Patents by Inventor Hendrik Specht
Hendrik Specht 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: 20240019710Abstract: An optical system for a virtual retinal scan display. The system includes: an image source providing image content as image data; an image-processing device; a projector unit for generating at least one light beam, and having a controllable deflecting device for the at least one light beam for the scanning projection of the image content; a diverting unit, onto which the image content is projected, equipped to direct the projected image content onto an eye of a user; an optical segmentation element using which the image content is projectable via different imaging paths onto at least one projection region of the diverting unit, at least individual imaging paths being controllable individually; and an optical replication component equipped to direct the projected image content, replicated and spatially offset, onto the eye of the user, so that a plurality of mutually spatially offset exit pupils having the image content is produced.Type: ApplicationFiled: October 18, 2021Publication date: January 18, 2024Inventors: Andrea Marchini, Andreas Petersen, Christian Nitschke, Eva Lea Elisabeth Empting, Gael Pilard, Hendrik Specht, Joerg Carls, Johannes Hofmann, Maximilian Busch, Sebastian Reiss, Simon Pick, Tadiyos Alemayehu, Thomas Kuenstle
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Publication number: 20230071805Abstract: A projection device for smart glasses. The projection device includes an image generating unit for generating at least one first light beam representing image information, and at least one deflecting element, which is configured to deflect the first light beam in the form of a second light beam representing first image information, and to deflect the first light beam in the form of a third light beam representing second image information, into a first field of vision and/or into a second field of vision of an eye; the second light beam and the third light beam differing with regard to a beam divergence; and the second field of vision and the first field of vision at least overlapping.Type: ApplicationFiled: February 4, 2021Publication date: March 9, 2023Inventors: Andreas Petersen, Gael Pilard, Hendrik Specht
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Patent number: 11536949Abstract: A laser projection device, including at least one reflector unit having at least one reflector element that is configured to deflect at least one laser beam to be projected, and having at least one drive unit that is configured to excite at least the reflector element into resonant vibration. The laser projection device includes at least one temperature compensation unit, which is configured to acquire a vibrational frequency of at least the reflector element and to ascertain the temperature of the reflector unit from it.Type: GrantFiled: September 27, 2018Date of Patent: December 27, 2022Assignee: Robert Bosch GmbHInventors: Alexander Ehlert, Daniel Kreye, Hendrik Specht
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Publication number: 20220269088Abstract: An optical system for a virtual retinal scan display. The optical system includes an image source which supplies image data, an image processing device for the image data, a projector unit having a light source modulatable in time for generating a light beam, and an actuable refraction device for the light beam for the scanning projection of the image content, a deflection unit onto which the image content is able to be projected and which is designed to guide the projected image content onto an eye of a user, and an adaptive optical element for modifying a beam divergence, which is situated in the optical path between the light source and the deflection unit. The adaptive optical element is able to be actuated so that the beam divergence of the light beam is variable as a function of the angle of incidence of the light beam on the deflection unit.Type: ApplicationFiled: February 16, 2022Publication date: August 25, 2022Inventors: Andrea Marchini, Andreas Petersen, Christian Nitschke, Eva Lea Elisabeth Empting, Gael Pilard, Hendrik Specht, Joerg Carls, Johannes Hofmann, Maximilian Busch, Sebastian Reiss, Simon Pick, Tadiyos Alemayehu, Thomas Kuenstle
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Publication number: 20220171182Abstract: A method for activating a drive unit of a deflection unit of a two-dimensional microscanner device. First and second control signals for activating the drive unit of the deflection unit are initially generated using a processing unit. The first and second control signals are subsequently transferred to the drive unit. A sinusoidal first movement of the deflection unit about a first axis and a sinusoidal second movement of the deflection unit about a second axis are carried out at a first point in time based on the transferred control signals. The first control signals are then adapted so that a periodic third movement is superimposed on the first movement at a second point in time following the first point in time. Alternatively, the second control signals are adapted so that a periodic fourth movement is superimposed on the second movement at the second point in time following the first.Type: ApplicationFiled: July 21, 2020Publication date: June 2, 2022Inventors: Andreas Petersen, Frank Schatz, Hendrik Specht, Thomas Kuenstle
