Patent ID: 8218123
Filing Date: 2012-07-10
Classification: G02B,G02F,G03B,H04N

Abstract:
1. A method of manufacturing a polarization converting system, the method comprising: providing a polarization splitting unit having at least one polarization splitting portion which splits unpolarized light into first and second polarized lights which have orthogonal polarizations and at least one light path changing portion which changes a transmission direction of the first polarized lights so that the first and second polarized lights are emitted in a same direction, wherein the first polarized lights are emitted through at least one region corresponding to the at least one light path changing portion and the second polarized lights are emitted through at least one region corresponding to the at least one polarization splitting portion; forming a polarization converting unit including at least one first region and at least one second region that are different from each other in polarization converting extent, wherein the at least one first region is automatically aligned with the at least one light path changing portion of the polarization splitting portion and the at least one second region of the polarization converting unit is automatically aligned with the at least one polarization splitting portion of the polarization splitting unit, wherein the forming the polarization converting unit comprises: