公开(公告)号：US20230210367A1

公开(公告)日：2023-07-06

申请号：US18114524

申请日：2023-02-27

Applicant: Meta Platforms Technologies, LLC

Inventor： Robin Sharma ,  Mohamed Tarek El-Haddad

IPC: A61B3/12 ,  A61B3/00 ,  A61B3/14

CPC classification number: A61B3/12 ,  A61B3/005 ,  A61B3/14

Abstract: A head mounted display includes a display layer, 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：US11642018B1

公开(公告)日：2023-05-09

申请号：US16743985

申请日：2020-01-15

Applicant: Meta Platforms Technologies, LLC

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

IPC: A61B3/10 ,  G02B27/01 ,  A61B5/00 ,  G02C7/02

CPC classification number: A61B3/102 ,  A61B5/0066 ,  G02B27/0172 ,  G02B2027/0178 ,  G02C7/027

Abstract: A volumetric depth image is captured. The volumetric depth image includes a front surface of a prescription lens, a back surface of the prescription lens, and a cornea of an eye of a wearer of the prescription lens. Lens-to-eye data is determined from the volumetric depth image. The lens-to-eye data includes measurements of the prescription lens with respect to the eye. A three-dimensional (3D) optical-mechanical fit profile is generated or the wearer based on the lens-to-eye data.

公开(公告)号：US11768378B1

公开(公告)日：2023-09-26

申请号：US16743950

申请日：2020-01-15

Applicant: Meta Platforms Technologies, LLC

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

IPC: G02B27/01 ,  G02C7/02 ,  G02C7/08

CPC classification number: G02B27/0172 ,  G02C7/022 ,  G02C7/027 ,  G02C7/088

Abstract: A plano-concave optical layer is fabricated based on an optical-mechanical fit profile. A concave-side of the plano-concave optical layer and a base curvature provide an optical power that matches the optical power from prescription lenses of eyeglasses.

公开(公告)号：US11867900B2

公开(公告)日：2024-01-09

申请号：US16844890

申请日：2020-04-09

Applicant: Meta Platforms Technologies, LLC

Inventor： Robin Sharma ,  Mohamed Tarek El-Haddad

IPC: G02B27/00 ,  G06F3/01 ,  G06T7/00 ,  G02B27/01 ,  H05B47/13 ,  G06V40/18 ,  G06V40/19

CPC classification number: G02B27/0093 ,  G02B27/0172 ,  G06F3/013 ,  G06T7/0016 ,  G06V40/18 ,  G06V40/19 ,  H05B47/13 ,  G06T2207/30041

Abstract: An eye-tracking method includes enabling at least one light source of an array of light sources to emit non-visible light to illuminate an eye. The method also includes obtaining at least one image of the eye while the at least one light source is enabled. A position of the eye may then be determined based on a position of the at least one light source within the array of light sources in response to determining that the at least one image indicates a bright pupil condition when the at least one light source was enabled.

公开(公告)号：US11614638B1

公开(公告)日：2023-03-28

申请号：US16743689

申请日：2020-01-15

Applicant: Meta Platforms Technologies, LLC

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

IPC: G02B27/01 ,  G02C7/02 ,  G02C7/08

Abstract: A distortion profile is based on user lens data and a selected optical-mechanical profile of a selected head mounted device. The user lens data is associated with prescription lenses worn by the user. A prescription optical layer is fabricated based on the distortion profile for the selected head mounted device.

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：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.