公开(公告)号：US11536555B2

公开(公告)日：2022-12-27

申请号：US17167005

申请日：2021-02-03

Applicant: Meta Platforms Technologies, LLC

Inventor： Maik Andre Scheller ,  Liliana Ruiz Diaz ,  Marc Aurele Gilles ,  Andrew John Ouderkirk ,  Robert Dale Cavin

IPC: G01B9/02 ,  G02B27/01 ,  G01B11/22 ,  G01B9/02097 ,  G01B9/02017

Abstract: Self-mixed interferometer (SMI) devices and techniques are described for measuring depth and/or velocity of objects. The SMI devices and techniques may be used for eye-tracking. A light source of an SMI sensor emits coherent light that is directed to a target location with a scanning module. One or more SMI signals are measured. The one or more SMI signals are generated by the SMI sensor in response to feedback light received from the target location. The feedback light is a portion of the coherent light that illuminated the target location.

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：US20240069265A1

公开(公告)日：2024-02-29

申请号：US18062205

申请日：2022-12-06

Applicant: Meta Platforms Technologies, LLC

Inventor： Weihua Gao ,  Sheng Ye ,  Silvio Grespan ,  Aiqing Chen ,  Rongzhi Huang ,  Christopher Yuan Ting Liao ,  Andrew John Ouderkirk ,  Zhaoyu Nie ,  Liliana Ruiz Diaz

IPC: G02B5/30 ,  G02B1/111

CPC classification number: G02B5/305 ,  G02B1/111

Abstract: A multilayer polymer thin film includes an anti-reflective coating directly overlying a reflective polarizer stack. The reflective polarizer stack includes alternating first and second polymer layers, where the first layers include an isotropic polymer thin film and the second layers include an anisotropic polymer thin film. The anti-reflective coating (ARC) includes alternating third and fourth layers, where the third layers include an isotropic polymer thin film or an anisotropic polymer thin film and the fourth layers include an isotropic polymer thin film. The multilayer polymer thin film may be formed by co-extrusion where the reflective polarizer stack and the anti-reflective coating are formed simultaneously.

公开(公告)号：US20240053598A1

公开(公告)日：2024-02-15

申请号：US17887229

申请日：2022-08-12

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew John Ouderkirk ,  Spencer Allan Wells ,  Liliana Ruiz Diaz ,  Renate Eva Klementine Landig

IPC: G02B26/00 ,  G02B27/01 ,  G02B17/00 ,  G02B3/12 ,  G06F1/16

CPC classification number: G02B26/004 ,  G02B27/0172 ,  G02B17/004 ,  G02B3/12 ,  G06F1/163 ,  G02B2027/0178

Abstract: An example apparatus may include a display and an optical configuration configured to provide an image of a display, for example, in a head-mounted device. An example apparatus may include a display and an optical configuration including a first lens assembly and a second lens assembly. The first lens assembly may include a first lens, a first reflector, and an actuator. The second lens assembly may include a second lens and a second reflector. An example apparatus may include a controller configured to apply at least one electrical signal to the actuator to control the optical power of the first lens. The display light may pass through the actuator, which may be transparent and may include a plurality of actuator layers. Other devices, methods, systems and computer-readable media are also disclosed.

公开(公告)号：US11889763B2

公开(公告)日：2024-01-30

申请号：US17183302

申请日：2021-02-23

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Spencer Allan Wells ,  Christopher Stipe ,  Kenneth Alexander Diest ,  Christopher Yuan Ting Liao ,  Nagi Hosni Elabbasi ,  James Howard Thomas Ransley ,  Taha Masood ,  Liliana Ruiz Diaz ,  Laura Cressman

IPC: G02B3/12 ,  H10N30/20 ,  G02B26/00 ,  H02N2/04 ,  H10N30/05 ,  H10N30/067 ,  H10N30/87

CPC classification number: H10N30/20 ,  G02B3/12 ,  G02B26/004 ,  H02N2/04 ,  H10N30/05 ,  H10N30/067 ,  H10N30/871

Abstract: An actuator may be integrated into an optical element such as a liquid lens and configured to create spherical curvature as well as a variable cylinder radius and axis in a surface of the optical element. An example actuator may include a stack of electromechanical layers, and electrodes configured to apply an electric field independently across each of the electromechanical layers. Within the stack, an orientation of neighboring electromechanical layers may differ, e.g., stepwise, by at least approximately 10°.

公开(公告)号：US11707192B2

公开(公告)日：2023-07-25

申请号：US16918229

申请日：2020-07-01

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Maik Andre Scheller ,  Jonathan Robert Peterson ,  Joseph S. Corry ,  Liliana Ruiz Diaz ,  Andrew John Ouderkirk

IPC: A61B3/113 ,  A61B3/00 ,  G02B27/01 ,  G06F3/01

CPC classification number: A61B3/113 ,  A61B3/005 ,  A61B3/0008 ,  A61B3/0025 ,  G02B27/0172 ,  G06F3/013 ,  A61B2562/046 ,  G02B2027/0178

Abstract: An eye-tracking device includes an optical device that includes a light source with an optical cavity and a light sensor. The light source is positioned to output coherent light toward an eye of a user and receive at least a portion of the coherent light back from the eye of the user as feedback light. The feedback light enters the optical cavity and causes modulation of an intensity of the coherent light. The light sensor is optically coupled with the light source for detecting the modulated intensity of the coherent light and generating one or more signals based on the detected intensity of the coherent light. The eye-tracking device also includes one or more processors that are coupled to the optical device for determining, from the one or more signals, movement information of the eye. A method of detecting movement of an eye using the eye-tracking device is 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：US20220350147A1

公开(公告)日：2022-11-03

申请号：US17704458

申请日：2022-03-25

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Liliana Ruiz Diaz

IPC: G02B27/01 ,  G02B27/00 ,  G02B26/00

Abstract: An example apparatus may include a display and an optical configuration configured to provide an image of the display. The optical configuration may include a lens having a lens surface that supports at least one serpentine electrode. The at least one serpentine electrode may be in electrical communication with an electrical component such as an electrooptical component (e.g., including at least one of a laser, light-emitting diode, photodiode, or image sensor) or an electroactive component that may show one or more dimensional changes under application of an electric field. An example apparatus may also include a controller in electrical communication with the electrical component through the at least one serpentine electrode. In some examples, the serpentine electrode may have an approximately sinusoidal shape. Other devices, methods, systems, and computer-readable media are also disclosed.