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公开(公告)号：US06908505B2
公开(公告)日：2005-06-21
申请号：US10677824
申请日：2003-10-01
CPC分类号： B41M5/28 , B07C3/18 , B41M5/00 , B41M5/20 , B41M5/30 , B41M5/36 , Y10S209/90 , Y10T428/24802
摘要： Thermochromic compositions that include combinations of at least one color former and at least one Lewis acid in a polymer mixture are disclosed. The thermochromic compositions reversibly change appearance from substantially transparent to substantially non-transparent above a lower critical solution temperature.
摘要翻译： 公开了在聚合物混合物中包含至少一种成色剂和至少一种路易斯酸的组合的热变色组合物。 热致变色组合物在较低的临界溶液温度下可逆地将外观从基本上透明到基本不透明。
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2.发明授权Contrast enhancing marking system for application of unobtrusive identification and other markings 失效对比增强标记系统，适用于不引人注目的识别和其他标记公开(公告)号：US06881915B2
公开(公告)日：2005-04-19
申请号：US10060767
申请日：2002-01-30
CPC分类号： B41M5/28 , B07C3/18 , B41M5/00 , B41M5/20 , B41M5/30 , B41M5/36 , Y10S209/90 , Y10T428/24802
摘要： A method and a system is disclosed for affixing invisible or unobtrusive markings to mail pieces (4), and subsequently collecting information from the mail pieces for sorting purposes. The system includes the affixation of an optically contrasting layer (1) to a mail piece, the layer changing optically upon the application of a stimulus to present a contrasting background for imaging encoded information (3) applied over the layer and related to the mail piece.
摘要翻译： 公开了一种方法和系统，用于将不可见或不引人注意的标记附加到邮件（4），并且随后从邮件收集信息用于排序目的。 该系统包括将光学对比层（1）固定到邮件上，该层在施加刺激时光学变化以呈现对比背景，用于对施加在该层上并与邮件相关的编码信息（3）成像 。
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3.发明授权Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant 失效用于使光学编码介质呈现不可读和防篡改的方法和装置公开(公告)号：US06531262B1
公开(公告)日：2003-03-11
申请号：US09690405
申请日：2000-10-17
IPC分类号： G11B370
CPC分类号： G11B7/26 , G11B7/005 , G11B7/252 , G11B20/00086 , G11B20/00608 , G11B20/00695 , G11B20/0084 , G11B23/281 , Y10S430/146
摘要： Methods and apparatus are provided for making an optically readable media unreadable and tamper-resistant. A method has steps of (a) providing the media with a readout surface layer that is non-flat (i.e., textured in some way, such as by embossing, scratching, depositing a non-planar layer or regions, such as droplets) and that inhibits optical readout of the media; (b) applying a coating layer to the non-flat surface layer to smooth the non-flat surface and to enable optical readout of the media; and, after an initiation of a readout period, (c) removing the coating layer so as to expose the non-flat readout surface layer, thereby inhibiting optical readout of the media. Preferably, the coating layer is substantially index matched to the readout surface layer. The step of removing includes at least one of evaporating or subliming a component material of the coating layer A method is also disclosed for discouraging tampering with a readout-limiting mechanism by (a) providing the media with at least one layer that embodies the readout-limiting mechanism; (b) providing a textured surface that forms part of a layer that underlies the at least one layer, where the textured surface inhibits optical readout of the media; and (c) applying a coating layer over the textured surface to smooth the textured surface and to enable optical readout of the media, wherein removal of the coating layer exposes the textured surface thereby inhibiting optical readout of the media.
