Patents by Inventor Xinye Lou
Xinye Lou 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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Publication number: 20230375671Abstract: Provided are an optical processing assembly, a ToF transmitting device, and a ToF depth information detector. The optical processing assembly is applied to an illuminating light source. The illuminating light source is configured to transmit detection light to a target field of view. The illuminating light source includes multiple light source units. Each light source unit is lit according to a predetermined timing. The optical processing assembly includes at least one light shaper and a light homogenizer.Type: ApplicationFiled: April 30, 2021Publication date: November 23, 2023Inventors: Yuhuang Meng, He Huang, Xinye Lou, Xujun Zheng, Tao Lin
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Patent number: 11822087Abstract: An optical waveguide includes an input diffractive optical element arranged for being aligned with an optical projector for diffracting the light beam therefrom, a waveguide substrate arranged for reflecting the light beam diffracted by the input diffractive optical element by means of total internal reflection, and an output diffractive optical element coupled at said waveguide substrate for partially diffracting the light beam as a diffracted light and partially transmitting the light beam as a transmitted light during the total internal reflection of the light beam within the waveguide substrate. The diffracted light is diffracted by the output diffractive optical element and is projected out of the waveguide substrate toward the user eye. The transmitted light is continuously transmitted and reflected within the waveguide substrate by the total internal reflection until the transmitted light is totally diffracted out of the waveguide substrate, so as to complete an exit pupil expansion.Type: GrantFiled: July 28, 2022Date of Patent: November 21, 2023Assignee: Shanghai North Ocean Photonics Co., Ltd.Inventors: Xinye Lou, He Huang, Tao Lin
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Patent number: 11614585Abstract: A planar optical waveguide based on two-dimensional grating includes an optical waveguide substrate which is a transparent plane-parallel plate, and a functional grating element which includes a two-dimensional grating having two grating directions with an angle of 60° in between. The two-dimensional grating is either protruded or recessed into the top surface of the optical waveguide substrate. The output image from a micro-projector can enter the optical waveguide and then gets projected to cover the entire area of the functional grating element, enabling a human eye to view the output image across a large eye-box.Type: GrantFiled: November 9, 2020Date of Patent: March 28, 2023Inventors: He Huang, Tao Lin, Xinye Lou
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Publication number: 20230029100Abstract: An optical waveguide includes an input diffractive optical element arranged for being aligned with an optical projector for diffracting the light beam therefrom, a waveguide substrate arranged for reflecting the light beam diffracted by the input diffractive optical element by means of total internal reflection, and an output diffractive optical element coupled at said waveguide substrate for partially diffracting the light beam as a diffracted light and partially transmitting the light beam as a transmitted light during the total internal reflection of the light beam within the waveguide substrate. The diffracted light is diffracted by the output diffractive optical element and is projected out of the waveguide substrate toward the user eye. The transmitted light is continuously transmitted and reflected within the waveguide substrate by the total internal reflection until the transmitted light is totally diffracted out of the waveguide substrate, so as to complete an exit pupil expansion.Type: ApplicationFiled: July 28, 2022Publication date: January 26, 2023Inventors: Xinye LOU, He HUANG, Tao LIN
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Publication number: 20220373814Abstract: Disclosed is an optical component (20) applied to a depth camera having a light source (11). The optical component (20) includes a light-homogenized element (21) having a microlens array (212) and a receiving lens (22). The light-homogenized element (21) is arranged on a light beam propagation path of the light source (11), and is used for modulating a light field emitted by the light source (11) of the depth camera to form a light beam which is not interfered to form light and dark stripes. The receiving lens (22) is adapted to a field angle of the light-homogenized element (21), and the receiving lens (22) is configured to allow at least a part of the light beam passing through the light-homogenized element (21) to enter the receiving lens (22) after being reflected by a target object. The optical component (20) is beneficial to acquiring complete and clear image information of a target object.Type: ApplicationFiled: August 18, 2020Publication date: November 24, 2022Inventors: Xinye Lou, Yuhuang Meng, He Huang, Tao Lin
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Patent number: 11435589Abstract: An optical waveguide includes an input diffractive optical element arranged for being aligned with an optical projector for diffracting the light beam therefrom, a waveguide substrate arranged for reflecting the light beam diffracted by the input diffractive optical element by means of total internal reflection, and an output diffractive optical element coupled at said waveguide substrate for partially diffracting the light beam as a diffracted light and partially transmitting the light beam as a transmitted light during the total internal reflection of the light beam within the waveguide substrate. The diffracted light is diffracted by the output diffractive optical element and is projected out of the waveguide substrate toward the user eye. The transmitted light is continuously transmitted and reflected within the waveguide substrate by the total internal reflection until the transmitted light is totally diffracted out of the waveguide substrate, so as to complete an exit pupil expansion.Type: GrantFiled: January 19, 2021Date of Patent: September 6, 2022Assignee: Shanghai North Ocean Photonics Co., Ltd.Inventors: Xinye Lou, He Huang, Tao Lin
