Patents by Inventor Fanglu Lyu
Fanglu Lyu 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: 20240142578Abstract: A lidar light source includes an array of edge-emitting lasers (EELs) and a cylindrical lens. Each of the EELs includes an active region. Light emitting ports of the plurality of active regions are disposed adjacent to each other. The plurality of active regions share a cathode and include separate anodes, or share an anode and include separate cathodes. The cylindrical lens is configured to collimate light beams emitted from the array of EELs in a fast axis direction, and fuse the light beams emitted through the light emitting ports into a uniform light beam on a target surface.Type: ApplicationFiled: September 1, 2023Publication date: May 2, 2024Inventors: Ruibin HUANG, Shizhi LYU, Li ZHU, Fanglu LYU, Bo WANG
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Patent number: 11914073Abstract: A waveguide comprises a first surface and a second surface. The first surface comprises a first plurality of grating structures. The first surface other than the first plurality of grating structures comprises a first reflective layer. The second surface comprises a second reflective layer. The waveguide is configured to guide an in-coupled light beam to undergo reflections between the first reflective layer and the second reflective layer. The first plurality of grating structures are configured to disrupt the reflections to cause at least a portion of the in-coupled light beam to couple out of the waveguide and project from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams.Type: GrantFiled: August 29, 2022Date of Patent: February 27, 2024Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventor: Fanglu Lyu
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Publication number: 20230194839Abstract: An internal-reflective telecentric lens system includes a first lens assembly, a reflector, and a second lens assembly. The first lens assembly includes a first lens. The second lens assembly includes a second lens, a third lens, and a fourth lens, that are disposed in sequence along a light path. The first lens assembly is configured to receive and output one or more light beams towards the reflector. The reflector is configured to reflect the light beams towards the second lens assembly. The second lens assembly is configured to receive and converge the light beams reflected by the reflector at a diaphragm between the second lens and the third lens, and transmit the light beams past the diaphragm through the third and the fourth lenses for imaging.Type: ApplicationFiled: February 16, 2023Publication date: June 22, 2023Inventors: Tianshu ZHANG, Ruibin Huang, Li Zhu, Fanglu Lyu, Bo Wang
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Patent number: 11592607Abstract: A waveguide comprises a first surface and a second surface. The first surface comprises a first plurality of grating structures. The waveguide is configured to guide an in-coupled light beam to undergo total internal reflection between the first surface and the second surface. The first grating structures are configured to disrupt the total internal reflection to cause at least a portion of the in-coupled light beam to couple out of the waveguide and project from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams, the out-coupled light beams being configured to form an array of dots on a surface where the out-coupled light beams are projected on.Type: GrantFiled: September 17, 2019Date of Patent: February 28, 2023Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventor: Fanglu Lyu
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Patent number: 11586023Abstract: An internal-reflective telecentric lens system includes a first lens assembly, a reflector, and a second lens assembly. The first lens assembly includes a first lens. The second lens assembly includes a second lens, a third lens, and a fourth lens, that are disposed in sequence along a light path. The first lens assembly is configured to receive and output one or more light beams towards the reflector. The reflector is configured to reflect the light beams towards the second lens assembly. The second lens assembly is configured to receive and converge the light beams reflected by the reflector at a diaphragm between the second lens and the third lens, and transmit the light beams past the diaphragm through the third and the fourth lenses for imaging.Type: GrantFiled: November 25, 2020Date of Patent: February 21, 2023Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventors: Tianshu Zhang, Ruibin Huang, Li Zhu, Fanglu Lyu, Bo Wang
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Publication number: 20220404469Abstract: A waveguide comprises a first surface and a second surface. The first surface comprises a first plurality of grating structures. The first surface other than the first plurality of grating structures comprises a first reflective layer. The second surface comprises a second reflective layer. The waveguide is configured to guide an in-coupled light beam to undergo reflections between the first reflective layer and the second reflective layer. The first plurality of grating structures are configured to disrupt the reflections to cause at least a portion of the in-coupled light beam to couple out of the waveguide and project from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams.Type: ApplicationFiled: August 29, 2022Publication date: December 22, 2022Inventor: Fanglu LYU
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Patent number: 11460547Abstract: A waveguide comprises a first surface and a second surface. The first surface comprises a first plurality of grating structures. The first surface other than the first plurality of grating structures comprises a first reflective layer. The second surface comprises a second reflective layer. The waveguide is configured to guide an in-coupled light beam to undergo reflections between the first reflective layer and the second reflective layer. The first plurality of grating structures are configured to disrupt the reflections to cause at least a portion of the in-coupled light beam to couple out of the waveguide and project from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams.Type: GrantFiled: March 17, 2020Date of Patent: October 4, 2022Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventor: Fanglu Lyu
