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公开(公告)号：US12105291B2
公开(公告)日：2024-10-01
申请号：US17796185
申请日：2021-02-04
Applicant: Robert Bosch GmbH
Inventor： Andreas Petersen , Gael Pilard , Hendrik Specht
CPC classification number: G02B27/0172 , G02B26/101 , G02B2027/0112 , G02B2027/0123 , G02B2027/0178
Abstract: 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.
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2.发明公开公开(公告)号：US20240192500A1
公开(公告)日：2024-06-13
申请号：US18552706
申请日：2022-05-23
Applicant: Robert Bosch GmbH
Inventor： Nikolai Suchkov , Andreas Petersen , Anna-Katharina Friedel , Hendrik Specht , Johannes Hofmann , Mazyar Sabbar , Tadiyos Alemayehu
CPC classification number: G02B27/0172 , G02B5/30 , G02B26/101 , G02B27/0093 , G09G3/002 , G02B2027/0174 , G02B2027/0178
Abstract: An optical system for a virtual retinal display. The optical system includes: an image source providing image content as image data; an image processing device for the image data; a projector unit generating at least one light beam and including a drivable deflection device for the at least one light beam for scanning projection of the image content; a first deflection unit onto which the image content is projectable and configured to direct the projected image content onto a user's eye; a second deflection unit arranged between the projector unit and first deflection unit configured to deflect the light beam via a first imaging path at a first point in time and via a second imaging path at a second point in time subsequent to the first point in time onto at least one projection region of the first deflection unit; and an optical replication component.
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公开(公告)号：US10228338B2
公开(公告)日：2019-03-12
申请号：US15429443
申请日：2017-02-10
Applicant: Robert Bosch GmbH
Inventor： Andreas Petersen , Andreas Krauss , Michael Badeja
Abstract: A measuring device for determining a gas concentration includes a gas-sensitive element, a sensing device, a stimulation unit, and a processing unit. The gas-sensitive element is configured to absorb a gas. The sensing device is configured to determine a parameter of the gas-sensitive element in a predetermined time period, where the parameter depends on an absorbed quantity of the gas. The stimulation unit is configured to stimulate the gas-sensitive element and accelerate desorption of the gas out of the gas-sensitive element. The processing unit is configured to determine a rate of change of the parameter, to control the stimulation such that a concentration of the gas in the gas-sensitive element lies outside of an equilibrium state, and to determine the gas concentration based on the rate of change.
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公开(公告)号：US11513594B2
公开(公告)日：2022-11-29
申请号：US17336849
申请日：2021-06-02
Applicant: Robert Bosch GmbH , TRUMPF Photonic Components GmbH
Inventor： Andreas Petersen , Thomas Alexander Schlebusch , Johannes Meyer , Hans Spruit , Jochen Hellmig
Abstract: A method for operating smart glasses includes an input unit and/or output unit and a gaze detection arrangement, wherein the gaze detection arrangement detects any eye movement of an eye including the steps of irradiating at least one wavelength-modulated laser beam to the eye, detecting an optical path length of the emitted laser beam based on laser feedback interferometry of the emitted laser radiation with backscattered radiation from the eye, detecting a Doppler shift of the emitted and backscattered radiation based on the laser feedback interferometry, and detecting an eye velocity based on the Doppler shift, and wherein the input unit and/or output unit is operated based on the optical path length and/or the eye velocity.
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公开(公告)号：US20220003986A1
公开(公告)日：2022-01-06
申请号：US17293744
申请日：2020-01-11
Applicant: Robert Bosch GmbH
Inventor： Stefan Gering , Andreas Petersen , Florian Schuster
Abstract: A method for operating a MEMS system having a projection unit for providing an image via a light beam, and a deflecting unit for the two-dimensional deflection of the at least one light beam. The method includes: driving the deflecting unit via a reference signal, so that the deflecting unit periodically deflects a light beam at least two-dimensionally, measuring a controlled variable of the deflecting unit that corresponds to an actual position of the deflected light beam, ascertaining a current deviation of the controlled variable from a target variable that corresponds to a target position of the light beam, calculating a compensating variable based on the ascertained deviation, controlling the deflecting unit and/or controlling the projection unit based on the calculated compensating variable for reducing the deviation of the light beam from the target position. The compensating variable is additionally calculated based on an earlier deviation in an earlier period.
