公开(公告)号：US11579511B2

公开(公告)日：2023-02-14

申请号：US17399735

申请日：2021-08-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Oleg Yaroshchuk ,  Junren Wang ,  Lu Lu

IPC: G02F1/29 ,  G02B27/01

Abstract: A device is provided. The device includes a first lens assembly controllable to switch between a first plurality of optical powers. The first lens assembly includes a plurality of directly optically coupled lenses, and is configured to converge or diverge a light transmitted therethrough. The device also includes a second lens assembly coupled with the first lens assembly, and controllable to switch between a second plurality of optical powers that are opposite to the first plurality of optical powers.

公开(公告)号：US11474352B2

公开(公告)日：2022-10-18

申请号：US17137530

申请日：2020-12-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Giuseppe Calafiore ,  Oleg Yaroshchuk ,  Barry David Silverstein

IPC: G02B27/01 ,  G02B27/42 ,  G02B5/18

Abstract: A device includes a waveguide. The device also includes a plurality of grating sets coupled with the waveguide and configured to, during a plurality of time periods, couple a plurality of input image lights into the waveguide and couple the input image lights out of the waveguide as a plurality of output image lights. The plurality of input image lights have a substantially same input field of view (“FOV”) with a substantially same symmetry axis. A combined output FOV of the output image lights is larger than the input FOV.

公开(公告)号：US11467331B1

公开(公告)日：2022-10-11

申请号：US16666823

申请日：2019-10-29

Applicant: Meta Platforms Technologies, LLC

Inventor： Yun-Han Lee ,  Lu Lu ,  Mengfei Wang ,  Fenglin Peng ,  Junren Wang ,  Oleg Yaroshchuk ,  Yingfei Jiang ,  Babak Amirsolaimani ,  Scott Charles Mceldowney

IPC: G03H1/02 ,  G02B27/01 ,  F21V8/00

Abstract: An optical device includes a display configured to generate an image light; and a waveguide optically coupled with the display and configured to guide the image light to an exit pupil of the optical device. The waveguide includes an in-coupling element configured to couple the image light into the waveguide, and an out-coupling element configured to decouple the image light out of the waveguide. The out-coupling element includes a grating having a diffraction efficiency gradient along a predetermined direction at a plane of the grating.

公开(公告)号：US20250052926A1

公开(公告)日：2025-02-13

申请号：US18903224

申请日：2024-10-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Tingling Rao ,  Tanya Malhotra ,  Andrew John Ouderkirk ,  Lafe Joseph Purvis, II ,  Sandeep Rekhi ,  Arman Boromand ,  Sheng Ye ,  Oleg Yaroshchuk ,  Anurag Tyagi

IPC: G02B1/04 ,  C09D5/00 ,  C09D7/45 ,  C09D7/63 ,  C30B29/54 ,  G02B1/02 ,  G02B1/10 ,  G02B5/30

Abstract: An optical film includes an organic solid crystal film formed of a contiguous organic solid crystal having a first dimension no less than 100 micrometer and a second dimension distinct from the first dimension no less than one centimeter. Methods for making the organic solid crystal film are also described.

公开(公告)号：US12204136B2

公开(公告)日：2025-01-21

申请号：US17901851

申请日：2022-09-02

Applicant: Meta Platforms Technologies, LLC

Inventor： Yun-Han Lee ,  Lu Lu ,  Mengfei Wang ,  Fenglin Peng ,  Junren Wang ,  Oleg Yaroshchuk ,  Yingfei Jiang ,  Babak Amirsolaimani ,  Scott Charles McEldowney

IPC: G03H1/02 ,  F21V8/00 ,  G02B27/01

Abstract: A device includes a display configured to generate an image light. The device also includes a waveguide optically coupled with the display and configured to guide the image light to an exit pupil of the device. The waveguide includes a grating including a birefringent material, and a birefringence of the grating is configured to increase along a pupil-expanding direction of the device.

公开(公告)号：US11835728B2

公开(公告)日：2023-12-05

申请号：US16872109

申请日：2020-05-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Fenglin Peng ,  Ying Geng ,  Oleg Yaroshchuk

IPC: G02B27/28 ,  G02B27/01 ,  G02B27/42

CPC classification number: G02B27/283 ,  G02B27/0172 ,  G02B27/0179 ,  G02B27/425 ,  G02B2027/0178 ,  G02B2027/0187

Abstract: An example eye-tracking optical assembly includes a light source for illuminating an eye, a first diffraction type polarizing beam splitter (DT-PBS), and a second DT-PBS, wherein the first DT-PBS is configured to direct, based on polarization, a first portion of light from the second DT-PBS towards an eye-tracking detector.

