| 摘要 |
PROBLEM TO BE SOLVED: To provide a stereoscopic image display device which can be assembled with ease at a low cost and made large-sized. SOLUTION: A lower parabolic surface mirror 11 and an upper parabolic surface mirror 12 are sectioned in a parabolic shape along an arbitrary segment passing their center 11o or 12o, The upper parabolic surface mirror 12 is provided with an opening part 13, which is covered with a transparent member 14 made of, for example, acrylic resin. The two parabolic surface mirrors are arranged opposite each other so that their optical axes meet each other. A lighting means may be provided inside the parabolic surface mirrors; and the opening part 13 may be covered with a half-mirror instead of the transparent member 14 and the lighting means may be turned on or off.
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