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Patent Agency Ranking
公开(公告)号：US20210271320A1
公开(公告)日：2021-09-02
申请号：US17259157
申请日：2019-08-12
Applicant: Robert Bosch GmbH
Inventor： Reinhold Fiess , Andreas Petersen , Thomas Alexander Schlebusch
Abstract: A method for ascertaining a viewing direction of an eye. A laser beam emitted by a laser source is passed over at least two scanning points on the eye, using a reflection element and a deflecting element. A self-mixing effect of the scanning laser beam reflected by the eye into the laser source is used, in order to determine, for the at least two scanning points, the optical path length from the laser source to the at least two scanning points on the surface of the eye and/or a reflectivity of the eye at the at least two scanning points.
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公开(公告)号：US10606082B2
公开(公告)日：2020-03-31
申请号：US16074035
申请日：2017-01-30
Applicant: Robert Bosch GmbH
Inventor： Andreas Petersen
Abstract: A projection device for smart glasses. The projection device includes an image-generation unit for generating at least one first ray of light representing first image information, and a second ray of light representing second image information. The first ray of light and the second ray of light differ from each other with regard to a beam divergence. In addition, the first image information and the second image information differ from each other with regard to a perceivable image sharpness. Moreover, the projection device includes at least one deflection element, which is configured to display the first image information within a first field of view of an eye using the first ray of light, and to display the second image information within a second field of view of the eye disposed outside the first field of view, using the second ray of light.
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公开(公告)号：US20180031201A1
公开(公告)日：2018-02-01
申请号：US15524188
申请日：2015-09-29
Applicant: Robert Bosch GmbH
Inventor： Mihel Seitz , Andreas Petersen
IPC: F21S8/10
CPC classification number: F21S41/675 , F21S41/14 , F21S41/176 , F21S41/36 , F21S41/365 , F21S41/40
Abstract: In one embodiment, an illumination device for a vehicle includes a light source operable for generating a light beam and a beam deflection unit operable for deflecting the light beam. The illumination device also includes a luminous layer element operable to be selectively illuminatable with the light beam in its planar extent using the beam deflection unit. The illumination device also includes a reflector element arranged in a manner adjoining the luminous layer element. The reflector element is configured such that the luminous layer element and the reflector element are illuminatable by the deflected light beam. The light beam impinging on the reflector element is divertable onto the luminous layer element.
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公开(公告)号：US12204094B2
公开(公告)日：2025-01-21
申请号：US17293744
申请日：2020-01-11
Applicant: Robert Bosch GmbH
Inventor： Stefan Gering , Andreas Petersen , Florian Schuster
Abstract: A method for operating a MEMS system having a projection unit for providing an image via a light beam, and a deflecting unit for the two-dimensional deflection of the at least one light beam. The method includes: driving the deflecting unit via a reference signal, so that the deflecting unit periodically deflects a light beam at least two-dimensionally, measuring a controlled variable of the deflecting unit that corresponds to an actual position of the deflected light beam, ascertaining a current deviation of the controlled variable from a target variable that corresponds to a target position of the light beam, calculating a compensating variable based on the ascertained deviation, controlling the deflecting unit and/or controlling the projection unit based on the calculated compensating variable for reducing the deviation of the light beam from the target position. The compensating variable is additionally calculated based on an earlier deviation in an earlier period.
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公开(公告)号：US20240249653A1
公开(公告)日：2024-07-25
申请号：US18551003
申请日：2022-07-08
Applicant: Robert Bosch GmbH
Inventor： Hendrik Specht , Andreas Petersen , Christian Nitschke , Mazyar Sabbar , Nikolai Suchkov , Tadiyos Alemayehu
CPC classification number: G09G3/001 , G02B27/0172 , G06F3/013 , G02B2027/0178 , G09G2320/0233 , G09G2354/00
Abstract: A method for projecting image content onto the retina of a user using an optical system. Image data are captured using the image processing device. A first subset of the image data is blanked, thereby generating an active second subset of image data. The first and second subsets make up the total amount of the image data. The projector unit is controlled using the image data such that there is always only one eye box, generated on a common imaging path, with the same active image data arranged in the region of a first pupil region of the user. The first pupil region surrounds the pupil center. A portion of the eye box is arranged with a portion of the active image data within a second pupil region of the user. The second pupil region surrounds the pupil center. The second pupil region is arranged within the first pupil region.
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