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161 CN111051919A
用于运行激光测距仪的方法
Under Examination
Publication/Patent Number: CN111051919A Publication Date: 2020-04-21 Application Number: 201880058108.2 Filing Date: 2018-08-21 Inventor: A.布劳恩   S.诺厄   B.施密特克   Assignee: 罗伯特·博世有限公司   IPC: G01S17/02 Abstract: 所提出的用于运行激光测距仪(10)、特别是手持式激光测距仪(10)的方法基于如下一种方法,在该方法中借助于发射装置发射激光射束(20)到目标点(38),借助于具有探测面(32)的接收装置(36)检测从所述目标点(38)反射的激光射束(28),利用至少一个相机(40)检测所述目标点(38)的至少一个目标环境(44)的至少一个图像(42、42a、42b),以及在所述激光测距仪(10)的显示屏(14)上输出所述图像(42、42a、42b)的与所述目标点(38)的标记(48、48a、48b)叠加的图示(46、46a、46b)。根据本发明,在所述图像(42、42a、42b)的与所述目标点(38)的标记(48、48a、48b)叠加的图示(46、46a、46b)中的视差误差根据所估计的距所述目标点(38)的距离来予以校正。此外,提出了一种相应的激光测距仪(10)。
162 US10775485B2
LIDAR device and system comprising the same
Publication/Patent Number: US10775485B2 Publication Date: 2020-09-15 Application Number: 15/814,131 Filing Date: 2017-11-15 Inventor: Shim, Young Bo   Moon, Yeon Kug   Assignee: Korea Electronics Technology Institute   IPC: G01C3/08 Abstract: The described technology relates to a light detection and ranging (LIDAR) device. The LIDAR device can include a transmitter configured to emit an optical signal, a first lens section configured to convert the optical signal into collimated light, a reflector configured to adjust a direction of the converted optical signal, a second lens section configured to allow the adjusted optical signal to have the same focal plane even though a reflection angle of the reflector is varied and a third lens section configured to convert the optical signal passed through the second lens section into collimated light. The LIDAR device can also include a fourth lens section configured to allow the optical signal, and a receiver configured to receive the optical signal passed through the fourth lens section. The third lens section and the fourth lens section are positioned on the same line in a first direction.
163 US10788581B2
Device for optically measuring the distance from a reflective target object
Publication/Patent Number: US10788581B2 Publication Date: 2020-09-29 Application Number: 15/575,299 Filing Date: 2016-05-11 Inventor: Gogolla, Torsten   Winter, Andreas   Assignee: Hilti Aktiengesellschaft   IPC: G01C3/08 Abstract: A device for optically measuring the distance from a reflective target object is disclosed. The device includes a beam source, a detector, a beam shaping system with a transmitter lens and a receiver lens and a laser beam shaping element which can be positioned in the beam path of the laser beam. The laser beam shaping element is embodied as a transmission aperture system with at least one transmission aperture, where at least one transmission aperture creates a partial beam and the partial beam widens to one or more beam angles which are no smaller than a minimum critical angle of 1.0 mrad.
164 US10571574B1
Hybrid LADAR with co-planar scanning and imaging field-of-view
Publication/Patent Number: US10571574B1 Publication Date: 2020-02-25 Application Number: 15/432,105 Filing Date: 2017-02-14 Inventor: Yavid, Dmitriy   Assignee: Red Creamery, LLC   IPC: G01C3/08 Abstract: A laser radar includes: a laser, an optical transmission system, a 1-dimensional array of photo-detectors, an optical reception system, and an electronic control system. The laser emits a wavelength of light, and the optical transmission system shapes the light into a beam, and scans the beam along a fan of transmission light paths toward a target. The photo-detectors are capable of time-of-arrival measurements and are sensitive to the wavelength of light. The optical reception system collects the laser light reflected from the target along a fan of reception light paths. The electronic control system synchronizes the scan of the beam with a respective time-of-arrival measurement from each of the photo-detectors, and analyzes the time-of-arrival measurements. The system is configured for all of the transmission light paths and all of the reception light paths to lie in one plane, with all of the reception light paths intersecting with at least one of the transmission light paths.
165 US10782408B2
Calibration method and device based on single-wavelength double-laser-tube phase measurement
Publication/Patent Number: US10782408B2 Publication Date: 2020-09-22 Application Number: 15/740,804 Filing Date: 2016-08-25 Inventor: He, Gang   Assignee: HONGKONG SNDWAY INSTRUMENT COMPANY LIMITED   IPC: G01C3/08 Abstract: A calibration method includes: (S1) generating an external light path via a laser automatic power control circuit through a high frequency modulation signal, sending the external light path to a measured target, reflecting the external light path back through the measured target and receiving the reflected external light path by a photoelectric receiving circuit; (S2) generating an internal light path via the laser automatic power control circuit through the high frequency modulation signal, directly sending the internal light path to the photoelectric receiving circuit, and receiving the internal light path through the photoelectric receiving circuit; and (S3) performing phase comparison between two paths of light waves respectively corresponding to the external light path and the internal light path received firstly and secondly by the photoelectric receiving circuit, and a reference phase signal through the photoelectric receiving circuit, calculating a distance phase, and outputting a signal whose base is eliminated.
