Patent ID: 6583833
Filing Date: 2003-06-24
Classification: G02F

Abstract:
A bidirectional dichroic circular polarizer, comprising:a bidirectional linear polarizer; a first quarter-wavelength layer attached or directly formed on a side of the bidirectional linear polarizer; and a second quarter-wavelength layer attached or directly formed on a second side of the bidirectional linear polarizer, an angle of a lead axis of the first quarter-wavelength layer with respect to a light-absorption axis of the bidirectional linear polarizer and an angle of a lead axis of the second quarter-wavelength layer with respect to the light-absorption axis of the bidirectional linear polarizer are substantially equal, wherein the bidirectional linear polarizer and the first and second quarter-wavelength layers transmit one direction of left or right circularly polarized light components from incident light and absorb another circularly polarized light component from incident light.