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21. 发明授权

US06728273B2 Ultrashort-pulse laser machining system employing a parametric amplifier 失效
标题翻译：超短脉冲激光加工系统采用参数放大器
公开(公告)号：US06728273B2
公开(公告)日：2004-04-27
申请号：US09918579
申请日：2001-07-31
申请人： Michael D. Perry
发明人： Michael D. Perry
IPC分类号： H01S398
CPC分类号： C06B21/0033 , B23K26/0624 , B23K26/12 , B23K26/127 , B23K26/18 , B23K26/382 , B23K2103/05 , B23K2103/50 , F42B33/008 , G02F2001/392 , H01S3/0057
摘要： A method and apparatus are provided for increasing the energy of chirped laser pulses to an output in the range 0.001 to over 10 millijoules at a repetition rate 0.010 to 100 kHz by using a two stage optical parametric amplifier utilizing a bulk nonlinear crystal wherein the pump and signal beam size can be independently adjusted in each stage.
摘要翻译：提供了一种方法和装置，用于通过使用体积非线性晶体的两级光参量放大器，以0.010至100kHz的重复频率将啁啾激光脉冲的能量增加到0.001至超过10毫焦耳范围内的输出，其中泵和信号光束大小可以在每个阶段独立调整。

22. 发明授权

US06717104B2 Programmable phase plate for tool modification in laser machining applications 失效
标题翻译：可编程相位板用于激光加工应用中的刀具修改
公开(公告)号：US06717104B2
公开(公告)日：2004-04-06
申请号：US10172458
申请日：2002-06-13
申请人： Charles A. Thompson, Jr. , Michael W. Kartz , James M. Brase , Deanna Pennington , Michael D. Perry
发明人： Charles A. Thompson, Jr. , Michael W. Kartz , James M. Brase , Deanna Pennington , Michael D. Perry
IPC分类号： B23K2606
CPC分类号： B23K26/032 , B23K26/066 , B23K26/705
摘要： A system for laser machining includes a laser source for propagating a laser beam toward a target location, and a spatial light modulator having individual controllable elements capable of modifying a phase profile of the laser beam to produce a corresponding irradiance pattern on the target location. The system also includes a controller operably connected to the spatial light modulator for controlling the individual controllable elements. By controlling the individual controllable elements, the phase profile of the laser beam may be modified into a desired phase profile so as to produce a corresponding desired irradiance pattern on the target location capable of performing a machining operation on the target location.
摘要翻译：用于激光加工的系统包括用于将激光束朝向目标位置传播的激光源，以及空间光调制器，其具有能够修改激光束的相位分布的各个可控元件，以在目标位置上产生对应的辐照度图案。该系统还包括可操作地连接到空间光调制器以控制各个可控元件的控制器。通过控制各个可控元件，激光束的相位轮廓可以被修改为期望的相位轮廓，以便在能够对目标位置执行加工操作的目标位置上产生相应的期望辐射图。

23. 发明授权

US06678351B1 Laser radiography forming bremsstrahlung radiation to image an object 失效
标题翻译：激光放射成像bre致辐射成像物体
公开(公告)号：US06678351B1
公开(公告)日：2004-01-13
申请号：US09564957
申请日：2000-05-04
申请人： Michael D. Perry , Joseph A. Sefcik
发明人： Michael D. Perry , Joseph A. Sefcik
IPC分类号： G21G400
CPC分类号： H05G2/00
摘要： A method of imaging an object by generating laser pulses with a short-pulse, high-power laser. When the laser pulse strikes a conductive target, bremsstrahlung radiation is generated such that hard ballistic high-energy electrons are formed to penetrate an object. A detector on the opposite side of the object detects these electrons. Since laser pulses are used to form the hard x-rays, multiple pulses can be used to image an object in motion, such as an exploding or compressing object, by using time gated detectors. Furthermore, the laser pulses can be directed down different tubes using mirrors and filters so that each laser pulse will image a different portion of the object.
摘要翻译：通过用短脉冲大功率激光产生激光脉冲来对物体进行成像的方法。当激光脉冲撞击导电靶时，产生bre致辐射，使得形成硬质弹性高能电子以穿透物体。物体的另一侧的探测器检测这些电子。由于使用激光脉冲来形成硬X射线，所以可以使用多个脉冲来通过使用时间选通检测器来对运动中的物体（例如爆炸或压缩物体）进行成像。此外，可以使用反射镜和滤光器将激光脉冲引导到不同的管，使得每个激光脉冲将对对象的不同部分进行成像。

