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：US11892638B2

公开(公告)日：2024-02-06

申请号：US17832081

申请日：2022-06-03

Applicant: Meta Platforms Technologies, LLC

Inventor： Mohamed Tarek Ahmed El-Haddad ,  Yang Yang ,  Francesco Larocca ,  Robin Sharma

IPC: G02B27/01 ,  G02B27/00

CPC classification number: G02B27/0172 ,  G02B27/0093 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: A near-eye imaging system includes a light source, a waveguide, a scanner, and a sensor. The light source is configured to emit light. The waveguide includes an output coupler. The scanner is configured to direct the light to the output coupler at varying scan angles. The waveguide confines the light to guide the light to the output coupler. The output coupler has negative optical power and is configured to direct the light to exit the waveguide as expanding illumination light toward an eyebox region. The sensor is configured to generate a tracking signal in response to returning light incident on the sensor via the scanner and via the output coupler.

公开(公告)号：US11848542B1

公开(公告)日：2023-12-19

申请号：US16424483

申请日：2019-05-29

Applicant: Meta Platforms Technologies, LLC

Inventor： Robin Sharma ,  Katherine Marie Smyth ,  Andrew John Ouderkirk ,  Karol Constantine Hatzilias ,  Christopher Yuan-Ting Liao

IPC: G02B27/09 ,  H01S5/42 ,  H01S5/00 ,  H01S5/183

CPC classification number: H01S5/423 ,  G02B27/0955 ,  H01S5/0085 ,  H01S5/183

Abstract: An optical system includes an illumination layer, an optical combiner, and an active optics block. The illumination layer includes an array of point light sources configured to emit calibration light. The optical combiner is configured to pass visible light to a front side of the optical system and to direct the calibration light to a camera that generates an image in response to the calibration light. The image includes an array of points corresponding to the array of point light sources. The active optics block includes an adjustable lens disposed between the illumination layer and the optical combiner and is configured to pass the calibration light to the optical combiner and to focus the visible light. The active optics block is further configured to adjust an optical power of the adjustable lens based on the image of the array of points.

公开(公告)号：US20230168524A1

公开(公告)日：2023-06-01

申请号：US17717658

申请日：2022-04-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Robin Sharma ,  Afsoon Jamali ,  Ming Lei ,  Sho Nakahara ,  Nihar Ranjan Mohanty ,  Karol Constantine Hatzilias ,  Carl Chancy

IPC: G02F1/01 ,  G02B27/01

CPC classification number: G02F1/0126 ,  G02B27/0172 ,  G02B2027/0118 ,  G02B2027/0178

Abstract: An optical assembly is configured to receive visible scene light at the backside of the optical assembly and to direct the visible scene light on an optical path toward the eyeward side. The optical assembly includes a dimming layer disposed on the optical path and includes a photochromic material that is configured to darken in response to exposure to a range of light wavelengths. An illumination layer is also disposed on the optical path and is configured to propagate an evanescent activation light within the illumination layer. The illumination layer is also configured to leak the evanescent activation light towards the dimming layer to activate a darkening of the photochromic material of the dimming layer to dim the visible scene light.

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.

公开(公告)号：US11617508B2

公开(公告)日：2023-04-04

申请号：US16844877

申请日：2020-04-09

Applicant: Meta Platforms Technologies, LLC

Inventor： Robin Sharma ,  Mohamed Tarek El-Haddad

IPC: G02B27/00 ,  A61B3/12 ,  H04N5/225 ,  H04N5/235 ,  A61B3/113 ,  A61B3/00 ,  A61B3/14 ,  A61B90/50

Abstract: A fundus illumination system includes an array of light sources, a first optical combiner, and a second optical combiner. The array of light sources are configured to be selectively enabled to emit non-visible light to illuminate a fundus of an eye. The first optical combiner is configured to receive reflected non-visible light that is reflected by the eye, direct a first component of the reflected non-visible light to a first camera to generate an image of the eye, and pass a second component of the reflected non-visible light. The second optical combiner is configured to receive a fundus imaging light responsive to the second component of the reflected non-visible light, and to direct the fundus imaging light to a second camera to generate an image of the fundus.

