公开(公告)号：US11846774B2

公开(公告)日：2023-12-19

申请号：US17697592

申请日：2022-03-17

Applicant: Meta Platforms Technologies, LLC

Inventor： Sihui He ,  Jacques Gollier ,  Maxwell Parsons ,  Babak Amirsolaimani ,  Wanli Chi ,  Daniel Guenther Greif ,  Renate Eva Klementine Landig ,  Xiayu Feng ,  Zhimin Shi ,  Nicholas John Diorio ,  Yang Yang ,  Giuseppe Calafiore ,  Fenglin Peng ,  Tanya Malhotra ,  Andrew John Ouderkirk

IPC: G02B27/00 ,  G02B27/01 ,  G06F3/01 ,  G02F1/29 ,  F21V8/00 ,  G02B6/35 ,  G02F1/1335 ,  G09G3/00 ,  G09G3/34 ,  G06T7/246 ,  H04N23/56 ,  G02F1/335 ,  G03H1/02 ,  G06F1/16 ,  H04N23/698 ,  G01B11/22 ,  G01S7/4865 ,  G01S17/10 ,  G02B27/42 ,  G02F1/33 ,  G06T3/40 ,  G02B27/44 ,  G02B26/08 ,  H04N23/10

CPC classification number: G02B27/0093 ,  G01B11/22 ,  G01S7/4865 ,  G01S17/10 ,  G02B6/005 ,  G02B6/0016 ,  G02B6/0031 ,  G02B6/0035 ,  G02B6/0066 ,  G02B6/3518 ,  G02B26/0816 ,  G02B27/0081 ,  G02B27/0172 ,  G02B27/0179 ,  G02B27/4205 ,  G02B27/44 ,  G02F1/133504 ,  G02F1/133526 ,  G02F1/292 ,  G02F1/294 ,  G02F1/33 ,  G02F1/335 ,  G03H1/0248 ,  G06F1/163 ,  G06F3/013 ,  G06T3/4038 ,  G06T7/246 ,  G09G3/002 ,  G09G3/3413 ,  H04N23/56 ,  H04N23/698 ,  G02B2027/0105 ,  G02B2027/0138 ,  G02B2027/0174 ,  G02B2027/0178 ,  G02B2027/0187 ,  G06T2207/30201 ,  G09G2310/0235 ,  H04N23/10

Abstract: A pupil-replicating lightguide includes a slab of transparent material, a switchable out-coupling grating for out-coupling portions of image light to propagate towards an eyebox, and a switchable tracking grating for redirecting tracking light carrying an eye image towards an eye tracking camera. One of the two gratings may be turned ON while the other is turned OFF, in a time-sequential manner, allowing the combined use of the pupil-replicating lightguide for carrying image light and eye tracking light.

公开(公告)号：US20230393317A1

公开(公告)日：2023-12-07

申请号：US18176770

申请日：2023-03-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Tanya Malhotra ,  Zhaoyu Nie ,  Anurag Tyagi ,  Lafe Joseph Purvis, II ,  Andrew John Ouderkirk ,  Ehsan Vadiee ,  Tingling Rao ,  Arman Boromand ,  Namseok Park ,  Kimberly Kay Childress

IPC: G02B5/30 ,  G02B1/08

CPC classification number: G02B5/3016 ,  G02B1/08

Abstract: A multilayer reflective polarizer includes a layer of a birefringent organic solid crystal, where the birefringent organic solid crystal has a refractive index of at least approximately 1.5 and a birefringence of at least approximately 0.1. The multilayer reflective polarizer may be configured to include alternating layers of a birefringent organic solid crystal material and a secondary material layer selected from an amorphous polymer, an inorganic amorphous compound, a liquid crystal, and an OSC material. The refractive index of the birefringent organic solid crystal layer(s) may be modified through the application of an applied voltage, current, or stress.

