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公开(公告)号：US20240329396A1
公开(公告)日：2024-10-03
申请号：US18742444
申请日：2024-06-13
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 display waveguide is configured to direct a first portion of display light to an eye along a first optical path. A disparity waveguide is configured to direct a second portion of the display light to a disparity sense circuit along a second optical path separated from the first optical path.
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公开(公告)号：US20240061170A1
公开(公告)日：2024-02-22
申请号：US17716954
申请日：2022-04-08
Applicant: Meta Platforms Technologies, LLC
Inventor： Guohua Wei , Mohamed Tarek Ahmed El-Haddad , Marc Aurèle Gilles , Robin Sharma , Ruobing Qian
CPC classification number: G02B6/12004 , G02B6/4214 , G02B6/1228 , G02B6/1245 , G02B2006/12159 , G02B2006/12147 , G02B2006/12102 , G02B2006/12121
Abstract: There is provided a photonic integrated circuit configured for low-coherence interferometry and in-field sensing. The photonic integrated circuit can include an opto-coupler that has a substrate substantially transparent to a specified wavelength of light and a waveguide configured to route a light beam having a center wavelength at the specified wavelength. The opto-coupler further includes a mirror disposed at an angle, and the mirror is disposed on an angled surface of the substrate, the angled surface being proximate to an output end of the waveguide. The opto-coupler further includes a beam forming element configured to collect light reflected from the mirror, and the waveguide and the mirror are integrated within the substrate.
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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：US11422390B2
公开(公告)日：2022-08-23
申请号：US16849859
申请日：2020-04-15
Applicant: Meta Platforms Technologies, LLC
Inventor： Matthieu Charles Raoul Leibovici , Jasmine Soria Sears , Christophe Antoine Hurni , Nathan Matsuda , Guohua Wei , Yu Shi , John Goward
Abstract: A device includes an optical assembly and a digital projector. The optical assembly is configured to receive visible scene light at a backside of the optical assembly and to direct the visible scene light on an optical path toward an eyeward side. The optical assembly includes a dimming layer disposed on the optical path. The dimming layer includes a photochromic material that is configured to darken in response to exposure to a range of light wavelengths. The digital projector is disposed on the eyeward side of the optical assembly and is configured to selectively emit an activation light within the range of light wavelengths to activate a darkening of a region of the dimming layer to dim the visible scene light within the region.
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公开(公告)号：US20250085592A1
公开(公告)日：2025-03-13
申请号：US18826044
申请日：2024-09-05
Applicant: Meta Platforms Technologies, LLC
Inventor： Zhujun Shi , Min Chul Shin , Guohua Wei , Giuseppe Calafiore
IPC: G02F1/13357
Abstract: The disclosed method may include configuring an illuminator to emit a first path of light in a first direction and to emit a second path of light in a second direction. The method may additionally include, configuring a reflector to reflect the first path of light in the second direction. The method may also include configuring the first path of light reflected in the second direction to interfere destructively with the second path of light when a liquid crystal is set to an off state. Various other methods, systems, and computer-readable media are also disclosed.
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Patent Agency Ranking
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：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：US12147043B2
公开(公告)日：2024-11-19
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 , Arman 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：US20250076557A1
公开(公告)日：2025-03-06
申请号：US18401296
申请日：2023-12-29
Applicant: Meta Platforms Technologies, LLC
Inventor： Guohua Wei , Zhujun Shi , Min Chul Shin , Risheng Cheng , Giuseppe Calafiore
IPC: F21V8/00
Abstract: A display system may include a display element having an array of pixels, at least one light source, and a photonic integrated circuit (PIC) illumination element overlapping the display element. The PIC illumination element may include at least one in-coupler for in-coupling light from the at least one light source and an array of out-coupling emitters configured to emit light from the PIC illumination element toward the display element. The array of out-coupling emitters may not be aligned pixel-by-pixel with the array of pixels. Various other devices, systems, and methods are also disclosed.
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公开(公告)号：US20240093984A1
公开(公告)日：2024-03-21
申请号：US18088302
申请日：2022-12-23
Applicant: Meta Platforms Technologies, LLC
Inventor： Guohua Wei , Petr Markov , Qing Chao
CPC classification number: G01B11/2513 , G02B6/12004 , G02B27/0093 , G02B27/017 , G06V40/18 , H01S5/18305 , H01S5/4031 , G02B2006/12038 , G02B2006/1204 , G02B2006/12061 , G02B2027/0178 , G06V2201/12
Abstract: An optical system is configured to support eye tracking operations in a head mounted device. The optical system includes a transparent layer, a laser, and first and second output couplers. The laser is configured to emit light into the transparent layer. The first output coupler is configured to out-couple a first portion of the light from a first location of the transparent layer. The second output coupler is configured to out-couple a second portion of the light from a second location of the transparent layer. The first and second output couplers are in the field-of-view of a user. A combination of the first portion of the light and the second portion of the light out-coupled from the first output coupler and the second output coupler is configured to generate a fringe pattern, for example, on an eye of a user of the head mounted device.
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