| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a multiple-exposure hologram by which a hologram with a great impact can be easily obtained. SOLUTION: The method comprises: producing a master hologram recording medium AM by actual imaging using one optical interference exposure means 10; producing a hologram recording medium DM by a digital process using the other optical interference exposure means 20; duplicating the first master hologram recording medium AM; replacing the master hologram recording medium DM in the other exposure means by the duplicated hologram recording medium AM to carry out multiple exposure. In the above embodiment, an image with high accuracy by actual imaging and, for example, a three-dimensional character can be recorded together in a single recording medium, and therefore a hologram with a great impact can be produced. COPYRIGHT: (C)2008,JPO&INPIT
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