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    • 1. 发明专利
    • Optically-based method and apparatus for performing sorting, coding and authentication using gain medium providing narrowband emission
    • 基于光学的方法和装置,使用增益介质提供窄带排放来执行分类,编码和验证
    • JP2010267285A
    • 2010-11-25
    • JP2010147281
    • 2010-06-29
    • Spectra Systems Corpスペクトラ システムズ コーポレーション
    • LAWANDY NABIL M
    • B42D15/10G07D7/12G06K19/06G06K19/10G07D7/06
    • G07D7/1205
    • PROBLEM TO BE SOLVED: To provide an amplified spontaneous emission (ASE) structure in homogeneously or inhomogeneously broadened medium allowing for highly improved and robust non-contact processing of substrates, such as those that comprise currency and other documents. SOLUTION: There are provided methods and apparatus for at least one of authenticating, sorting or counting documents, as well as to security structures 12 contained within documents and to documents 10 containing security structures. A security structure includes an optical gain medium and a structure having boundaries that impart an overall geometry to the structure that, in combination with at least one material property of the structure, supports an enhancement of electromagnetic radiation emitted from the gain medium for favoring, in one embodiment, the creation of at least one mode that enhances an emission of electromagnetic radiation within a narrow band. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:在均匀或不均匀的扩展介质中提供放大的自发发射(ASE)结构,允许对诸如包含货币和其它文件的基底进行高度改进和强大的非接触处理。 解决方案:提供了用于至少一个认证,分类或计数文件以及包含在文档内的安全结构12和包含安全结构的文档10的方法和装置。 安全结构包括光学增益介质和具有赋予结构总体几何形状的边界的结构,该结构与结构的至少一种材料性质相结合,支持从增益介质发射的电磁辐射的增强,以有利于 一个实施例,创建增强在窄带内的电磁辐射的发射的至少一种模式。 版权所有(C)2011,JPO&INPIT
    • 3. 发明申请
    • SOLID STATE DIAMOND RAMAN LASER
    • 固体状态金刚石拉曼激光
    • WO2005057740A3
    • 2005-08-25
    • PCT/US2004034887
    • 2004-10-22
    • SPECTRA SYSTEMS CORPLAWANDY NABIL MAFZAL ROBERT A
    • LAWANDY NABIL MAFZAL ROBERT A
    • H01S3/06H01S3/083H01S3/094H01S3/16H01S3/30
    • H01S3/30H01S3/0604H01S3/0627H01S3/083H01S3/094H01S3/094076H01S3/16H01S3/163
    • A solid state Raman laser (10) includes a laser pump (20) for producing a first radiation (22) at a high power and at a first wavelength along an optical path, a solid Raman active medium (30) in the optical path of the first radiation, the medium including single crystal diamond (32) having a first surface (34) and a second surface (36), where the first radiation at a high power produces stimulated Raman scattering in the medium and the medium generates a second radiation (38) at a second wavelength, a first optical element (40) in the optical path of the first radiation, wherein the first optical element allows the first wavelength to be transmitted and allows the second wavelength to be reflected, and a second optical element (50) in the optical path of the first radiation, wherein the second optical element allows the first wavelength to be transmitted and allows the second wavelength to be reflected.
    • 固体拉曼激光器(10)包括激光泵(20),用于沿着光路产生高功率和第一波长的第一辐射(22),固体拉曼激光介质(30)在光路中 第一辐射,包括具有第一表面(34)和第二表面(36)的单晶金刚石(32)的介质,其中高功率的第一辐射在介质中产生受激拉曼散射,并且介质产生第二辐射 (38),在第一辐射的光路中的第一光学元件(40),其中第一光学元件允许第一波长被透射并允许第二波长被反射,并且第二光学元件 (50)在第一辐射的光路中,其中第二光学元件允许第一波长被透射并允许第二波长被反射。
    • 5. 发明申请
    • USE OF EVAPORATIVELY ACTIVATED COLOR CHANGE FOR VERIFYING THE INTEGRITY OF AN OBJECT, SUCH AS A DATA STORAGE MEDIUM OR A GAMING TOKEN
    • 使用计算机激活的颜色变化来验证对象的完整性,如数据存储介质或游戏玩家
    • WO0187714A2
    • 2001-11-22
    • PCT/US0116049
    • 2001-05-18
    • SPECTRA SYSTEMS CORP
    • LAWANDY NABIL M
    • G07D7/14G07F7/10B65B43/26B42D15/00
    • G07F7/1008G06Q20/3558G07D7/14
    • A method and apparatus for verifying the integrity of an object (100) includes providing an authentic object (100) with a layer (25) that includes a volatile component and at least one other component, packaging the object so as to prevent a loss of the volatile component, opening the packaging causing the removal of at least some of the volatile component, and causing a color change with the remaining component for providing a visual indicator of the integrity of the object (100). A barrier layer may be provided to control the removal of the volatile component, and at least one chromophore may be provided to bias the first layer (25) so as to reduce an amount of time required before the color change is detectable. The object (100) may be gaming token, and the visual indicator may provide information related to the use of the gaming token (110).
    • 一种用于验证对象(100)的完整性的方法和装置包括向真实对象(100)提供包括易失性组件和至少一个其他组件的层(25),包装对象以防止 所述挥发性组件打开所述包装,导致去除所述挥发性组分中的至少一些,以及使所述剩余组分发生颜色变化,以提供所述对象(100)的完整性的视觉指示。 可以提供阻挡层以控制挥发性组分的去除,并且可以提供至少一个发色团以偏置第一层(25),以便减少在颜色变化可检测之前所需的时间量。 对象(100)可以是游戏令牌,并且可视指示符可以提供与使用游戏令牌(110)有关的信息。
    • 6. 发明申请
    • DEVICE AND METHOD FOR GASOCHROMIC POROSITY SENSING
    • 用于气体孔隙感应的装置和方法
    • WO2015066716A3
    • 2015-07-16
    • PCT/US2014063940
    • 2014-11-04
    • SPECTRA SYSTEMS CORP
    • LAWANDY NABIL M
    • G07D13/00
    • G01N15/088G01N15/082G01N2015/0846G01N2015/086G07D7/1205G07D7/14
    • A method and apparatus for testing the porosity of an object, such as a secure instrument having a substrate, visual data, and a security feature, is disclosed. The method and apparatus include a fluid source, a gasochromic material, an excitation source configured to excite the gasochromic material, and a detection device configured to sense changes in emissions from the gasochromic material after it is contacted with the fluid and excited by the excitation source. The object is configured to fit within a space between the fluid source and the gasochromic material such that when the fluid is emitted from the fluid source, at least a portion of the fluid is configured to flow through the object before contacting the gasochromic material.
    • 公开了一种用于测试物体(诸如具有衬底的安全仪器,视觉数据和安全特征)的孔隙度的方法和设备。 该方法和设备包括流体源,气致变色材料,被配置为激发气致变色材料的激发源,以及检测装置,被配置为感测气体变色材料与流体接触并且被激发源激发之后的排放变化 。 该物体被配置为配合在流体源和气致变色材料之间的空间内,使得当流体从流体源排放时,至少一部分流体被配置为在接触气致变色材料之前流过物体。