公开(公告)号：US20230393305A1

公开(公告)日：2023-12-07

申请号：US18158653

申请日：2023-01-24

Applicant: Meta Platforms Technologies, LLC

Inventor： Tanya Malhotra ,  Lafe Joseph Purvis, II ,  Ehsan Vadiee ,  Tingling Rao ,  Arman Boromand ,  Renate Eva Klementine Landig ,  Andrew John Ouderkirk

IPC: G02B1/00 ,  B82Y20/00 ,  G02B27/01 ,  G02B6/124

CPC classification number: G02B1/002 ,  B82Y20/00 ,  G02B27/0172 ,  G02B6/124 ,  G02B2027/0178

Abstract: An optical element includes a substrate and a metasurface located over a surface of the substrate. The metasurface may include an organic solid crystal material. A related display includes a waveguide, and a light input coupling element disposed on a surface of the waveguide, where the light input coupling element includes an organic solid crystal metasurface.

公开(公告)号：US11777054B1

公开(公告)日：2023-10-03

申请号：US17891930

申请日：2022-08-19

Applicant: Meta Platforms Technologies, LLC

Inventor： Erik Shipton ,  Tanya Malhotra

IPC: H01L33/06 ,  H01L33/00 ,  H01L27/15

CPC classification number: H01L33/06 ,  H01L27/156 ,  H01L33/0062 ,  H01L2933/0083

Abstract: A light-emitting diode includes a first semiconductor region of one of p- or n-conductivity types, a second semiconductor region of the other one of p- or n-conductivity types, forming a p-n junction with the first semiconductor region, and a quantum well layer at the p-n junction between the first and second semiconductor regions. A hyperbolic metamaterial structure is provided in the second semiconductor region. The hyperbolic metamaterial structure is coupled to the quantum well layer for extracting light from the quantum well layer. The hyperbolic metamaterial structure may be patterned to provide an array of nanoantennas to apodize the emitted beam, and to control the polarization state of the emitted beam.

公开(公告)号：US11656395B2

公开(公告)日：2023-05-23

申请号：US16874259

申请日：2020-05-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Tanya Malhotra ,  Weichuan Gao ,  Ying Geng

IPC: G02B5/30 ,  G02B27/01 ,  H04N9/31 ,  G02B27/28 ,  G03H1/02

CPC classification number: G02B5/3025 ,  G02B5/3016 ,  G02B27/0101 ,  G02B27/0172 ,  G02B27/283 ,  G03H1/0248 ,  H04N9/3102 ,  G02B2027/0178 ,  G03H2001/0264

Abstract: An optical device includes a first polarization selective reflector; a second polarization selective reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs first light toward the second polarization selective reflector and the second polarization selective reflector directs at least a portion of the first light toward the first polarization selective reflector as second light. The optical device includes a first reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs at least a portion of the second light received from the second polarization selective reflector toward the first reflector as third light and the first reflector directs at least a portion of third light toward the first polarization selective reflector.

公开(公告)号：US11567252B2

公开(公告)日：2023-01-31

申请号：US17505368

申请日：2021-10-19

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Tanya Malhotra ,  Weichuan Gao ,  Ying Geng ,  Babak Amirsolaimani

IPC: G02B27/01 ,  G02B5/30 ,  H04N9/31 ,  G02B27/28 ,  G03H1/02

Abstract: An optical device includes a first polarization selective reflector; a second polarization selective reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs first light having a first nonplanar polarization toward the second polarization selective reflector and the second polarization selective reflector directs at least a portion of the first light toward the first polarization selective reflector as second light. The optical device includes a first reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs at least a portion of the second light having a second nonplanar polarization toward the first reflector as third light.

公开(公告)号：US11563137B2

公开(公告)日：2023-01-24

申请号：US16594346

申请日：2019-10-07

Applicant: Meta Platforms Technologies, LLC

Inventor： Maik Andre Scheller ,  Andrew John Ouderkirk ,  Jonathan Robert Peterson ,  Daniele Piazza ,  Jeremy Thomas Braun ,  Kenneth Diest ,  Spencer Allan Wells ,  Renate Eva Klementine Landig ,  Liliana Ruiz Diaz ,  Tanya Malhotra

IPC: H01L31/167 ,  H02N2/04 ,  H01L31/044 ,  H01L31/05

Abstract: An optical transformer includes a light source and an array of photovoltaic cells optically coupled to the light source, where at least a portion of the photovoltaic cells are connected in series. An optical connector such as a waveguide or an optical fiber may be disposed between an output of the light source and an input of the array of photovoltaic cells. Configured to generate a high voltage output, the optical transformer may be configured to power a device such as an actuator that provides a tunable displacement as a function of voltage.

