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公开(公告)号：US10471757B2
公开(公告)日：2019-11-12
申请号：US15522349
申请日：2015-11-10
Applicant: TOPPAN PRINTING CO., LTD.
Inventor： Kazuhiro Yashiki , Akira Nagano , Keitaro Sugihara , Tomoko Tashiro
IPC: B42D25/30 , B42D25/324 , G07D7/12 , G02B5/18 , G02B27/22 , B42D25/23 , B42D25/24 , B42D25/29 , B42D25/328 , B42D25/342 , B42D25/36 , G07D7/00 , G07D7/207
Abstract: There is provided a versatile optical element applicable both to an electrode layer required in a bank bill field and to an optical element required in an ID field. In an optical element (1) according to one embodiment of the present invention, a first layer (2) is arranged on a second layer (3) having a relief structure on a surface thereof, and a first region (4) and a second region (5) are provided. Electromagnetic waves incident at a preset specific angle from a side of the first layer (2) are totally reflected due to at least one of the relief structure in the first region (4) and a ratio of a refractive index of the second layer (3) with respect to a refractive index of the first layer (2), the electromagnetic waves incident at the specific angle from the side of the first layer (2) are not totally reflected but transmitted or refracted due to at least one of the relief structure in the second region (5) and the ratio of the refractive index of the second layer (3) with respect to the refractive index of the first layer (2), and only in case of observation performed from the specific angle on the first layer (2) side, the second region (5) has higher transparency than the first region (4), and a preset image is expressed by a transparency contrast therebetween.
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公开(公告)号：US11294108B2
公开(公告)日：2022-04-05
申请号：US15867377
申请日：2018-01-10
Applicant: TOPPAN PRINTING CO., LTD.
Inventor： Hiroyuki Endo , Akira Nagano
IPC: G02B5/18 , G09F19/14 , G02B5/02 , B42D25/324 , B42D25/328
Abstract: Each protrusion surface has a shape of a strip extending in an extension direction perpendicular to the arrangement direction. Each protrusion surface tapers toward a top section in a thickness direction of an uneven structure. Each depression surface has a shape of a strip extending in the extension direction. Each depression surface tapers toward a bottom section in the thickness direction of the uneven structure. The protrusion surfaces and the depression surfaces are arranged at a period that limits reflection of light that is incident on the uneven surface in a front-view direction of the uneven surface and diffracts the light incident on the uneven surface to emit diffracted light in an oblique view direction of the uneven surface. The uneven structure has a property of absorbing light incident on the uneven structure.
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公开(公告)号：US10350838B2
公开(公告)日：2019-07-16
申请号：US14595802
申请日：2015-01-13
Applicant: TOPPAN PRINTING CO., LTD.
Inventor： Toshiki Toda , Akira Nagano , Shingo Maruyama
IPC: B29C70/54 , B42D25/00 , B42D25/324 , B42D25/328 , G02B5/18
Abstract: A higher forgery prevention effect is realized. A display includes a first interface section provided with a relief-type diffraction grating constituted by a plurality of grooves, and a second interface section provided with a plurality of recesses or projections arranged two-dimensionally at a center-to-center distance smaller than the minimum center-to-center distance of the plural grooves, and each having a forward tapered shape.
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公开(公告)号：US10330834B2
公开(公告)日：2019-06-25
申请号：US14832511
申请日：2015-08-21
Applicant: Toppan Printing Co., Ltd.
Inventor： Akira Nagano
Abstract: The present invention provides a display exhibiting high anti-counterfeiting effects and special visual effects. The display of the present invention includes a relief structure-forming layer having a plurality of relief structure-forming areas that are provided on one principal surface side of a light transmissive base, a light reflection layer covering at least a part of the relief structure-forming layer, and a light scattering layer provided on a light reflection layer side of the relief structure-forming layer. The plurality of relief structure-forming areas have a plurality of convexities or a plurality of concavities having a first surface substantially parallel to the principal surface and a second surface substantially parallel to the first surface. In each of the plurality of relief structure-forming areas, a difference in height between the first and second surfaces is substantially constant, and at least one of a difference in height between the first and second surfaces and a height of a virtual plane configured by the first surface is different from the difference in height or a height of the virtual plane of other relief structure-forming areas. The plurality of relief structure-forming areas are arranged in accord with a color image to be displayed.