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Publication number: 20220050301Abstract: A light modulator includes a beam homogenizer having microstructure, and a curved light transmitting substrate having at least one curving surface, wherein the beam homogenizer is arranged on the curving surface of the curved light transmitting substrate to configure the microstructure of the beam homogenizer on the curving surface of the curved light transmitting substrate.Type: ApplicationFiled: August 11, 2021Publication date: February 17, 2022Inventors: Yuhuang MENG, He HUANG, Xinye LOU, Tao LIN
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Publication number: 20210191038Abstract: A planar optical waveguide based on two-dimensional grating includes an optical waveguide substrate which is a transparent plane-parallel plate, and a functional grating element which includes a two-dimensional grating having two grating directions with an angle of 60° in between. The two-dimensional grating is either protruded or recessed into the top surface of the optical waveguide substrate. The output image from a micro-projector can enter the optical waveguide and then gets projected to cover the entire area of the functional grating element, enabling a human eye to view the output image across a large eye-box.Type: ApplicationFiled: November 9, 2020Publication date: June 24, 2021Inventors: He Huang, Tao LIN, Xinye LOU
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Publication number: 20210157148Abstract: An optical waveguide includes an input diffractive optical element arranged for being aligned with an optical projector for diffracting the light beam therefrom, a waveguide substrate arranged for reflecting the light beam diffracted by the input diffractive optical element by means of total internal reflection, and an output diffractive optical element coupled at said waveguide substrate for partially diffracting the light beam as a diffracted light and partially transmitting the light beam as a transmitted light during the total internal reflection of the light beam within the waveguide substrate. The diffracted light is diffracted by the output diffractive optical element and is projected out of the waveguide substrate toward the user eye. The transmitted light is continuously transmitted and reflected within the waveguide substrate by the total internal reflection until the transmitted light is totally diffracted out of the waveguide substrate, so as to complete an exit pupil expansion.Type: ApplicationFiled: January 19, 2021Publication date: May 27, 2021Inventors: Xinye LOU, He HUANG, Tao LIN
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Patent number: 10962787Abstract: An optical waveguide includes an input diffractive optical element arranged for being aligned with an optical projector for diffracting light beams therefrom, a waveguide substrate n, and an output diffractive optical element. Light beams diffracted by the output diffractive optical element are coupled out of the waveguide substrate towards users' eyes. The output diffractive optical element has an effective area arranged to maintain a constant output flux per unit area therein for providing an uniform image in brightness when the image is being projected out of the waveguide substrate.Type: GrantFiled: November 25, 2019Date of Patent: March 30, 2021Assignee: Shanghai North Ocean Photonics Co., Ltd.Inventors: Xinye Lou, He Huang, Tao Lin
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Patent number: 10935730Abstract: An optical waveguide includes an input diffractive optical element arranged for being aligned with an optical projector for diffracting light beams therefrom, a waveguide substrate, and an output diffractive optical element. Light diffracted by the output diffractive optical element is projected out of the waveguide substrate towards users' eyes. The output diffractive optical element has an effective area arranged to maintain a constant output flux per unit area therein for providing an uniform brightness of the light when the light is being projected out of the waveguide substrate.Type: GrantFiled: March 27, 2020Date of Patent: March 2, 2021Assignee: Shanghai North Ocean Photonics Co., Ltd.Inventors: Xinye Lou, He Huang, Tao Lin
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Patent number: 10895685Abstract: A planar optical waveguide based on two-dimensional grating includes an optical waveguide substrate which is a transparent plane-parallel plate, and a functional grating element which includes a two-dimensional grating having two grating directions with an angle of 60° in between. The two-dimensional grating is either protruded or recessed into the top surface of the optical waveguide substrate. The output image from a micro-projector can enter the optical waveguide and then gets projected to cover the entire area of the functional grating element, enabling a human eye to view the output image across a large eye-box.Type: GrantFiled: December 24, 2019Date of Patent: January 19, 2021Assignee: Shanghai North Ocean Photonics Co., Ltd.Inventors: He Huang, Tao Lin, Xinye Lou
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Publication number: 20200264367Abstract: A planar optical waveguide based on two-dimensional grating includes an optical waveguide substrate which is a transparent plane-parallel plate, and a functional grating element which includes a two-dimensional grating having two grating directions with an angle of 60° in between. The two-dimensional grating is either protruded or recessed into the top surface of the optical waveguide substrate. The output image from a micro-projector can enter the optical waveguide and then gets projected to cover the entire area of the functional grating element, enabling a human eye to view the output image across a large eye-box.Type: ApplicationFiled: December 24, 2019Publication date: August 20, 2020Inventors: He Huang, Tao LIN, Xinye LOU
