METAL MOLD FOR SHAPING, POLARIZER TAKE-UP BODY, AND MANUFACTURING METHOD OF POLARIZER

摘要

PROBLEM TO BE SOLVED: To improve mass productivity, wear resistance, and manufacturing accuracy of a wire grid type polarizer compared with a prior art.SOLUTION: There is provided a metal mold for shaping 30 that contributes to manufacturing of a polarizer that limits transmission of an electromagnetic wave made incident thereon according to a polarization plane and has a cylindrical shape or a columnar shape, where a plurality of projection strips are formed with a line width equal to or less than the shortest wavelength within a wavelength band of the electromagnetic wave the transmission of which is limited, separated from each other in a direction of the line width, on a peripheral side surface.SELECTED DRAWING: Figure 8