摘要翻译： 提供了用于制造光可读介质不可读和防篡改的方法和装置。 一种方法具有以下步骤：（a）向介质提供非平坦的读出表面层（即，以某种方式，例如通过压花，刮擦，沉积非平面层或诸如液滴的区域）和 这抑制了介质的光学读出; （b）将涂层施加到非平坦表面层上以平滑非平坦表面并使光学读出介质; 并且在读出期间开始之后，（c）去除涂层以露出非平面读出表面层，从而抑制介质的光学读出。 优选地，涂层基本上与读出表面层相匹配。 还公开了去除步骤中的至少一种，其中包括使涂层的组分材料蒸发或升华的方法。方法还公开了通过（a）向介质提供体现读出限制机构的至少一层的阻止篡改读出限制机构的方法， 限制机制; （b）提供纹理表面，其形成位于所述至少一个层下面的层的一部分，其中织构化表面禁止介质的光学读出; 并且（c）在纹理化表面上涂覆涂层以平滑纹理化表面并且使得能够光学读出介质，其中去除涂层暴露纹理化表面，从而抑制介质的光学读出。
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4.发明授权公开(公告)号：US06338933B1
公开(公告)日：2002-01-15
申请号：US09338959
申请日：1999-06-24
IPC分类号： G11B370
CPC分类号： G11B20/00086 , G11B7/252 , G11B7/2534 , G11B7/2542 , G11B7/2575 , G11B7/2585 , G11B20/00797 , G11B23/282 , G11B23/505 , Y10S430/146
摘要： Methods and apparatus are provided for making an optically readable media unreadable. The method includes steps of (a) providing the media with an optically activated mechanism that degrades the reflectivity of a surface wherein information is encoded; (b) exposing the media to optical radiation for reading out the information; and, during the step of exposing, (c) initiating the operation of the optically activated mechanism. In this embodiment the step of initiating includes steps of (d) generating singlet oxygen in a layer disposed on the media; and (e) reacting the singlet oxygen with a metal-containing layer for oxidizing the surface of the metal-containing layer, thereby degrading the reflectivity of the surface. In a further aspect the optically activated mechanism causes a defocusing of a readout beam, thereby degrading reflection of the readout beam from a surface wherein information is encoded. In another embodiment the method deforms a surface of the layer resulting in readout beam aberration or in an inability to correctly stay on track. In another embodiment a portion of the surface is removed to the atmosphere, such as by evaporation of sublimation. In this embodiment a layer of the media is comprised of a volatile component and at least one other component. Removing at least some of volatile component by evaporation or sublimation causes an increase in at least one of photoabsorption or scattering or surface roughness with the remaining component, thereby rendering at least a portion of encoded information of the media unreadable, or affecting the tracking operation.
摘要翻译： 提供了用于使光可读介质不可读的方法和装置。 该方法包括以下步骤：（a）向介质提供光学激活机制，其降低其中信息被编码的表面的反射率; （b）将介质暴露于光学辐射以读出信息; 并且在曝光步骤期间，（c）启动光学激活机构的操作。 在该实施方案中，起始步骤包括（d）在设置在介质上的层中产生单线态氧的步骤; 和（e）使单线态氧与含金属层反应，以使含金属层的表面氧化，从而降低表面的反射率。 在另一方面，光学激活的机构导致读出光束的散焦，从而降低读出光束从其中信息被编码的表面的反射。 在另一个实施例中，该方法使层的表面变形，导致读出光束像差或不能正确地保持轨道。 在另一个实施例中，表面的一部分被移除到大气中，例如通过蒸发升华。 在该实施例中，介质层由挥发性组分和至少一种其它组分组成。 通过蒸发或升华去除至少一些挥发性组分导致与剩余组分的光吸收或散射或表面粗糙度中的至少一种的增加，从而使得介质的编码信息的至少一部分不可读或影响跟踪操作。
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公开(公告)号：US07220535B2
公开(公告)日：2007-05-22
申请号：US10165273
申请日：2002-06-06
申请人： Nabil M. Lawandy , Jeffrey L. Conroy , Robert S. Afzal , Allison Berube , Charles M. Zepp , Andrei Smuk
发明人： Nabil M. Lawandy , Jeffrey L. Conroy , Robert S. Afzal , Allison Berube , Charles M. Zepp , Andrei Smuk
CPC分类号： B42D25/333 , B41M3/003 , B41M3/10 , B41M3/14 , B41M3/144 , B42D25/00 , B42D25/29 , B42D25/382 , B42D25/387 , B42D2035/02 , G06T1/0021 , G07F7/086 , G11B7/00736 , G11B7/244 , G11B7/246 , G11B7/247 , G11B7/249 , G11B7/252 , G11B7/254 , G11B20/00086 , G11B20/00173 , G11B20/0021 , G11B20/0026 , G11B20/00289 , G11B20/00557 , G11B20/00608 , G11B20/00876 , G11B20/00884 , G11B20/00905 , G11B23/0042 , G11B23/281 , G11B23/284 , G11B23/30 , G11B23/38 , G11B23/40 , H04N1/00127 , H04N2201/327
摘要： Disclosed herein are methods and apparatus for providing markings upon objects, including the read side of an optical information media, where the markings do not substantially interfere with object, including the use of the optical information media. This invention discloses use of a coating, marking schemes, printing of markings with UV light, as well as methods and apparatus for reading and deciphering said marking. Included is an authentication scheme, where the marking may be used as a lock to limit access to information contained in an optical information media.
