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    METHOD AND SYSTEM FOR LASER MARKING IN THE VOLUME OF GEMSTONES SUCH AS DIAMONDS
    1.
    发明申请
    METHOD AND SYSTEM FOR LASER MARKING IN THE VOLUME OF GEMSTONES SUCH AS DIAMONDS 有权
    用于激光标记的方法和系统，如石墨等

    公开(公告)号：US20060196858A1

    公开(公告)日：2006-09-07

    申请号：US11161917

    申请日：2005-08-22

    申请人： Wes Barron ,  Bruno Bourliaguet ,  Marc Levesque ,  Alain Cournoyer ,  Daniel Cantin ,  Yves Champagne

    发明人： Wes Barron ,  Bruno Bourliaguet ,  Marc Levesque ,  Alain Cournoyer ,  Daniel Cantin ,  Yves Champagne

    IPC分类号： B23K26/00

    CPC分类号： B23K26/03 ,  A44C17/00 ,  A44C27/00 ,  B23K26/032 ,  B23K26/361 ,  B23K2101/007 ,  B41M5/24 ,  B42D25/43 ,  B42D2035/44 ,  B44F1/06 ,  C04B41/0036 ,  C04B41/009 ,  G01N21/87 ,  C04B14/00

    摘要： A method and an apparatus for laser marking indicia in the volume of gemstones such as diamonds, the indicia being made up of a plurality of microscopic dot-shaped marks whose build-up can be initiated by exposing naturally-occurring internal defects or impurities in the volume of a gemstone to a tightly focused train of laser pulses. Authentication data is encoded in the gemstone from the relative spatial arrangement of the dot-shaped marks that form the indicium. Taking advantage of the presence of otherwise invisible defects in the gemstone allows for inscribing indicia with laser pulses carrying energies substantially lower than the threshold energy required for inscribing in the volume of a perfect gemstone material. The marking process is then much less susceptible to inflict damages to the surface of the gemstone, and the marking can be performed using a broad variety of femtosecond laser systems. The dot-shaped marks engraved at a depth below the surface of a gemstone can be made undetectable with the unaided eye or with a loupe by limiting their individual size to a few micrometres, while devising indicia made up of only a few marks. As a result, the marking does not detract from the appearance and value of the gemstone. The procedure for laser marking accounts for the random spatial distribution of the defects present in natural gemstones as well as for their strongly localized character. The presence of an indicium can be detected by using a dedicated optical reader that can be afforded by every jewellery store.

    摘要翻译： 一种用于在诸如钻石的宝石体积中的激光标记的方法和装置，该标记由多个微小的点状标记组成，其积聚可以通过暴露天然存在的内部缺陷或杂质 一个宝石的体积到一个紧密集中的激光脉冲序列。 从形成标记的点状标记的相对空间排列，认证数据被编码在宝石中。 利用宝石中其他不可见缺陷的存在，允许用激光脉冲刻印标记，该激光脉冲承载的能量大大低于在完美宝石材料的体积上所需的阈值能量。 然后，标记过程不太可能对宝石表面造成损害，并且标记可以使用各种各样的飞秒激光系统进行。 雕刻在宝石表面下方的深度上的点状标记可以通过将其个体尺寸限制在几微米之内而与肉眼无关，或者通过将其个体尺寸限制在几微米之内，同时设计仅由几个标记构成的标记。 因此，标记不会降低宝石的外观和价值。 激光标记的程序解释了天然宝石中存在的缺陷的随机空间分布以及它们的强烈局部化特征。 可以通过使用可由每个珠宝店提供的专用光学读取器来检测标记的存在。

    Method and system for laser marking in the volume of gemstones such as diamonds
    2.
    发明授权
    Method and system for laser marking in the volume of gemstones such as diamonds 有权
    用于激光打标的方法和系统中的宝石体积如钻石

    公开(公告)号：US07284396B2

    公开(公告)日：2007-10-23

    申请号：US11161917

    申请日：2005-08-22

    申请人： Wes Barron ,  Bruno Bourliaguet ,  Marc Levesque ,  Alain Cournoyer ,  Daniel Cantin ,  Yves Champagne

    发明人： Wes Barron ,  Bruno Bourliaguet ,  Marc Levesque ,  Alain Cournoyer ,  Daniel Cantin ,  Yves Champagne

    IPC分类号： A44C17/00 ,  B23K26/40 ,  B23K26/03

    CPC分类号： B23K26/03 ,  A44C17/00 ,  A44C27/00 ,  B23K26/032 ,  B23K26/361 ,  B23K2101/007 ,  B41M5/24 ,  B42D25/43 ,  B42D2035/44 ,  B44F1/06 ,  C04B41/0036 ,  C04B41/009 ,  G01N21/87 ,  C04B14/00

