Patents by Inventor Stefan Spiessberger
Stefan Spiessberger 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: 20240094348Abstract: An operating method for a LiDAR system, in particular of the compressed sensing type. On the emission side, primary light is emitted in an unstructured manner into a visual field for the illumination thereof, and on the receiving side, light from the visual field is received as secondary light, is converted by light structuring using a predefined, fixed, and temporally constant, matrix-like pattern, into restructured secondary light having at least one matrix-like light pattern consisting of columnar patterns, and for detection, is respectively imaged column by column using the columnar patterns on an associated common detector element of a detector arrangement and detected as a whole.Type: ApplicationFiled: November 4, 2020Publication date: March 21, 2024Inventors: Norman Haag, Stefan Spiessberger
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Patent number: 11802941Abstract: A sensor device for detecting an object with the aid of light of at least one wavelength, including a transmitting unit for emitting light using at least one light source and a receiving unit for receiving light, the light emitted by the transmitting unit in the plane perpendicular to the transmit path having the form of a circumferential surface, which includes an inner area to which light is not applied, an optical element being situated in a shared part of the transmit and receive paths, in such a way that the cross-section surface of the optical element in the plane perpendicular to the transmit path essentially completely overlaps with its cross-section surface the inner area to which light is not applied.Type: GrantFiled: July 27, 2018Date of Patent: October 31, 2023Assignee: ROBERT BOSCH GMBHInventors: Annemarie Holleczek, Mustafa Kamil, Stefan Spiessberger, Tobias Peterseim
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Publication number: 20230288539Abstract: An optical system. The optical system includes: a light source, a base holder comprising first and second fastening regions, and an optical unit comprising third and fourth fastening regions. The optical unit is fastened to the base holder in a joining direction oriented transversely to the fastening regions, such that the first fastening region is glued to the third fastening region and the second fastening region is glued to the fourth fastening region. The light source is fastened in a predefined position and with a predefined orientation relative to the base holder. The third and fourth fastening regions are provided on the optical unit so as to be spaced apart from one another in the joining direction between the optical unit and the base holder. The optical unit is configured to influence a light beam emitted by the light source toward the optical unit.Type: ApplicationFiled: August 10, 2021Publication date: September 14, 2023Inventors: Alf Neustadt, Markus Rohrbach, Ruben Wahl, Stefan Spiessberger
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Publication number: 20230228849Abstract: A lidar sensor. The lidar sensor includes a light source and a fly eye lens arrangement having a first microlens arrangement and a second microlens arrangement. The first microlens arrangement comprises a plurality of identical first microlenses stacked along a first axis. The second microlens arrangement comprises a plurality of identical second microlenses stacked along a second axis. The fly-eye lens arrangement is configured to generate, based on a light generated by the light source, a scanning beam for scanning an environment of the lidar sensor. The scanning beam includes a first sub-beam generated by the first microlens arrangement and a second sub-beam generated by the second microlens arrangement. Predefined optical properties of the first microlens arrangement and predefined optical properties of the second microlens arrangement differ from one another in order to generate a scanning beam having a predefined light intensity distribution.Type: ApplicationFiled: January 18, 2023Publication date: July 20, 2023Inventors: Albert Groening, Andre Albuquerque, Frederik Ante, Stefan Spiessberger
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Publication number: 20230126182Abstract: A LIDAR system. The LIDAR system includes a light source and a bandpass filter which is situated in a reception path of the LIDAR system. The reception path being configured to receive light emitted by the light source which was reflected in surroundings of the LIDAR system. A spectral transmission width of the bandpass filter is configured to be narrower than a spectral emission width of a light beam emitted by the light source. A vehicle, which includes a LIDAR system, is also provided.Type: ApplicationFiled: March 12, 2021Publication date: April 27, 2023Inventors: Frederik Ante, Markus Hippler, Markus Kienzle, Remigius Has, Stefan Spiessberger
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Patent number: 11585938Abstract: A LIDAR system includes a monolithic frequency-stabilized semiconductor laser having a linear thermal wavelength shift and a bandpass filter that is configured to effectuate a thermal wavelength shift that does not deviate from the linear thermal wavelength shift of the semiconductor laser by more than 40%, and a temperature stabilization of the semiconductor laser can be dispensed with by the use of the invention. The LIDAR system can be provided in a control system that includes a control unit that controls obstacle avoidance of a motor vehicle based on an obstacle distance determined by the LIDAR system.Type: GrantFiled: January 31, 2019Date of Patent: February 21, 2023Assignee: Robert Bosch GmbHInventors: Nico Heussner, Stefan Spiessberger
