利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.035 秒)

    Method to characterize material using mathematical propagation models and ultrasonic signal
    2.
    发明申请
    Method to characterize material using mathematical propagation models and ultrasonic signal 有权
    使用数学传播模型和超声波信号来表征材料的方法

    公开(公告)号：US20050102109A1

    公开(公告)日：2005-05-12

    申请号：US10975560

    申请日：2004-10-28

    申请人： Marc Dubois ,  Peter Lorraine ,  Robert Filkins

    发明人： Marc Dubois ,  Peter Lorraine ,  Robert Filkins

    IPC分类号： G01N29/24 ,  G01N29/44 ,  G01N29/48 ,  G01B5/28

    CPC分类号： G01N29/48 ,  G01N29/0645 ,  G01N29/2418 ,  G01N29/4418

    摘要： The invention is directed to a system and method for detecting defects in a manufactured object. These defects may include flaws, delaminations, voids, fractures, fissures, or cracks, among others. The system utilizes an ultrasound measurement system, a signal analyzer and an expected result. The signal analyzer compares the signal from the measurement system to the expected result. The analysis may detect a defect or measure an attribute of the manufactured object. Further, the analysis may be displayed or represented. In addition, the expected result may be generated from a model such as a wave propagation model. One embodiment of the invention is a laser ultrasound detection system in which a laser is used to generate an ultrasonic signal. The signal analyzer compares the measured ultrasonic signal to an expected result. This expected result is generated from a wave propagation model. The analysis is then displayed on a monitor.

    摘要翻译： 本发明涉及一种用于检测制造对象中的缺陷的系统和方法。 这些缺陷可能包括缺陷，分层，空隙，裂缝，裂缝或裂纹等。 该系统利用超声测量系统，信号分析仪和预期结果。 信号分析仪将来自测量系统的信号与预期结果进行比较。 分析可以检测缺陷或测量所制造的对象的属性。 此外，可以显示或表示分析。 此外，可以从诸如波传播模型的模型生成预期结果。 本发明的一个实施例是激光超声波检测系统，其中使用激光来产生超声波信号。 信号分析仪将测量的超声信号与预期结果进行比较。 该预期结果是从波传播模型产生的。 然后将分析显示在监视器上。

    System and method for X-ray generation
    3.
    发明申请
    System and method for X-ray generation 失效
    用于X射线产生的系统和方法

    公开(公告)号：US20050213708A1

    公开(公告)日：2005-09-29

    申请号：US10812339

    申请日：2004-03-29

    申请人： Brian Lawrence ,  Robert Filkins ,  Peter Lorraine

    发明人： Brian Lawrence ,  Robert Filkins ,  Peter Lorraine

    IPC分类号： G21K1/00 ,  G21G4/00 ,  H01J35/00 ,  H01S3/00 ,  H01S4/00 ,  H05G2/00 ,  H05H1/00 ,  H05H13/04

    CPC分类号： H01S3/083 ,  H01S3/1109 ,  H05G2/00

    摘要： The invention provides a system for generating X-rays via the process of inverse Compton scattering. The system includes a high repetition rate laser adapted to direct high-energy optical pulses in a first direction in a laser cavity and a source of pulsed electron beam adapted to direct electron beam in a second direction opposite to the first direction in the laser cavity. The electron beam interacts with photons in the optical pulses in the laser cavity to produce X-rays in the second direction.

    摘要翻译： 本发明提供一种通过反康普顿散射过程产生X射线的系统。 该系统包括高激光器，其适于在激光腔中沿第一方向引导高能光脉冲，以及适于在与激光腔中的第一方向相反的第二方向上引导电子束的脉冲电子束源。 电子束与激光腔中的光脉冲中的光子相互作用以在第二方向产生X射线。

    System and method to reduce laser noise for improved interferometric laser ultrasound detection
    4.
    发明申请
    System and method to reduce laser noise for improved interferometric laser ultrasound detection 有权
    减少激光噪声的系统和方法，用于改进干涉激光超声检测

    公开(公告)号：US20050099634A1

    公开(公告)日：2005-05-12

    申请号：US10703655

    申请日：2003-11-07

    申请人： Marc Dubois ,  Kent Burr ,  Thomas Drake ,  Peter Lorraine

    发明人： Marc Dubois ,  Kent Burr ,  Thomas Drake ,  Peter Lorraine

    IPC分类号： G01B9/02 ,  G01H9/00

    CPC分类号： G01H9/00

    摘要： The present invention provides an optical filter assembly that reduces the phase and amplitude noise of a detection laser used to detect ultrasonic displacements. The filtered detection laser is directed to the surface of a remote target. Ultrasonic displacements at the surface scatter the filtered detection laser. Collection optics then gather phase modulated light scattered by the surface and direct the phase modulated light to an optical processor to produce a signal representative of the ultrasonic displacements with an improved SNR. Additional processors may determine the structure of the remote target.

