Transparent reflection-type
AssigneeDai Nippon Insatsu Kabushiki Kaisha
InventorsSatoshi Takeuchi, Koutaro Danjo, Shigehiko Tahara, Yoshiharu Yui, Satoshi Ikeda
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Abstract
A transparent-type hologram comprising a transparent hologram-forming layer and a holographic effect-enhancing layer comprising a thin transparent film, the holographic effect-enhancing layer being laminated on the hologram-forming portion of the transparent hologram-forming layer. The holographic effect-enhancing layer has a refractive index different from that of the transparent hologram-forming layer.
Claims43
A transparent reflection-type hologram comprising:
- a transparent hologram-forming layer including a relief-hologram forming surface, and
- a holographic effect-enhancing layer comprising a thin transparent film,
- said holographic effect-enhancing layer having a refractive index n.sub.2 different from a refractive index n.sub.1 of said transparent hologram-forming layer and being formed on the relief-hologram forming surface of the transparent hologram-forming layer, the difference between the refractive index n.sub.1 and the refractive index n.sub.2 being more than 0.2.
A transparent reflection-type hologram transfer sheet comprising, in order, a support, a transparent reflection-type hologram and an adhesive layer formed on one side of the support;
- said transparent reflection-type hologram comprising a transparent hologram-forming layer including a relief-hologram forming surface, and a holographic effect-enhancing layer comprising a thin transparent film, said holographic effect-enhancing layer having having a refractive index n.sub.2 different from a refractive index n.sub.1 of said transparent hologram-forming layer and being formed on the relief-hologram forming surface of the transparent hologram-forming layer, the difference between the refractive index n.sub.1 and the refractive index n.sub.2 being more than 0.2.
A transparent reflection-type hologram sheet comprising a releasing layer, a transparent reflection-type hologram laminated on one surface thereof, and an adhesive layer disposed between said releasing layer and said transparent reflection-type hologram;
- said transparent reflection-type hologram comprising a transparent hologram-forming layer including a relief-hologram forming surface, and a holographic effect-enhancing layer comprising a thin transparent film, said holographic effect-enhancing layer having a refractive index n.sub.2 different from a refractive index n.sub.1 of said transparent hologram-forming layer and being formed on the relief-hologram forming surface of the transparent hologram-forming layer, the difference between the refractive index n.sub.1 and the refractive index n.sub.2 being more than 0.2.
A transparent reflection-type hologram article comprising a transparent reflection-type hologram formed on the surface or internally of a substrate;
- said transparent reflection-type hologram comprising a transparent hologram-forming layer including a relief-hologram forming surface, and a holographic effect-enhancing layer comprising a thin transparent film, said holographic effect-enhancing layer having a refractive index n.sub.2 different from a refractive index n.sub.1 of said transparent hologram-forming layer and being formed on the relief-hologram forming surface of the transparent hologram-forming layer, the difference between the refractive index n.sub.1 and the refractive index n.sub.2 being more than 0.2.
Dependencies are inferred from the claim text.