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Patent number: 11422262Abstract: A system including: a light source, a switchable diffuser, a structured light detector, and a ToF detector. The light source and switchable diffuser are controlled to operate in concert (together, and/or with other optical and electrical elements of the system) to project pulses of collimated beams of light (interleaved between pulses of flood light) during a single image capture period, the pulses of collimated beams of light being resolvable by the structured light detector and the ToF detector within the same image capture period.Type: GrantFiled: February 14, 2020Date of Patent: August 23, 2022Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventors: Li Zhu, Fanglu Lyu, Bo Wang
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Patent number: 11418689Abstract: Display devices and electronic apparatuses with 3D camera modules are provided. An exemplary device comprises a display and a 3D camera module, wherein the 3D camera module comprises a depth camera module disposed at a backlight side of the display; the depth camera module comprises an edge-emitting laser and an imaging module; the edge-emitting laser is configured for emitting laser light, for the emitted laser light to penetrate the display to reach an object; and the imaging module is configured for receiving laser light reflected by the object that penetrates the display, and obtaining a depth image of the object based on the reflected laser light.Type: GrantFiled: January 14, 2021Date of Patent: August 16, 2022Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventors: Li Zhu, Fanglu Lyu, Bo Wang
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Publication number: 20220066181Abstract: An internal-reflective telecentric lens system includes a first lens assembly, a reflector, and a second lens assembly. The first lens assembly includes a first lens. The second lens assembly includes a second lens, a third lens, and a fourth lens, that are disposed in sequence along a light path. The first lens assembly is configured to receive and output one or more light beams towards the reflector. The reflector is configured to reflect the light beams towards the second lens assembly. The second lens assembly is configured to receive and converge the light beams reflected by the reflector at a diaphragm between the second lens and the third lens, and transmit the light beams past the diaphragm through the third and the fourth lenses for imaging.Type: ApplicationFiled: November 25, 2020Publication date: March 3, 2022Inventors: Tianshu ZHANG, Ruibin HUANG, Li ZHU, Fanglu LYU, Bo WANG
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Publication number: 20210136268Abstract: Display devices and electronic apparatuses with 3D camera modules are provided. An exemplary device comprises a display and a 3D camera module, wherein the 3D camera module comprises a depth camera module disposed at a backlight side of the display; the depth camera module comprises an edge-emitting laser and an imaging module; the edge-emitting laser is configured for emitting laser light, for the emitted laser light to penetrate the display to reach an object; and the imaging module is configured for receiving laser light reflected by the object that penetrates the display, and obtaining a depth image of the object based on the reflected laser light.Type: ApplicationFiled: January 14, 2021Publication date: May 6, 2021Inventors: Li Zhu, Fanglu Lyu, Bo Wang
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Patent number: 10931860Abstract: Display devices and electronic apparatuses with 3D camera modules are provided. An exemplary device comprises a display and a 3D camera module, wherein the 3D camera module comprises a depth camera module disposed at a backlight side of the display; the depth camera module comprises an edge-emitting laser and an imaging module; the edge-emitting laser is configured for emitting laser light, for the emitted laser light to penetrate the display to reach an object; and the imaging module is configured for receiving laser light reflected by the object that penetrates the display, and obtaining a depth image of the object based on the reflected laser light.Type: GrantFiled: October 30, 2019Date of Patent: February 23, 2021Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventors: Li Zhu, Fanglu Lyu, Bo Wang
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Publication number: 20200275000Abstract: Display devices and electronic apparatuses with 3D camera modules are provided. An exemplary device comprises a display and a 3D camera module, wherein the 3D camera module comprises a depth camera module disposed at a backlight side of the display; the depth camera module comprises an edge-emitting laser and an imaging module; the edge-emitting laser is configured for emitting laser light, for the emitted laser light to penetrate the display to reach an object; and the imaging module is configured for receiving laser light reflected by the object that penetrates the display, and obtaining a depth image of the object based on the reflected laser light.Type: ApplicationFiled: October 30, 2019Publication date: August 27, 2020Inventors: Li ZHU, Fanglu LYU, Bo WANG
