公开(公告)号：US20230017964A1

公开(公告)日：2023-01-19

申请号：US17379625

申请日：2021-07-19

Applicant: Meta Platforms Technologies, LLC

Inventor： Hannah Noble ,  Yang Zhao ,  Chia-Hsuan Tai

IPC: G02F1/01

Abstract: An optical lens assembly to accept various illumination ellipticity profiles as angle of incidence (AOI) varies is provided. The optical lens assembly may include an optical stack, such as pancake optics. The optical lens assembly may also include a switchable optical element communicatively coupled to a controller. The optical lens assembly may further include an optical element, such as a Pancharatnam-Berry phase (PBP) lens, also known as a geometric phase lens (GPL). In some examples, the switchable optical element may be a switchable have wave plate, which may be configured, via application of optical power by the controller, so that the optical lens assembly may accept varying illumination ellipticity profiles as angle of incidence (AOI) increases.

公开(公告)号：US20220382080A1

公开(公告)日：2022-12-01

申请号：US17330422

申请日：2021-05-26

Applicant: Meta Platforms Technologies, LLC

Inventor： Hsien-Hui Cheng ,  Yang Zhao ,  Hannah Noble ,  Fenglin Peng ,  Lu Lu

IPC: G02F1/01 ,  G02F1/1347 ,  G02F1/139 ,  G02B27/01

Abstract: A polarization modulator includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell has a first type of liquid crystals configured to rotate an optical axis of light parallel to a first plane of the first liquid crystal cell. The second liquid crystal cell is configured to receive the light from the first liquid crystal cell. The second liquid crystal cell has a second type of liquid crystals configured to rotate the optical axis of the light perpendicular to a second plane of the second liquid crystal cell.

公开(公告)号：US11860571B2

公开(公告)日：2024-01-02

申请号：US17528180

申请日：2021-11-16

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew John Ouderkirk ,  Robin Sharma ,  Hannah Noble ,  Babak Amirsolaimani ,  Yusufu Njoni Bamaxam Sulai

IPC: G03H1/02 ,  G02B5/32 ,  G02B27/28

CPC classification number: G03H1/0248 ,  G02B5/32 ,  G02B27/283 ,  G03H1/0256 ,  G03H2223/23

Abstract: A system is provided. The system includes a first PVH layer configured to deflect a first polarized light having a first handedness. The system includes a second PVH layer coupled to the first PVH layer and configured to deflect a second polarized light having a second handedness opposite to the first handedness. The system includes an optical sensor configured to generate a first image based on the first polarized light deflected by the first PVH layer and generate a second image based on the second polarized light deflected by the second PVH layer.

公开(公告)号：US20220350148A1

公开(公告)日：2022-11-03

申请号：US17704850

申请日：2022-03-25

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Liliana Ruiz Diaz ,  Robin Sharma ,  Hannah Noble

IPC: G02B27/01 ,  G06T19/00 ,  G02B27/10 ,  G02F1/13363 ,  G02F1/1335

Abstract: An example apparatus may include a display, a beamsplitter having a first region and a second region, and a reflective polarizer. The reflectance of the second region of the beamsplitter may be appreciably greater than the reflectance of the first region; for example, at least approximately 20% greater. In some examples, the second region may be a peripheral region surrounding a generally centrally located first region. An example apparatus may be configured so that at least some light emitted by the display is transmitted through the first region of the beamsplitter, reflects from the reflective polarizer, reflects from the second region of the beamsplitter, and is then directed through the reflective polarizer to an eye of a user when the user wears the apparatus. Other devices, methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US20220350064A1

公开(公告)日：2022-11-03

申请号：US17488865

申请日：2021-09-29

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Nagi Hosni Elabbasi ,  Sheng Ye ,  Christopher Yuan Ting Liao ,  Hannah Noble

IPC: G02B5/30 ,  G02B1/04 ,  B32B1/00 ,  B32B27/08 ,  B32B7/023 ,  B32B27/32 ,  B32B27/30

Abstract: An optically or mechanically anisotropic polymer thin film is characterized by compound curvature, where a maximum variation of an angle of orientation of an extraordinary axis of the polymer thin film is at most 2% greater than an orientation variation associated with an initially planar polymer thin film formed to the same compound curvature.

公开(公告)号：US11782279B2

公开(公告)日：2023-10-10

申请号：US17704850

申请日：2022-03-25

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Liliana Ruiz Diaz ,  Robin Sharma ,  Hannah Noble

IPC: G02B27/01 ,  G06T19/00 ,  G02F1/13363 ,  G02F1/1335 ,  G02B27/10 ,  G02B27/28 ,  G02B27/14

CPC classification number: G02B27/0172 ,  G02B27/1006 ,  G02B27/144 ,  G02B27/283 ,  G02F1/133541 ,  G02F1/133638 ,  G06T19/006 ,  G02B2027/0178

Abstract: An example apparatus may include a display, a beamsplitter having a first region and a second region, and a reflective polarizer. The reflectance of the second region of the beamsplitter may be appreciably greater than the reflectance of the first region; for example, at least approximately 20% greater. In some examples, the second region may be a peripheral region surrounding a generally centrally located first region. An example apparatus may be configured so that at least some light emitted by the display is transmitted through the first region of the beamsplitter, reflects from the reflective polarizer, reflects from the second region of the beamsplitter, and is then directed through the reflective polarizer to an eye of a user when the user wears the apparatus. Other devices, methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US11693265B2

公开(公告)日：2023-07-04

申请号：US17330422

申请日：2021-05-26

Applicant: Meta Platforms Technologies, LLC

Inventor： Hsien-Hui Cheng ,  Yang Zhao ,  Hannah Noble ,  Fenglin Peng ,  Lu Lu

IPC: G02F1/1347 ,  G02F1/01 ,  G02B27/01 ,  G02F1/139

CPC classification number: G02F1/0136 ,  G02B27/0172 ,  G02F1/139 ,  G02F1/1347 ,  G02B2027/0178

Abstract: A polarization modulator includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell has a first type of liquid crystals configured to rotate an optical axis of light parallel to a first plane of the first liquid crystal cell. The second liquid crystal cell is configured to receive the light from the first liquid crystal cell. The second liquid crystal cell has a second type of liquid crystals configured to rotate the optical axis of the light perpendicular to a second plane of the second liquid crystal cell.