    摘要： A method and an apparatus for laser marking indicia in the volume of gemstones such as diamonds, the indicia being made up of a plurality of microscopic dot-shaped marks whose build-up can be initiated by exposing naturally-occurring internal defects or impurities in the volume of a gemstone to a tightly focused train of laser pulses. Authentication data is encoded in the gemstone from the relative spatial arrangement of the dot-shaped marks that form the indicium. Taking advantage of the presence of otherwise invisible defects in the gemstone allows for inscribing indicia with laser pulses carrying energies substantially lower than the threshold energy required for inscribing in the volume of a perfect gemstone material. The marking process is then much less susceptible to inflict damages to the surface of the gemstone, and the marking can be performed using a broad variety of femtosecond laser systems. The dot-shaped marks engraved at a depth below the surface of a gemstone can be made undetectable with the unaided eye or with a loupe by limiting their individual size to a few micrometers, while devising indicia made up of only a few marks. As a result, the marking does not detract from the appearance and value of the gemstone. The procedure for laser marking accounts for the random spatial distribution of the defects present in natural gemstones as well as for their strongly localized character. The presence of an indicium can be detected by using a dedicated optical reader that can be afforded by every jewellery store.

    摘要翻译： 一种用于在诸如钻石的宝石体积中的激光标记的方法和装置，该标记由多个微小的点状标记组成，其积聚可以通过暴露天然存在的内部缺陷或杂质而引发 一个宝石的体积到一个紧密集中的激光脉冲序列。 从形成标记的点状标记的相对空间排列，认证数据被编码在宝石中。 利用宝石中其他不可见缺陷的存在，允许用激光脉冲刻印标记，该激光脉冲承载的能量大大低于在完美宝石材料的体积上所需的阈值能量。 然后，标记过程不太可能对宝石表面造成损害，并且标记可以使用各种各样的飞秒激光系统进行。 雕刻在宝石表面下方的深度上的点状标记可以通过将其个体尺寸限制在几微米之内而与肉眼无关，或者通过将其个体尺寸限制在几微米之内，同时设计仅由几个标记构成的标记。 因此，标记不会降低宝石的外观和价值。 激光标记的程序解释了天然宝石中存在的缺陷的随机空间分布以及它们的强烈局部化特征。 可以通过使用可由每个珠宝店提供的专用光学读取器来检测标记的存在。

    METHOD AND SYSTEM TO MEASURE THE CONCENTRATION OF CONSTITUENT ELEMENTS IN AN INHOMOGENEOUS MATERIAL USING LIBS
    3.
    发明申请
    METHOD AND SYSTEM TO MEASURE THE CONCENTRATION OF CONSTITUENT ELEMENTS IN AN INHOMOGENEOUS MATERIAL USING LIBS 审中-公开
    方法和系统，用于测量不均匀材料中元素元素的浓度

    公开(公告)号：US20100324832A1

    公开(公告)日：2010-12-23

    申请号：US12681022

    申请日：2008-04-04

    申请人： Marc Levesque ,  Alain Cournoyer

    发明人： Marc Levesque ,  Alain Cournoyer

    IPC分类号： G06F19/00 ,  G01J3/30

    CPC分类号： G01N21/718

    摘要： A system and method to improve the accuracy of the measure of constituent element(s) in a sample containing domains potentially including the constituent element(s) are described herein. For each domain, the volume of the domain is estimated and the concentration of the constituent element(s) in the domain is determined using LIBS. When all the domains have been analyzed, the volumetric concentration of the domains is summed and divided by the total volume of the sample. Accordingly, by limiting the concentration analysis to separate domains, it is possible to improve the accuracy of the concentration analysis.

    摘要翻译： 本文描述了提高包含可能包括构成元件的域的样品中组成元素的测量精度的系统和方法。 对于每个域，估计域的体积，并使用LIBS确定域中组成元素的浓度。 当所有域被分析时，将域的体积浓度相加并除以样品的总体积。 因此，通过将浓度分析限于分离的区域，可以提高浓度分析的准确性。

    Prismatic reflection optical waveguide device
    6.
    发明授权
    Prismatic reflection optical waveguide device 失效
    棱镜反射光波导器件

    公开(公告)号：US07062125B2

    公开(公告)日：2006-06-13

    申请号：US10408889

    申请日：2003-04-08

    申请人： Alain Cournoyer ,  Marc Levesque

    发明人： Alain Cournoyer ,  Marc Levesque

    IPC分类号： G02B6/34 ,  G02B6/26

    CPC分类号： G02B6/02 ,  G02B6/2817

    摘要： A prismatic reflection optical waveguide device having an input and an output optical waveguide segments and a reflection interface provided therebetween apt to convey a light beam from one direction to another, wherein the light beam is conveyed by a single reflection on the reflection interface. Such a prismatic reflection optical waveguide device may, for example, be used as an optical waveguide sensor for measuring the refractive index of a sample medium. The measuring range and/or the sensitivity of such an optical waveguide sensor may be adjusted according to a particular application. Such a prismatic reflection optical waveguide device may also be used as a generally lossless bent optical waveguide wherein the reflection interface works as a mirror for reflecting the light beam coming from the input segment to the output segment, thereby providing a generally lossless transmission.

