| 摘要 |
PROBLEM TO BE SOLVED: To provide a hologram screen which has high transparency and is free from chromatic aberration and brightness unevenness in the screen surface, and to provide a method for manufacturing the hologram screen. SOLUTION: The hologram screen 11 is obtained by irradiating a recording medium 100 with reference light LR in hologram screen recording, that is, non-diffused light, as the light emitted from a zoom lens (combination lens) 90 comprising a plurality of lenses, used in a video projection device. COPYRIGHT: (C)2008,JPO&INPIT
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