| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a curved wall surface, a window surface of the like is frequently used in a recent building or the like, and when the projecting image of a projector is intended to be projected on such a curved surface to be displayed, the display of the projector for projecting a planar image is difficult to match the focuses of the entirety of the display so that the displayed image is blurred. SOLUTION: A holographic display device holds a hologram obtained by recording a planar plate-like light diffusing plate on a sensitizing agent held on a curved surface is held in a curved surface at the hologram recording time, and projects the projected image as a holographic screen. In this device, as the hologram, a reflection type hologram, a reflection type image hologram or a transmission type hologram is used. COPYRIGHT: (C)2004,JPO
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