Optical polarization rotating device

专利名称：Optical polarization rotating device发明人：John E. Gunther,Afshin Partovi,Eric Hansotte申请号：US10209480申请日：20020730

公开号：US20040021940A1公开日：20040205

专利附图：

摘要：A polarization rotating optical device is provided. The device comprises a prismconfigured to accept an input collimated optical beam and redirect the beam by meansof total internal reflection at three or more faces of the prism. The first face reflects anincident collimated beam at an angle of 90 degrees with respect to the original beam

direction. The incident and reflected beams are comprised of orthogonal s and p

polarized components, where the s and p directions are defined with respect to the planecontaining the incident and reflected beam directions in the conventional manner. One ormore prism faces then reflect the beam within the plane normal to the incident beam.The sum of the included angles of these reflections must total an odd multiple of 90degrees. The final prism face reflects the beam by 90 degrees in a third plane orthogonalto the planes of the preceding reflection. The resulting exit beam is parallel to theincident beam and has the s and p polarization components are interchanged withrespect to the polarization components of the incident beam.

申请人：GUNTHER JOHN E.,PARTOVI AFSHIN,HANSOTTE ERIC

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