    摘要翻译： 本发明提供一种滤光器组件，其减少用于检测超声波位移的检测激光器的相位和幅度噪声。 滤波的检测激光器被引导到远程目标的表面。 表面上的超声波位移散射了滤波的检测激光。 收集光学器件然后收集由表面散射的相位调制光，并将相位调制光引导到光学处理器以产生表示具有改善的SNR的超声波位移的信号。 附加处理器可以确定远程目标的结构。

    LONG-WAVELENGTH INFRA-RED NIGHT VISION GOGGLES
    6.
    发明申请
    LONG-WAVELENGTH INFRA-RED NIGHT VISION GOGGLES 有权
    长波长红黑夜视景观

    公开(公告)号：US20080245966A1

    公开(公告)日：2008-10-09

    申请号：US11132789

    申请日：2005-05-18

    申请人： Pingfan Wu ,  George Dalakos ,  Peter Lorraine ,  Brian Lawrence

    发明人： Pingfan Wu ,  George Dalakos ,  Peter Lorraine ,  Brian Lawrence

    IPC分类号： G01J5/00

    CPC分类号： H01J31/50 ,  G02B23/12 ,  H01J2231/50026 ,  H04N5/33

    摘要： A night vision apparatus and method comprising employing a detector operating in the 7 to 14 microns wavelength region, converting via electronics and/or photonics the received light to the region visible to the human eye, and displaying the visible light on a display, wherein a housing contains the detector, the electronics and/or photonics, and the display.

    摘要翻译： 一种夜视设备和方法，包括采用在7至14微米波长区域中操作的检测器，通过电子学和/或光子学将接收的光转换到人眼可见的区域，并将可见光显示在显示器上，其中 壳体包含检测器，电子和/或光子以及显示器。

    Passive broad long wave and mid-wave infrared optical limiting prism
    7.
    发明申请
    Passive broad long wave and mid-wave infrared optical limiting prism 有权
    被动宽波长和中波红外光学极化棱镜

    公开(公告)号：US20060132905A1

    公开(公告)日：2006-06-22

    申请号：US11012106

    申请日：2004-12-16

    申请人： Pingfan Wu ,  George Dalakos ,  Brian Lawrence ,  Peter Lorraine

    发明人： Pingfan Wu ,  George Dalakos ,  Brian Lawrence ,  Peter Lorraine

    IPC分类号： G02B5/08 ,  G02B5/20

    CPC分类号： G02B5/04 ,  G02B5/00 ,  G02B5/08 ,  G02B5/208

    摘要： Method for limiting the amount of radiation impinging on a radiation sensitive detector that is responsive to signals of interest having infrared wavelengths of approximately 3 to 14 microns, such as an infrared camera. The method includes: directing a radiation signal through a prism and toward the radiation sensitive detector; permitting the radiation signal to impinge upon the radiation sensitive detector, e.g. upon an infrared focal plane array in the camera, when the radiation is below a predetermined threshold; and directing radiation associated with the radiation signal but having wavelengths different from said signals of interest—e.g., wavelengths in the visible and near-infrared range—on a path external to the prism, in order to initiate the limiting of the radiation impinging upon the radiation sensitive detector when the predetermined threshold is exceeded. Also, a Total Internal Reflection device that includes a prism having a thin film coated on the back surface of said prism. The material making up the prism and the thin film are selected so that, in the presence of radiation having an intensity less than a certain threshold, the refractive index of the thin film is lower than that of the prism, and when the radiation has an intensity higher than that certain threshold, the refractive index of the thin film is higher than that of the prism.

