| 摘要 |
Provided is a polarization device capable of irradiating polarized light of an ultraviolet region from a visible short wavelength range to a certain wide region and having excellent characteristics in the basic performance such as an extinction ratio or transmissivity. A stripe grid (2) installed on a transparent substrate (1) is made of a titanium oxide on an amorphous. If w is referred to as an average value of the width of a linear portion (21) constituting the grid (2), t is referred to as a distance from a side of one direction side of the linear portion (21), and T is referred to as a distance from a side of the other direction side thereof, the relation is t/T>0.0149w+0.0644. |
