| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens sheet which solves problems such as a vertical formation of the angle of a visual field magnification, a hot spot, a hot bar and scintillation by the application of a light distribution angle by a lens function and does not bring about a drastic increase in material/working costs. SOLUTION: In this lens array sheet provided with a lens array layer, wherein a first lens array and a second lens array formed by arranging a plurality of semicircular column-shaped cylindrical lens parallel are arranged on the same plane so as to make the length direction of the respective cylindrical lens to be almost perpendicular to each other and have a united lens layer, the top parts of unit lenses continue over a length direction in the first lens array. In addition, the second lens array is arranged by forming unit lenses without continuing the top parts of the unit lenses over the length direction between top parts of adjacent unit lenses of the first lens array. COPYRIGHT: (C)2004,JPO
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