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.

公开(公告)号：US11261085B2

公开(公告)日：2022-03-01

申请号：US16084214

申请日：2018-05-02

Applicant: NANOTECH SECURITY CORP.

Inventor： Mohsen Keshavarz Akhlaghi ,  Clinton K. Landrock

IPC: B81C99/00 ,  B29C41/02 ,  B82B3/00 ,  B81C1/00 ,  H01L31/0224 ,  G02B5/18 ,  B82Y40/00 ,  B42D25/36 ,  B42D25/40

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.

公开(公告)号：US10386551B2

公开(公告)日：2019-08-20

申请号：US14889815

申请日：2014-05-09

Applicant: IDIT TECHNOLOGIES CORP.

Inventor： Clinton K. Landrock ,  Badr Omrane ,  Yindar Chuo

IPC: G02B5/18 ,  B42D25/405 ,  B42D25/30 ,  B42D25/328 ,  H01J37/317 ,  B82Y20/00

Abstract: A motion and animation display is disclosed, including multiple nanostructure arrays oriented at differing relative angles of rotation corresponding to multiple frames of an animation image, wherein the multiple nanostructure arrays are formed on a single substrate layer. An optical display device is also disclosed, including a substrate having a surface, a first frame of an animated image comprising a first optical sub-wavelength nanostructure array formed on or in the surface of the substrate, and a second frame of an animated image comprising a second optical sub-wavelength nanostructure array formed on or in the surface of the substrate, where the second nanostructure array is rotated relative to the first nanostructure array by a first relative angle of rotation. A method of manufacturing a motion and animation display comprising multiple nanostructure arrays oriented at differing relative angles of rotation is also disclosed.

公开(公告)号：US09323042B2

公开(公告)日：2016-04-26

申请号：US13642504

申请日：2011-04-21

Applicant: Charles Douglas MacPherson

Inventor： Charles Douglas MacPherson

IPC: G02B26/00 ,  B32B7/06 ,  B32B27/36 ,  G07D7/02 ,  B42D25/29 ,  B42D25/324

CPC classification number: G02B26/001 ,  B32B3/263 ,  B32B5/02 ,  B32B7/06 ,  B32B7/12 ,  B32B15/08 ,  B32B15/20 ,  B32B27/304 ,  B32B27/308 ,  B32B27/36 ,  B32B29/00 ,  B32B2262/10 ,  B32B2264/10 ,  B32B2270/00 ,  B32B2307/20 ,  B32B2307/40 ,  B32B2307/412 ,  B32B2307/416 ,  B32B2307/732 ,  B32B2554/00 ,  B42D25/29 ,  B42D25/324 ,  B42D25/373 ,  B42D2033/10 ,  B42D2033/12 ,  B42D2033/18 ,  B42D2033/32 ,  B42D2035/24 ,  B42D2035/26 ,  B42D2035/34 ,  G07D7/02

Abstract: Security documents often incorporate optically variable devices to prevent or hinder counterfeiters. Disclosed herein are layered optically variable devices such as colour-shift foils that employ a piezoelectric layer, and methods for their production and use. Such devices afford new techniques for a user of a security document to check quickly and easily whether the security document is a legitimate document or a counterfeit copy by placing an electrical potential difference across the security document.

Abstract translation: 安全文件通常包含光学可变装置，以防止或阻止造假者。 本文公开了层状光学可变器件，例如使用压电层的色移箔，以及用于其制造和使用的方法。 这样的设备为安全文档的用户提供新技术，以便通过在安全文档之间放置电势差异来快速且容易地检查安全文档是合法文档还是伪造副本。

公开(公告)号：US09170417B2

公开(公告)日：2015-10-27

申请号：US12401676

申请日：2009-03-11

Applicant: Charles Douglas MacPherson ,  Denis Gerard Vendette ,  Gilles Girouard ,  A Oliver Stone

Inventor： Charles Douglas MacPherson ,  Denis Gerard Vendette ,  Gilles Girouard ,  A Oliver Stone

IPC: G07D7/12 ,  G02B26/00 ,  B44F1/10 ,  D21H21/48 ,  G02B5/18 ,  G02B5/20 ,  G02B5/28 ,  B42D25/29 ,  B42D25/378 ,  G02B5/32 ,  B42D25/324 ,  B42D25/328 ,  B42D25/382 ,  B42D25/47 ,  B42D25/387

