公开(公告)号：US20200264378A1

公开(公告)日：2020-08-20

申请号：US16794071

申请日：2020-02-18

Applicant: DigiLens Inc.

Inventor： Alastair John Grant ,  Jonathan David Waldern ,  Milan Momcilo Popovich ,  Sihui He ,  Edward Lao ,  Roger Conley Smith

IPC: G02B6/34 ,  F21V8/00 ,  G02B27/01

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.