Patents by Inventor Yusufu Njoni Bamaxam Sulai
Yusufu Njoni Bamaxam Sulai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11960090Abstract: An optical assembly a substrate having a first surface and a second surface that is opposite to and substantially parallel with the first surface. The first surface has a first curved profile and the second surface has a second curved profile. The optical assembly also includes a beam splitter on the first surface and a reflector on the second surface. The optical assembly is configured to transmit image light received at the first surface in an optical path that includes reflection at each of the reflector and the beam splitter before the image light is output from the second surface. The optical assembly is also configured to transmit ambient light received at the first surface such that the second light is output from the second surface without undergoing reflection at either the reflector or the beam splitter. A method of transmitting light through the optical assembly is also disclosed.Type: GrantFiled: August 23, 2022Date of Patent: April 16, 2024Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Ying Geng, Brian Wheelwright, Jacques Gollier, Babak Amirsolaimani, Weichuan Gao, Yusufu Njoni Bamaxam Sulai
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Patent number: 11933975Abstract: An optical system includes an optical waveguide, and a first optical element configured to direct a first ray, having a first circular polarization and impinging on the first optical element at a first incidence angle, in a first direction so that the first ray propagates through the optical waveguide via total internal reflection toward a second optical element. The first optical element is configured to also direct a second ray, having a second circular polarization that is distinct from the first circular polarization and impinging on the first optical element at the first incidence angle, in a second direction that is distinct from the first direction so that the second ray propagates away from the second optical element. The second optical element is configured to direct the first ray propagating through the optical waveguide toward a detector.Type: GrantFiled: February 22, 2022Date of Patent: March 19, 2024Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Babak Amirsolaimani, Pasi Saarikko, Ying Geng, Yusufu Njoni Bamaxam Sulai, Scott Charles McEldowney
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Patent number: 11860571Abstract: A system is provided. The system includes a first PVH layer configured to deflect a first polarized light having a first handedness. The system includes a second PVH layer coupled to the first PVH layer and configured to deflect a second polarized light having a second handedness opposite to the first handedness. The system includes an optical sensor configured to generate a first image based on the first polarized light deflected by the first PVH layer and generate a second image based on the second polarized light deflected by the second PVH layer.Type: GrantFiled: November 16, 2021Date of Patent: January 2, 2024Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Andrew John Ouderkirk, Robin Sharma, Hannah Noble, Babak Amirsolaimani, Yusufu Njoni Bamaxam Sulai
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Patent number: 11852814Abstract: A display device includes an optical diffuser configured to, in response to receiving image light, output diffused image light having a same polarization as the image light. The optical diffuser is also configured to transmit ambient light. The display device also includes an optical assembly that includes a substrate, a reflector coupled to the substrate, and a beam splitter coupled to the substrate. The optical assembly is configured to transmit the diffused image light at a first optical power by reflecting the diffused image light at the reflector and at the beam splitter and to transmit the transmitted ambient light at a second optical power that is less than the first optical power without reflection at the reflector or the beam splitter. A method for transmitting light through the display device is also disclosed.Type: GrantFiled: March 5, 2020Date of Patent: December 26, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Yusufu Njoni Bamaxam Sulai, Gang Li, Ying Geng, Brian Wheelwright, Jacques Gollier, Babak Amirsolaimani, Weichuan Gao
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Patent number: 11852949Abstract: A hybrid lens is disclosed including optically coupled varifocal lens and adaptive lens. The varifocal lens is configured for varying optical power of the hybrid lens, and an adaptive lens includes a voltage-controlled element for varying optical power of the adaptive lens in coordination with varying the optical power of the varifocal lens and responsive to variation of the optical power of the hybrid lens, for lessening an optical aberration of the hybrid lens. The hybrid lens may be used in head-mounted displays e.g. for lessening a vergence-accommodation conflict.Type: GrantFiled: February 16, 2021Date of Patent: December 26, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Lu Lu, Wai Sze Tiffany Lam, Yusufu Njoni Bamaxam Sulai