166 US10788582B2
Optical sensor chip
Publication/Patent Number: US10788582B2 Publication Date: 2020-09-29 Application Number: 15/977,957 Filing Date: 2018-05-11 Inventor: Feng, Dazeng   Luff, Bradley Jonathan   Asghari, Mehdi   Assignee: SiLC Technologies, Inc.   IPC: G01C3/08 Abstract: The LIDAR chip includes a utility waveguide that guides an outgoing LIDAR signal to a facet through which the outgoing LIDAR signal exits from the chip. The chip also includes a control branch that removes a portion of the outgoing LIDAR signal from the utility waveguide. The control branch includes a control light sensor that receives a light signal that includes light from the removed portion of the outgoing LIDAR signal. The chip also includes a data branch that removes a second portion of the outgoing LIDAR signal from the utility waveguide. The data branch includes a light-combining component that combines a reference light signal that includes light from the second portion of the outgoing LIDAR signal with a comparative light signal that includes light that was reflected off an object located off of the chip.
167 US10656271B2
Time-of-flight distance measurement device and method for same
Publication/Patent Number: US10656271B2 Publication Date: 2020-05-19 Application Number: 15/318,706 Filing Date: 2015-11-03 Inventor: Nagai, Toshiaki   Yanai, Kenichi   Assignee: DENSO CORPORATION   IPC: G01C3/08 Abstract: A light emitting element emits a modulated light modulated in a pattern having a repetitive period toward a space. A driving unit drives the light emitting element. A light receiving element distributes charges corresponding to an incident light containing a reflected light obtained by reflecting the modulated light on an object to storage capacitors and stores the distributed charges. A control unit controls an exposure of the light receiving element. A signal processing unit measures a distance to the object by using a value sampled by the light receiving element. The control unit controls the exposure of the light receiving element to give a sensitivity to at least one high-order harmonic. The signal processing unit linearly combines a component of a fundamental wave with a component of the at least one high-order harmonic to measure the distance to the object.
168 US10634787B2
Laser distance measuring device and method for operating a laser distance measuring device
Publication/Patent Number: US10634787B2 Publication Date: 2020-04-28 Application Number: 15/672,615 Filing Date: 2017-08-09 Inventor: Becht, Hubert   Haug, Martin   Rech, Markus   Weispfenning, Martin   Assignee: Hensoldt Optronics GmbH   IPC: G01C3/08 Abstract: A laser distance measuring device for determining a distance to a target, in particular for a weapon system, comprises a first laser light source that is designed to emit laser pulses with a first pulse power, a second laser light source that is designed to emit laser pulses with a second pulse power, wherein the second pulse power of the second laser light source is higher than the first pulse power of the first laser light source (TX1), a receiver that is designed for receiving laser pulse radiation (RP) reflected by the target, an electronic controller for actuating the first laser light source, the second laser light source and the receiver. The electronic controller is designed to emit a first laser pulse by means of the first laser light source, after which, if a distance to the target cannot be determined with the first laser pulse by means of the receiver, a second laser pulse is emitted by means of the second laser light source.
169 US10605920B2
Power savings through refresh control for distance sensing devices
Publication/Patent Number: US10605920B2 Publication Date: 2020-03-31 Application Number: 15/405,363 Filing Date: 2017-01-13 Inventor: Liu, Yang   Condorelli, Vincenzo   Assignee: ams Sensors Singapore Pte. Ltd.   IPC: G01C3/08 Abstract: The present disclosure describes refresh control methods for generating distance data and optoelectronic modules that are operable to provide distance information at a predetermined refresh rate, but with a reduction in overall power consumption attributable to the distance determinations.
170 US10627489B2
Spatially self-similar patterned illumination for depth imaging
Publication/Patent Number: US10627489B2 Publication Date: 2020-04-21 Application Number: 16/377,434 Filing Date: 2019-04-08 Inventor: Braker, Benjamin   Wegner, Aaron   Zimmerman, Ronald   Moore, Eric   Mcdonald, Trevor   Assignee: Cognex Corporation   IPC: G01C3/08 Abstract: Methods, systems, and devices involving patterned radiation are provided in accordance with various embodiments. Some embodiments include a device for projecting pattern radiation. Some embodiments include a method for estimating coordinates of a location on an object in a 3D scene. Some embodiments include a system for estimating the coordinates of a location on an object in a 3D scene. A variety of radiation patterns are provided in accordance with various embodiments. Some embodiments may relate to the use of patterned illumination to identify the angular information that may be utilized to measure depth by triangulation.
