Patents by Inventor Stefanie Hartmann
Stefanie Hartmann 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: 11946873Abstract: A detection device for detecting contamination of an optical element. The detection device includes a coupling device, including a first coupling element for coupling light of at least one wavelength from a light source into the optical element, and a second coupling element for coupling light out from the optical element, at least one of the coupling elements including a hologram, and having a detector for acquiring the coupled-out light.Type: GrantFiled: January 15, 2019Date of Patent: April 2, 2024Assignee: ROBERT BOSCH GMBHInventors: Annette Frederiksen, Stefanie Hartmann, Tobias Peterseim
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Patent number: 11592525Abstract: A filter device for an optical sensor, including a hologram having a defined number of holographic functions, which are developed in such a way that the filter device blocks optical radiation that impinges upon the filter device from a defined first solid angle and optical radiation that impinges upon the filter device from a defined second solid angle is able to pass through the filter device.Type: GrantFiled: May 28, 2018Date of Patent: February 28, 2023Assignee: Robert Bosch GmbHInventors: Annette Frederiksen, Simone Hoeckh, Stefanie Hartmann
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Patent number: 11525905Abstract: A LIDAR device for detecting an object in the surroundings, including at least one transmitter for emitting electromagnetic radiation into the surroundings; at least one rotating deflection unit for deflecting the emitted electromagnetic radiation; at least one detection lens system for receiving electromagnetic radiation which has been reflected by the object in the surroundings, and for directing the received electromagnetic radiation at a first detector unit; at least one second detector unit; and at least one diffractive optical element. The at least one diffractive optical element includes at least one first diffraction area and at least one second diffraction area, an at least first diffraction efficiency assigned to the at least first diffraction area being different from an at least second diffraction efficiency assigned to the at least second diffraction area.Type: GrantFiled: July 30, 2019Date of Patent: December 13, 2022Assignee: Robert Bosch GmbHInventors: Annette Frederiksen, Stefanie Hartmann
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Patent number: 11454708Abstract: A LIDAR device is described including a beam source for emitting electromagnetic radiation in an emission path, in which at least one holographic optical element is situated for diffracting the emitted electromagnetic radiation, and a detector for detecting incident electromagnetic radiation in a reception path, an optical bandpass filter being connected upstream from the detector. Depending on a wavelength of the emitted electromagnetic radiation, the holographic optical element effectuates a diffraction by at least one angle of reflection which is matched to the shift of the wavelength of the incident electromagnetic radiation with the aid of the bandpass filter.Type: GrantFiled: October 15, 2019Date of Patent: September 27, 2022Assignee: Robert Bosch GmbHInventors: Annette Frederiksen, Stefan Spiessberger, Stefanie Hartmann
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Patent number: 11402474Abstract: A compensation device for a biaxial LIDAR system includes two holographic optical elements, which are locatable between a receiving optical system and a detector element, and which are designed to compensate for a parallax effect of the biaxial LIDAR system, incident light being guidable onto the detector element with the aid of the two holographic optical elements.Type: GrantFiled: June 24, 2019Date of Patent: August 2, 2022Assignee: Robert Bosch GmbHInventors: Annette Frederiksen, Stefanie Hartmann
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Patent number: 11368673Abstract: A device for detecting a soiling of a transparent cover of at least one transmitting window and/or one receiving window of an optical sensor. The device includes at least one hologram structure, an image sensor, and a processing unit. The at least one hologram structure is designed to at least partially deflect light beams incident through the transparent cover, or light beams reflected by an inner side of the transparent cover, in the direction of the image sensor. The image sensor is designed to detect at least one image signal as a function of the deflected light beams, and the processing unit is designed to detect a soiling of the transparent cover as a function of the at least one detected image signal. An optical sensor including the device, and a method for detecting a soiling of the transparent cover, are also described.Type: GrantFiled: June 3, 2019Date of Patent: June 21, 2022Assignee: Robert Bosch GmbHInventors: Annette Frederiksen, Stefanie Hartmann
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Patent number: 11255953Abstract: An optical element for a lidar system. The optical element includes an expanding optical system configured to expand received light beams, and a projection lens configured to receive and parallelize each of the expanded light beams from the expanding optical system. The expanding optical system and/or the projection lens is formed as a holographic optical element.Type: GrantFiled: October 4, 2017Date of Patent: February 22, 2022Assignee: Robert Bosch GmbHInventors: Annette Frederiksen, Stefanie Hartmann
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Publication number: 20210063318Abstract: A detection device for detecting contamination of an optical element. The detection device includes a coupling device, including a first coupling element for coupling light of at least one wavelength from a light source into the optical element, and a second coupling element for coupling light out from the optical element, at least one of the coupling elements including a hologram, and having a detector for acquiring the coupled-out light.Type: ApplicationFiled: January 15, 2019Publication date: March 4, 2021Inventors: Annette Frederiksen, Stefanie Hartmann, Tobias Peterseim
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Publication number: 20210067769Abstract: A device for detecting a soiling of a transparent cover of at least one transmitting window and/or one receiving window of an optical sensor. The device includes at least one hologram structure, an image sensor, and a processing unit. The at least one hologram structure is designed to at least partially deflect light beams incident through the transparent cover, or light beams reflected by an inner side of the transparent cover, in the direction of the image sensor. The image sensor is designed to detect at least one image signal as a function of the deflected light beams, and the processing unit is designed to detect a soiling of the transparent cover as a function of the at least one detected image signal. An optical sensor including the device, and a method for detecting a soiling of the transparent cover, are also described.Type: ApplicationFiled: June 3, 2019Publication date: March 4, 2021Inventors: Annette Frederiksen, Stefanie Hartmann