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Patent number: 11835722Abstract: A display device includes an optical assembly and a display that includes a front surface and a back surface. The display is configured to output image light from the front surface and transmit ambient light from the back surface to the front surface. The optical assembly includes a substrate that has a substantially uniform thickness, a beam splitter, and a reflector. The optical assembly is configured to receive the image light output from the front surface of the display and to transmit a portion of the image light at a first non-zero optical power via an optical path that includes reflections at the reflector and at the beam splitter. The optical assembly is also configured to transmit a portion of the ambient light through the optical assembly at a second optical power without reflection at the reflector. The second optical power is less than the first optical power.Type: GrantFiled: March 5, 2020Date of Patent: December 5, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Yusufu Njoni Bamaxam Sulai, James Ronald Bonar, Chloe Astrid Marie Fabien
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Publication number: 20230324669Abstract: According to examples, an optical lens assembly for head-mount display (HMD) devices may include an optical lens configuration with a first optical element and a second optical element. The first optical element and the second optical element may be affixed together along a peripheral edge to form a gap between the two optical elements and may compensate chromatic dispersion characteristics. The optical lens configuration may also include a reflective polarizer layer, a quarter wave layer, and a semi-transparent mirror provided on selected surfaces of the optical elements. In some examples, the gap may be filled with air or an inert gas.Type: ApplicationFiled: April 7, 2022Publication date: October 12, 2023Applicant: Meta Platforms Technolgies, LLCInventors: Zhisheng YUN, Ying GENG, Fei LIU, Daozhi WANG, Yanming ZHAO, Yusufu Njoni Bamaxam SULAI
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Patent number: 11714287Abstract: A display device includes a display, an optical assembly, and a display-moving assembly connected to the display for moving the display between a first position and a second position. When in the first position, the display outputs image light in a first direction substantially parallel to an optical axis of the optical assembly. When in the second position, the display is positioned away from the optical axis of the optical assembly. The display device also includes a partial reflector and a partial reflector-moving assembly connected to the partial reflector for moving the partial reflector between a third position and a fourth position. When the partial reflector is in the third position, the display is in the first position and the display is disposed between the optical assembly and the partial reflector. When the partial reflector is in the fourth position, the display is in the second position.Type: GrantFiled: July 14, 2021Date of Patent: August 1, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Brian Wheelwright, Jacques Gollier, Ying Geng, Yusufu Njoni Bamaxam Sulai, Weichuan Gao, Kieran Connor Kelly, Stephen Choi
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Publication number: 20230221555Abstract: A transmissive optical element includes first and second reflective volumetric gratings that redirect an impinging light beam in a first wavelength range from the first grating to the second grating by reflective diffraction, and from the second grating out of the transmissive optical element, also by reflective diffraction. Such a configuration enables the transmissive optical element to transmit a light cone in a second, different wavelength range substantially without redirecting the light cone, while redirecting the impinging light beam at the same time. The transmissive optical element may be used in a visual display e.g. to separate paths of image light in visible part of light spectrum and some service light in a different part of the light spectrum.Type: ApplicationFiled: February 1, 2022Publication date: July 13, 2023Inventors: Pavel Trochtchanovitch, Yusufu Njoni Bamaxam Sulai, Zhisheng Yun
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Patent number: 11675206Abstract: An optical assembly includes a first reflector and a second reflector. The first reflector is positioned to receive first light having a first polarization and provide the first light toward a first direction, and receive second light having the first polarization and provide the second light toward a second direction. The second reflector is positioned to receive the second light from the first reflector and reflect the second light back toward the first reflector. The first reflector receives light having a second polarization, having been reflected by the second reflector, and provide the light toward the first direction so that a first image corresponding to the first light and a second image corresponding to the second light are projected on a common image plane where at least a portion of the second image is located between two portions of the first image.Type: GrantFiled: May 31, 2022Date of Patent: June 13, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Jacques Gollier, Ying Geng, Yusufu Njoni Bamaxam Sulai, Fenglin Peng, Brian Wheelwright