24. 发明授权

US06664498B2 Method and apparatus for increasing the material removal rate in laser machining 有权
公开(公告)号：US06664498B2
公开(公告)日：2003-12-16
申请号：US10120731
申请日：2002-04-10
申请人： Andrew C. Forsman , Paul S. Banks , Michael D. Perry
发明人： Andrew C. Forsman , Paul S. Banks , Michael D. Perry
IPC分类号： B23K2600
CPC分类号： B23K26/0676 , B23K26/0613 , B23K26/0622 , B23K26/0624
摘要： Methods and apparatus for material modification using laser bursts including appropriately timed laser pulses to enhance material modification. In one implementation, a method for material modification comprises the steps of: providing bursts of laser pulses, wherein each burst comprises at least two laser pulses, wherein each laser pulse has a pulse duration within a range of between approximately 10 ps and 100 ns, wherein a time between each laser pulse of each burst is within a range of between approximately 5 ns and 5 &mgr;s; a time between successive bursts is greater than the time between each laser pulse comprising each burst; and directing the bursts upon a workpiece, wherein an intensity of a primary laser pulse of each burst exceeds a damage threshold of the workpiece.

25. 发明授权

US06515737B2 High-resolution imaging and target designation through clouds or smoke 失效
公开(公告)号：US06515737B2
公开(公告)日：2003-02-04
申请号：US09754884
申请日：2001-01-03
申请人： Michael D. Perry
发明人： Michael D. Perry
IPC分类号： G01C308
CPC分类号： F41G7/263 , G01S7/481 , G01S17/66
摘要： A method and system of combining gated intensifiers and advances in solid-state, short-pulse laser technology, compact systems capable of producing high resolution (i.e., approximately less than 20 centimeters) optical images through a scattering medium such as dense clouds, fog, smoke, etc. may be achieved from air or ground based platforms. Laser target designation through a scattering medium is also enabled by utilizing a short pulse illumination laser and a relatively minor change to the detectors on laser guided munitions.

26. 发明授权

US06414320B1 Composition analysis by scanning femtosecond laser ultraprobing (CASFLU). 有权
标题翻译：扫描飞秒激光超扫描（CASFLU）的成分分析。
公开(公告)号：US06414320B1
公开(公告)日：2002-07-02
申请号：US09563122
申请日：2000-05-02
申请人： Muriel Y. Ishikawa , Lowell L. Wood , E. Michael Campbell , Brent C. Stuart , Michael D. Perry
发明人： Muriel Y. Ishikawa , Lowell L. Wood , E. Michael Campbell , Brent C. Stuart , Michael D. Perry
IPC分类号： B23K2600
CPC分类号： G01N21/718 , B23K26/0624
摘要： The composition analysis by scanning femtosecond ultraprobing (CASFLU) technology scans a focused train of extremely short-duration, very intense laser pulses across a sample. The partially-ionized plasma ablated by each pulse is spectrometrically analyzed in real time, determining the ablated material's composition. The steering of the scanned beam thus is computer directed to either continue ablative material-removal at the same site or to successively remove nearby material for the same type of composition analysis. This invention has utility in high-speed chemical-elemental, molecular-fragment and isotopic analyses of the microstructure composition of complex objects, e.g., the oxygen isotopic compositions of large populations of single osteons in bone.
摘要翻译：通过扫描飞秒超扫描（CASFLU）技术的成分分析扫描了一个聚焦的训练样本中极短的持续时间，非常强的激光脉冲。通过每个脉冲烧蚀的部分电离的等离子体实时进行光谱分析，确定烧蚀材料的组成。因此，扫描光束的转向是计算机指导的，以便在相同的部位继续消融材料去除，或连续地去除附近的材料以进行相同类型的组成分析。本发明在复杂物体的微观结构组成的高速化学元素，分子片段和同位素分析中具有实用价值，例如骨中大量单个骨骼的氧同位素组成。