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Publication number: 20220013975Abstract: A light-emitting device, having a laser light device that is designed to emit a multiplicity of laser light beams. Ellipticities of beam cross-sections of the laser light beams differ at least partly from one another. The light-emitting device includes a beamforming device that is introduced into the beam path of at least one of the laser light beams and that is designed to adapt the ellipticities of the beam cross-sections of the laser light beams to one another, and a beam-combining device that is designed to combine the laser light beams to form an overall light beam, after the adapting of the ellipticities of the beam cross-sections by the beamforming device.Type: ApplicationFiled: February 18, 2020Publication date: January 13, 2022Inventors: Gael Pilard, Hendrik Specht, Martin Edel, Sebastian Reiss, Simon Pick
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Publication number: 20200285046Abstract: A laser projection device, including at least one reflector unit having at least one reflector element that is configured to deflect at least one laser beam to be projected, and having at least one drive unit that is configured to excite at least the reflector element into resonant vibration. The laser projection device includes at least one temperature compensation unit, which is configured to acquire a vibrational frequency of at least the reflector element and to ascertain the temperature of the reflector unit from it.Type: ApplicationFiled: September 27, 2018Publication date: September 10, 2020Inventors: Alexander Ehlert, Daniel Kreye, Hendrik Specht
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Patent number: 10737930Abstract: A micromechanical device and a corresponding manufacturing method. The micromechanical device includes: a spring element which is moveably coupleable or is moveably coupled to a frame unit at at least one connecting point of the spring element, the spring element including at least one web, which extends outward from the at least one connecting point; and the at least one web being structured in such a way that it includes at least one first section as well as at least one widening section for reducing a non-linearity of the spring element, which is widened compared to the first section.Type: GrantFiled: April 1, 2016Date of Patent: August 11, 2020Assignee: Robert Bosch GmbHInventors: Helmut Grutzeck, Frederic Njikam Njimonzie, Hendrik Specht, Joerg Muchow, Massimiliano Putignano, Odd-Axel Pruetz
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Patent number: 10336610Abstract: A method for producing a micromechanical component is provided, In a preparatory step, a substrate device of the micromechanical component and/or a cap device of the micromechanical component is patterned. In a first sub-step, a first pressure and/or a first chemical composition being adjusted, and the substrate device and the cap device being connected to each other so that a first cavern is formed, sealed from an environment of the micromechanical component, the first pressure prevailing in the first cavity and/or the first chemical composition being enclosed. In a second sub-step, a second pressure and/or a second chemical composition being adjusted, and the substrate device and the cap device being connected to each other so that a second cavity is formed, sealed from the environment of the micromechanical component and from the first cavity, the second pressure prevailing in the second cavity and/or the second chemical composition being enclosed.Type: GrantFiled: October 23, 2017Date of Patent: July 2, 2019Assignee: ROBERT BOSCH GMBHInventors: Heiko Stahl, Andreas Scheurle, Hendrik Specht, Marlene Winker, Ralf Hausner, Volker Schmitz
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Publication number: 20190155131Abstract: A monitoring device for movement monitoring for at least one MEMS actuator having at least one detection unit, which is set up to detect at least one movement signal of the MEMS actuator that includes at least one characteristic movement value of the at least one MEMS actuator. It is provided that the monitoring device includes at least one first comparator unit, which is set up to compare the at least one characteristic movement value of the at least one MEMS actuator to at least one reference value.Type: ApplicationFiled: October 26, 2018Publication date: May 23, 2019Inventors: Hendrik Specht, Alexander Ehlert, Christoph Puttmann
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Publication number: 20180292867Abstract: A method for recording an image using a mobile device, the mobile device including a camera unit, a detection area being assigned to the camera unit, the mobile unit including a projection unit, a projection area being assigned to the projection unit, the detection area and the projection area at least partially overlapping, a piece of image information being projected into the detection area in a first method step, a recording medium of the camera unit being exposed in a second method step, which follows the first method step, the image generated by the exposure of the recording medium being stored in the mobile device in a third method step.Type: ApplicationFiled: August 11, 2016Publication date: October 11, 2018Inventors: Hendrik Specht, Frank Fischer, Georg Mrusek
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Publication number: 20180155185Abstract: A micromechanical device and a corresponding manufacturing method. The micromechanical device includes: a spring element which is moveably coupleable or is moveably coupled to a frame unit at at least one connecting point of the spring element, the spring element including at least one web, which extends outward from the at least one connecting point; and the at least one web being structured in such a way that it includes at least one first section as well as at least one widening section for reducing a non-linearity of the spring element, which is widened compared to the first section.Type: ApplicationFiled: April 1, 2016Publication date: June 7, 2018Inventors: Helmut GRUTZECK, Frederic NJIKAM NJIMONZIE, Hendrik SPECHT, Joerg MUCHOW, Massimiliano PUTIGNANO, Odd-Axel PRUETZ
