| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize uniform and high luminance of a lighting system using a pillar-shaped lens sheet and a light guide plate. <P>SOLUTION: The orientation angle of a pillar-shaped lens constituting the pillar-shaped lens sheet is inclined 10 to 60 degrees to a side opposite to an LED light source side based on a perpendicular line erected on a surface of the pillar-shaped lens sheet. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
