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Patent Searching and Data


Title:
VOLUME HOLOGRAM LAMINATE, VOLUME HOLOGRAM TRANSFER FOIL, VOLUME HOLOGRAM LABEL, CARD, DATA PAGE AND BOOK
Document Type and Number:
WIPO Patent Application WO/2022/154042
Kind Code:
A1
Abstract:
The present disclosure provides a volume hologram laminate which has a substrate and a volume hologram laminate section positioned on one surface of the substrate, wherein: the volume hologram laminate section has a volume hologram layer which contains a polymer of a photopolymerizable compound and on which an interference fringe is recorded, and also has a resin layer containing a transparent resin and positioned next to the volume hologram layer, said layers being arranged in random order; and the read-out wavelength of the volume hologram layer changes according to the observation angle and incidence angle of the reproduced illuminating light, and the color of the reproduced image from the volume hologram layer also changes according thereto.

Inventors:
YOSHIMURA YUKIHIRO (JP)
YASUDA TOMOKI (JP)
AZAKAMI MINORU (JP)
Application Number:
PCT/JP2022/000873
Publication Date:
July 21, 2022
Filing Date:
January 13, 2022
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G03H1/02; B42D25/328
Domestic Patent References:
WO2018097238A12018-05-31
Foreign References:
JP4121767B22008-07-23
JP2009104099A2009-05-14
JP2009003032A2009-01-08
JP2002140682A2002-05-17
JP2020183054A2020-11-12
JP2008242452A2008-10-09
JP2000276034A2000-10-06
US20090207465A12009-08-20
Attorney, Agent or Firm:
YAMASHITA, Akihiko et al. (JP)
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