公开(公告)号：WO2020168348A1

公开(公告)日：2020-08-20

申请号：PCT/US2020/018686

申请日：2020-02-18

Applicant: DIGILENS INC. ,  GRANT, Alastair, John ,  WALDERN, Jonathan, David ,  POPOVICH, Milan, Momcilo ,  HE, Sihui ,  LAO, Edward ,  SMITH, Roger, Conley

Inventor： GRANT, Alastair, John ,  WALDERN, Jonathan, David ,  POPOVICH, Milan, Momcilo ,  HE, Sihui ,  LAO, Edward ,  SMITH, Roger, Conley

IPC: G02B5/18 ,  G02B6/34 ,  G02B27/01 ,  G02B30/26 ,  G03H1/26 ,  G02F1/29

Abstract: Systems and methods for providing holographic waveguide display using integrated gratings in accordance with various embodiments of the invention are illustrated. One embodiment includes a waveguide display including a source of light, and a first waveguide including a grating structure including first and second gratings, and an input coupler configured to couple a first field-of-view portion of light, and couple a second field-of-view portion of light, wherein the first grating is configured to provide beam expansion in a first direction for the first field-of-view portion of light, and provide beam expansion in the first direction and beam extraction towards a viewer for the second field- of-view portion of light, the second grating is configured to provide beam expansion in a second direction for the second field-of-view portion of light, and provide beam expansion in the second direction and beam extraction towards a viewer for the first field-of-view portion of light.