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    • 1. 发明授权
    • Optical pulse correlator having an interferometer array
    • 具有干涉仪阵列的光脉冲相关器
    • US07324207B1
    • 2008-01-29
    • US11112245
    • 2005-04-22
    • Sean KirkpatrickAli A. SaidMark Allen DuganThomas SosnowskiPhilippe Bado
    • Sean KirkpatrickAli A. SaidMark Allen DuganThomas SosnowskiPhilippe Bado
    • G01B9/02
    • G01J11/00G01J9/02G01J2009/023G01J2009/0234
    • An optical device is useful for analyzing an optical signal pulse to determine information related to the pulse, such as information related to its temporal coherence length. The optical device generally includes a plurality of interferometric devices to generate one or more respective interference patterns from the optical signal pulse, and a plurality of detectors associated with each respective interferometric device to receive the one or more respective interference patterns. At least one of the plurality of interferometric devices is disposed in a glass substrate. The optical device may be integrated in an optical correlation system having an analyzer coupled to the plurality of detectors to determine the temporal coherence length or other pulse-related information for the optical signal pulse based on the received interference patterns.
    • 光学装置用于分析光信号脉冲以确定与脉冲相关的信息,例如与其时间相干长度相关的信息。 光学装置通常包括多个干涉装置以从光信号脉冲产生一个或多个相应的干涉图案,以及与每个相应的干涉仪装置相关联的多个检测器,以接收一个或多个相应的干涉图案。 多个干涉仪中的至少一个设置在玻璃基板中。 光学装置可以集成在具有耦合到多个检测器的分析器的光学相关系统中,以基于所接收的干涉图案来确定用于光信号脉冲的时间相干长度或其它脉冲相关信息。
    • 2. 发明授权
    • Optical sensing of fluid condition-method and apparatus
    • 流体条件方法和装置的光学感测
    • US07450235B1
    • 2008-11-11
    • US11037625
    • 2005-01-18
    • Ali A. SaidPhilippe BadoMark Allen Dugan
    • Ali A. SaidPhilippe BadoMark Allen Dugan
    • G01N21/00
    • G01N21/31G01N21/41G01N21/47G01N21/64
    • The invention relates to an apparatus and a method to monitor the condition of a fluid by measuring multiple optical properties of the fluid. The apparatus comprises of a body 105, at least one fluidic cavity 110 to capture a fluid sample, at least one light source 115 to emit an optical signal and at least one optical detector 120 to detect the optical signal. The fluid sample is collected continuously from a path of a fluid flow and multiple optical properties are measured in real time to determine the condition of the fluid. The apparatus is installed in-line with the path of the fluid flow in the system for which the fluid is being used and monitored. The apparatus avoids environmental contamination and wastage of the fluid sample by returning the fluid sample back into the fluid flow.
    • 本发明涉及通过测量流体的多个光学特性来监测流体状况的装置和方法。 该装置包括主体105,至少一个流体腔110以捕获流体样本,至少一个光源115发射光信号,以及至少一个光学检测器120以检测光信号。 流体样品从流体流动的路径连续收集,并且实时测量多个光学性质以确定流体的状态。 该装置与流体正被使用和监测的系统中的流体流动的路径一起安装。 该装置通过将流体样品返回到流体流中来避免流体样品的环境污染和浪费。
    • 3. 发明授权
    • Waveguide fabrication methods and devices
    • 波导制造方法和装置
    • US07391947B1
    • 2008-06-24
    • US11150928
    • 2005-06-13
    • Philippe BadoAli A. SaidMark A. DuganThomas Sosnowski
    • Philippe BadoAli A. SaidMark A. DuganThomas Sosnowski
    • G02B6/10
    • G02B6/13G02B2006/12169
    • A method of writing a waveguide using an ultrashort laser beam is disclosed. The laser beam is directed to a substrate in transverse relation to a waveguide propagation axis to generate an ultrashort laser pulse focus in the substrate. A refractive index is modified in an affected region in the substrate along the waveguide propagation axis via the ultrashort laser pulse focus, and the ultrashort laser pulse focus is moved in a direction other than the waveguide propagation axis to generate a widened affected region along the waveguide propagation axis. The widened affected region has a cross-sectional profile capable of supporting a fundamental mode of a signal having a telecommunications infrared (TIR) wavelength, while the affected region has a cross-sectional profile incapable of supporting the fundamental mode of the signal having the TIR wavelength.
