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公开(公告)号：US20230393399A1
公开(公告)日：2023-12-07
申请号：US17831066
申请日：2022-06-02
Applicant: Meta Platforms Technologies, LLC
Inventor： Garret Odom , Robin Sharma , Neil Naples , Qi Zhang
CPC classification number: G02B27/0172 , G02B27/0093 , G02B2027/011 , G02B2027/0178
Abstract: An optical element may include two or more zones to perform functions in a head-mounted display (HMD) device. An optical component may include a first optical zone characterized by a first sag profile to correct a refractive error of an eye of a user and a second optical zone characterized by a second sag profile to redirect a path of an illumination light beam. A transition zone located between the first optical zone and the second optical zone may provide a smooth transition between the first optical zone and the second optical zone.
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公开(公告)号：US11561336B2
公开(公告)日：2023-01-24
申请号：US16877988
申请日：2020-05-19
Applicant: Meta Platforms Technologies, LLC
Inventor： Guohua Wei , Qi Zhang , Andrew John Ouderkirk , Matthew E Colburn
Abstract: An optical element includes a transparent layer, outcoupling elements, and a waveguide structure. The outcoupling elements are positioned across the transparent layer. The waveguide structure provides non-visible light to the outcoupling elements and the outcoupling elements outcouple the non-visible light as non-visible illumination light to illuminate an eye region.
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公开(公告)号：US12164140B2
公开(公告)日：2024-12-10
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：US20240012246A1
公开(公告)日：2024-01-11
申请号：US18306937
申请日：2023-04-25
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Wei Wu , Anthony Diego Draper , Daniel Turowski , Mehmet Mutlu , Alfredo Bismuto , Qi Zhang , Kuan Pei Yap
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B2027/014 , G02B2027/0138 , G02B2027/0187 , G02B2027/0178
Abstract: Systems, methods, and devices for eye tracking are provided. A device may include at least one printed circuit board including a shape around a lens of the device. The device may also include a plurality of light emitting diodes arranged around the shape of the lens. The plurality of light emitting diodes may be configured to connect to the at least one printed circuit board. The plurality of light emitting diodes may also 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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Patent Agency Ranking
公开(公告)号：US11550160B1
公开(公告)日：2023-01-10
申请号：US16186442
申请日：2018-11-09
Applicant: Meta Platforms Technologies, LLC
Inventor： Robin Sharma , Qi Zhang , Andrew John Ouderkirk
Abstract: An off-axis optical combiner includes a parabolic lensing structure that selects collimated infrared image light received from an eyebox area for focusing to a focus of the off-axis optical combiner. Selecting the collimated infrared image light for focusing allows the parabolic lensing structure to form a same-sized image of an object having variable depth from the parabolic lensing structure.
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公开(公告)号：US11455031B1
公开(公告)日：2022-09-27
申请号：US15997473
申请日：2018-06-04
Applicant: Meta Platforms Technologies, LLC
Inventor： Robin Sharma , Andrew John Ouderkirk , Matthew E. Colburn , Qi Zhang , Giuseppe Calafiore , John Goward , Karol Constantine Hatzilias , Matthieu Charles Raoul Leibovici , Nihar Ranjan Mohanty , Selso Luanava
Abstract: Disclosed herein are techniques for eye illumination for eye position tracking. An illuminator for eye tracking includes a substrate configured to be placed in front of an eye of a user and a light source positioned on a surface of the substrate. The light source is configured to be positioned within a field of view of the eye of the user. A maximum dimension of the light source in a plane parallel to an emission surface of the light source is less than 500 μm.
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公开(公告)号：US12045387B2
公开(公告)日：2024-07-23
申请号：US18342277
申请日：2023-06-27
Applicant: Meta Platforms Technologies, LLC
Inventor： Qi Zhang , Chad Lichtenhan , Morteza Karami , Kuan Pei Yap , Mehmet Mutlu
Abstract: An eye tracking system with in-optical-assembly plane illumination is described. Side-emitting light emitting diodes (LEDs) aligned with a plane of an optical assembly of a near-eye display device are used to illuminate the eye of a user and generate glints that can be detected by an eye tracking camera. When a corrective optical lens or similar element is included in the optical assembly that may distort illumination beams from the light emitting diodes (LEDs), the distortion is mitigated by using in-package or externally modified LEDs that provide angled beams. In addition to in-package level mitigations such as reflectors or labels, edge portions of the distorting optical elements may be shaped or complemented with refractive elements to redirect the beams toward the eye.
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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.
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公开(公告)号：US20220390077A1
公开(公告)日：2022-12-08
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
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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