公开(公告)号：US11594672B2

公开(公告)日：2023-02-28

申请号：US16417911

申请日：2019-05-21

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Tanya Malhotra ,  Kenneth Diest ,  Andrew John Ouderkirk ,  Robin Sharma ,  Barry Silverstein ,  Christopher Yuan Ting Liao ,  Erik Shipton ,  Greg Olegovic Andreev ,  Katherine Marie Smyth

IPC: H01L41/047 ,  H01L41/193 ,  H01L41/09 ,  H04R17/00 ,  G02B27/01 ,  G02F1/01 ,  G02F1/061 ,  G02B5/08 ,  G02B5/30 ,  G02B27/10 ,  G06F3/01 ,  C08F14/20 ,  C08F14/22 ,  C08G77/04 ,  H01L41/083 ,  H01L41/18 ,  G02B5/18 ,  F21V8/00 ,  G02F1/29 ,  H01L41/04 ,  H01L41/253 ,  H02N1/00 ,  B05D3/06 ,  B05D3/10 ,  G02C7/08 ,  G06T19/00 ,  G06V20/20 ,  C08J9/00 ,  C08J9/04 ,  C08J9/28 ,  G02B1/04 ,  G02F1/00 ,  G02F1/065 ,  G02F1/225 ,  B29C55/00 ,  B32B27/20 ,  B32B38/00 ,  B32B38/10 ,  B29D11/00 ,  G02B3/00 ,  G02B5/04 ,  C08L83/04 ,  B82Y30/00 ,  B82Y40/00 ,  G02B7/04 ,  G02B26/00 ,  G02B3/12 ,  B32B27/30 ,  B32B33/00 ,  B29K105/04

Abstract: Examples include a device including a nanovoided polymer element having a first surface and a second surface, a first plurality of electrodes disposed on the first surface, a second plurality of electrodes disposed on the second surface, and a control circuit configured to apply an electrical potential between one or more of the first plurality of electrodes and one or more of the second plurality of electrodes to induce a physical deformation of the nanovoided polymer element.

公开(公告)号：US11583179B2

公开(公告)日：2023-02-21

申请号：US16920228

申请日：2020-07-02

Applicant: Meta Platforms Technologies, LLC

Inventor： Ruobing Qian ,  Mohamed Tarek El-Haddad ,  Robin Sharma

IPC: G01B9/02 ,  A61B3/10 ,  G01S17/894 ,  G01B9/02091

Abstract: Sensor data is captured with a sensor. The sensor data includes a lens-position of a prescription lens relative to a reference point of an optical coherence tomography (OCT) system. A mirror of a reference arm of the OCT system is positioned at an optical pathlength between an eye region of the prescription lens based at least in part on the sensor data. An OCT signal is generated while the mirror is positioned at the optical pathlength. At least one depth profile is generated that includes the prescription lens and the eye region.

公开(公告)号：US11575246B2

公开(公告)日：2023-02-07

申请号：US16675513

申请日：2019-11-06

Applicant: Meta Platforms Technologies, LLC

Inventor： Karol Constantine Hatzilias ,  Christopher Yuan-Ting Liao ,  Robin Sharma ,  Gregory Olegovic Andreev ,  Paul Armen Tchertchian ,  Andrew John Ouderkirk

IPC: H01S5/183 ,  H01S5/028 ,  H01S5/02 ,  G02B27/01

Abstract: A plurality of light sources such as vertical-cavity surface-emitting lasers (VCSELs) are configured to emit non-visible light through emission apertures. Optics are formed over the emission apertures of the plurality of light sources. The optics may provide different tilt angles or divergence angles to the non-visible light emitted by the light sources in the plurality of light sources.

公开(公告)号：US12270992B2

公开(公告)日：2025-04-08

申请号：US17874306

申请日：2022-07-27

Applicant: Meta Platforms Technologies, LLC

Inventor： Qi Zhang ,  Robin Sharma ,  Andrew John Ouderkirk ,  Karol Constantine Hatzilias ,  Christopher Yuan-Ting Liao ,  Gregory Olegovic Andreev

IPC: G02B27/00 ,  G01J5/02 ,  G02B27/01 ,  G02B27/09

Abstract: The disclosure includes near-eye optical elements configured to suppress stray infrared light. Infrared light sources illuminate an eyebox area. A combiner layer may receive reflected infrared light and direct the reflected infrared light to a camera.