| 摘要 |
PROBLEM TO BE SOLVED: To obtain a transmission type screen using a lens sheet, which suppresses occurrence of vibration and holds flatness so as not to be influenced by environmental change. SOLUTION: In the transmission type screen 1 constituted by superposing a Fresnel lens sheet 11 on a lenticular lens sheet 12 in order to project a video image radiated from a projection device, tension is applied to respective lens sheets such as the Fresnel lens sheet 11 and the lenticular lens sheet 12 by pulling two opposed sides thereof, and pulling directions of the respective lens sheets are made nearly orthogonal. COPYRIGHT: (C)2009,JPO&INPIT
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