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Publication number: 20200241143Abstract: A system including: a light source, a switchable diffuser, a structured light detector, and a ToF detector. The light source and switchable diffuser are controlled to operate in concert (together, and/or with other optical and electrical elements of the system) to project pulses of collimated beams of light (interleaved between pulses of flood light) during a single image capture period, the pulses of collimated beams of light being resolvable by the structured light detector and the ToF detector within the same image capture period.Type: ApplicationFiled: February 14, 2020Publication date: July 30, 2020Inventors: Li ZHU, Fanglu LYU, Bo WANG
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Publication number: 20200217933Abstract: A waveguide comprises a first surface and a second surface. The first surface comprises a first plurality of grating structures. The first surface other than the first plurality of grating structures comprises a first reflective layer. The second surface comprises a second reflective layer. The waveguide is configured to guide an in-coupled light beam to undergo reflections between the first reflective layer and the second reflective layer. The first plurality of grating structures are configured to disrupt the reflections to cause at least a portion of the in-coupled light beam to couple out of the waveguide and project from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams.Type: ApplicationFiled: March 17, 2020Publication date: July 9, 2020Inventor: Fanglu LYU
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Patent number: 10690846Abstract: A light projecting system comprises: a waveguide comprising a first surface, a second surface, and a fourth surface, at least one of the first surface or the second surface comprising a first plurality of grating structures; a light source coupling light into the waveguide to form an in-coupled light beam, wherein: each of the first grating structures is configured to disrupt the total internal reflection to cause at least a portion of the in-coupled light beam to couple out of the waveguide, and a remainder beam of the in-coupled light beam undergoing the total internal reflection being coupled out of the waveguide after the out-coupling at each of the first grating structures; a detector configured to receive and measure the remainder beam; and a processor coupled to the detector and configured to determine if a dangerous condition occurs based on the measured remainder beam.Type: GrantFiled: October 24, 2018Date of Patent: June 23, 2020Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventors: Fanglu Lyu, Yi Rao
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Patent number: 10690752Abstract: A waveguide comprises a first surface and a second surface. The first surface comprises a first plurality of grating structures. The first surface other than the first plurality of grating structures comprises a first reflective layer. The second surface comprises a second reflective layer. The waveguide is configured to guide an in-coupled light beam to undergo reflections between the first reflective layer and the second reflective layer. The first plurality of grating structures are configured to disrupt the reflections to cause at least a portion of the in-coupled light beam to couple out of the waveguide and project from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams.Type: GrantFiled: September 17, 2019Date of Patent: June 23, 2020Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventor: Fanglu Lyu
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Patent number: 10641942Abstract: A waveguide comprises a first surface and a second surface. The second surface comprises a first plurality of grating structures. The waveguide is configured to guide an in-coupled light beam to undergo total internal reflection between the first surface and the second surface. The grating structures are configured to disrupt the total internal reflection to cause at least a portion of the in-coupled light beam to couple out of the waveguide from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams. The waveguide further comprises a reflective layer disposed on the second surface and covering the first grating structures.Type: GrantFiled: July 16, 2018Date of Patent: May 5, 2020Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventor: Fanglu Lyu
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Publication number: 20200132928Abstract: A light projecting system comprises: a waveguide comprising a first surface, a second surface, and a fourth surface, at least one of the first surface or the second surface comprising a first plurality of grating structures; a light source coupling light into the waveguide to form an in-coupled light beam, wherein: each of the first grating structures is configured to disrupt the total internal reflection to cause at least a portion of the in-coupled light beam to couple out of the waveguide, and a remainder beam of the in-coupled light beam undergoing the total internal reflection being coupled out of the waveguide after the out-coupling at each of the first grating structures; a detector configured to receive and measure the remainder beam; and a processor coupled to the detector and configured to determine if a dangerous condition occurs based on the measured remainder beam.Type: ApplicationFiled: October 24, 2018Publication date: April 30, 2020Inventors: Fanglu LYU, Yi RAO
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Patent number: 10585194Abstract: A system including: a light source, a switchable diffuser, a structured light detector, and a ToF detector. The light source and switchable diffuser are controlled to operate in concert (together, and/or with other optical and electrical elements of the system) to project pulses of collimated beams of light (interleaved between pulses of flood light) during a single image capture period, the pulses of collimated beams of light being resolvable by the structured light detector and the ToF detector within the same image capture period.Type: GrantFiled: April 9, 2019Date of Patent: March 10, 2020Assignee: Shenzhen Guangjian Technology Co., Ltd.Inventors: Li Zhu, Fanglu Lyu, Bo Wang