Patent ID: 7854506

Claim:
Glasses configured to decode three dimensional content comprising: two lenses having: a polarizing layer laminated with a polymeric material layer on one or both sides; a retarder layer laminated to a front of the polarizer layer directly or to the polymeric material to form a sheet, said retarder layer configured to decode a desired circular polarization; wherein a blank cut from a first sheet is curved into a first lens and a blank cut from a second sheet is curved into a second lens wherein together the first and second lens are able to decode three dimensional content; and wherein the first and second sheet are configured such that: (i) the first and second sheet have a polarizing axis of 0 degrees relative to horizontal and one sheet has a retarder axis at −45 degrees relative to horizontal and the other sheet has a retarder axis of +45 degrees relative to horizontal; (ii) the first and second sheet have a polarizing axis of −45 degrees relative to horizontal and one sheet has a retarder axis at 0 degrees relative to horizontal and the other sheet has a retarder axis of 90 degrees relative to horizontal; or (iii) the first and second sheet have a polarizing axis of +45 degrees relative to horizontal and one sheet has a retarder axis at 0 degrees relative to horizontal and the other sheet has a retarder axis of 90 degrees relative to horizontal.