CPC classification number: B42D25/378 ,  B42D25/29 ,  B42D25/324 ,  B42D25/328 ,  B42D25/364 ,  B42D25/382 ,  B42D25/387 ,  B42D25/47 ,  B42D2033/18 ,  B42D2033/20 ,  B42D2033/26 ,  B42D2033/32 ,  B42D2035/20 ,  B42D2035/24 ,  B42D2035/26 ,  B42D2035/34 ,  B44F1/10 ,  D21H21/48 ,  G02B5/18 ,  G02B5/1861 ,  G02B5/201 ,  G02B5/285 ,  G02B5/32 ,  G02B26/001 ,  G07D7/003 ,  G07D7/1205

Abstract: A security device for authenticating bank notes, documents and other items, comprises a luminescent material for producing luminescent radiation of first and second wavelengths. The security device includes an optically variable structure for controlling emission of luminescent radiation of at least one of the first and second wavelengths from the security device, the security device being arranged to permit, from an area of the optically variable structure, emission of luminescence of the first and second wavelengths from the security device. The optically variable structure causes the relative emissivity of the security device for luminescent radiation of the first and second wavelengths to change with a change in emission angle, so that the security device produces an angle-dependent color shift in the emitted luminescent radiation. The optically variable structure may comprise an optical interference stack that controls transmission of luminescent radiation therethrough in response to the wavelength of luminescent radiation.

Abstract translation: 用于认证钞票，文件和其他物品的安全装置包括用于产生第一和第二波长的发光辐射的发光材料。 安全装置包括光学可变结构，用于控制来自安全装置的至少一个第一和第二波长的发光辐射，安全装置被布置成允许从光学可变结构的区域发射 来自安全装置的第一和第二波长。 光学可变结构使得第一和第二波长的发光辐射的安全装置的相对发射率随发射角度的变化而改变，使得安全装置在发射的发光辐射中产生与角度相关的色移。 光学可变结构可以包括光学干涉叠层，其响应于发光辐射的波长来控制通过其的发光辐射的透射。

公开(公告)号：US09738105B2

公开(公告)日：2017-08-22

申请号：US13642476

申请日：2011-04-21

Applicant: Charles Douglas MacPherson ,  Bruce Alfred Hardwick

Inventor： Charles Douglas MacPherson ,  Bruce Alfred Hardwick

IPC: B42D15/00 ,  B42D25/29 ,  B42D25/425 ,  B42D25/373 ,  G02B5/28

CPC classification number: B42D15/00 ,  B42D25/29 ,  B42D25/373 ,  B42D25/425 ,  B42D2033/10 ,  B42D2033/12 ,  B42D2033/18 ,  B42D2033/32 ,  B42D2035/24 ,  B42D2035/26 ,  B42D2035/36 ,  G02B5/28 ,  G02B5/286 ,  G02B5/287 ,  G02B5/288

Abstract: Security documents often incorporate optically variable devices to prevent or hinder counterfeiters. Disclosed herein are layered optically variable devices such as color-shift foils, and methods for their production and use. Such devices afford new techniques for a user of a security document to check quickly and easily whether the security document is a legitimate document or a counterfeit copy.

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.

公开(公告)号：US20250147209A1

公开(公告)日：2025-05-08

申请号：US18837826

申请日：2022-12-13

Applicant: NANOTECH SECURITY CORP

Inventor： Milad KHOSHNEGAR SHAHRESTANI

IPC: G02B5/18 ,  B42D25/328 ,  G02B27/42

Abstract: The present disclosure provides a diffractive display for displaying a diffracted image, an article, comprising the diffractive display, and methods of forming a display for displaying a diffracted image.

公开(公告)号：US11960107B2

公开(公告)日：2024-04-16

申请号：US16962174

申请日：2019-01-17

Applicant: NANOTECH SECURITY CORP.

Inventor： Mohsen Keshavarz Akhlaghi ,  Clint Landrock

IPC: G02B5/02 ,  B42D25/324 ,  B42D25/328 ,  B42D25/373 ,  B42D25/425 ,  G02B5/00 ,  G02B27/42

CPC classification number: G02B5/0231 ,  G02B5/008 ,  G02B5/0215 ,  G02B5/0268 ,  G02B27/4233 ,  B42D25/324 ,  B42D25/328 ,  B42D25/373 ,  B42D25/425

Abstract: 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.