Invention Grant
US08743443B2 Hologram fabrication process, and hologram fabricated by that process
有权
全息图制作工艺和通过该工艺制造的全息图
- Patent Title: Hologram fabrication process, and hologram fabricated by that process
- Patent Title (中): 全息图制作工艺和通过该工艺制造的全息图
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Application No.: US12513462Application Date: 2007-11-12
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Publication No.: US08743443B2Publication Date: 2014-06-03
- Inventor: Tomoko Kumasawa , Makio Kurashige , Mitsuru Kitamura , Masachika Watanabe
- Applicant: Tomoko Kumasawa , Makio Kurashige , Mitsuru Kitamura , Masachika Watanabe
- Applicant Address: JP Tokyo
- Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2006-306478 20061113; JP2006-306501 20061113; JP2006-329006 20061206
- International Application: PCT/JP2007/071886 WO 20071112
- International Announcement: WO2008/059779 WO 20080522
- Main IPC: G03H1/28
- IPC: G03H1/28

Abstract:
The invention provides a hologram fabrication process, characterized by comprising steps of fabricating a computer-generated hologram (CGH) having amplitude information and phase information recorded by computer operation on a given recording surface, irradiating the computer-generated hologram (CGH) with the first reconstructing illumination light (2) to generate the first diffracted light (3) from the computer-generated hologram (CGH) thereby reconstructing a first reconstruction image (O′), simultaneously entering the first diffracted light (3) and the first reference light (4) in a first-stage hologram recording material (11) faced away from the first reconstructed image to record a first-stage hologram (11) in it, irradiating the recorded first-stage hologram (11) with the second reconstructing illumination light (5) to generate the second diffracted light (6) from the first-stage hologram (11) thereby reconstructing the second reconstruction image (O″), and simultaneously entering the second diffracted light (6) and the second reference light (7) in a second-stage hologram recording material (21) located near the second reconstructed image (O″) to record the second-stage hologram (21) in it as a reflection or transmission type volume hologram.
Public/Granted literature
- US20100073745A1 HOLOGRAM FABRICATION PROCESS, AND HOLOGRAM FABRICATED BY THAT PROCESS Public/Granted day:2010-03-25
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