公开(公告)号：US11675118B2

公开(公告)日：2023-06-13

申请号：US17363982

申请日：2021-06-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Tanya Malhotra ,  Tingling Rao ,  Liliana Ruiz Diaz ,  Oleg Yaroshchuk ,  Sheng Ye ,  Andrew John Ouderkirk ,  Alexander Koshelev ,  Lafe Joseph Purvis, II ,  Junren Wang ,  Arman Boromand

IPC: G02B5/30

CPC classification number: G02B5/3041 ,  G02B5/3016 ,  C09K2323/03 ,  C09K2323/031 ,  C09K2323/035

Abstract: A film stack includes a plurality of first films and a plurality of second films alternately stacked. At least one second film of the plurality of second films includes a solid crystal including crystal molecules aligned in a predetermined alignment direction. At least one first film of the plurality of first films includes an alignment structure configured to at least partially align the crystal molecules of the solid crystal in the predetermined alignment direction.

公开(公告)号：US11639559B2

公开(公告)日：2023-05-02

申请号：US17159746

申请日：2021-01-27

Applicant: Meta Platforms Technologies, LLC

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

IPC: C30B29/60 ,  C30B29/54 ,  G02B1/08 ,  G02B5/30 ,  C30B23/02 ,  C30B11/00 ,  C30B30/04 ,  C30B30/02

Abstract: An optical element is provided. The optical element includes a solid crystal including crystal molecules aligned in a predetermined alignment pattern at least partially defined by an alignment structure.

公开(公告)号：US11513362B2

公开(公告)日：2022-11-29

申请号：US16872101

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 ,  G02F1/1362 ,  G02F1/1335 ,  G02B5/30 ,  G02B27/00

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

公开(公告)号：US11480807B2

公开(公告)日：2022-10-25

申请号：US16872101

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 ,  G02F1/1362 ,  G02F1/1335 ,  G02B5/30 ,  G02B27/00

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

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.

公开(公告)号：US11796813B2

公开(公告)日：2023-10-24

申请号：US17064567

申请日：2020-10-06

Applicant: Meta Platforms Technologies, LLC

Inventor： Ningfeng Huang ,  Oleg Yaroshchuk ,  Heeyoon Lee ,  Giuseppe Calafiore ,  Barry David Silverstein

IPC: G02B27/01 ,  G02B27/00 ,  F21V8/00 ,  G02B3/00

CPC classification number: G02B27/0172 ,  G02B27/0081 ,  G02B27/0093 ,  G02B3/0006 ,  G02B6/0026 ,  G02B6/0078 ,  G02B2027/0174

Abstract: A system includes one or more waveguides, and a plurality of grating sets coupled with the one or more waveguides. A plurality of combinations of gratings from the grating sets are configurable to direct an image light to propagate through a plurality of sub-eyeboxes forming an uncompressed eyebox. The system also includes a controller configured to selectively configure one or more combinations of gratings to operate in a diffraction state to direct the image light to propagate through one or more sub-eyeboxes forming a compressed eyebox having a size smaller than a size of the uncompressed eyebox.

公开(公告)号：US11561402B2

公开(公告)日：2023-01-24

申请号：US17218798

申请日：2021-03-31

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew Maimone ,  Oleg Yaroshchuk

IPC: G02B27/01 ,  F21V8/00 ,  G09G3/00

Abstract: A system is provided. The system includes a waveguide configured to guide an image light to propagate inside the waveguide. The system also includes a plurality of diffractive components coupled to the waveguide and switchable between operating in a diffraction state to direct the image light from the waveguide to an eye-box of the system, and operating in a non-diffraction state to transmit a light from a real-world environment to the eye-box. The system further includes a controller coupled with the plurality of diffractive components and configured to switch each of the plurality of diffractive components between operating in the diffraction state during a virtual-world subframe of a display frame and operating in the non-diffraction state during a real-world subframe of the display frame.

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.