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公开(公告)号：US10821764B2
公开(公告)日：2020-11-03
申请号：US15641561
申请日：2017-07-05
Applicant: TOPPAN PRINTING CO., LTD.
Inventor： Akira Nagano
IPC: B42D25/328 , G09F9/302 , G02B1/11 , B42D25/21 , B42D25/373 , B42D25/324 , G09F19/12 , G02B5/18 , G02B1/118
Abstract: A display body includes lattice lines that are arranged along a plane of incidence on which light is incident. The lattice lines have properties for forming a bright image with diffracted light of the incident light in an oblique view in which the plane of incidence is viewed obliquely, and absorbing some of the incident light. The surface of each of the lattice lines includes dispersed fine step parts that are repetitive in the direction in which the lattice lines extend. The steps have an antireflection function and form a dark image in a front view directly facing the plane of incidence.
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Patent Agency Ranking
公开(公告)号：US10421309B2
公开(公告)日：2019-09-24
申请号：US15796606
申请日：2017-10-27
Applicant: TOPPAN PRINTING CO., LTD.
Inventor： Akira Nagano
IPC: B42D25/324 , B42D25/328 , G02B5/18 , G09F19/12 , G02B5/02 , B44F1/02 , B44F1/08 , B42D25/41 , B42D25/45 , B42D25/455
Abstract: The distance between the first reflection surfaces and the third reflection surface in the thickness direction of a substrate is a distance that is able the obverse surface of the reflection layer to emit light of a first color by interference between light reflected from the first reflection surfaces and light reflected from the third reflection surface. The distance between the second reflection surfaces and the third reflection surface in the thickness direction of the substrate is a distance that is able the obverse surface to emit light of a second color by interference between light reflected from the second reflection surfaces and light reflected from the third reflection surface. The obverse surface emits light of a third color that includes the light of the first color and the light of the second color.
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公开(公告)号：US09931883B2
公开(公告)日：2018-04-03
申请号：US15385273
申请日：2016-12-20
Applicant: TOPPAN PRINTING CO., LTD.
Inventor： Satoshi Gocho , Takayoshi Hayashi , Yasushi Kishimoto , Toshiki Toda , Akira Nagano
IPC: B42D25/328 , B42D25/324 , B42D25/21 , B42D25/24 , B42D25/42 , B42D25/47 , G02B5/18 , G03H1/00 , G03H1/02 , G03H1/04
CPC classification number: B42D25/328 , B42D25/00 , B42D25/21 , B42D25/24 , B42D25/324 , B42D25/42 , B42D25/47 , B42D2033/14 , B42D2035/06 , B42D2035/44 , B42D2035/50 , G02B5/0236 , G02B5/0257 , G02B5/0284 , G02B5/1842 , G02B5/1861 , G02B5/32 , G03H1/0011 , G03H1/0236 , G03H1/0244 , G03H2001/0497 , G03H2210/54 , G03H2250/36 , G03H2250/40
Abstract: An image display according to an embodiment includes a first image-displaying portion that displays first information about a certain object as a first image of object color, and a second image-displaying portion that displays second information about the object as a second image of structural color provided by a relief structure, the relief structure including at least one structure selected from the group consisting of diffraction grating, hologram, and light-scattering structure having an anisotropic light-scattering property. According to an example, the object is a person, and the first image includes a facial image of the person. A labeled article according to another embodiment includes the image display, and a substrate supporting the image display.
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公开(公告)号：US20160121641A1
公开(公告)日：2016-05-05
申请号：US14995824
申请日：2016-01-14
Applicant: TOPPAN PRINTING CO., LTD.
