| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-quality grid polarization element capable of obtaining high polarization performance by solving a practical problem in manufacturing a grid polarization element having a high aspect ratio and making it possible to achieve an enhanced aspect ratio.SOLUTION: Provided at an edge, on a side opposite a transparent board 1, of each linear part 21 constituting a striped grid 2 provided on the transparent board 1 is a collapse prevention cap 3 having a larger width than each linear part 21. The collapse prevention cap 3 is formed with a transparent material, and each linear part 21 is formed with an inorganic dielectric, the aspect ratio being 7 or greater. A gap width t of each linear part 21 is made to be a width suitable in order for ultraviolet ray to be polarized. |