    • 公开了一种使用超短激光束写入波导的方法。 激光束被引导到与波导传播轴线横向关系的衬底,以在衬底中产生超短激光脉冲聚焦。 折射率通过超短激光脉冲聚焦沿着波导传播轴在衬底的受影响区域中被修改,并且超短激光脉冲聚焦在除了波导传播轴线以外的方向上移动以沿着波导产生加宽的受影响区域 传播轴。 加宽的受影响区域具有能够支持具有电信红外(TIR)波长的信号的基本模式的横截面轮廓,而受影响区域具有不能支持具有TIR的信号的基本模式的横截面轮廓 波长。
    • 4. 发明授权
    • Waveguide fabrication methods and devices
    • 波导制造方法和装置
    • US07294454B1
    • 2007-11-13
    • US10676972
    • 2003-09-30
    • Ali A. SaidMark A. DuganThomas SosnowskiPhilippe Bado
    • Ali A. SaidMark A. DuganThomas SosnowskiPhilippe Bado
    • G11C13/04
    • G02B6/13G02B2006/12169
    • A method of writing a waveguide using an ultrashort laser beam is disclosed. The laser beam is directed to a substrate in transverse relation to a waveguide propagation axis to generate an ultrashort laser pulse focus in the substrate. A refractive index is modified in an affected region in the substrate along the waveguide propagation axis via the ultrashort laser pulse focus, and the ultrashort laser pulse focus is moved in a direction other than the waveguide propagation axis to generate a widened affected region along the waveguide propagation axis. The widened affected region has a cross-sectional profile capable of supporting a fundamental mode of a signal having a telecommunications infrared (TIR) wavelength, while the affected region has a cross-sectional profile incapable of supporting the fundamental mode of the signal having the TIR wavelength.
    • 公开了一种使用超短激光束写入波导的方法。 激光束被引导到与波导传播轴线横向关系的衬底,以在衬底中产生超短激光脉冲聚焦。 折射率通过超短激光脉冲聚焦沿着波导传播轴在衬底的受影响区域中改变,并且超短激光脉冲聚焦在除了波导传播轴线以外的方向上移动以沿着波导产生加宽的受影响区域 传播轴。 加宽的受影响区域具有能够支持具有电信红外(TIR)波长的信号的基本模式的横截面轮廓,而受影响区域具有不能支持具有TIR的信号的基本模式的横截面轮廓 波长。
    • 9. 发明授权
    • Method, system and apparatus for monitoring variations in the size of particles present in a fluid
    • 用于监测流体中存在的颗粒尺寸变化的方法,系统和装置
    • US07679742B2
    • 2010-03-16
    • US11712274
    • 2007-02-28
    • Thomas F. HaddockMark Allen DuganAli SaidPhilippe Bado
    • Thomas F. HaddockMark Allen DuganAli SaidPhilippe Bado
    • G01N15/02
    • G01N15/0205G01N2015/0092
    • The present invention relates to a method, system and apparatus for continuously monitoring variations in the size of particles present in a fluid on a real time basis. The method comprises of passing one or more optical signal through the fluid such as engine oil. The variation (attenuation or enhancement) in the intensity of the optical signal is continuously measured with respect to time. In an embodiment, the method, system and apparatus of the present invention enable monitoring of the amount, size and onset of particle agglomeration using single or multiple wavelengths as interrogating optical signal(s). An exemplary embodiment is provided for monitoring of the amount, size and onset of soot particle agglomeration in engine oil using single or multiple wavelengths as interrogating optical signal(s).
    • 本发明涉及一种用于连续监测流体中存在的颗粒尺寸的变化的方法,系统和装置。 该方法包括使一个或多个光信号通过诸如发动机油的流体。 相对于时间连续地测量光信号强度的变化(衰减或增强)。 在一个实施例中,本发明的方法,系统和装置能够使用单个或多个波长作为询问光信号来监测粒子聚集的数量,大小和开始。 提供了一个示例性实施例,用于使用单个或多个波长作为询问光信号来监测发动机油中烟灰颗粒聚集的量,尺寸和开始。