Wavelength selective switching device and method for selectively transmitting optical signals based on wavelength
    2.
    发明授权
    Wavelength selective switching device and method for selectively transmitting optical signals based on wavelength 失效
    波长选择性开关器件及其方法,用于选择性地传输基于波长的光信号

    公开(公告)号:US07106512B2

    公开(公告)日:2006-09-12

    申请号:US11255502

    申请日:2005-10-21

    IPC分类号: G02B5/18 G02B27/44

    摘要: A wavelength selective switching device and method for selectively transmitting optical signals based on wavelength utilizes diffraction to spatially separate the optical signals of different wavelengths such that the optical signal of a selected wavelength can be selectively transmitted. The wavelength selective switching device selectively rotates the polarization components of the optical signals such that the polarization states of the polarization components are the same in both incoming and outgoing directions at the diffraction grating. Thus, a diffraction grating with a high grating line frequency (e.g. greater than 900 grating lines per mm for signals in the 1550 nm wavelength range) can be used for diffracting the polarization components of the optical signals in both the incoming and outgoing directions.

    摘要翻译: 用于基于波长选择性地发射光信号的波长选择性开关装置和方法利用衍射来空间分离不同波长的光信号,使得可以选择性地发射所选波长的光信号。 波长选择开关器件选择性地旋转光信号的偏振分量,使得偏振分量的偏振状态在衍射光栅的入射方向和出射方向都相同。 因此,可以使用具有高光栅线频率(例如,对于1550nm波长范围内的信号来说,每毫米大于900个光栅线数)的衍射光栅来衍射光信号在入射和出射方向上的偏振分量。

    Wavelength selective switching device and method for selectively transmitting optical signals based on wavelength
    3.
    发明申请
    Wavelength selective switching device and method for selectively transmitting optical signals based on wavelength 失效
    波长选择性开关器件及其方法,用于选择性地传输基于波长的光信号

    公开(公告)号:US20050073749A1

    公开(公告)日:2005-04-07

    申请号:US10680647

    申请日:2003-10-07

    IPC分类号: G02F1/01 H04Q11/00 G02B5/30

    摘要: A wavelength selective switching device and method for selectively transmitting optical signals based on wavelength utilizes diffraction to spatially separate the optical signals of different wavelengths such that the optical signal of a selected wavelength can be selectively transmitted. The wavelength selective switching device selectively rotates the polarization components of the optical signals such that the polarization states of the polarization components are the same in both incoming and outgoing directions at the diffraction grating. Thus, a diffraction grating with a high grating line frequency (e.g. greater than 900 grating lines per mm for signals in the 1550 nm wavelength range) can be used for diffracting the polarization components of the optical signals in both the incoming and outgoing directions.

    摘要翻译: 用于基于波长选择性地发射光信号的波长选择性开关装置和方法利用衍射来空间分离不同波长的光信号,使得可以选择性地发射所选波长的光信号。 波长选择开关器件选择性地旋转光信号的偏振分量,使得偏振分量的偏振状态在衍射光栅的入射方向和出射方向都相同。 因此,可以使用具有高光栅线频率(例如,对于1550nm波长范围内的信号来说,每毫米大于900个光栅线数)的衍射光栅来衍射光信号在入射和出射方向上的偏振分量。

    Liquid crystal cell that resists degradation from exposure to radiation
    6.
    发明申请
    Liquid crystal cell that resists degradation from exposure to radiation 失效
    防止暴露于辐射降解的液晶单元

    公开(公告)号:US20050128367A1

    公开(公告)日:2005-06-16

    申请号:US10736090

    申请日:2003-12-15

    摘要: Embodiments of the invention involve UV resistant liquid crystal cells. One embodiment of the invention is to increase the volume of the liquid crystal material that is stored inside the cell. For example, trenches may be used to provide reservoirs that hold the additional liquid crystal material. Another embodiment of the invention uses an inorganic alignment layer in the cell, instead of using an organic material as the alignment layer. A further embodiment of the invention uses a pump to circulate liquid crystal material through the cell. The inventive cell can be used as a SLM in photolithographic imaging systems.

    摘要翻译: 本发明的实施方案涉及耐UV液晶单元。 本发明的一个实施例是增加存储在电池内部的液晶材料的体积。 例如,可以使用沟槽来提供保持附加液晶材料的储存器。 本发明的另一个实施方案使用细胞中的无机取向层,而不是使用有机材料作为取向层。 本发明的另一实施例使用泵将液晶材料循环通过电池。 本发明的电池可以用作光刻成像系统中的SLM。

    Pressure distribution sensor and sensing method
    9.
    发明申请
    Pressure distribution sensor and sensing method 失效
    压力分布传感器和传感方法

    公开(公告)号:US20070113681A1

    公开(公告)日:2007-05-24

    申请号:US11286193

    申请日:2005-11-22

    IPC分类号: G01D7/00

    CPC分类号: G06F3/0414

    摘要: A spatial pressure distribution sensor comprises a sensor array and a processor. The sensor array comprises an array of pressure sensors. Each of the pressure sensors is operable to generate a respective pressure signal in response to pressure applied to it. The pressure signal quantifies the pressure with greater than single-bit resolution. The processor is operable in response to the pressure signals to generate an information signal representing the spatial distribution of pressure applied to the sensor array.

    摘要翻译: 空间压力分布传感器包括传感器阵列和处理器。 传感器阵列包括压力传感器阵列。 每个压力传感器可操作以响应于施加到其上的压力产生相应的压力信号。 压力信号以大于单位分辨率量化压力。 处理器响应于压力信号而可操作以产生表示施加到传感器阵列的压力的空间分布的信息信号。

    Detecting wireless channel status from acoustic discrimination of spectral content
    10.
    发明申请
    Detecting wireless channel status from acoustic discrimination of spectral content 失效
    从频谱内容的声学辨别中检测无线信道状态

    公开(公告)号:US20070058707A1

    公开(公告)日:2007-03-15

    申请号:US11226974

    申请日:2005-09-15

    IPC分类号: H04B17/00

    CPC分类号: H04W72/02 H04W72/085

    摘要: Systems and methods of detecting wireless channel status from acoustic discrimination of spectral content are described. In one aspect, a wireless system includes a spectrum analyzer, a detector, and a controller. The spectrum analyzer is operable to acoustically discriminate spectral content of an input electrical signal in multiple discrete frequency channels. The detector is operable to determine respective statuses of the frequency channels from the acoustically discriminated spectral content. The controller is operable to select one of the frequency channels based on the determined statuses of the frequency channels.

    摘要翻译: 描述了从频谱内容的声学鉴别中检测无线信道状态的系统和方法。 一方面,无线系统包括频谱分析仪,检测器和控制器。 频谱分析仪可用于在多个离散频道中声学地区分输入电信号的频谱含量。 检测器可操作以从声学鉴别的频谱内容确定频道的各自状态。 控制器可操作以基于所确定的频率信道的状态来选择一个频率信道。