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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：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：US12013531B1
公开(公告)日：2024-06-18
申请号：US18075838
申请日：2022-12-06
Applicant: Meta Platforms Technologies, LLC
Inventor： Karol Constantine Hatzilias , Tamer Elazhary , Yu Shi , Guohua Wei , Michiel Koen Callens , Nicholas Mcgee
IPC: G02B27/01
CPC classification number: G02B27/0101 , G02B2027/014 , G02B2027/0147
Abstract: A near-eye optical assembly includes a display waveguide and an optical structure. The display waveguide is configured to receive display light and to direct the display light to an eye of a user. The optical structure includes an input coupler, an optical path, and an output coupler. The input coupler is disposed to receive a portion of the display light that propagates through the waveguide. The optical path directs the portion of the display light from the input coupler to an output coupler that is configured to provide the received portion of the display light to a disparity sense circuit.
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Patent Agency Ranking
公开(公告)号：US20240184107A1
公开(公告)日：2024-06-06
申请号：US18075838
申请日：2022-12-06
Applicant: Meta Platforms Technologies, LLC
Inventor： Karol Constantine Hatzilias , Tamer Elazhary , Yu Shi , Guohua Wei , Michiel Koen Callens , Nicholas Mcgee
IPC: G02B27/01
CPC classification number: G02B27/0101 , G02B2027/014 , G02B2027/0147
Abstract: A near-eye optical assembly includes a display waveguide and an optical structure. The display waveguide is configured to receive display light and to direct the display light to an eye of a user. The optical structure includes an input coupler, an optical path, and an output coupler. The input coupler is disposed to receive a portion of the display light that propagates through the waveguide. The optical path directs the portion of the display light from the input coupler to an output coupler that is configured to provide the received portion of the display light to a disparity sense circuit.
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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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公开(公告)号：US20220342219A1
公开(公告)日：2022-10-27
申请号：US17672444
申请日：2022-02-15
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Poer Sung , Guohua Wei , Tingling Rao , Lafe Joseph Purvis, II , Kimberly Kay Childress , Aman Boromand , Andrew John Ouderkirk , Matthew E. Colburn
Abstract: A system comprising (1) at least one optical element having a nonplanar surface, (2) at least one photonic integrated circuit disposed on the nonplanar surface of the optical element, the photonic integrated circuit comprising (A) an optical core that contains an optically anisotropic organic material and (B) a cladding disposed over the optical core. Various other apparatuses, systems, and methods are also disclosed.
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公开(公告)号：US11435528B1
公开(公告)日：2022-09-06
申请号：US16924676
申请日：2020-07-09
Applicant: Meta Platforms Technologies, LLC
Inventor： Zihe Gao , Zhaoming Zhu , Michael Hall , Guohua Wei
Abstract: A photonic integrated circuit assembly generates light for use in a display system or a depth sensing system. The photonic integrated circuit assembly includes optical conditioning elements integrated into a photonic integrated circuit. The photonic integrated circuit includes one or more light sources on the photonic integrated circuit. The photonic integrated circuit includes a waveguide and one or more gratings located in a core of the photonic integrated circuit. The gratings may collimate and/or collocate light emitted by the light source. The photonic integrated circuit may include a beam shaping element integrated into the photonic integrated circuit. A MEMS scanner may use the collocated and/or collimated light emitted by the photonic integrated circuit to generate a display for a user or to generate a structured light pattern for use in a depth sensing system.
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