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1. 发明授权

US07284396B2 Method and system for laser marking in the volume of gemstones such as diamonds 有权
标题翻译：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。

2. 发明申请

US20060196858A1 METHOD AND SYSTEM FOR LASER MARKING IN THE VOLUME OF GEMSTONES SUCH AS DIAMONDS 有权
标题翻译：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。

3. 发明授权

US06396857B1 Laser diode assembly 有权
标题翻译：激光二极管组件
公开(公告)号：US06396857B1
公开(公告)日：2002-05-28
申请号：US09477073
申请日：2000-01-03
申请人： Bruno Labranche , Yves Champagne , Deni Bonnier , André Parent
发明人： Bruno Labranche , Yves Champagne , Deni Bonnier , André Parent
IPC分类号： H01S304
CPC分类号： H01S5/02272 , H01L2924/0002 , H01S5/02252 , H01S5/02276 , H01S5/02476 , H01S5/4018 , H01S5/405 , H01L2924/00
摘要： An improved laser diode assembly and a method of making such an assembly are provided. The assembly has a substrate wherein channels are formed to receive laser diodes. The channels have an inwardly tapering shape, with a first side wall generally perpendicular to the front surface of the substrate and a second side wall at an angle with the first side wall. A metallic coating is provided over the front surface and the side walls of the channels, with a break at the bottom of the channels. Laser diode bars are mounted along the first side wall of each channel, and a conductive body such as a metallic wire is wedged between the laser diode bar and the opposite tilted side wall. The laser diode bars and wires are held in place by a solder layer. Advantageously, this assembly can be manufactured with less stringent fabrication tolerances than with known laser diode arrays.
摘要翻译：提供了一种改进的激光二极管组件和制造这种组件的方法。组件具有衬底，其中形成通道以接收激光二极管。通道具有向内渐缩的形状，其中第一侧壁大致垂直于基板的前表面，第二侧壁与第一侧壁成一定角度。在通道的前表面和侧壁上设置金属涂层，在通道的底部具有断裂。激光二极管棒沿着每个通道的第一侧壁安装，并且诸如金属线的导电体楔入激光二极管条和相对倾斜的侧壁之间。激光二极管棒和电线通过焊料层保持在适当的位置。有利地，该组件可以制造成具有比已知的激光二极管阵列更不严格的制造公差。

4. 发明授权

US5587786A Apparatus for measuring a beam width D.sub..sigma.x along a transverse direction of a laser beam and method thereof 失效
标题翻译：用于沿激光束的横向测量光束宽度D sigma x的装置及其方法
公开(公告)号：US5587786A
公开(公告)日：1996-12-24
申请号：US393572
申请日：1995-02-23
申请人： Yves Champagne , Claude Pare , Pierre-Andre Belanger
发明人： Yves Champagne , Claude Pare , Pierre-Andre Belanger
IPC分类号： G01J1/42 , G01J1/00
CPC分类号： G01J1/4257
摘要： The present invention relates to an apparatus and a method upon which the apparatus is based for direct optical measurement of first and second moments (variance) of two-dimensional continuous-wave optical beam irradiance distributions. The apparatus and method are based on an optical filter having a spatially-varying transmittance or reflectance profile described by a one-dimensional truncated parabolic function. The light power transmitted through or reflected by the optical filter is measured by a photodetector as the optical filter travels horizontally across the beam irradiance profile. The variance is obtained from the ratio of the peak signal given by the photodetector normalized to the signal corresponding to the total optical power of the unobstructed optical beam. The first moment in a fixed reference frame is given by the horizontal position of the region of peak transmittance/reflectance of the filter when the maximum signal is measured.
摘要翻译：本发明涉及一种装置和方法，在该装置和方法上，该装置基于用于直接光学测量二维连续波光束辐照度分布的第一和第二矩（方差）。该装置和方法基于具有通过一维截断抛物线函数描述的空间变化的透射率或反射率分布的滤光器。通过光学滤波器透射或反射的光功率由光电检测器测量，因为光学滤光器水平地穿过光束辐照度轮廓。从由光电检测器给出的峰值信号的比率获得的方差是对应于无阻碍光束的总光功率的信号进行归一化。当测量最大信号时，固定参考系中的第一时刻由滤波器的峰值透射率/反射率的区域的水平位置给出。

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