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Patent number: 11668929Abstract: An optical lens assembly includes an optical lens and a Pancharatnam Berry Phase (“PBP”) element coupled to the optical lens. The PBP element is configured to provide chromatic aberration correction for the optical lens. An Abbe number of the PBP element and an Abbe number of the optical lens have opposite signs.Type: GrantFiled: April 21, 2020Date of Patent: June 6, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Babak Amirsolaimani, Brian Wheelwright, Yusufu Njoni Bamaxam Sulai, Weichuan Gao, Fenglin Peng, Ying Geng
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Publication number: 20230099173Abstract: An optical assembly a substrate having a first surface and a second surface that is opposite to and substantially parallel with the first surface. The first surface has a first curved profile and the second surface has a second curved profile. The optical assembly also includes a beam splitter on the first surface and a reflector on the second surface. The optical assembly is configured to transmit image light received at the first surface in an optical path that includes reflection at each of the reflector and the beam splitter before the image light is output from the second surface. The optical assembly is also configured to transmit ambient light received at the first surface such that the second light is output from the second surface without undergoing reflection at either the reflector or the beam splitter. A method of transmitting light through the optical assembly is also disclosed.Type: ApplicationFiled: August 23, 2022Publication date: March 30, 2023Inventors: Ying GENG, Brian WHEELWRIGHT, Jacques GOLLIER, Babak AMIRSOLAIMANI, Weichuan GAO, Yusufu Njoni Bamaxam SULAI
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Patent number: 11586090Abstract: A head-mounted display (HMD) presented herein comprises an electronic display and an optical assembly. The electronic display is configured to emit image light. The optical assembly is configured to direct the image light to an eye-box of the HMD corresponding to a location of a user's eye. The optical assembly includes a multifocal optical element, e.g., a bifocal optical element. A first portion of the multifocal optical element has a first optical power that is associated with a first image plane. The second portion of the multifocal optical element has a second optical power different than the first optical power, the second portion associated with a second image plane.Type: GrantFiled: December 15, 2020Date of Patent: February 21, 2023Assignee: Meta Platforms Technologies, LLCInventors: Yusufu Njoni Bamaxam Sulai, Brian Wheelwright
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Patent number: 11586024Abstract: An optical assembly includes at least one substrate that provides a first curved surface and a second surface. The optical assembly also includes a beam splitter on the first curved surface, a reflector on the second surface, and an optical retarder disposed between the beam splitter and the reflector. The optical assembly is configured to receive first light at the first curved surface and reflect the first light at the reflector and subsequently, at the beam splitter before outputting the first light from the reflector. The first light is transmitted through the optical assembly at a first optical power. The optical assembly is also configured to transmit second light at a second optical power that is less than the first optical power. The second light is transmitted through peripheral portions of the beam splitter and reflector without reflection at the reflector.Type: GrantFiled: August 5, 2019Date of Patent: February 21, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Ying Geng, Brian Wheelwright, Jacques Gollier, Yusufu Njoni Bamaxam Sulai, Babak Amirsolaimani, Weichuan Gao, Gang Li, Mengfei Wang
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Patent number: 11579451Abstract: A head-mounted device (HMD) contains a display, an optics block, a redirection structure, and an eye tracking system. The display is configured to emit image light and provide it to an eye of a user. The optics block is configured to direct the emitted light in order to allow it to reach the eye. The eye tracking system contains a camera, an illumination source, and a controller. The camera is configured to capture image data using infrared light reflected from the eye. The controller is configured to use this image data to determine eye tracking information. The illumination source is configured to illuminate the eye with infrared light for the purpose of taking eye tracking measurements. The redirection structure is configured to direct infrared light reflected from the eye to the eye tracking system. In multiple embodiments, redirection structures may comprise prism arrays, lenses, liquid crystal layers, or grating structures.Type: GrantFiled: October 14, 2020Date of Patent: February 14, 2023Assignee: Mela Platforms Technologies, LLCInventors: Wai Sze Tiffany Lam, Yusufu Njoni Bamaxam Sulai, Robin Sharma, Ying Geng, Lu Lu, Jacques Gollier