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Patent number: 10914839Abstract: An optical assembly, for receiving light waves, includes a receiving optical system for focusing at least one incoming light wave onto a surface of a detector for detecting the at least one light wave, at least one diffractive optical element with a planar extension being situated between the receiving optical system and the detector, and the at least one diffractive optical element including a surface with a surface structure with at least one optical function. Furthermore, a LIDAR device includes an optical assembly of this type.Type: GrantFiled: January 15, 2018Date of Patent: February 9, 2021Assignee: Robert Bosch GmbHInventors: Stefanie Hartmann, Annette Frederiksen, Tobias Graf
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Publication number: 20200174099Abstract: A filter device for an optical sensor, including a hologram having a defined number of holographic functions, which are developed in such a way that the filter device blocks optical radiation that impinges upon the filter device from a defined first solid angle and optical radiation that impinges upon the filter device from a defined second solid angle is able to pass through the filter device.Type: ApplicationFiled: May 28, 2018Publication date: June 4, 2020Inventors: Annette Frederiksen, Simone Hoeckh, Stefanie Hartmann
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Publication number: 20200124710Abstract: A LIDAR device is described including a beam source for emitting electromagnetic radiation in an emission path, in which at least one holographic optical element is situated for diffracting the emitted electromagnetic radiation, and a detector for detecting incident electromagnetic radiation in a reception path, an optical bandpass filter being connected upstream from the detector. Depending on a wavelength of the emitted electromagnetic radiation, the holographic optical element effectuates a diffraction by at least one angle of reflection which is matched to the shift of the wavelength of the incident electromagnetic radiation with the aid of the bandpass filter.Type: ApplicationFiled: October 15, 2019Publication date: April 23, 2020Inventors: Annette Frederiksen, Stefan Spiessberger, Stefanie Hartmann
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Publication number: 20200041615Abstract: A LIDAR device for scanning a scanning area is described, including a transmitting unit encompassing at least one radiation source for generating electromagnetic beams, encompassing at least one optical transmission system for shaping and emitting the generated electromagnetic beams, and including a receiver unit encompassing an optical receiving system for receiving incoming electromagnetic beams and for deflecting the incoming electromagnetic beams to at least one detector, the transmitting unit and the receiver unit being situated in a housing which is radiation-transparent at least in some areas, the transmitting unit including at least one diffuser element in a beam path of the emitted electromagnetic beams. Moreover, a method for manufacturing a diffuser element for a LIDAR device is provided.Type: ApplicationFiled: July 29, 2019Publication date: February 6, 2020Inventors: Annette Frederiksen, Stefanie Hartmann
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Publication number: 20200041625Abstract: A LIDAR device for detecting an object in the surroundings, including at least one transmitter for emitting electromagnetic radiation into the surroundings; at least one rotating deflection unit for deflecting the emitted electromagnetic radiation; at least one detection lens system for receiving electromagnetic radiation which has been reflected by the object in the surroundings, and for directing the received electromagnetic radiation at a first detector unit; at least one second detector unit; and at least one diffractive optical element. The at least one diffractive optical element includes at least one first diffraction area and at least one second diffraction area, an at least first diffraction efficiency assigned to the at least first diffraction area being different from an at least second diffraction efficiency assigned to the at least second diffraction area.Type: ApplicationFiled: July 30, 2019Publication date: February 6, 2020Inventors: Annette Frederiksen, Stefanie Hartmann
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Publication number: 20190391241Abstract: A compensation device for a biaxial LIDAR system includes two holographic optical elements, which are locatable between a receiving optical system and a detector element, and which are designed to compensate for a parallax effect of the biaxial LIDAR system, incident light being guidable onto the detector element with the aid of the two holographic optical elements.Type: ApplicationFiled: June 24, 2019Publication date: December 26, 2019Inventors: Annette Frederiksen, Stefanie Hartmann
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Publication number: 20190346569Abstract: An optical assembly, for receiving light waves, includes a receiving optical system for focusing at least one incoming light wave onto a surface of a detector for detecting the at least one light wave, at least one diffractive optical element with a planar extension being situated between the receiving optical system and the detector, and the at least one diffractive optical element including a surface with a surface structure with at least one optical function. Furthermore, a LIDAR device includes an optical assembly of this type.Type: ApplicationFiled: January 15, 2018Publication date: November 14, 2019Inventors: Stefanie Hartmann, Annette Frederiksen, Tobias Graf
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Publication number: 20190219676Abstract: An optical element for a lidar system, having: an expanding optical system and a projection lens, the expanding optical system and/or the projection lens being formed by a holographic optical element.Type: ApplicationFiled: October 4, 2017Publication date: July 18, 2019Inventors: Annette Frederiksen, Stefanie Hartmann
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Publication number: 20190178990Abstract: An optical set-up for a LiDAR system for the optical detection of a field of view, in particular for an operating device, a vehicle or the like, in which an optical receiver system and an optical transmitter system are designed at least on the field of view side having essentially coaxial optical axes and have a common optical deflection system, and on the detector side an optical detector system is designed and has an arrangement for directing incident light—in particular from the field of view—directly via the optical deflection system onto a detector device.Type: ApplicationFiled: July 25, 2017Publication date: June 13, 2019Inventors: Siegwart Bogatscher, Annette Frederiksen, Hans-Jochen Schwarz, Jan Sparbert, Klaus Stoppel, Reiner Schnitzer, Stefanie Hartmann, Thomas Fersch, Thorsten Balslink