公开(公告)号：US11709411B2

公开(公告)日：2023-07-25

申请号：US17378467

申请日：2021-07-16

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Fenglin Peng ,  Ying Geng ,  Jacques Gollier ,  Giuseppe Calafiore ,  Alexander Koshelev ,  Mengfei Wang ,  Lu Lu

IPC: G02F1/29 ,  G02B27/01 ,  G02F1/13 ,  G02F1/1347 ,  G06F3/01

CPC classification number: G02F1/292 ,  G02B27/0172 ,  G02B27/0179 ,  G02F1/1323 ,  G02F1/13473 ,  G02B2027/0178 ,  G02B2027/0187 ,  G06F3/013

Abstract: A display device includes a directional illuminator providing a light beam, a display panel downstream of a directional illuminator, for receiving and spatially modulating the light beam, and a beam redirecting module downstream of the display panel, for variably redirecting the spatially modulated light beam. Steering the illuminating light by the beam redirecting module enables one to steer the exit pupil of the display device to match the user's eye location(s).

公开(公告)号：US11567332B2

公开(公告)日：2023-01-31

申请号：US17706581

申请日：2022-03-28

Applicant: Meta Platforms Technologies, LLC

Inventor： Scott Charles Mceldowney ,  Babak Amirsolaimani ,  Yun-Han Lee ,  Lu Lu ,  Mengfei Wang ,  Junren Wang

IPC: G02B27/01 ,  F21V8/00

Abstract: A device includes a light guide. The device also includes a first in-coupling element configured to couple a first input light into the light guide, and a first out-coupling element configured to couple the first input light out of the light guide as a first output light having a first output field of view (“FOV”). The device also includes a second in-coupling element configured to couple a second input light into the light guide. The device further includes a second out-coupling element configured to couple the second input light out of the light guide as a second output light having a second output FOV substantially non-overlapping with the first output FOV. A combination of the first and second output FOVs is larger than at least one of the first or second output FOV, and the first and second input lights have orthogonal polarizations.