    摘要翻译： 一种棱镜反射光波导器件，其具有输入和输出光波导段和设置在其间的反射界面，其适于将光束从一个方向传送到另一个方向，其中光束通过反射界面上的单反射传送。 例如，这种棱镜反射光波导装置可以用作用于测量样品介质的折射率的光波导传感器。 这种光波导传感器的测量范围和/或灵敏度可以根据具体应用进行调整。 这样的棱镜反射光波导器件也可以用作通常为无损弯曲的光波导，其中反射界面用作将来自输入段的光束反射到输出段的反射镜，由此提供通常无损耗的透射。

    Method and apparatus for detection of defects using thermal stimulation
    9.
    发明授权
    Method and apparatus for detection of defects using thermal stimulation 失效
    使用热刺激检测缺陷的方法和装置

    公开(公告)号：US06840667B2

    公开(公告)日：2005-01-11

    申请号：US10419709

    申请日：2003-04-18

    申请人： Jerry Schlagheck ,  Marc Pastor ,  Marc Levesque ,  Alain Cournoyer

    发明人： Jerry Schlagheck ,  Marc Pastor ,  Marc Levesque ,  Alain Cournoyer

    IPC分类号： G01N25/72

    CPC分类号： G01N25/72

    摘要： A method for inspecting an object and detecting defects is taught (BGA and Flip-Chip solder joints on a PCB particularly). The method comprises injecting a thermal stimulation on the object; capturing a sequence of consecutive infrared images of the object to record heat diffusion resulting from the heat pulse; comparing the heat diffusion on said object to a reference; and determining whether the object comprises any defects. Also described is a system comprising a mounting for mounting the object; a thermal stimulation module for applying a thermal stimulation to the bottom surface of the object; an infrared camera for capturing infrared images of the object on the top surface of the object to record a change in infrared radiation from the top surface resulting from the thermal stimulation; and a computer for comparing the change in infrared radiation within a region on the top surface to a reference and determining whether the object comprises any defects.

    摘要翻译： 教导了一种检测物体和检测缺陷的方法（特别是PCB上的BGA和Flip-Chip焊点）。 该方法包括在物体上注入热刺激; 捕获对象的连续红外图像的序列，以记录由热脉冲引起的热扩散; 将所述物体上的热扩散与参考进行比较; 并确定对象是否包含任何缺陷。 还描述了一种包括用于安装物体的安装件的系统; 用于将热刺激施加到所述物体的底表面的热刺激模块; 用于捕获物体顶表面上的物体的红外图像以记录由热刺激产生的来自顶表面的红外辐射的变化的红外相机; 以及用于将顶表面上的区域中的红外辐射的变化与参考进行比较并确定对象是否包括任何缺陷的计算机。

    Method and system to measure the concentration of constituent elements in an inhomogeneous material using LIBS
    10.
    发明申请
    Method and system to measure the concentration of constituent elements in an inhomogeneous material using LIBS 有权
    使用LIBS测量不均匀材料中组成元素浓度的方法和系统

    公开(公告)号：US20090091745A1

    公开(公告)日：2009-04-09

    申请号：US11973009

    申请日：2007-10-04

    申请人： Marc Levesque ,  Alain Cournoyer

    发明人： Marc Levesque ,  Alain Cournoyer

    IPC分类号： G01N21/00

    CPC分类号： G01N21/718

    摘要： A system and method to improve the accuracy of the measure of constituent element(s) in a sample containing domains potentially including the constituent element(s) are described herein. For each domain, the volume of the domain is estimated and the concentration of the constituent element(s) in the domain is determined using LIBS. When all the domains have been analyzed, the volumetric concentration of the domains is summed and divided by the total volume of the sample. Accordingly, by limiting the concentration analysis to separate domains, it is possible to improve the accuracy of the concentration analysis.

    摘要翻译： 本文描述了提高包含可能包括构成元件的域的样品中组成元素的测量精度的系统和方法。 对于每个域，估计域的体积，并使用LIBS确定域中组成元素的浓度。 当所有域被分析时，将域的体积浓度相加并除以样品的总体积。 因此，通过将浓度分析限于分离的区域，可以提高浓度分析的准确性。