| 摘要 |
PROBLEM TO BE SOLVED: To realize display of a stereoscopic picture with high quality by effectively preventing a deflection and vibration caused in a turning screen. SOLUTION: A structure of a screen 38 in configured with a hard transparent material 382, an optical diffusion material 381 and a hard transparent material 383 sequentially in a direction perpendicular to a major plane, and the optical diffusion material 381 diffuses an incident optical wave into an incident side and its opposite side nearly similarly. Furthermore, the thickness and the specific gravity of the two hard transparent members 382, 383 are selected nearly the same. Thus, the center of gravity and a turning axis of the screen 38 are located on the optical diffusion material 381 that is a projection plane to prevent a deflection and vibration of the screen 38. As a result, display of a stereoscopic picture with high quality can be realized. |