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Patent number: 11579251Abstract: A coaxial LiDAR system having a reduced adjustment complexity and reduced installation space includes a transmitter unit designed to emit LiDAR radiation, a receiver unit designed to detect incident LiDAR radiation, and an optical system for imaging LiDAR radiation, the radiation emitted by the transmitter unit and the radiation from the optical system incident upon the receiver unit being transmitted in collinear form, the emitting surface of the transmitter unit being situated outside of the focus of the imaging optical system.Type: GrantFiled: June 13, 2019Date of Patent: February 14, 2023Assignee: Robert Bosch GmbHInventors: Stefan Spiessberger, Frederik Ante, Mazyar Sabbar
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Patent number: 11579261Abstract: A transmitter unit for emitting radiation into the surrounding area, including at least one semiconductor laser, which has at least one first emitter possessing a first section and a second section; and at least one control unit for controlling the semiconductor laser. The control unit is configured to apply a first supply variable to the first section of the at least one emitter, and to apply a second supply variable differing from the first supply variable, to the second section of the at least one emitter.Type: GrantFiled: May 9, 2018Date of Patent: February 14, 2023Assignee: Robert Bosch GmbHInventors: Martin Kastner, Hans-Jochen Schwarz, Stefan Spiessberger
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Publication number: 20230038495Abstract: A transmission unit for a LIDAR device for emitting collimated beams into a scanning area. The transmission unit includes at least one beam source for generating beams in the form of a beam bundle, the beam source being designed as a surface emitter or an emitter array, and a transmission optical unit including at least one lens. The transmission unit includes a diaphragm including at least one aperture, which is configured to delimit a cross section of the beam bundle of the generated beams in a horizontal direction and/or a vertical direction. The at least one lens of the transmission optical unit is situated downstream from the diaphragm in the emission direction of the beams. A LIDAR device is also described.Type: ApplicationFiled: January 11, 2021Publication date: February 9, 2023Inventors: Andre Albuquerque, Anne Schumann, Dionisio Pereira, Markus Hippler, Maximilian Amberger, Stefan Spiessberger, Albert Groening
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Patent number: 11561285Abstract: A transmitting unit of a LIDAR device includes at least two radiation sources for generating and emitting punctiform or linear electromagnetic beams into a scanning range, at least one of the radiation sources including an operating temperature settable as a function of an emission angle of the electromagnetic beams generated by the at least one radiation source. The different operating temperatures can generate beams having angle-dependent emission wavelengths, which can result in an improvement of the signal-to-noise ratio of a LIDAR device.Type: GrantFiled: January 31, 2019Date of Patent: January 24, 2023Assignee: Robert Bosch GmbHInventors: Hans-Jochen Schwarz, Klaus Stoppel, Martin Roland Strohhaecker, Stefan Spiessberger
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Publication number: 20230003843Abstract: A transmission unit of a LIDAR device. The transmission unit includes at least one beam source for generating electromagnetic beams having a linear or rectangular cross section, and transmission optics. The transmission unit has an optical homogenizer which is arranged in a beam path of the generated beams in front of or behind the transmission optics and has at least one lens array. A LIDAR device is also described.Type: ApplicationFiled: November 16, 2020Publication date: January 5, 2023Inventors: Albert Groening, Andre Albuquerque, Anne Schumann, Dionisio Pereira, Stefan Spiessberger
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Publication number: 20220413149Abstract: An operating method for a LIDAR system, in particular of the compressed sensing type. In the method, on the emitter side and in particular in an emitter unit, by light structuring of primary light, a predefined fixed and temporally constant matrix-like primary light pattern is generated from predefined and temporally constant primary column patterns and emitted as structured primary light in a line direction of the underlying matrix by pivoting in a field of view for its scanning illumination. On the receiver side and in particular in a receiver unit, a particular received column pattern, for detection, is, on an assigned shared detector element of a detector arrangement, received, mapped, and detected in total as secondary light.Type: ApplicationFiled: November 4, 2020Publication date: December 29, 2022Inventors: Norman Haag, Stefan Spiessberger
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Patent number: 11536948Abstract: A micromechanical light deflection device, including a micromechanical light deflection unit and a transparent cover for the micromechanical light deflection unit, the transparent cover including at least one passive beam shaping unit for a light beam.Type: GrantFiled: May 30, 2018Date of Patent: December 27, 2022Assignee: Robert Bosch GmbHInventors: Klaus Stoppel, Stefan Spiessberger
