Abstract:
Appropriate recording with respect to a hologram recording medium is to be realized. After a region recording process of arranging holograms in which information is recorded at a predetermined interval in a first predetermined region of the hologram recording medium, and before a post-curing with respect to the first predetermined region is performed, signal light and reference light are applied onto a region different from the first predetermined region to perform information recording.
Abstract:
A photorefractive composite, a spatial light modulator and a hologram display device using the same include at least one carborane compound expressed as the following Chemical Formulae 1A through 1C: wherein the photorefractive composite exhibits photoconductivity and optical nonlinearity.
Abstract:
The present invention relates to a laminate structure comprising a protective layer and an exposed photopolymer layer, the laminate structure being obtainable by reacting at least one radiation-curing resin I), an isocyanate-functional resin II) and a photoinitiator system III), and the radiation-curing resin I) containing ≦5% by weight of compounds having a weight-average molecular weight of 1000, the isocyanate-functional resin II) containing ≦5% by weight of compounds having a weight-average molecular weight of
Abstract:
A method and an apparatus for forming a surface relief microstructure, especially an optically variable image on a paper substrate are provided, the method comprising the steps of: A) applying a curable composition to at least a portion of the frontside of the paper substrate; B) contacting at least a portion of the curable composition with surface relief microstructure, especially optically variable image forming means; C) curing the composition by using at least one UV lamp (1, 2, 3) which is arranged on the backside of the paper substrate; D) optionally depositing a layer of a transparent high refractive index material and/or a metallic layer on at least a portion of the cured composition, wherein the lamp (1, 2, 3) having emission peak(s) in the UV-A and near VIS range and the curable composition comprises at least a photoinitiator which absorbs in the UV-A region and preferably in the near VIS range. A paper product obtainable uses the method and an apparatus for forming a surface relief microstructure on a paper substrate. Surface relief microstructures, such as holograms may be replicated rapidly and with accuracy on a paper substrate by using the method and the apparatus.
Abstract:
A method of producing a diffractive optical element includes forming on a textured surface of a first substrate (2) a predetermined pattern of an ink (3) including an activator for a metallization reaction and one or more binders; causing or allowing the binder to solidify; applying a first adhesive layer (4) on top on the solidified binder and activator; securing a second substrate (5) to the adhesive layer; removing the second substrate with adhered solidified binder and activator from the first substrate; and forming a metal coating (10) onto the activator-containing regions adhered to the second substrate.
Abstract:
A hologram recording film manufacturing method includes the steps of obtaining a laminated structure by alternately laminating M (where M≧2) photosensitive material precursor layers including a photosensitive material and at least one (M−1) resin layer on one another, obtaining M photosensitive material layers, where at least two interference fringes with a desired pitch and a desired slant angle are formed on each of the M photosensitive material layers, from the M photosensitive material precursor layers by irradiating the laminated structure with a reference laser light beam and an object laser light beam, and making the slant angles of the M photosensitive material layers different from each other while retaining the pitch value, which is defined on a face of the photosensitive material layer, by irradiating the laminated structure with an energy ray from the laminated structure's one face side, and heating the laminated structure.
Abstract:
An organic-inorganic hybrid material comprising (a) at least one soluble organic polymer and (b) at least one mono- or polynuclear metal complex having at least one ligand which comprises at least one photochemically and/or thermally polymerizable functional group. Also disclosed is an optical component which is made by using the hybrid material.
Abstract:
In a printing apparatus, a recording material ejection nozzle is configured to eject a holographic recording material in dots onto a support, and a hologram recording optical system is configured to emit a plurality of beams of laser light simultaneously onto the holographic recording material ejected on the support by the recording material ejection nozzle to record interference fringes therein. A scanning drive unit is configured to move the recording material ejection nozzle and the hologram recording optical system relative to the support.
Abstract:
A hologram record carrier has a substrate and a reflective layer, wherein recording or reproducing of information is performed by light irradiation. The hologram record carrier further comprises a holographic recording layer that reserves an optical interference pattern comprising components of coherent reference light and signal light as a diffractive grating therein, and a two-dimensional recording layer that is laminated in a film thickness direction of the holographic recording layer and whose physical property changes in response to light intensity.
Abstract:
A holographic record carrier is a holographic record carrier in or from which information is recorded or reproduced by irradiation of light, comprising: a holographic recording layer for storing a light interference pattern based on components of coherent reference light and signal light as a diffraction grating in the inside thereof; and a reflective function layer laminated on a side opposite to the light incidence side of the holographic recording layer, the reflective function layer being sensitive to the intensity of irradiated light so that a non-reflective region appears in an irradiated portion thereof.