公开(公告)号：US11635622B1

公开(公告)日：2023-04-25

申请号：US16213912

申请日：2018-12-07

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Katherine Marie Smyth

IPC: B32B3/30 ,  G02B27/01 ,  B32B17/06 ,  B32B5/14 ,  G02B5/02

Abstract: A nanovoided spacer material that is used as a mechanical buffer between at least two optical components. The optical components may include gratings (e.g., Bragg gratings, moth-eye surfaces, etc.) having sensitive and fragile surfaces (e.g., patterned surfaces). The nanovoided spacers may have a predetermined thickness and concentration of nanovoids to provide a given optical property (e.g., a reflection coefficient at an interface between two optical elements). The nanovoided spacer may include a multilayer structure (e.g., two or more layers) of varying refractive index (e.g., to reduce reflections between surfaces of the optical elements). The nanovoided spacer may include from about 10% to 90% nanovoids by volume and may have an average index of refraction of about 1.15. Various other methods, systems, apparatuses, and materials are also disclosed.

公开(公告)号：US20230119729A1

公开(公告)日：2023-04-20

申请号：US18077567

申请日：2022-12-08

Applicant: Meta Platforms Technologies, LLC

Inventor： Guohua Wei ,  Qi Zhang ,  Andrew John Ouderkirk ,  Matthew E. Colburn

IPC: F21V8/00 ,  G02B27/01

Abstract: Outcoupling elements are disposed with a transparent layer. A transparent waveguide structure receives non-visible light and delivers the non-visible light to the outcoupling elements. The outcoupling elements outcouple the non-visible light as non-visible illumination light.

公开(公告)号：US20230117679A1

公开(公告)日：2023-04-20

申请号：US18082361

申请日：2022-12-15

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew John Ouderkirk ,  Sheng Ye ,  Tingling Rao

IPC: G02B6/122 ,  G02B6/125 ,  G02B6/138 ,  G02F1/065

Abstract: Disclosed is a polymeric waveguide for propagating light therein along width and length dimensions of the polymeric waveguide. The polymeric waveguide has a first curved surface on one side thereof and a second curved surface on an opposite second side thereof, and a refractive index spatially varying through a thickness thereof between the first curved surface and the second curved surface. The polymeric waveguide is curved in a cross-section comprising at least one of the width and length dimensions.

公开(公告)号：US11619817B1

公开(公告)日：2023-04-04

申请号：US17101211

申请日：2020-11-23

Applicant: Meta Platforms Technologies, LLC

Inventor： Jacques Gollier ,  Ying Geng ,  Brian Wheelwright ,  Andrew John Ouderkirk

IPC: G02B27/01 ,  G02B3/08 ,  G02B5/30

Abstract: A head-mounted display includes a pancake lens block. The pancake lens block includes a first waveplate to form first nonlinearly polarized light, a Fresnel surface to reflect and transmit a portion of the first nonlinearly polarized light, a second waveplate to form first linearly polarized light, and a linear reflective polarizer to transmit linear polarized light of a particular polarization rotation direction and to reflect light of other polarization rotation directions.

公开(公告)号：US11613090B1

公开(公告)日：2023-03-28

申请号：US16774008

申请日：2020-01-28

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Katherine Marie Smyth ,  John Cooke ,  Robin Sharma ,  Andrew John Ouderkirk

IPC: B29D11/00

Abstract: A casting method involves providing a precursor to a mold that includes a deformable surface overlying a chamber, shaping the deformable surface according to a surface profile by adjusting a fluid pressure within the chamber and driving one or more actuators that are configured to distort the deformable surface, and solidifying the precursor while the deformable surface is shaped according to the surface profile to form an optical element.

公开(公告)号：US20230087535A1

公开(公告)日：2023-03-23

申请号：US18071643

申请日：2022-11-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Robin Sharma ,  Karol Constantine Hatzilias ,  Andrew John Ouderkirk ,  Qi Zhang

IPC: G02B27/01 ,  G02B5/20 ,  G06F3/01

Abstract: An eye is illuminated with illumination light. A wavefront image of retina-reflected light is generated and an accommodative eye state value is determined based at least in part on the wavefront image.

公开(公告)号：US11604366B2

公开(公告)日：2023-03-14

申请号：US16797566

申请日：2020-02-21

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Robin Sharma ,  Karol Constantine Hatzilias ,  Sheng Ye ,  Sebastian Sztuk ,  Kirk Erik Burgess ,  Javier San Agustin Lopez ,  Neeraj Choubey ,  Bo Asp Andersen ,  Kurt Jenkins

IPC: G02C9/00 ,  G02B27/01 ,  G06F3/01 ,  B32B27/08 ,  B32B7/12

Abstract: An optical assembly includes an optically transparent substrate and a first lens removably coupled with the optically transparent substrate by one or more adhesive layers. The one or more adhesive layers are positioned between the optically transparent substrate and the first lens. Also disclosed are an eye-tracker and a display device, each of which includes the optical assembly.

公开(公告)号：US11561405B1

公开(公告)日：2023-01-24

申请号：US16917893

申请日：2020-06-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Robin Sharma ,  Karol Constantine Hatzilias ,  Andrew John Ouderkirk ,  Qi Zhang

IPC: G02B27/01 ,  G02B5/20 ,  G06F3/01

Abstract: An eye is illuminated with infrared illumination light from an array of infrared in-field illuminators. A wavefront image of retina-reflected infrared light is generated and an accommodative eye state value is determined based at least in part on the wavefront image.

公开(公告)号：US11559201B1

公开(公告)日：2023-01-24

申请号：US17233035

申请日：2021-04-16

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Barry David Silverstein ,  Brian Wheelwright ,  Robin Sharma ,  Spencer Allan Wells

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

Abstract: Eye-tracking systems of the present disclosure may include at least one light source configured to emit modulated radiation toward an intended location for a user's eye. The modulated radiation may be modulated in a manner that enables the light source to be identified by detection and analysis of the modulated radiation. At least one optical sensor including at least one sensing element may be configured to detect at least a portion of the modulated radiation. A processor may be configured to identify, based on the modulated radiation detected by the optical sensor, the light source that emitted the modulated radiation. Various other methods, systems, and devices are also disclosed.

公开(公告)号：US11513259B1

公开(公告)日：2022-11-29

申请号：US16524631

申请日：2019-07-29

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Sheng Ye ,  Spencer Allan Wells ,  Andrew John Ouderkirk ,  Kenneth Diest ,  Renate Eva Klementine Landig

IPC: G02B1/12 ,  G02B1/04 ,  G02B27/01 ,  B01L5/00 ,  C08L83/04 ,  C08L29/04 ,  C08L75/04 ,  C08L27/16 ,  C08L23/08

Abstract: An actuator includes a primary electrode, a secondary electrode overlapping at least a portion of the primary electrode, a nanovoided polymer layer disposed between and abutting the primary electrode and the secondary electrode, the nanovoided polymer layer having a plurality of nanovoids dispersed throughout a polymer matrix, and a sealing layer at least partially encapsulating the nanovoided polymer layer, where the nanovoids include a fill gas.