摘要翻译： 本文公开了用于在物体上提供标记的方法和装置，包括光学信息介质的读取侧，其中标记基本上不干扰对象，包括使用光学信息介质。 本发明公开了使用涂层，标记方案，用UV光打印标记，以及读取和解密所述标记的方法和装置。 包括认证方案，其中标记可以用作锁定以限制对包含在光学信息媒体中的信息的访问。
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公开(公告)号：US5908608A
公开(公告)日：1999-06-01
申请号：US910160
申请日：1997-08-12
CPC分类号： B82Y30/00 , C01B19/007 , C01P2004/64 , Y10S977/813
摘要： An aqueous system for the production of metal chalcogenide nanocrystalline salts such as zinc selenide, from a hydrolyzable chalcogen carbonyl compound, such as selenourea, by simple hydrolysis thereof under alkaline conditions in the presence of water soluble metal hydroxide, such as zinc hydroxide in the form of the zincate ion, i.e., Zn(OH).sub.4.sup.-2. Selenourea contains selenium in the correct oxidation state, is inexpensive, commercially-available and readily hydrolyzable under aqueous basic conditions in the presence of the zincate ion to form zinc selenide. The zinc selenide is insoluble in the alkaline aqueous vehicle and precipitates over time in the form of nanocrystallites or quantum dots of the zinc selenide.
摘要翻译： 通过在碱性条件下在水溶性金属氢氧化物如氢氧化锌的存在下简单水解，从而生成金属硫族化物纳米晶体盐如硒化锌的水系，由水解性硫族化合物羰基化合物如硒脲， 的锌离子，即Zn（OH）4-2。 硒脲含有正确氧化态的硒，在碱性条件下，在锌酸根离子存在下，便宜，商业可用且易水解，形成硒化锌。 硒化锌不溶于碱性水性载体，随着时间的推移，以硒化锌的纳米晶体或量子点的形式沉淀。
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7.发明授权Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant 失效用于使光学编码介质呈现不可读和防篡改的方法和装置公开(公告)号：US06780564B2
公开(公告)日：2004-08-24
申请号：US10209376
申请日：2002-07-30
IPC分类号： G11B724
CPC分类号： G11B7/26 , G11B7/005 , G11B7/252 , G11B20/00086 , G11B20/00608 , G11B20/00695 , G11B20/0084 , G11B23/281 , Y10S430/146
摘要： “Methods and apparatus are provided for making an optically readable media unreadable and tamper-resistant. A method has steps of (a)providing the media with a readout surface layer that is non-flat (i.e., texture in some way, such as by embossing, scratching, depositing a non-flat layer or regions, such as droplets) and that inhibits optical readout of the media; (b) applying a coating layer to the non-flat surface layer to smooth the non-flat surface and to enable optical readout of the media; and, after an initiation of a readout period, (c) removing the coating layer so as to expose the non-flat readout surface layer, thereby inhibiting optical readout of the media. Preferably, the coating layer is substantially index matched to the readout surface layer. The step of removing includes at least one of evaporating or subliming a component material of the coating layer A method is also disclosed for discouraging tampering with a readout-limiting mechanism by (a) providing the media with at least one layer that embodies the readout-limiting mechanism; (b) providing a textured surface that forms part of a layer that underlies the at least one layer, where the textured surface inhibits optical readout of the media; and (c) applying a coating layer over the textured surface to smooth the textured surface and to enable optical readout of the media, wherein removal of the coating layer exposes the textured surface thereby inhibiting optical readout of the media.”
摘要翻译： “方法和装置被提供用于制造光学可读介质不可读和防篡改的方法具有以下步骤：（a）向介质提供非平坦的读出表面层（即，以某种方式，例如由 压花，刮擦，沉积非平坦层或诸如液滴的区域），并且阻止介质的光学读出;（b）将涂层施加到非平坦表面层上以平滑非平坦表面并且使能 介质的光学读出;以及在读出周期开始之后，（c）去除涂层以暴露非平面读出表面层，从而抑制介质的光学读出，优选地，涂层基本上 除去步骤包括蒸发或升华涂层的成分材料中的至少一种。还公开了一种方法，用于通过（a）提供介质wi来抑制篡改读出限制机构 至少一层体现读出限制机构; （b）提供纹理表面，其形成位于所述至少一个层下面的层的一部分，其中织构化表面禁止介质的光学读出; 并且（c）在纹理化表面上涂覆涂层以平滑纹理化表面并且使得能够光学读出介质，其中去除涂层暴露纹理表面，从而抑制介质的光学读出。
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8.发明授权公开(公告)号：US06709802B2
公开(公告)日：2004-03-23
申请号：US09996058
申请日：2001-11-28
IPC分类号： G11B724
CPC分类号： G11B20/00086 , G11B7/252 , G11B7/2534 , G11B7/2542 , G11B7/2575 , G11B7/2585 , G11B20/00797 , G11B23/282 , G11B23/505 , Y10S430/146
摘要： Methods and apparatus are provided for making an optically readable media unreadable. The method includes steps of (a) providing the media with an optically activated mechanism that degrades the reflectivity of a surface wherein information is encoded; (b) exposing the media to optical radiation for reading out the information; and, during the step of exposing, (c) initiating the operation of the optically activated mechanism. In this embodiment the step of initiating includes steps of (d) generating singlet oxygen in a layer disposed on the media; and (e) reacting the singlet oxygen with a metal-containing layer for oxidizing the surface of the metal-containing layer, thereby degrading the reflectivity of the surface. In a further aspect the optically activated mechanism causes a defocusing of a readout beam, thereby degrading reflection of the readout beam from a surface wherein information is encoded. In another embodiment the method deforms a surface of the layer resulting in readout beam aberration or in an inability to correctly stay on track. In another embodiment a portion of the surface is removed to the atmosphere, such as by evaporation of sublimation. In this embodiment a layer of the media is comprised of a volatile component and at least one other component. Removing at least some of volatile component by evaporation or sublimation causes an increase in at least one of photoabsorption or scattering or surface roughness with the remaining component, thereby rendering at least a portion of encoded information of the media unreadable, or affecting the tracking operation.
