Patents by Inventor Olov VON HOFSTEN
Olov VON HOFSTEN 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: 11579257Abstract: A LiDAR apparatus includes a first substrate, a laser diode on a surface of the substrate for outputting light, a fast axis collimator (FAC) lens receiving the light and generating an at least partially collimated light beam, a polarizing beam splitter optically coupled to the FAC lens, at least a portion of the light beam passing through the polarizing beam splitter to a region being observed by the LiDAR apparatus. An opaque coating on the back side of an aperture element coupled to the polarizing beam splitter is patterned to provide a transparent aperture. At least a portion of light returning to the LiDAR apparatus from the region being observed is directed by the polarizing beam splitter, through the transparent aperture in the opaque coating on the aperture element, through the at least partially reflective optical element to an optical detector mounted on the substrate.Type: GrantFiled: August 16, 2019Date of Patent: February 14, 2023Assignee: VEONEER US, LLCInventors: Bernard de Mersseman, Desmond Fleming, Olov Von Hofsten
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Publication number: 20220381886Abstract: A detection system, and method of using the same, for a vehicle in an environment. The system includes a line detector with a plurality of optical receiver elements arranged in a line. The optical receiver elements receive light from the environment and the line detector captures an image of the environment in a series of line scans. An optical scanning element rotates around an axis to change a field of view of the line detector with respect to the environment. The optical scanning element has a glass body defined by four glass sides and a reflective member within the glass body.Type: ApplicationFiled: May 25, 2021Publication date: December 1, 2022Applicant: Veoneer US, LLCInventors: Bernard de Mersseman, Olov von Hofsten
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Patent number: 11474218Abstract: A LiDAR apparatus includes a first substrate and a unitary optical element mounted thereon. The unitary optical element includes: (i) a fast axis collimator (FAC) lens receiving light from a laser diode source and generating therefrom a collimated light beam; (ii) a polarizing beam splitter optically coupled to the FAC lens, at least a portion of the collimated light beam passing through the polarizing beam splitter to a region being observed by the LiDAR apparatus; (iii) an aperture element optically coupled to the polarizing beam splitter; and (iv) an opaque coating formed on a back side of the aperture element, the opaque coating being patterned to provide a transparent aperture. At least of portion of light returning to the LiDAR apparatus from the region being observed is directed by the polarizing beam splitter, through the transparent aperture in the opaque coating on the aperture element, to an optical detector.Type: GrantFiled: July 15, 2019Date of Patent: October 18, 2022Assignee: Veoneer US, LLCInventors: Bernard de Mersseman, Desmond Fleming, Olov Von Hofsten
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Publication number: 20220221559Abstract: A LiDAR system and method of detecting objects using same includes a plurality of coaxially arranged LiDAR transmitters and detectors. A movable optical element redirects optical signals between the LiDAR transmitters and an external region and reference optical element. The detectors receive returning optical signals after they have deflected off objects in the surrounding environment to generate an electrical signal. A reference signal is generated from the optical signals directed towards the reference optical element. The system determines the position of an object in the external region by adjusting the electrical signal using the reference signal.Type: ApplicationFiled: January 14, 2021Publication date: July 14, 2022Applicant: Veoneer US, Inc.Inventors: Bernard DeMersseman, Afrah Naik, Winston Li, Olov Von Hofsten
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Publication number: 20210018602Abstract: A LiDAR apparatus includes a first substrate and a unitary optical element mounted thereon. The unitary optical element includes: (i) a fast axis collimator (FAC) lens receiving light from a laser diode source and generating therefrom a collimated light beam; (ii) a polarizing beam splitter optically coupled to the FAC lens, at least a portion of the collimated light beam passing through the polarizing beam splitter to a region being observed by the LiDAR apparatus; (iii) an aperture element optically coupled to the polarizing beam splitter; and (iv) an opaque coating formed on a back side of the aperture element, the opaque coating being patterned to provide a transparent aperture. At least of portion of light returning to the LiDAR apparatus from the region being observed is directed by the polarizing beam splitter, through the transparent aperture in the opaque coating on the aperture element, to an optical detector.Type: ApplicationFiled: July 15, 2019Publication date: January 21, 2021Applicant: Veoneer US, Inc.Inventors: Bernard de Mersseman, Desmond Fleming, Olov Von Hofsten