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Patent number: 11579425Abstract: An optical assembly includes at least one substrate that provides a first curved surface and a second surface. The optical assembly also includes a beam splitter on the first curved surface, a reflector on the second surface, and an optical retarder disposed between the beam splitter and the reflector. The optical assembly is configured to transmit the first light through the optical assembly at a first optical power. The optical assembly is also configured to transmit second light through peripheral portions of the optical assembly at a second optical power that is less than the first optical power. The first light includes light having a first polarization and wavelengths within a predetermined wavelength range. The second light includes light having wavelengths within the predetermined wavelength range and a second polarization orthogonal to the first polarization, as well as light having wavelengths outside the predetermined wavelength range.Type: GrantFiled: April 14, 2020Date of Patent: February 14, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Ying Geng, Brian Wheelwright, Jacques Gollier, Yusufu Njoni Bamaxam Sulai, Babak Amirsolaimani, Weichuan Gao, Gang Li, Mengfei Wang, Fenglin Peng
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Publication number: 20230041406Abstract: A varifocal ocular lens is disclosed. The varifocal ocular lens is based on a pancake lens having a polarization-folded optical path formed by two reflectors, e.g. one polarization-selective reflector and one partial reflector. By placing at least one of the reflectors onto a flexible deformable membrane, the shape e.g. radius of curvature and/or cylindricity of the reflector(s) may be dynamically changed to vary focal length and/or astigmatism of the ocular lens. Viewer's visual prescription and eye vergence may be dynamically and/or statically accommodated by the varifocal lens.Type: ApplicationFiled: August 25, 2021Publication date: February 9, 2023Inventors: Babak Amirsolaimani, Yusufu Njoni Bamaxam Sulai, Kieran Connor Kelly, Spencer Allan Wells
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Patent number: 11573357Abstract: A device includes a light source configured to generate an image light. The device also includes a lens assembly coupled with the light source. The lens assembly includes a mirror configured to transmit a first portion of the image light and reflect a second portion of the image light. The lens assembly also includes a reflective polarizer including a birefringent medium with a chirality and configured to substantially reflect the first portion of the image light output from the mirror as a polarized light having a predetermined handedness toward the mirror. The lens assembly further includes a lens disposed between the mirror and the reflective polarizer and configured to provide an optical power to the image light.Type: GrantFiled: November 9, 2020Date of Patent: February 7, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Fenglin Peng, Junren Wang, Yuge Huang, Lu Lu, Yusufu Njoni Bamaxam Sulai, Ying Geng, Jacques Gollier, Barry David Silverstein
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Patent number: 11567326Abstract: A device includes a light source configured to emit an image light. The device also includes an optical assembly configured to direct the image light to an eye-box of the device. The optical assembly includes a first optical element portion configured to focus a first portion of the image light propagating through the first optical element portion. The optical assembly also includes a second optical element portion configured to focus a second portion of the image light propagating through the second optical element portion. The second optical element portion includes a liquid crystal (“LC”) lens having an adjustable optical power.Type: GrantFiled: October 30, 2020Date of Patent: January 31, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Afsoon Jamali, Yang Zhao, Brian Wheelwright, Douglas Robert Lanman, Marina Zannoli, Ian Erkelens, Yusufu Njoni Bamaxam Sulai, Lu Lu, Jacques Gollier
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Patent number: 11500217Abstract: An optical lens assembly and an optical system is provided. The optical lens assembly includes a first optical element including a partial reflector and a quarter-wave plate and a second optical element including a reflective polarizer. The first optical element and the second optical element form a cavity. The pancake lens assembly further includes a varifocal lens having an adjustable optical power, and the varifocal lens is disposed inside or outside the cavity.Type: GrantFiled: May 3, 2019Date of Patent: November 15, 2022Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Afsoon Jamali, Brian Wheelwright, Yang Zhao, Yusufu Njoni Bamaxam Sulai, Douglas Robert Lanman