    摘要翻译： 用于限制辐射敏感检测器上的辐射量的方法，其响应于红外波长为约3至14微米的感兴趣信号，例如红外相机。 该方法包括：将辐射信号引导通过棱镜并朝向辐射敏感检测器; 允许辐射信号照射在辐射敏感检测器上，例如。 在相机中的红外焦平面阵列上，当辐射低于预定阈值时; 并且引导与辐射信号相关联的辐射，但是具有不同于感兴趣信号的波长（例如在可见光和近红外范围内的波长）在棱镜外部的路径上，以便开始限制辐射入射到 超过预定阈值时的辐射敏感检测器。 另外，全内反射装置，其包括具有涂覆在所述棱镜的后表面上的薄膜的棱镜。 选择构成棱镜和薄膜的材料，使得在存在强度小于某一阈值的辐射的情况下，薄膜的折射率低于棱镜的折射率，并且当辐射具有 强度高于该阈值，薄膜的折射率高于棱镜的折射率。

    ULTRA-FAST ALL-OPTICAL SWITCH ARRAY
    8.
    发明申请
    ULTRA-FAST ALL-OPTICAL SWITCH ARRAY 有权
    超快速全光开关阵列

    公开(公告)号：US20060067610A1

    公开(公告)日：2006-03-30

    申请号：US10951346

    申请日：2004-09-28

    申请人： Pingfan Wu ,  George Dalakos ,  Peter Lorraine ,  Brian Lawrence

    发明人： Pingfan Wu ,  George Dalakos ,  Peter Lorraine ,  Brian Lawrence

    IPC分类号： G02B6/26 ,  G02B6/42

    CPC分类号： G02F1/31 ,  G02B6/3546 ,  G02B6/356 ,  G02F1/0126 ,  G02F1/0147 ,  G02F2202/34

    摘要： An all-optical switching array for switching a direction of optical signals is presented. The all-optical switching array includes a first substrate. Furthermore, the all-optical switching array includes a plurality of optical switches disposed on the first substrate, wherein each of the plurality of optical switches comprises a first state and a second state and is configured to change the direction of an optical signal, depending on whether the optical switch is in the first state or the second state. The transition of the switch between the first state and the second state is triggered by an ultra-fast laser beam.

    摘要翻译： 提出了一种用于切换光信号方向的全光开关阵列。 全光开关阵列包括第一衬底。 此外，全光开关阵列包括设置在第一基板上的多个光开关，其中多个光开关中的每一个包括第一状态和第二状态，并且被配置为改变光信号的方向，这取决于 光开关是处于第一状态还是第二状态。 第一状态和第二状态之间的开关的转变由超快激光束触发。

    Passive broadband long wave and mid-wave infrared optical limiter device
    9.
    发明授权
    Passive broadband long wave and mid-wave infrared optical limiter device 有权
    被动宽带长波和中波红外光限幅器

    公开(公告)号：US07494232B2

    公开(公告)日：2009-02-24

    申请号：US11012138

    申请日：2004-12-16

    申请人： Pingfan Wu ,  George Dalakos ,  Brian Lawrence ,  Peter Lorraine ,  William Taylor Yenisch

    发明人： Pingfan Wu ,  George Dalakos ,  Brian Lawrence ,  Peter Lorraine ,  William Taylor Yenisch

    IPC分类号： G02B27/00 ,  G02F1/01

    CPC分类号： H04N5/33 ,  G01J1/04 ,  G01J1/0488 ,  G01J2001/0276 ,  G02B5/208

    摘要： Method for limiting amount of radiation impinging on a radiation-sensitive detector device by directing radiation toward the detector, permitting the radiation to impinge upon the detector device when the radiation is below a predetermined threshold, and utilizing radiation having wavelengths different from signals of interest to initiate limiting of the radiation impinging upon the detector when the predetermined threshold is exceeded. The optical limiter includes an IR limiting layer pair selected so that energy from visible and near infrared radiation activates the optical limiter. The limiting layer pair may includes a layer closer to the source of radiation of e.g. vanadium dioxide, vanadium sesquioxide, or germanium crystal and a layer further from the source of radiation of e.g. chalcogenide glass, germanium crystal, or sodium chloride crystal.

    摘要翻译： 用于通过将辐射引向检测器来限制照射在辐射敏感检测器装置上的辐射量的方法，当辐射低于预定阈值时，允许辐射撞击检测器装置，并且利用与感兴趣的信号不同的波长的辐射 当超过预定阈值时，开始限制入射到检测器上的辐射。 光限制器包括选择的IR限制层对，使得来自可见光和近红外辐射的能量激活光限制器。 限制层对可以包括更接近例如辐射源的层。 二氧化钒，二氧化钒钒或锗晶体，以及远离辐射源的层。 硫族化物玻璃，锗晶体或氯化钠晶体。