| 摘要 |
PURPOSE:To easily correct the distortion of a reproduced image by providing a shield member which prevents a view-point side hologram from being irradiated with light from a white light source and a concave reflecting mirror which is curved along a hologram on the opposite side from the view point. CONSTITUTION:The shield member 8 is provided to a base 3 so that the half of a hologram cylinder 1 on the view-point side is not irradiated with light from the white light source 4, and the concave reflecting mirror 9 which is curved along the opposite side of the outer periphery of the hologram cylinder 1 from the view point is also provided. A hologram image is therefore reproduced with the hologram on the opposite side from the view point of the hologram cylinder 1 and the reproduced image 6 is reflected by the concave reflecting mirror 9 to enter the eyes of an observer 7. Consequently, the reproduced image 6 is enlarged horizontally to correct its distortion and a perspective image which is large on the front side is obtained by the concave reflecting mirror 9.
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