公开(公告)号：US09588374B2

公开(公告)日：2017-03-07

申请号：US14625863

申请日：2015-02-19

Applicant: JDS Uniphase Corporation

Inventor： Keith Anderson ,  John Michael Miller ,  Hery Djie ,  Lu Tian

IPC: G02F1/13363 ,  G02F1/1335 ,  G02B5/30 ,  G02B5/18 ,  G02F1/1343

CPC classification number: G02F1/13363 ,  G02B5/18 ,  G02B5/3058 ,  G02F1/133345 ,  G02F1/133553 ,  G02F1/1341 ,  G02F1/134309 ,  G02F1/13439 ,  G02F2001/133567 ,  G02F2001/133638 ,  G02F2201/305 ,  G02F2201/307 ,  G02F2203/50

Abstract: A sub-wavelength thin-film metal grating is placed inside a liquid crystal variable optical retarder at a selected distance from a reflective electrode to form a reflective half wave plate, thereby reducing polarization dependence of the optical retardation generated by the variable optical retarder. The approach enables to form within the device the reflective half wave plate that is suitably thin without modifying the reflective electrode of the device.

Abstract translation: 将亚波长薄膜金属光栅放置在距离反射电极所选择的距离处的液晶可变光学延迟器内，以形成反射半波片，从而减小由可变光学延迟器产生的光学延迟的偏振相关性。 该方法使得能够在器件内形成适当薄的反射半波片，而不改变器件的反射电极。