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Publication number: 20210018600Abstract: A LiDAR apparatus includes a first substrate, a laser diode on a surface of the substrate for outputting light, a fast axis collimator (FAC) lens receiving the light and generating an at least partially collimated light beam, a polarizing beam splitter optically coupled to the FAC lens, at least a portion of the light beam passing through the polarizing beam splitter to a region being observed by the LiDAR apparatus. An opaque coating on the back side of an aperture element coupled to the polarizing beam splitter is patterned to provide a transparent aperture. At least a portion of light returning to the LiDAR apparatus from the region being observed is directed by the polarizing beam splitter, through the transparent aperture in the opaque coating on the aperture element, through the at least partially reflective optical element to an optical detector mounted on the substrate.Type: ApplicationFiled: August 16, 2019Publication date: January 21, 2021Applicant: Veoneer US, Inc.Inventors: Bernard de Mersseman, Desmond Fleming, Olov Von Hofsten
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Publication number: 20200081129Abstract: A detection system for a vehicle in an environment includes a reflective member configured to rotate about a first axis, the reflective member having a plurality of reflective sides. The detection system has a LiDAR system with at least one light transmitter and at least one light receiver. A wedge mirror deflects light between the LiDAR system and the reflective member to change the field of view of the LiDAR system in an elevation direction and in an azimuth direction. The reflective member is positioned such that rotation of the reflective member changes the field of view of the LiDAR system in an azimuth direction.Type: ApplicationFiled: December 21, 2018Publication date: March 12, 2020Inventors: Bernard de Mersseman, Peter Hansson, Emil Hallstig, Olov Von Hofsten
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Patent number: 9785287Abstract: A touch-sensitive aparatus operates by light frustration (FTIR) and comprises a light transmissive panel (1) with a front surface (5) and a rear surface (6). Light emitters (2) are optically coupled to the panel (1) at entry ports along a periphery region of the panel (1), and light detectors (3) are optically coupled to the panel (1) at exit ports along the periphery region for detecting light transmitted inside the panel (1). At least one optical sheet (20) is provided on the rear surface (6) in the periphery region. In an outcoupling installation, the light detectors (3) are arranged at the respective optical sheet (20) to receive, on a respective light-sensitive surface (3A); light from the optical sheet (20), and each light detector (3) is arranged with the light-sensitive surface (3A) essentially perpendicular to the rear surface (6).Type: GrantFiled: December 17, 2013Date of Patent: October 10, 2017Assignee: FLATFROG LABORATORIES ABInventors: Hakan Bergstrom, Ola Wassvik, Thomas Craven-Bartle, Olov Von Hofsten, Bjorn Le Normand, Leif Ek
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Publication number: 20150331544Abstract: A touch-sensitive apparatus operates by light frustration (FTIR) and comprises a light transmissive panel (1) with a front surface (5) and a rear surface (6). Light emitters (2) are optically coupled to the panel (1) at entry ports along a periphery region of the panel (1), and light detectors (3) are optically coupled to the panel (1) at exit ports along the periphery region for detecting light transmitted inside the panel (1). At least one optical sheet (20) is provided on the rear surface (6) in the periphery region. In an outcoupling installation, the light detectors (3) are arranged at the respective optical sheet (20) to receive, on a respective light-sensitive surface (3A); light from the optical sheet (20), and each light detector (3) is arranged with the light-sensitive surface (3A) essentially perpendicular to the rear surface (6).Type: ApplicationFiled: December 17, 2013Publication date: November 19, 2015Inventors: Hakan BERGSTROM, Ola WASSVIK, Thomas CRAVEN-BARTLE, Olov VON HOFSTEN, Bjorn LE NORMAND, Leif EK