公开(公告)号：US10359627B2

公开(公告)日：2019-07-23

申请号：US14936937

申请日：2015-11-10

Applicant: Microsoft Technology Licensing, LLC

Inventor： R. Andrew Wall ,  Scott Woltman ,  Steven John Robbins ,  Xinye Lou ,  Gangok Lee ,  Yarn Chee Poon ,  Tuomas Vallius ,  Pasi Kostamo ,  Tapani Levola ,  Yijing Fu

IPC: G02B27/00 ,  G02B27/01 ,  G02B27/42 ,  F21V8/00

Abstract: An apparatus for use in replicating an image associated with an input-pupil to an output-pupil includes a planar optical waveguide including a bulk-substrate, and also including an input-coupler, an intermediate-component and an output-coupler. The input-coupler couples light corresponding to the image into the bulk-substrate and towards the intermediate-component. The intermediate-component performs horizontal or vertical pupil expansion and directs the light corresponding to the image towards the output-coupler. The output-coupler performs the other one of horizontal or vertical pupil expansion and couples light corresponding to the image, which travels from the input-coupler to the output-coupler, out of the waveguide. The apparatus further includes an adjacent planar optical component to provide a more uniform intensity distribution compared to if the adjacent planar optical component were absent.