VOLUME HOLOGRAM LAMINATE

• Main Authors: HIRAOKA SABURO, ONAKA KENICHI, TAMURA KISHIOMI
• Format: Patent
• Language: English; Japanese
• Published: 12.07.2018
• Subjects: ADVERTISING; BOOK COVERS; BOOKBINDING; CINEMATOGRAPHY; CRYPTOGRAPHY; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR; DISPLAY; DISPLAYING; EDUCATION; ELECTROGRAPHY; FILES; HOLOGRAPHIC PROCESSES OR APPARATUS; HOLOGRAPHY; LABELS OR NAME-PLATES; LOOSE LEAVES; MOVABLE-STRIP WRITING OR READING APPARATUS; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR; SEALS; SIGNS; SPECIAL PRINTED MATTER; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a volume hologram laminate that has a high visibility under natural light or white light, and in which the replication of a volume hologram recorded on a volume hologram recording layer is difficult.SOLUTION: The above-mentioned problem is solved by a volume hologram laminate 10. This laminate is configured by stacking a volume hologram recording layer 20 and a refractive index variable layer 32 whose refractive index is varied by light energy of a diffraction reflection wavelength of the volume hologram recording layer 20.SELECTED DRAWING: Figure 1 【課題】解決しようとする課題は、自然光又は白色光下における視認性が高く、かつ体積ホログラム記録層に記録された体積ホログラムの複製が困難である体積ホログラム積層体を提供することである。【解決手段】上記課題は、体積ホログラム記録層２０と、当該体積ホログラム記録層２０の回折反射波長の光が有するエネルギーによって屈折率が変化する屈折率可変層３２と、が積層された構成を有する体積ホログラム積層体１０によって解決される。【選択図】図１