| 摘要 |
PROBLEM TO BE SOLVED: To provide a lenticular lens sheet capable of controlling viewing angles of different two directions. SOLUTION: The lenticular lens sheet 40 has a lens array 41 on one principal surface, and the lens array 41 has such a constitution that first lens lines each formed by arranging first unit lenses 41a and second lens lines each formed by arranging second unit lenses 41b are connected or intersected. Lens surfaces of the first unit lens 41a and the second unit lens 41b are curved cylindrical surfaces. Thereby, light made incident on the lenticular lens sheet 40 can be expanded to different two directions. COPYRIGHT: (C)2008,JPO&INPIT
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