公开(公告)号：US20240094611A1

公开(公告)日：2024-03-21

申请号：US18135006

申请日：2023-04-14

Applicant: Meta Platforms Technologies, LLC

Inventor： Sundeep Kumar Jolly ,  Sihui He

IPC: G03B21/00 ,  G02F1/29 ,  G02F1/335 ,  G09G3/00

CPC classification number: G03B21/005 ,  G02F1/292 ,  G02F1/335 ,  G09G3/003 ,  G02F2201/307

Abstract: A leaky-mode acousto-optical modulator may be used to generate visual images suitable for direct viewing, without image-forming optics. To extend a field of view of the modulator to limits suitable for visual displays, the leaky-mode acousto-optical modulator may be equipped with a switchable beam redirector, e.g. a switchable-angle reflector, providing field of view portions one by one in a time-sequential manner. The field of view portions coalesce into a continuous synthetic field of view suitable for wide-angle visual display applications.

公开(公告)号：US20240094568A1

公开(公告)日：2024-03-21

申请号：US18135020

申请日：2023-04-14

Applicant: Meta Platforms Technologies, LLC

Inventor： Sundeep Kumar Jolly ,  Sihui He

IPC: G02F1/035 ,  G02F1/00 ,  G02F1/03

CPC classification number: G02F1/035 ,  G02F1/0072 ,  G02F1/0327

Abstract: A leaky-mode acousto-optical modulator may be used to generate visual images suitable for direct viewing, without image-forming optics. To extend a field of view of the modulator to limits suitable for visual displays, an array of acoustic transducers is coupled to a waveguide along its length. Each acoustic transducer generates an acoustic wave causing a corresponding leaky mode to appear. A reflector is disposed proximate each transducer for directing the out-coupled light portion at a unique angle, providing a corresponding field of view portion for that direction. The field of view portions coalesce into a continuous synthetic field of view suitable for wide-angle visual display applications.