摘要翻译： 提供了用于使光可读介质不可读的方法和装置。 该方法包括以下步骤：（a）向介质提供光学激活机制，其降低其中信息被编码的表面的反射率; （b）将介质暴露于光学辐射以读出信息; 并且在曝光步骤期间，（c）启动光学激活机构的操作。 在该实施方案中，起始步骤包括（d）在设置在介质上的层中产生单线态氧的步骤; 和（e）使单线态氧与含金属层反应，以使含金属层的表面氧化，从而降低表面的反射率。 在另一方面，光学激活的机构导致读出光束的散焦，从而降低读出光束从其中信息被编码的表面的反射。 在另一个实施例中，该方法使层的表面变形，导致读出光束像差或不能正确地保持轨道。 在另一个实施例中，表面的一部分被移除到大气中，例如通过蒸发升华。 在该实施例中，介质层由挥发性组分和至少一种其它组分组成。 通过蒸发或升华去除至少一些挥发性组分导致与剩余组分的光吸收或散射或表面粗糙度中的至少一种的增加，从而使得介质的编码信息的至少一部分不可读或影响跟踪操作。
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公开(公告)号：US09839947B2
公开(公告)日：2017-12-12
申请号：US14968142
申请日：2015-12-14
申请人： Nabil M. Lawandy
发明人： Nabil M. Lawandy
IPC分类号： B08B7/00 , B01J21/06 , B42D25/29 , B01J35/00 , D21H21/36 , B42D25/387 , D21H21/14 , G06Q10/08 , D21H21/40 , B82Y30/00
CPC分类号： B08B7/0057 , B01J21/063 , B01J35/0013 , B01J35/004 , B42D25/29 , B42D25/387 , B42D2033/14 , B82Y30/00 , D21H21/14 , D21H21/36 , D21H21/40 , G06Q10/0875 , Y10S977/773 , Y10S977/811
摘要： Self-cleaning banknotes are provided using coatings, inks and additives which are photo-active and catalytic to reactions which are effective in breaking up organic contaminants or dirt to allow for the self-cleaning of banknotes by ambient light exposure as well as the cleaning of processed banknotes using equipment with more intense optical excitation, thus increasing their usable life. The invention is usable with all substrates and particularly polymeric substrates such as biaxially-oriented polypropylene (BOPP). The invention further discloses a system which allows a certain class of fitness parameters to cause these banknotes to be redirected to a cleaning module, be revaluated, and then either returned to circulation or rejected and/or destroyed. In addition, inks which are photo-catalytic can be used for extending the life of the banknotes in printed regions.
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公开(公告)号：US20140116474A1
公开(公告)日：2014-05-01
申请号：US14021603
申请日：2013-09-09
申请人： Nabil M. Lawandy
发明人： Nabil M. Lawandy
IPC分类号： B08B3/04
CPC分类号： B08B7/0021 , A61L2/18 , A61L2/20 , A61L2202/17 , A61L2202/20 , B01D11/0203 , G07D7/181 , G07D11/0084
摘要： A method and system for cleaning a secure instrument, such as a banknote, including a substrate, visual data and a security feature, including exposing the secure instrument to a supercritical fluid at a temperature and a pressure and for a duration sufficient to clean the substrate and not compromise the security feature and the visual data, wherein to clean the substrate includes to remove one or more substances from the substrate into the supercritical fluid. The substances removed from the substrate may include contaminants, dirt, sebum and pathogens.
摘要翻译： 一种用于清洁诸如纸币的安全仪器（包括基底，视觉数据和安全特征）的方法和系统，包括将温度和压力下的固定仪器暴露于超临界流体，持续时间足以清洁基底 并且不损害安全特征和视觉数据，其中清洁衬底包括将一种或多种物质从衬底移除到超临界流体中。 从基材中除去的物质可能包括污染物，污垢，皮脂和病原体。
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