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公开(公告)号：US20160333526A1
公开(公告)日：2016-11-17
申请号：US14708726
申请日：2015-05-11
CPC分类号： D21H21/48 , B42D25/324 , B42D25/328 , B42D25/351 , B42D25/36 , B42D25/387
摘要： A security device with multiple layers. A substrate provides the backing to a first luminescent layer. An optically variable structure is positioned between the first luminescent layer and a second luminescent layer. Both the first and second luminescent layers emit luminescent radiation when stimulated. When the first layer is stimulated, the optically variable structure filters the emitted luminescent radiation such that the emitted luminescent radiation only escapes the optically variable structure at a predetermined range of emission angles. A user, when viewing the security device from the predetermined range of angles as both layers are stimulated, can see a completed image of a predetermined indicia. When the security device is viewed at angles other than the predetermined range of angles as both layers are stimulated, a user will only see an incomplete image of the predetermined indicia.
摘要翻译： 具有多层的安全设备。 衬底将背衬提供给第一发光层。 光学可变结构位于第一发光层和第二发光层之间。 当被刺激时，第一和第二发光层都发射发光辐射。 当第一层被刺激时，光学可变结构对所发射的发光辐射进行滤光，使得所发射的发光辐射仅在预定的发射角度范围内逸出光学可变结构。 当两个层被刺激时，用户从预定的角度范围观察安全设备时，可以看到预定标记的完整图像。 当两个层被刺激时，以预定角度范围的角度观看安全装置时，用户将仅看到预定标记的不完整图像。
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公开(公告)号：US11261085B2
公开(公告)日：2022-03-01
申请号：US16084214
申请日：2018-05-02
IPC分类号： B81C99/00 , B29C41/02 , B82B3/00 , B81C1/00 , H01L31/0224 , G02B5/18 , B82Y40/00 , B42D25/36 , B42D25/40
摘要： A method to remove selected parts of a thin-film material otherwise uniformly deposited over a template is disclosed. The methods rely on a suitable potting material to encapsulate and snatch the deposited material on apexes of the template. The process may yield one and/or two devices during a single process step: (i) thin-film material(s) with micro- and/or nano-perforations defined by the shape of template apexes, and (ii) micro- and/or nano-particles shaped and positioned in the potting material by the design of the template apexes. The devices made from this method may find applications in fabrication of mechanical, chemical, electrical and optical devices.
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公开(公告)号：US20160363704A1
公开(公告)日：2016-12-15
申请号：US15177904
申请日：2016-06-09
IPC分类号： G02B5/28
CPC分类号： G02B5/285 , B42D25/387 , G02B5/283 , G02B5/286
摘要： Disclosed herein are optical devices, suitable for use as authentication devices for security items and documents including banknotes. The devices are generally static and yet in some embodiments have perceived dynamic optical properties due to their apparent capacity to cause output luminescent radiation to “flash” as the devices are progressively tilted relative to a user or detector of the emitted luminescent radiation. Also disclosed are items and documents comprising such devices, methods for manufacture and use of the devices, and authentication devices suitable to check whether the disclosed authentication device are legitimate or counterfeit.
摘要翻译： 本文公开了适用于包括纸币的安全物品和文件的认证装置的光学装置。 器件通常是静态的，但是在一些实施例中，由于其显示的能力使得输出发光辐射“闪烁”，因为器件相对于所发射的发光辐射的用户或检测器逐渐倾斜，因此具有感知的动态光学特性。 还公开了包括这样的设备的项目和文档，用于制造和使用设备的方法，以及适合于检查所公开的认证设备是合法的还是假冒的认证设备。
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公开(公告)号：US20200341174A1
公开(公告)日：2020-10-29
申请号：US16962174
申请日：2019-01-17
摘要： Described are optical elements or displays using micro-structures and nano-structures formed conformally thereon that operate to generate optical effects. Such elements and displays may be useful for applications such as displays, and anti-counterfeiting.
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公开(公告)号：US20190292047A1
公开(公告)日：2019-09-26
申请号：US16084214
申请日：2018-05-03
摘要： A method to remove selected parts of a thin-film material otherwise uniformly deposited over a template is disclosed. The methods rely on a suitable potting material to encapsulate and snatch the deposited material on apexes of the template. The process may yield one and/or two devices during a single process step: (i) thin-film material(s) with micro- and/or nano-perforations defined by the shape of template apexes, and (ii) micro- and/or nano-particles shaped and positioned in the potting material by the design of the template apexes. The devices made from this method may find applications in fabrication of mechanical, chemical, electrical and optical devices.
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公开(公告)号：US10036125B2
公开(公告)日：2018-07-31
申请号：US14708726
申请日：2015-05-11
IPC分类号： B42D25/387 , D21H21/48 , B42D25/36 , B42D25/324 , B42D25/351 , B42D25/328
CPC分类号： D21H21/48 , B42D25/324 , B42D25/328 , B42D25/351 , B42D25/36 , B42D25/387
摘要： A security device with multiple layers. A substrate provides the backing to a first luminescent layer. An optically variable structure is positioned between the first luminescent layer and a second luminescent layer. Both the first and second luminescent layers emit luminescent radiation when stimulated. When the first layer is stimulated, the optically variable structure filters the emitted luminescent radiation such that the emitted luminescent radiation only escapes the optically variable structure at a predetermined range of emission angles. A user, when viewing the security device from the predetermined range of angles as both layers are stimulated, can see a completed image of a predetermined indicia. When the security device is viewed at angles other than the predetermined range of angles as both layers are stimulated, a user will only see an incomplete image of the predetermined indicia.
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