公开(公告)号：US20230144920A1

公开(公告)日：2023-05-11

申请号：US17944183

申请日：2022-09-13

Applicant: Meta Platforms Technologies, LLC

Inventor： Junren WANG ,  Yuge HUANG ,  Yun-Han LEE ,  Lu LU

IPC: G02F1/1334 ,  G02F1/13363 ,  G02F1/1337

CPC classification number: G02F1/13342 ,  G02F1/13363 ,  G02F1/133707

Abstract: A device is provided. The device includes a polarization hologram polymer layer having a wavy surface, an optic axis of the polarization hologram polymer layer being configured with a spatially varying orientation in a first predetermined in-plane direction. The device also includes a compensation layer disposed at the wavy surface of the polarization hologram polymer layer and configured to compensate for the wavy surface in shape.

公开(公告)号：US20230080580A1

公开(公告)日：2023-03-16

申请号：US17866463

申请日：2022-07-15

Applicant: Meta Platforms Technologies, LLC

Inventor： Xiayu FENG ,  Yun-Han LEE ,  Babak AMIRSOLAIMANI ,  Mengfei WANG ,  Junren WANG ,  Lu LU

IPC: G02B5/30 ,  G02B5/18 ,  G02B5/20

Abstract: A device includes a diffraction element and an optical filter stacked with the diffraction element. The optical filter is configured to forwardly deflect a light from a real-world environment incident onto the optical filter, at an incidence angle greater than or equal to a predetermined angle, toward the diffraction element. The diffraction element is configured to substantially transmit the light forwardly deflected by the optical filter.