent element, which thereafter pass through a series polarization rotation elements and recombine into output fibers, achieving polarization independent operation. Advantageously, the inventive switch incorporates two-stage polarization rotations to improve isolation depth, as well as temperature and wavelength independence. The invention also incorporates light bending devices to allow two fibers to be coupled to the light beams via a single lens, thereby achieving small beam separation for compactness. Switches rely on electromagnetically or electro-optically switching the beam polarizations from one state to another to rapidly direct the light path.

    Abstract translation: 本发明提供了一种改进的光波长开关,其中不需要机械运动来引导几个光纤端口之间的光路。 本发明的三光纤端口设备将输入的光信号划分为两个光谱子集,并且响应于电控制信号选择性地将它们引导到两个输出端口中。 在本发明的开关中,通过双折射元件将光信号在空间上分为两个偏振光束,然后双折射元件通过串联偏振旋转元件并复合到输出光纤中,实现偏振无关操作。 有利地,本发明的开关包含两级偏振旋转以改善隔离深度,以及温度和波长独立性。 本发明还包括光弯曲装置,以允许两个光纤通过单个透镜耦合到光束,从而实现小的光束分离以实现紧凑。 开关依靠电磁或电光切换从一个状态到另一个状态的光束极化,以快速引导光路。

    High-speed low-loss fiber-optic switches
    33.
    发明授权
    High-speed low-loss fiber-optic switches 失效
    高速低损耗光纤交换机

    公开(公告)号:US06229934B1

    公开(公告)日:2001-05-08

    申请号:US09158000

    申请日:1998-09-22

    CPC classification number: G02B6/2848 G02F1/31

    Abstract: The invention provides a fiber-optic 2×2 switch using a dual-fiber 50:50 input coupler and a dual-fiber 50:50 output coupler. One fiber from each coupler makes contact to an inner transparent electrode on a planar layer of electro-optic material and the other fibers make contact to an outer transparent electrode on the layer. The electro-optic layer has its other side coated with a transparent electrode which is placed in optical contact with one end of a GRIN lens. The fibers are arranged so that the inner fibers are at conjugate points and the outer fibers also at conjugate points of the lens. The other end of the lens is coated with a mirror. Applying a voltage between either the inner or outer electrode changes the optical path length for the light from and to the fibers traveling through the material under the selected electrode causing the light from the two input fibers to be switched between the two output fibers. 2×N switches can be constructed by concatenating 2×2 switches. The switch can also be used as a modulator. A convenient fiber alignment method is described.

    Abstract translation: 本发明提供一种使用双光纤50:50输入耦合器和双光纤50:50输出耦合器的光纤2x2开关。 来自每个耦合器的一根光纤与电光材料的平面层上的内部透明电极接触,并且其它光纤与层上的外部透明电极接触。 电光层的另一侧涂有透明电极,该透明电极与GRIN透镜的一端放置成光学接触。 纤维布置成使得内纤维在共轭点处,外纤维也在透镜的共轭点处。 透镜的另一端涂有镜子。 在内部电极或外部电极之间施加电压改变来自穿过选定电极之下的材料的光的光路长度,从而使来自两个输入光纤的光在两个输出光纤之间切换。 2xN开关可以通过连接2x2开关构成。 开关也可以用作调制器。 描述了方便的光纤对准方法。

    MICROELECTROMECHANICAL DISPLACEMENT STRUCTURE AND METHOD FOR CONTROLLING DISPLACEMENT
    37.
    发明申请
    MICROELECTROMECHANICAL DISPLACEMENT STRUCTURE AND METHOD FOR CONTROLLING DISPLACEMENT 审中-公开
    微电子变位结构及其控制方法

    公开(公告)号:US20150277103A1

    公开(公告)日:2015-10-01

    申请号:US14242328

    申请日:2014-04-01

    Abstract: The present disclosure provides a displacement amplification structure and a method for controlling displacement. In one aspect, the displacement amplification structure of the present disclosure includes a first beam and a second beam substantially parallel to the first beam, an end of the first beam coupled to a fixture site, and an end of the second beam coupled to a motion actuator; and a motion shutter coupled to an opposing end of the first and second beams. In response to a displacement of the motion actuator along an axis direction of the second beam, the motion shutter displaces a distance along a transversal direction substantially perpendicular to the axis direction.

    Abstract translation: 本公开提供了一种位移放大结构和一种用于控制位移的方法。 在一个方面,本公开的位移放大结构包括第一光束和基本上平行于第一光束的第二光束,第一光束的端部耦合到固定位置,第二光束的端部耦合到运动 执行机构 以及耦合到第一和第二光束的相对端的运动快门。 响应于运动致动器沿着第二光束的轴线方向的位移,运动快门沿着基本上垂直于轴线方向的横向方向移位一段距离。

    OBTAINING ALTERNATIVE KEYWORDS
    38.
    发明申请
    OBTAINING ALTERNATIVE KEYWORDS 审中-公开
    获得替代关键词

    公开(公告)号:US20150186937A1

    公开(公告)日:2015-07-02

    申请号:US13996069

    申请日:2012-06-12

    CPC classification number: G06Q30/0256 G06F16/24578 G06F16/285 G06F16/313

    Abstract: A system includes receiving information regarding a first keyword associated with a user, where the first keyword is usable by a content distribution system to select content for distribution based on keywords associated with the user. The system also includes obtaining an attribute associated with the user; identifying at least one keyword category corresponding to the attribute; and selecting at least one alternative keyword associated with the at least one identified keyword category. The selecting may include consulting a taxonomy database to identify alternative keywords that are relevant to the first keyword. The system also includes ranking the at least one alternative keyword according to a ranking rule associated with the at least one keyword category associated with the at least one alternative keyword; and providing information associated with the ranked at least one alternative keyword to the user for selection by the user.

    Abstract translation: 系统包括接收关于与用户相关联的第一关键字的信息,其中第一关键词可由内容分发系统使用以基于与用户相关联的关键词选择分发内容。 该系统还包括获得与用户相关联的属性; 识别对应于该属性的至少一个关键字类别; 以及选择与所述至少一个所识别的关键字类别相关联的至少一个替代关键字。 选择可以包括咨询分类数据库以识别与第一关键字相关的备选关键字。 该系统还包括根据与至少一个替代关键字相关联的至少一个关键词类别相关联的排序规则对至少一个备选关键字进行排名; 以及向所述用户提供与所述排序的至少一个备选关键字相关联的信息以供所述用户选择。

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