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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
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.
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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
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.
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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
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.
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公开(公告)号：US20240012473A1
公开(公告)日：2024-01-11
申请号：US18306955
申请日：2023-04-25
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Wei Wu , Mehmet Mutlu , Alfredo Bismuto , Qi Zhang , Kuan Pei Yap
CPC classification number: G06F3/013 , G06T19/006
Abstract: Systems, methods, and devices for eye tracking are provided. A device may include a multi-functional optical module including a plurality of optical lens layers. The device may include a layer, among the plurality of optical lens layers, including a patterned substrate including a plurality of light emitting diodes in a field of view of the layer and a plurality of wires configured to connect to a printed circuit board assembly. The light emitting diodes in the field of view may be configured to illuminate light directed to at least one eye of a user to cause at least one reflection of the at least one eye.
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公开(公告)号：US11650426B2
公开(公告)日：2023-05-16
申请号：US16854667
申请日：2020-04-21
Applicant: Meta Platforms Technologies, LLC
Inventor： Qi Zhang , Gang Li , Robin Sharma , Gregory Olegovic Andreev , Andrew John Ouderkirk , Karol Constantine Hatzilias , Ying Geng
CPC classification number: G02B27/0179 , G02B5/32 , G02B27/0081 , G02B27/0172 , G02B27/425 , G02B2027/0109 , G02B2027/0174 , G02B2027/0178 , G02B2027/0187 , G03H1/0402 , G03H2001/0413 , G03H2001/0439 , G03H2223/12 , G03H2223/24 , G03H2260/12
Abstract: Techniques disclosed herein relate generally to eye-tracking in near-eye display systems. One example of an eye illuminator for eye-tracking includes a substrate transparent to visible light, an array of light sources immersed in the substrate and configured to emit infrared light, and a holographic optical element conformally coupled to a surface of the substrate and encapsulated by an encapsulation layer. The holographic optical element is configured to transmit the visible light and diffract the infrared light emitted by the array of light sources to the eye of a user for eye-tracking.
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Patent Agency Ranking
公开(公告)号：US11649935B2
公开(公告)日：2023-05-16
申请号：US17877715
申请日：2022-07-29
Applicant: Meta Platforms Technologies, LLC
Inventor： Guohua Wei , Maik Andre Scheller , Karol Constantine Hatzilias , Christopher Yuan-Ting Liao , Qi Zhang , Joseph S. Corry
CPC classification number: F21K9/61 , F21K9/69 , G02B1/118 , G02B6/005 , G02B6/0058 , G02B6/0065
Abstract: A device includes a light source, a waveguide layer, and a light director layer. The light source emits illumination light. The waveguide layer includes a cladding layer and an optical waveguide. The cladding layer provides a top planar surface of the waveguide layer and the optical waveguide is immersed in the cladding layer and includes a light input coupler. The light director layer includes a bottom planar surface that is disposed on the top planar surface of the waveguide layer. The light director layer also includes a light director that receives and directs the illumination light to the light input coupler as shaped light. The light director is configured to tilt the illumination light to give the shaped light a tilt angle with respect to the light input coupler.
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公开(公告)号：US11526129B1
公开(公告)日：2022-12-13
申请号：US16213906
申请日：2018-12-07
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Andrew John Ouderkirk , Qi Zhang
IPC: G03H1/02
Abstract: An interference structure having a nanovoided hologram material is described. The nanovoided hologram material may have an index of refraction difference of approximately 0.4. The interference structure may include about 10% to 90% nanovoids by volume. The interference structure may be formed using a mixture of a monomer, an initiator, and solvent. The mixture may be disposed on a substrate and irradiated with two sources of light spaced apart from each other and shining on the same region of the mixture to generate an interference pattern in the mixture, leading to the selective polymerization of regions of the mixture where there is constructive interference of light. Various other devices, methods, and systems are also disclosed.
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公开(公告)号：US11435037B2
公开(公告)日：2022-09-06
申请号：US17007308
申请日：2020-08-31
Applicant: Meta Platforms Technologies, LLC
Inventor： Guohua Wei , Maik Andre Scheller , Karol Constantine Hatzilias , Christopher Yuan-Ting Liao , Qi Zhang , Joseph S. Corry
Abstract: A device or system includes a light source, an optical waveguide, and a light director. The light source emits illumination light. The optical waveguide includes a light input coupler. The light director receive the illumination light and generates shaped light. The light director adjusts the tilt angle and/or the divergence angle of the illumination light.
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公开(公告)号：US11428930B2
公开(公告)日：2022-08-30
申请号：US16534861
申请日：2019-08-07
Applicant: Meta Platforms Technologies, LLC
Inventor： Qi Zhang , Robin Sharma , Andrew John Ouderkirk , Karol Constantine Hatzilias , Christopher Yuan-Ting Liao , Gregory Olegovic Andreev
Abstract: The disclosure includes optical systems and near-eye optical elements configured to suppress stray infrared light. Infrared illuminators illuminator an eyebox area with narrow-band infrared illumination light for eye-tracking. A combiner layer receives reflected infrared light reflected of an eye of the user and directs the reflected infrared light to a camera configured to capture eye-tracking images of an eye of a user. An anti-reflection (AR) coating may be disposed on a base curvature to reduce Fresnel reflections that generate stray light. A ghost suppression component may be paired with the infrared illuminators to reduce stray light becoming incident on the camera.
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10.发明公开公开(公告)号：US20240012244A1
公开(公告)日：2024-01-11
申请号：US17862231
申请日：2022-07-11
Applicant: Meta Platforms Technologies, LLC
Inventor： Mehmet MUTLU , Wei Wu , Alfredo Bismuto , Qi Zhang , Kuan Pei Yap
CPC classification number: G02B27/0172 , G02B27/0101 , G02B27/0093 , G02B1/115 , G02C7/06 , H01L27/156 , G02B2027/0138 , G02B2027/0178
Abstract: An eye-tracking system may include an optical assembly with integrated micro light emitting diodes. The optical assembly may include a substrate and a flexible printed circuit board assembly bonded to the substrate. Micro light emitting diodes may also be bonded to the substrate. A plurality of conductors may be laminated in the substrate. The conductors may electrically connect the micro light emitting diodes to the printed circuit board assembly. An optically clear adhesive layer may be adhered to the substrate. The optically clear adhesive layer may include an anti-reflective layer and an optical adhesive layer to arranged in a stacked configuration.
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