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Hologram laminate, hologram copy method, and hologram producing method

A laminate and holographic technology, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve problems such as difficult to counterfeit and difficult to obtain recording materials, and achieve the effect of improving security

Inactive Publication Date: 2009-11-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, relief-type holograms are easily forged
In contrast, it is difficult to falsify a Lippmann-type hologram in which an interference film is formed with a change in the refractive index of the inner film, because the recorded image is created using advanced technology and the recording material is difficult to obtain

Method used

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  • Hologram laminate, hologram copy method, and hologram producing method
  • Hologram laminate, hologram copy method, and hologram producing method
  • Hologram laminate, hologram copy method, and hologram producing method

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Embodiment Construction

[0048] Next, embodiments of the present invention will be described with reference to the drawings. Although the embodiments to be described below are preferred embodiments of the present invention and various technically preferred limitations are applied to them, it should be understood that the scope of the present invention is not limited to these embodiments unless it is described that they apply limitations in the present invention. Descriptions are made in the following order.

[0049] 1. An embodiment

[0050] 2. Other embodiments (variations)

[0051] 1. An embodiment

[0052] [Hologram original production system]

[0053] First, a master plate on which a hologram is recorded is produced. A master is produced by sequentially recording a plurality of rectangular hologram elements having, for example, horizontal parallax information on one hologram recording medium. In other words, if figure 2 As shown, each of a plurality of image data including disparity inform...

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Abstract

The present invention provides a hologram laminate, a hologram copy method and a hologram producing method. The hologram laminate includes a hologram record layer, and a surface protection layer. The hologram record layer is made of a photosensitive material. The surface protection layer is coated on one surface of the hologram record layer. The surface protection layer is made of an energy ray curing resin. The invention has advantages that it is capable of reducing the whole thickness of the hologram laminate, reducing a production cost, removing air from a boundary between a hologram original master and the hologram laminate, improving the safety, etc.

Description

[0001] Cross References to Related Applications [0002] The present invention contains subject matter of Japanese Priority Patent Application JP 2008-129703 filed in Japan Patent Office on May 16, 2008 and Japanese Priority Patent Application JP 2008-268139 filed in Japan Patent Office on October 17, 2008, which The entire contents are hereby incorporated by reference. technical field [0003] The present invention relates to a holographic laminate applicable to a Lippmann hologram, a holographic replication method and a holographic production method. Background technique [0004] Holograms, which can be displayed in 3D, have been widely used to determine the authenticity of credit cards. Currently, a relief type hologram on which an interference film is unevenly formed is widely used. However, relief-type holograms are easily forged. In contrast, it is difficult to falsify a Lippmann-type hologram in which an interference film is formed with a change in the refractive i...

Claims

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Application Information

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IPC IPC(8): G03H1/02G03H1/18G03F7/00B32B27/06B32B7/12
Inventor 杉浦吉浩
Owner SONY CORP
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