公开(公告)号：US11796856B1

公开(公告)日：2023-10-24

申请号：US17384340

申请日：2021-07-23

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Sheng Ye ,  Ryan Li ,  Tingling Rao ,  Lafe Joseph Purvis, II ,  Oleg Yaroshchuk ,  Tanya Malhotra ,  Andrew John Ouderkirk

IPC: G02F1/1333 ,  G02F1/1335 ,  C09K19/24 ,  C09K19/22 ,  C09K19/30 ,  C09K19/34 ,  C09K19/20 ,  C09K19/12 ,  C09K19/18 ,  C08J5/18 ,  C09K19/36 ,  C09K19/58

CPC classification number: G02F1/133543 ,  C08J5/18 ,  C09K19/12 ,  C09K19/18 ,  C09K19/2007 ,  C09K19/22 ,  C09K19/24 ,  C09K19/3003 ,  C09K19/3068 ,  C09K19/348 ,  C09K19/36 ,  C09K19/586 ,  C09K2019/123 ,  C09K2019/188 ,  C09K2019/2035 ,  C09K2019/2042 ,  C09K2019/2078 ,  C09K2019/301 ,  C09K2019/3004 ,  C09K2019/3016 ,  C09K2019/3075

Abstract: An optical film includes a plurality of helically arranged liquid crystals and organic solid crystal structures at least partially surrounding the plurality of helically arranged liquid crystals. A method of making the optical film includes obtaining a substrate with an alignment layer and a film of a first solution on the alignment layer. The first solution includes liquid crystals and organic crystal molecules. The liquid crystals form a plurality of helically arranged liquid crystals on the alignment layer. The method also includes forming organic solid crystal structures by crystallizing the organic crystal molecules. The organic solid crystal structures at least partially surround the plurality of helically arranged liquid crystals.

公开(公告)号：US11681194B2

公开(公告)日：2023-06-20

申请号：US17671449

申请日：2022-02-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Erik Shipton ,  Oleg Yaroshchuk

IPC: G02F1/137 ,  G02B27/01 ,  G02F1/1337

CPC classification number: G02F1/13768 ,  G02B27/0172 ,  G02F1/1337 ,  G02B2027/0178

Abstract: Various embodiments set forth liquid crystal (LC) patterning control systems in which LCs are aligned using locally applied magnetic fields. The index of refraction experienced by light propagating through an anisotropic LC is dependent on orientation. As a result, a phase difference may be imparted to an optical beam that is passed through, or reflected from, an array of LCs whose orientations are controlled via locally applied magnetic fields. In some embodiments, the locally applied magnetic fields may be generated by driving currents through wires that intersect at micro or nanomagnetic particles or at magnetic domains, or by applying voltages to micro or nanocoils wrapped around high-permeability cores, among other things.

公开(公告)号：US11435585B1

公开(公告)日：2022-09-06

申请号：US16666918

申请日：2019-10-29

Applicant: Meta Platforms Technologies, LLC

Inventor： Oleg Yaroshchuk ,  Barry David Silverstein ,  Alireza Moheghi ,  Gang Li

IPC: G02B27/01 ,  G03H1/04 ,  F21V8/00 ,  G02B27/00 ,  G03H1/02 ,  G02B27/10

Abstract: An optical device having suppressed rainbow effect is provided. The optical device includes a light source configured to generate an image light, an optical combiner coupled with the light source and configured to direct the image light to an eye-box of the optical device, and a dimming element disposed at the optical combiner. The optical combiner includes at least one diffractive element. The optical combiner has a first side facing the eye-box and an opposing second side facing a real world, and the dimming element is disposed at the second side of the optical combiner. The dimming element is configured to receive a light from the real world and significantly attenuate an intensity of the light having an incidence angle in a predetermined range.

公开(公告)号：US11835729B2

公开(公告)日：2023-12-05

申请号：US18049173

申请日：2022-10-24

Applicant: Meta Platforms Technologies, LLC

Inventor： Fenglin Peng ,  Ying Geng ,  Oleg Yaroshchuk

IPC: G02B27/28 ,  G02B27/01 ,  G02B27/42 ,  G02F1/1362 ,  G02B27/00 ,  G02F1/1335 ,  G02B5/30

CPC classification number: G02B27/283 ,  G02B27/0172 ,  G02B27/425 ,  G02F1/136277 ,  G02B2027/0178

Abstract: An example optical assembly includes a display, a light source for illuminating the display, and a diffraction type polarizing beam splitter (DT-PBS) configured to direct light from a light director, wherein the DT-PBS is polarization sensitive and configured to direct, based on polarization, a first portion of light towards the display.