27. 发明授权

US6009166A Nitinol hookswitch actuator 失效
标题翻译：镍钛合金钩开关执行器
公开(公告)号：US6009166A
公开(公告)日：1999-12-28
申请号：US916582
申请日：1997-08-22
申请人： Fred I. Polito , Robert V. Davies , Gerald W. Skulley , Michael D. Perry , Kevin A. Sawyer , Brett A. Herscher , Robert J. Bernardi
发明人： Fred I. Polito , Robert V. Davies , Gerald W. Skulley , Michael D. Perry , Kevin A. Sawyer , Brett A. Herscher , Robert J. Bernardi
IPC分类号： H04M1/08 , H04M1/60 , H04M1/654 , H04M1/725 , H04M1/00
CPC分类号： H04M1/6033 , H04M1/08 , H04M1/725 , H04M1/72533 , H04M1/6545
摘要： A hookswitch actuator including an activating mechanism which maintains the hookswitch circuit of a telephone in an "on hook" state when the activating mechanism is in a first position, or in an "off hook" state when the activating mechanism is in the second position. The movement of the activating mechanism between the two positions is accomplished through the use of a shape memory alloy mechanism. The shape memory alloy mechanism is coupled to the activating mechanism in such a way that heating or cooling of the shape memory alloy mechanism moves the activating mechanism between its two positions. Control of the heating and cooling of the shape memory alloy mechanism is effectuated by controlling the amount of electric current passing through it.
摘要翻译：一种钩开关致动器，包括启动机构，当致动机构处于第一位置时，或者处于“脱钩”状态时，当启动机构处于第二位置时，该启动机构将电话的钩开关电路保持在处于“挂机”状态。激活机构在两个位置之间的移动通过使用形状记忆合金机构来实现。形状记忆合金机构以激活机构的形式记录合金机构的加热或冷却将激活机构移动到其两个位置之间。通过控制通过它的电流量来实现对形状记忆合金机构的加热和冷却的控制。

28. 发明授权

US5720894A Ultrashort pulse high repetition rate laser system for biological tissue processing 失效
标题翻译：超短脉冲高重复率激光系统用于材料加工
公开(公告)号：US5720894A
公开(公告)日：1998-02-24
申请号：US584522
申请日：1996-01-11
申请人： Joseph Neev , Luiz B. Da Silva , Dennis L. Matthews , Michael E. Glinsky , Brent C. Stuart , Michael D. Perry , Michael D. Feit , Alexander M. Rubenchik
发明人： Joseph Neev , Luiz B. Da Silva , Dennis L. Matthews , Michael E. Glinsky , Brent C. Stuart , Michael D. Perry , Michael D. Feit , Alexander M. Rubenchik
IPC分类号： A61B18/20 , A61B18/26 , A61C3/02 , A61N5/06 , B23K26/03 , B23K26/06 , B23K26/18 , B23K26/36 , B23K26/40 , C06B21/00 , B44C1/22
CPC分类号： B23K26/0665 , A61B18/20 , A61B18/26 , A61C1/0046 , B23K26/032 , B23K26/0624 , B23K26/0643 , B23K26/0648 , B23K26/18 , B23K26/40 , B23K26/402 , C06B21/0033 , A61B2018/00636 , B23K2203/05 , B23K2203/10 , B23K2203/30
摘要： A method and apparatus is disclosed for fast, efficient, precise and damage-free biological tissue removal using an ultrashort pulse duration laser system operating at high pulse repetition rates. The duration of each laser pulse is on the order of about 1 fs to less than 50 ps such that energy deposition is localized in a small depth and occurs before significant hydrodynamic motion and thermal conduction, leading to collateral damage, can take place. The depth of material removed per pulse is on the order of about 1 micrometer, and the minimal thermal and mechanical effects associated with this ablation method allows for high repetition rate operation, in the region 10 to over 1000 Hertz, which, in turn, achieves high material removal rates. The input laser energy per ablated volume of tissue is small, and the energy density required to ablate material decreases with decreasing pulse width. The ablation threshold and ablation rate are only weakly dependent on tissue type and condition, allowing for maximum flexibility of use in various biological tissue removal applications. The use of a chirped-pulse amplified Titanium-doped sapphire laser is disclosed as the source in one embodiment.
摘要翻译：公开了使用以高脉冲重复率操作的超短脉冲持续时间激光系统来快速，有效，精确和无损伤的生物组织去除的方法和装置。每个激光脉冲的持续时间约为1fs至小于50ps，使得能量沉积位于较小的深度并发生在显着的水动力运动和热传导之间，导致附带损伤。每个脉冲去除的材料的深度约为1微米，并且与该消融方法相关的最小的热和机械效应允许在10至超过1000赫兹的区域中的高重复率操作，这进而达到高材料去除率。每个消融体积的组织的输入激光能量很小，消融材料所需的能量密度随着脉冲宽度的减小而减小。消融阈值和消融率只是弱取决于组织类型和条件，允许在各种生物组织去除应用中使用的最大灵活性。在一个实施例中公开了使用啁啾脉冲放大钛掺杂蓝宝石激光器作为源。

29. 外观设计

USD319560S Snail barrier unit 失效
公开(公告)号：USD319560S
公开(公告)日：1991-09-03
申请号：US385480
申请日：1989-07-27
申请人： Michael D. Perry
设计人： Michael D. Perry

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