公开(公告)号：US20240142687A1

公开(公告)日：2024-05-02

申请号：US18495922

申请日：2023-10-27

Applicant: Meta Platforms Technologies, LLC

Inventor： Liliana Ruiz Diaz ,  Sheng Ye ,  Zhaoyu Nie ,  Tanya Malhotra ,  Christopher Yuan Ting Liao ,  Ehsan Vadiee ,  Andrew John Ouderkirk

IPC: G02B5/30 ,  G02B27/01

CPC classification number: G02B5/305 ,  G02B5/3083 ,  G02B27/0172

Abstract: A lighting assembly may include a light source and a reflective polarizer overlapping the light source. A portion of light that is incident on the reflective polarizer may not pass through the reflective polarizer and may be reflected back to the light source. The light source may include at least one of a light emitting diode (LED), a micro-LED, an organic light emitting diode (OLED), a micro-OLED, a liquid crystal on silicon (LCoS), or an fLCoS light source. The reflective polarizer may include a polymer birefringent multilayer structure of alternating first layers and second layers. The first layers may each include an isotropic polymer thin film the second layers each include an anisotropic polymer thin film. Various other devices, systems, and methods are also disclosed.

公开(公告)号：US11662510B2

公开(公告)日：2023-05-30

申请号：US16736186

申请日：2020-01-07

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Tanya Malhotra ,  Sheng Ye ,  Liliana Ruiz Diaz

IPC: G02B5/30 ,  B29C55/02 ,  B29C55/08 ,  B29C55/20

CPC classification number: G02B5/305 ,  B29C55/023 ,  B29C55/08 ,  B29C55/20 ,  B29K2995/0031 ,  B29K2995/0044 ,  B29K2995/0051 ,  B29K2995/0097

Abstract: A polymer layer includes a first in-plane refractive index extending along a first direction of the polymer layer, a second in-plane refractive index less than the first in-plane refractive index extending along a second direction of the polymer layer orthogonal to the first direction, a third refractive index along a direction orthogonal to both the first direction and the second direction, and a plurality of wrinkles extending along a surface of the polymer layer, where a difference between the first in-plane refractive index and the second in-plane refractive index is at least approximately 0.05, and the third refractive index is greater than the second in-plane refractive index.

公开(公告)号：US11650403B2

公开(公告)日：2023-05-16

申请号：US16750777

申请日：2020-01-23

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Robin Sharma ,  Andrew John Ouderkirk ,  Christopher Yuan Ting Liao ,  Qi Zhang ,  Tanya Malhotra ,  Karol Constantine Hatzilias ,  Maik Scheller ,  Sheng Ye ,  Gregory Olegovic Andreev ,  Guohua Wei

IPC: G02B3/00 ,  G02B27/01 ,  G02B27/12 ,  G02B19/00 ,  G02B1/00 ,  G02B5/04 ,  G02B27/09 ,  H01S5/00 ,  H01S5/026 ,  H01S5/183 ,  H01S5/343

CPC classification number: G02B19/0047 ,  G02B1/002 ,  G02B3/00 ,  G02B5/045 ,  G02B27/0172 ,  G02B27/0179 ,  G02B27/0961 ,  G02B27/0972 ,  H01S5/005 ,  H01S5/026 ,  H01S5/183 ,  H01S5/3432 ,  H01S5/34353 ,  G02B2003/0093 ,  G02B2027/0178 ,  G02B2027/0187

Abstract: An example device may include a light source, an optical element, and, optionally, an encapsulant layer. A light beam generated by the light source may be received by the optical element and redirected towards an illumination target, such as an eye of a user. The optical element may include a material, for example, with a refractive index of at least approximately 2 at a wavelength of the light beam. The light source may be a semiconductor light source, such as a light-emitting diode or a laser. The optical element may be supported by an emissive surface of the light source. Refraction at an exit surface of the optical element, and/or within a metamaterial layer, may advantageously modify the beam properties, for example, in relation to illuminating a target. In some examples, the light source and optical element may be integrated into a monolithic light source module.