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    OPTICAL DIFFRACTIVE DISPLAY
    1.
    发明公开
    OPTICAL DIFFRACTIVE DISPLAY 审中-公开

    公开(公告)号：US20240121376A1

    公开(公告)日：2024-04-11

    申请号：US18257640

    申请日：2021-12-17

    Applicant: NANOTECH SECURITY CORP.

    Inventor： Milad KHOSHNEGAR SHAHRESTANI ,  Clinton K. LANDROCK

    IPC: H04N13/351 ,  B82Y20/00 ,  G02B5/18 ,  H04N13/302

    CPC classification number: H04N13/351 ,  B82Y20/00 ,  G02B5/1819 ,  G02B5/1861 ,  H04N13/302 ,  G02B2207/101

    Abstract: A diffractive display for displaying multiple images, each at a unique view zone, includes multiple micro-pixels, each having micro-facets, each micro-facet having a surface normal non-parallel to the surface normal of other micro-facets of the micro-pixel, each micro-facet having a diffractive nano-structure array. Each diffractive nano-structure array has a viewing angle at which incident light is diffracted from the diffractive nano-structure array. The diffracted light has a hue and an intensity based on properties of the diffractive nano-structure array, and, for each of the images, each of the micro-pixels includes at least one diffractive nano-structure array for which the viewing angle corresponds to the view zone the image, such that each of the images is composed of the diffracted light from at least one diffractive nano-structure array from each of the micro-pixels.

    OPTICAL DEVICES, AND THEIR USE FOR SECURITY AND AUTHENTICATION
    3.
    发明申请
    OPTICAL DEVICES, AND THEIR USE FOR SECURITY AND AUTHENTICATION 审中-公开
    光学设备及其安全和认证的使用

    公开(公告)号：US20160363704A1

    公开(公告)日：2016-12-15

    申请号：US15177904

    申请日：2016-06-09

    Applicant: Nanotech Security Corp.

    Inventor： Denis Gerard Vendette ,  Charles Douglas MacPherson

    IPC: G02B5/28

    CPC classification number: G02B5/285 ,  B42D25/387 ,  G02B5/283 ,  G02B5/286

    Abstract: 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.

    Abstract translation: 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。

    SECURITY DEVICE
    6.
    发明申请
    SECURITY DEVICE 审中-公开
    安全装置

    公开(公告)号：US20160333526A1

    公开(公告)日：2016-11-17

    申请号：US14708726

    申请日：2015-05-11

    Applicant: Nanotech Security Corp.

    Inventor： Charles Douglas MACPHERSON ,  Denis Gerard VENDETTE

    IPC: D21H21/48 ,  D21H21/30 ,  B42D25/36

    CPC classification number: D21H21/48 ,  B42D25/324 ,  B42D25/328 ,  B42D25/351 ,  B42D25/36 ,  B42D25/387

    Abstract: 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.

    Abstract translation: 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。

    METHODS FOR MICRO AND NANO FABRICATION BY SELECTIVE TEMPLATE REMOVAL
    8.
    发明申请
    METHODS FOR MICRO AND NANO FABRICATION BY SELECTIVE TEMPLATE REMOVAL 审中-公开

    公开(公告)号：US20190292047A1

    公开(公告)日：2019-09-26

    申请号：US16084214

    申请日：2018-05-03

    Applicant: NANOTECH SECURITY CORP.

    Inventor： Mohsen KESHAVARZ AKHLAGHI ,  Clint LANDROCK

    IPC: B81C99/00 ,  B82B3/00 ,  B29C41/02

    Abstract: 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.

    Security device
    9.
    发明授权
    Security device 有权

    公开(公告)号：US10036125B2

    公开(公告)日：2018-07-31

    申请号：US14708726

    申请日：2015-05-11

    Applicant: Nanotech Security Corp.

    Inventor： Charles Douglas MacPherson ,  Denis Gerard Vendette

    IPC: B42D25/387 ,  D21H21/48 ,  B42D25/36 ,  B42D25/324 ,  B42D25/351 ,  B42D25/328

    CPC classification number: D21H21/48 ,  B42D25/324 ,  B42D25/328 ,  B42D25/351 ,  B42D25/36 ,  B42D25/387

    Abstract: 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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