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Patent number: 10551622Abstract: An input-coupler of an optical waveguide includes one or more Bragg polarization gratings for coupling light corresponding to the image in two different directions into the optical waveguide. The input-coupler splits the FOV of the image coupled into the optical waveguide into first and second portions by diffracting a portion of the light corresponding to the image in a first direction toward a first intermediate component, and diffracting a portion of the light corresponding to the image in a second direction toward a second intermediate component. An output-coupler of the waveguide combines the light corresponding to the first and second portions of the FOV, and couples the light corresponding to the combined first and second portions of the FOV out of the optical waveguide so that the light corresponding to the image and the combined first and second portions of the FOV is output from the optical waveguide.Type: GrantFiled: February 22, 2017Date of Patent: February 4, 2020Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Steven John Robbins, Joshua Owen Miller, Richard Andrew Wall, Eliezer Glik, Jani Kari Tapio Tervo, Bernard Kress, Xinye Lou
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Patent number: 10359627Abstract: An apparatus for use in replicating an image associated with an input-pupil to an output-pupil includes a planar optical waveguide including a bulk-substrate, and also including an input-coupler, an intermediate-component and an output-coupler. The input-coupler couples light corresponding to the image into the bulk-substrate and towards the intermediate-component. The intermediate-component performs horizontal or vertical pupil expansion and directs the light corresponding to the image towards the output-coupler. The output-coupler performs the other one of horizontal or vertical pupil expansion and couples light corresponding to the image, which travels from the input-coupler to the output-coupler, out of the waveguide. The apparatus further includes an adjacent planar optical component to provide a more uniform intensity distribution compared to if the adjacent planar optical component were absent.Type: GrantFiled: November 10, 2015Date of Patent: July 23, 2019Assignee: Microsoft Technology Licensing, LLCInventors: R. Andrew Wall, Scott Woltman, Steven John Robbins, Xinye Lou, Gangok Lee, Yarn Chee Poon, Tuomas Vallius, Pasi Kostamo, Tapani Levola, Yijing Fu
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Patent number: 10345903Abstract: A method of detecting eye location for a head-mounted display system includes directing positioning light to an eye of a user and detecting the positioning light reflected from the eye of the user. The method further includes determining a distance between the eye and a near-eye optic of the head-mounted display system based on attributes of the detected positioning light, and providing feedback for adjusting the distance between the eye and the near-eye optic.Type: GrantFiled: August 22, 2013Date of Patent: July 9, 2019Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Steve Robbins, Scott C. McEldowney, Xinye Lou, David D. Bohn, Quentin Simon Charles Miller, David Nister, Gerhard Schneider, Christopher Maurice Mei, Nathan Ackerman
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Patent number: 10274732Abstract: In implementations of hologram focus accommodation, a focus accommodation system is implemented for variable focus of a generated image, such as a hologram, that is displayed for viewing on a waveguide display. The focus accommodation system includes switchable polarization retarders that rotate a polarization of light of the generated image, where the light passes through the switchable polarization retarders along an imaging path in which the generated image is viewable. The focus accommodation system also includes polarization sensitive gratings alternatingly interspersed with the switchable polarization retarders. Each of the polarization sensitive gratings are configurable to diffract the light in a first polarization state and transmit the light in a second polarization state. The variable focus is adjustable to a focal distance at which a user perceives viewing the generated image as displayed by the waveguide display.Type: GrantFiled: April 6, 2017Date of Patent: April 30, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Steven John Robbins, Xinye Lou, Eliezer M. Glik
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Patent number: 10254542Abstract: Examples are disclosed that relate to a near-eye display device including a holographic display system. The holographic display system includes a light source configured to emit light that is converging or diverging, a waveguide configured to be positioned in a field of view of a user's eye, and a digital dynamic hologram configured to receive the light, and project the light into the waveguide such that the light propagates through the waveguide.Type: GrantFiled: June 15, 2017Date of Patent: April 9, 2019Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Joel Steven Kollin, Andrew Maimone, Steven John Robbins, Eliezer Glik, Andreas Georgiou, Xinye Lou
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Patent number: 10228561Abstract: An example see-through head-mounted display system includes a freeform prism and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also include an imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.Type: GrantFiled: June 25, 2013Date of Patent: March 12, 2019Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Steve Robbins, Scott McEldowney, Xinye Lou, David Nister, Drew Steedly, Quentin Simon Charles Miller, David D Bohn, James Peele Terrell, Jr., Andrew C. Goris, Nathan Ackerman
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Patent number: 10095045Abstract: An optical waveguide, for use a near-eye or heads-up display system, includes an input-coupler, an intermediate-component and an output-coupler. The input-coupler is configured to couple light corresponding to an image that is incident on the input-coupler, into the optical waveguide and towards the intermediate-component. The intermediate-component can be implemented as a Bragg polarization grating that comprises a stack of birefringent layers configured to diffract the light corresponding to the image that is incident thereon into a zero-order beam having one of right handed circular polarization or left handed circular polarization, and a first-order beam having the other one of right handed circular polarization or left handed circular polarization.Type: GrantFiled: September 12, 2016Date of Patent: October 9, 2018Assignee: Microsoft Technology Licensing, LLCInventors: Steven Robbins, Sihui He, Eliezer Glik, Xinye Lou