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Patent number: 11531091Abstract: A LIDAR device for scanning a scanning angle, including at least one radiation source for generating at least one electromagnetic beam, including a rotatable mirror for deflecting the at least one electromagnetic beam along the scanning angle, including a receiving unit for receiving at least one incoming electromagnetic beam and for deflecting the at least one incoming electromagnetic beam to at least one detector, and including at least one filter, the at least one filter being adaptable to the at least one incoming electromagnetic beam. Moreover, a method for scanning a scanning angle with the aid of such a LIDAR device is described.Type: GrantFiled: March 27, 2018Date of Patent: December 20, 2022Assignee: Robert Bosch GmbHInventors: Stefan Spiessberger, Annemarie Holleczek, Nico Heussner
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Patent number: 11520011Abstract: An optical assembly for a LiDAR system is described. The optical assembly includes receiver optics and transmitter optics, designed to include partially coaxial beam paths; a line light source having a line orientation, which is configured, in particular within the range of a field of view of the underlying LiDAR system; and a deflection unit in a transition region from a common coaxial region to a separate biaxial region of the beam paths of the receiver optics and of the transmitter optics for biaxially splitting off a detector-side portion of the beam path of the receiver optics. The deflection unit has a hole mirror having an elongated hole that has a greater extent in a direction of longitudinal extent and a lesser extent in a direction of transverse extent. The direction of longitudinal extent of the elongated hole is oriented orthogonally to the line orientation of the line light source.Type: GrantFiled: August 3, 2018Date of Patent: December 6, 2022Assignee: Robert Bosch GmbHInventors: Annemarie Holleczek, Jan Sparbert, Siegwart Bogatscher, Stefan Spiessberger, Tobias Peterseim
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Patent number: 11520045Abstract: A method for detecting objects using a LIDAR system. The method includes emitting a first light beam scanning in a scanning direction in an emission direction at a first instant, allocating a first propagation time between the first transmission instant and a first receiving instant of a first reflection of the first light beam to the emission direction, emitting in the emission direction, an angle-resolved, further light beam scanning in the scanning direction and angularly offset from the first light beam, at a second transmission instant following the first emission instant, allocating a second propagation time between the second transmission instant and a second receiving instant of a second reflection of the second light beam to the emission direction, and evaluating hits using the propagation times allocated to the emission direction.Type: GrantFiled: May 16, 2018Date of Patent: December 6, 2022Assignee: Robert Bosch GmbHInventors: Ingmar Schultz, Reiner Schnitzer, Remigius Has, Stefan Spiessberger
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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: 11442147Abstract: A transmitter unit of a lidar device for a scanning system includes at least two radiation sources in the form of semiconductor lasers for generating and emitting electromagnetic beams in the form of a line in a scanning region, the at least two radiation sources being individual emitters directly interconnected mechanically and electrically.Type: GrantFiled: March 6, 2019Date of Patent: September 13, 2022Assignee: Robert Bosch GmbHInventors: Hans-Jochen Schwarz, Klaus Stoppel, Mazyar Sabbar, Stefan Spiessberger
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Publication number: 20220011439Abstract: An optical system includes an optical transmitter which emits a scanning light beam into the surroundings along a first beam path, and an optical detector which receives a reflected light beam from the surroundings along a second beam path. In at least one of the first beam path and the second beam path, two mirror surfaces tilted relative to one another by 90° deflect the light beam from a first plane into a second, parallel plane. The mirror surfaces are rotatably supported and coupled to one another so that when the mirror surfaces are rotated together about a rotational axis perpendicular to the planes, scanning of the surroundings takes place so that no tilting of the light beam occurs during the rotation. Beamforming of the scanning light beam takes place, at least partially, via a curvature of the two mirror surfaces and/or via a beamformer in the first beam path.Type: ApplicationFiled: December 30, 2019Publication date: January 13, 2022Inventor: Stefan Spiessberger
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Publication number: 20210173049Abstract: A LIDAR device for scanning a scanning area using at least two beams includes at least two beam sources for generating at least two beams, a generating optics for shaping the at least one generated beam, a receiving unit for receiving and evaluating at least one beam reflected on an object, and an optical bandpass filter for absorbing spurious reflections, each beam source generating at least one beam having a wavelength that is adjustable depending on an emission angle of the at least one beam.Type: ApplicationFiled: May 22, 2018Publication date: June 10, 2021Applicants: Robert Bosch GmbH, Robert Bosch GmbHInventors: Hans-Jochen Schwarz, Nico Heussner, Siegwart Bogatscher, Stefan Spiessberger