Patent ID: 6523962
Filing Date: 2003-02-25
Classification: G02B,H04N

Abstract:
A method for fabricating an optical element, comprising the steps of:(a) providing a plurality of first transparent members each having substantially parallel first and second surfaces, and a plurality of second transparent members each having two substantially parallel surfaces; (b) forming a polarization splitting film on said first surface of each said first transparent member; (c) forming a reflecting film on said second surface of each said first transparent member; (d) alternately arranging said plurality of first transparent members each having said polarization splitting film and said reflecting film and said plurality of the second transparent members, and adhering said plurality of first transparent members to said plurality of the second transparent members; and (e) cutting said alternately adhered transparent members at a prescribed angle to said first and second surfaces to produce an optical element block having an incident plane and an exit plane which are substantially parallel to each other.