POLARIZER

摘要

PROBLEM TO BE SOLVED: To provide a layered polarizer excellent in durability. SOLUTION: The layered polarizer has a layered structure including a first layer 3 and a second layer 4. The first layer 3 consists of a dielectric material which substantially transmits light at wavelengths in a selected range while the second layer 4 consists of an oxide magnetic material having the axis of easy magnetization in the plane. Thereby, the component of the magnetic field oscillating in the y-direction is attenuated to produce polarized light having the oscillation plane of the electric field vector parallel to the y-z plane.