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Publication number: 20180111828Abstract: A method for producing a micromechanical component is provided, In a preparatory step, a substrate device of the micromechanical component and/or a cap device of the micromechanical component is patterned. In a first sub-step, a first pressure and/or a first chemical composition being adjusted, and the substrate device and the cap device being connected to each other so that a first cavern is formed, sealed from an environment of the micromechanical component, the first pressure prevailing in the first cavity and/or the first chemical composition being enclosed. In a second sub-step, a second pressure and/or a second chemical composition being adjusted, and the substrate device and the cap device being connected to each other so that a second cavity is formed, sealed from the environment of the micromechanical component and from the first cavity, the second pressure prevailing in the second cavity and/or the second chemical composition being enclosed.Type: ApplicationFiled: October 23, 2017Publication date: April 26, 2018Inventors: Heiko Stahl, Andreas Scheurle, Hendrik Specht, Marlene Winker, Ralf Hausner, Volker Schmitz
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Patent number: 9651377Abstract: A yaw rate sensor includes: a first sensor structure having a first oscillating mass and configured to detect a first yaw rate around a first axis of rotation; a second sensor structure having a second oscillating mass and configured to detect second and third yaw rates around second and third axes of rotation, respectively; and a drive structure coupled to the first and second oscillating masses. The first oscillating mass is drivable into a first drive oscillation along a first oscillation direction, and the second oscillating mass is drivable into a second drive oscillation along a second oscillation direction different from the first oscillation direction. The first axis of rotation is perpendicular to the first oscillation direction, and the second and third axes of rotation are perpendicular to the second oscillation direction.Type: GrantFiled: June 24, 2014Date of Patent: May 16, 2017Assignee: ROBERT BOSCH GMBHInventors: Thorsten Balslink, Hendrik Specht, Johannes Classen
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Publication number: 20160138667Abstract: A micromechanical spring mechanism, having two spring legs, which essentially are disposed in parallel with one another; and at least one stop element, which is placed so as to prevent the two spring legs from striking each other.Type: ApplicationFiled: October 29, 2015Publication date: May 19, 2016Inventors: Odd-Axel PRUETZ, Hendrik Specht, Antoine Puygrainer
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Patent number: 8963898Abstract: A method for controlling a micro-mirror, having the following: generating a first control signal which encodes a tilting motion of the micro-mirror about a first tilt axis, at a first frequency; generating a second control signal which encodes a tilting motion of the micro-mirror about a second tilt axis which is perpendicular to the first tilt axis, at a second frequency which is lower than the first frequency; modulating the second control signal by binary modulation of the second control signal, at the first frequency; and controlling force coupling elements of the micro-mirror, using the modulated second control signal and the first control signal.Type: GrantFiled: August 3, 2012Date of Patent: February 24, 2015Assignee: Robert Bosch GmbHInventors: Detlef Billep, Hendrik Specht, Kurth Steffen, Thomas Hilberath, Thomas Gessner, Oliver Krayl
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Publication number: 20140373628Abstract: A yaw rate sensor includes: a first sensor structure having a first oscillating mass and configured to detect a first yaw rate around a first axis of rotation; a second sensor structure having a second oscillating mass and configured to detect second and third yaw rates around second and third axes of rotation, respectively; and a drive structure coupled to the first and second oscillating masses. The first oscillating mass is drivable into a first drive oscillation along a first oscillation direction, and the second oscillating mass is drivable into a second drive oscillation along a second oscillation direction different from the first oscillation direction. The first axis of rotation is perpendicular to the first oscillation direction, and the second and third axes of rotation are perpendicular to the second oscillation direction.Type: ApplicationFiled: June 24, 2014Publication date: December 25, 2014Applicant: Robert Bosch GmbHInventors: Thorsten BALSLINK, Hendrik SPECHT, Johannes CLASSEN
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Publication number: 20130127800Abstract: A method for controlling a micro-mirror, having the following: generating a first control signal which encodes a tilting motion of the micro-mirror about a first tilt axis, at a first frequency; generating a second control signal which encodes a tilting motion of the micro-mirror about a second tilt axis which is perpendicular to the first tilt axis, at a second frequency which is lower than the first frequency; modulating the second control signal by binary modulation of the second control signal, at the first frequency; and controlling force coupling elements of the micro-mirror, using the modulated second control signal and the first control signal.Type: ApplicationFiled: August 3, 2012Publication date: May 23, 2013Inventors: Detlef BILLEP, Hendrik Specht, Kurth Steffen, Thomas Hilberath, Thomas Gessner, Oliver Krayl