Inventor： Toshiki Toda , Akira Nagano , Shingo Maruyama , Seiko Matsuno
IPC: B42D25/328 , B42D25/29
CPC classification number: G02B5/1819 , B41M3/148 , B42D25/29 , B42D25/328 , B42D2033/20 , B42D2035/20 , G02B5/1814 , G02B5/1823 , G02B27/4272 , G09F3/02 , G09F3/0376 , Y10T428/24521
Abstract: A display includes a substrate with a light-transmitting property, a relief structure-forming layer disposed on at least one surface of the substrate and including a relief-structured region on a surface thereof opposite to its surface in contact with the substrate, a light-reflecting layer disposed on the surface of the relief structure-forming layer including the relief-structured region, and a printed layer formed on a surface of the substrate opposite to the surface on which the relief structure-forming layer is disposed, or between the relief structure-forming layer and the light-reflecting layer, or on a side of the light-reflecting layer opposite to its surface in contact with the relief structure-forming layer. The relief-structured region is constituted by recessed or protruding portions arranged two-dimensionally, has low reflectivity and low diffusibility under a normal illumination condition, and exhibits a diffracted light-emitting property under a specific condition.
Abstract translation: 显示器包括具有透光性的基板，设置在基板的至少一个表面上的浮雕结构形成层，并且在与其与基板接触的表面相对的表面上包括凸起结构区域，光 反射层，其设置在包括浮雕结构区域的浮雕结构形成层的表面上，以及形成在与设置有浮雕结构体形成层的表面相对的基板的表面上的印刷层，或者在 浮雕结构形成层和光反射层，或者在与反射层的与浮雕结构形成层接触的表面相对的一侧上。 浮雕结构区域由二维布置的凹陷或突出部分构成，在正常照明条件下具有低反射率和低扩散性，并且在特定条件下呈现衍射发光特性。
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公开(公告)号：US12111483B2
公开(公告)日：2024-10-08
申请号：US16939869
申请日：2020-07-27
Applicant: TOPPAN PRINTING CO., LTD.
Inventor： Yuko Masunaga , Akira Nagano , Yasumasa Kamata , Hideaki Honma
CPC classification number: G02B30/36 , G02B30/34 , G03H1/0244 , G03H1/2202 , G03H1/265 , G03H1/30 , G09F9/302 , G03H2001/2242
Abstract: A display including a plurality of pixels each including a plurality of first subpixels and a plurality of second subpixels. In pixel, when illumination light is applied to the first subpixels from a normal direction, no diffracted light emerges from the plurality of first subpixels, or first diffracted light emerges from the plurality of first subpixels in a first angular range. When illumination light is applied to the second subpixels from the normal direction, no diffracted light emerges from the plurality of second subpixels, or second diffracted light having a wavelength equal to that of the first diffracted light emerges from the plurality of second subpixels in a second angular range wider than the first angular range, at an intensity lower than that of the first diffracted light; with the pixels configured to display a continuously changing image using the first diffracted light and the second diffracted light.
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公开(公告)号：US10322602B2
公开(公告)日：2019-06-18
申请号：US15833700
申请日：2017-12-06
Applicant: TOPPAN PRINTING CO., LTD.
Inventor： Akira Nagano , Takashi Nishihara , Kazunari Mitsui
IPC: G03H1/00 , G02B27/42 , B42D25/324 , G02B5/18 , G02B27/22 , B44F1/10 , B42D25/351 , B42D25/328 , B42D25/21
Abstract: A display includes one or more first relief structures. Each of the one or more first relief structures consists of a smooth first reflection surface and a plurality of protrusions or recesses, each top surface of the protrusions or each bottom of the recesses is a smooth second reflection surface parallel to the first reflection surface, each of the one or more first relief structures is configured to display a color as a structural color by emitting a plurality of wavelength components of visible light wavelengths in the same direction, and each of the second reflection surfaces has a height or depth relative to the first reflection surface in a range of 0.1 to 0.5 μm.
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