GRID POLARIZING ELEMENT

摘要

A grid polarizing element has a structure that can prevent deteriorations due to an oxidization gas. The grid polarizing element is preferably used to polarize light in a ultraviolet light region. The grid polarizing element includes a transparent substrate and a grid layer disposed on the transparent substrate. The grid layer has a plurality of linear portions, and is shaped like a stripe. The grid layer is covered with a gas blocking layer to block the oxidization gas generated by the ultraviolet light such as ozone and active oxygen species. The gas blocking layer is transparent at a wavelength of the light to be polarized.

主权项

1. A grid polarizing element that is capable of polarizing ultraviolet light, comprising:
a transparent substrate; a grid layer provided on the transparent substrate; and a gas blocking layer that covers the grid layer, the grid layer having a plurality of linear portions and shaped like a stripe, each of the linear portions being made from a material that can be deteriorated when the material is in contact with an oxidization gas which is generated by the ultraviolet light, the gas blocking layer being configured to block the oxidization gas, the blocking layer closing spacing between the linear portions, and the gas blocking layer being transparent at a wavelength of light to be polarized.