Patent ID: 7901599

Claim:
A method of molding a polarizing film comprising the steps of: applying a colored polarizing film to a molding face of a mold; allowing the polarizing film to be sucked onto the molding face by vacuum suction to mold a colored concave and convex polarizing film; setting a tensile of the polarizing film in one direction selected from among a direction of a polarizing axis of the polarizing film and a direction perpendicular to the direction of the polarizing axis to be less than a tension of the polarizing film in the other direction perpendicular to the one direction; stretching the polarizing film at a position on a line of the diameter of the mold in parallel with the one direction less than stretching at other positions to thereby allow the color of the polarizing film at the position where the stretching of the polarizing film is less to be deeper and form a reference mark in a polarizing direction.