Authentication device, server computer, authentication method, mobile terminal with camera, and code label

    公开(公告)号:US10944735B2

    公开(公告)日:2021-03-09

    申请号:US16862852

    申请日:2020-04-30

    摘要: An authentication apparatus including an input interface to acquires an image of a hologram label on an access object including key information; a processing history storage table that correlates a first image with the key information and stores the correlated image; an information determination circuit that refers to the processing history storage table, based on key information included in a second image that is being acquired after the first image, and determines whether the key information corresponds to key information of the second image; and a processing determination circuit that compares feature data of the second image that is not key information with feature data of the first image that is not key information in response to the information determination circuit determining the key information of the first image as being present, and uses the results of the comparison to determine whether to execute processing using the second image.

    Optical film
    4.
    发明授权

    公开(公告)号:US11373344B2

    公开(公告)日:2022-06-28

    申请号:US16422382

    申请日:2019-05-24

    摘要: An optical film including a recording surface on which a plurality of unit blocks is disposed at regular intervals. For these unit blocks, phase components of light from a reconstruction point are calculated. The recording surface includes a calculated element region provided with an array of the unit blocks for which phase components of light from the reconstruction point are calculated for reproduction of an image. A first image is a monotone reconstruction image having even brightness, and a second image is a grayscale image having brightness gradation.

    Optical film with recording surface, and display body including optical film

    公开(公告)号:US10948876B2

    公开(公告)日:2021-03-16

    申请号:US16203198

    申请日:2018-11-28

    发明人: Akihito Kagotani

    摘要: According to one embodiment, there is provided an optical film with a recording surface, the recording surface including: a computation element section in which a phase component of light from each reconstruction point of a reconstructed image is computed, the computation element section corresponding to each reconstruction point one by one; a phase angle recording area in which a phase angle computed based on the phase component is recorded; and a phase angle non-recording area in which the phase angle is not recorded, the phase angle computed based on the phase component being recorded in an overlapping area where the computation element section and the phase angle recording area overlap each other.

    EL device use front plate and lighting device

    公开(公告)号:US10763456B2

    公开(公告)日:2020-09-01

    申请号:US15230554

    申请日:2016-08-08

    发明人: Akihito Kagotani

    摘要: A front plate for a lighting device includes a translucent substrate having a first surface, a high refractive index layer formed on the first surface of the translucent substrate and having a refractive index higher than a refractive index of the translucent substrate, and an electrically conductive light reflection layer formed on a surface of the high refractive index layer on an opposite side of the translucent substrate. The electrically conductive light reflection layer is formed on a portion corresponding to a non-luminous region around a luminous region on the surface of the high refractive index layer.

    Organic EL (electroluminescent) device

    公开(公告)号:US10651415B2

    公开(公告)日:2020-05-12

    申请号:US15822286

    申请日:2017-11-27

    IPC分类号: G02B5/02 H01L51/52

    摘要: An organic EL (electroluminescent) device includes a translucent substrate, a transparent electrode, a luminescent layer, and a cathode placed over one surface of the translucent substrate, and a light extraction film having unevenness placed on the other surface. The surface of the cathode facing the luminescent layer has a plurality of recesses or protrusions. The Fourier transform image of the surface of the cathode facing the luminescent layer has a surface plasmon absorption suppression area including a spatial frequency v obtained from Eq. (I) and a light scattering area not including spatial frequencies equal to or greater than the spatial frequency v.

    Optical element, transfer foil, authentication medium, and method of verifying authentication medium

    公开(公告)号:US11511558B2

    公开(公告)日:2022-11-29

    申请号:US17021769

    申请日:2020-09-15

    摘要: A subwavelength grating displaying a colored image exhibiting a color corresponding to a grating period of a subwavelength grating in reflection directions including a specular reflection direction. A relief surface displaying a reflection image in monochromatic reflected light in reflection directions including a direction different from the specular reflection direction. An optical element has a first state in which neither a colored image nor a reflection image is displayed, a second state in which the colored image is mainly displayed, and a third state in which the reflection image is mainly displayed. A plane in which the optical element is disposed and a plane including a line of sight of an observer form an observation angle therebetween. The optical element is observed in any of the first, second and third states according to the observation angle.

    Integrated three dimensional display and method of recording identification information

    公开(公告)号:US11356649B2

    公开(公告)日:2022-06-07

    申请号:US17231542

    申请日:2021-04-15

    摘要: An integrated three-dimensional display includes a recording surface which includes a calculated element region in which phase components of light from light converging points of a holographic reconstructed image are calculated, and a phase angle recorded area for recording a phase angle calculated based on the phase components. The phase angle recorded area includes a plurality of monochromatic regions having a uneven structure surface. The phase angle is recorded in an overlap area in which the calculated element region and the phase angle recorded area overlap each other. Light converges on the light converging points at specific distances from the recording surface, the specific distances being determined for the respective light converging points even when light reflected from the plurality of monochromatic regions converges.