公开(公告)号：US20230251547A1

公开(公告)日：2023-08-10

申请号：US17666979

申请日：2022-02-08

Applicant: Meta Platforms Technologies, LLC

Inventor： Hsien-Hui CHENG ,  Lu LU ,  Xuan WANG ,  Jin YAN

IPC: G02F1/29 ,  G02B17/00 ,  G02B5/32 ,  G03H1/02 ,  G02B27/28 ,  G01B11/27

CPC classification number: G02F1/29 ,  G02B17/006 ,  G02B5/32 ,  G03H1/0248 ,  G02B27/283 ,  G02B27/286 ,  G01B11/272 ,  G02F2203/24 ,  G02B27/0172

Abstract: A device includes a polarization non-selective partial reflector configured to transmit a first portion of a first light and reflect a second portion of the first light. The device also includes a polarization selective reflector configured to reflect the first portion of the first light received from the polarization non-selective reflector back to the polarization non-selective reflector. The device further includes a path correction device disposed between the polarization non-selective partial reflector and the polarization selective reflector, and configured to forwardly steer the first portion of the first light propagating between the polarization non-selective partial reflector and the polarization selective reflector.