171 US10698089B2
Mirror unit and optical-scanning-type object detection device
Publication/Patent Number: US10698089B2 Publication Date: 2020-06-30 Application Number: 15/747,169 Filing Date: 2016-06-08 Inventor: Kaneko, Naoki   Ide, Yoshinori   Tamura, Yoshifumi   Mori, Hajime   Assignee: KONICA MINOLTA, INC.   IPC: G01C3/08 Abstract: An optical unit contains an optical element made of resin obtained by integrally forming a reflector in which a reflecting surface which reflects a light flux is formed on an outer peripheral side surface, and a flange extending in a direction orthogonal to the reflector to support the reflector; a rotary driving body which rotates the optical element; and a connecting device which connects the flange of the optical element to the rotary driving body, the optical element being capable of rotating around a rotational axis of the rotary driving body.
172 US10802143B2
Distance measurement device, deriving method for distance measurement, and deriving program for distance measurement
Publication/Patent Number: US10802143B2 Publication Date: 2020-10-13 Application Number: 15/904,453 Filing Date: 2018-02-26 Inventor: Masuda, Tomonori   Assignee: FUJIFILM CORPORATION   IPC: G01C3/08 Abstract: A distance measurement device includes an imaging unit, a measurement unit that measures a distance to a subject by emitting directional light which is light having directivity to the subject and receiving reflection light of the directional light, and a deriving unit that acquires a correspondence relation between an in-provisional-image irradiation position, which corresponds to an irradiation position of the directional light onto the subject, within a provisional image acquired by provisionally imaging the subject by the imaging unit whenever each of a plurality of distances is provisionally measured by the measurement unit and a distance which is provisionally measured by the measurement unit by using the directional light corresponding to the in-provisional-image irradiation position, and derives an in-actual-image irradiation position, within an actual image acquired by performing actual imaging by the imaging unit, based on the acquired correspondence relation.
173 US10688911B2
Illumination apparatus
Publication/Patent Number: US10688911B2 Publication Date: 2020-06-23 Application Number: 16/463,497 Filing Date: 2016-11-24 Inventor: Shimada, Kenichi   Assignee: MAXELL, LTD.   IPC: B60Q1/14 Abstract: In an illumination apparatus arranged on a vehicle, image data of a plurality of pixels of an imaging region in front of the vehicle is created and an image processor calculates a luminance of each of the pixels on the basis of the image data. A controller is configured to calculate an average luminance of each of partial regions of the imaging region on the basis of the luminance of each of the pixels, to determine whether it is necessary to perform luminance adjustment for each of the partial regions, and to perform luminance adjustment for the partial region on the basis of a result of the determination. An illuminating unit having a plurality of light sources illuminates the partial region while allowing each light source to be adjusted so as to have a predetermined light quantity on the basis of the result of the luminance adjustment.
174 US10630884B2
Camera focusing method, apparatus, and device for terminal
Publication/Patent Number: US10630884B2 Publication Date: 2020-04-21 Application Number: 16/087,926 Filing Date: 2016-03-23 Inventor: Du, Cheng   Luo, Wei   Guo, Xin   Rong, Huaiyang   Wu, Jin   Assignee: HUAWEI TECHNOLOGIES CO., LTD.   IPC: H04N5/232 Abstract: A camera focusing method, apparatus, and device for a terminal, and relate to the field of electronic device technologies to improve focusing precision of a terminal in a camera focusing process. The method includes obtaining a first confidence and a second confidence, determining a target ranging manner and a target object distance when the first confidence and the second confidence meet a preset condition, and determining a target position in a lens position interval to help a first camera and a second camera complete focusing.
175 US10534085B2
Laser radar device and traveling body
Publication/Patent Number: US10534085B2 Publication Date: 2020-01-14 Application Number: 15/553,247 Filing Date: 2015-11-19 Inventor: Kawazoe, Kohei   Kubota, Takahiro   Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.   IPC: G01C3/08 Abstract: A laser light source; a light sending lens configured to form laser light emitted from the laser light source into a spot shape; a scanner configured to perform irradiation while performing scanning, with the laser light formed into the spot shape, in a horizontal direction and a vertical direction of an area to be measured; a light receiving lens configured to receive reflected light reflected from the area to be measured; a light receiving optical system configured to condense the reflected light received by the light receiving lens, in each of the horizontal direction and vertical direction; and an information generating unit configured to generate, based on a received signal output by the light receiving element, three dimensional information of the area to be measured.
176 US10739441B2
System and method for adjusting a LiDAR system
Publication/Patent Number: US10739441B2 Publication Date: 2020-08-11 Application Number: 15/721,274 Filing Date: 2017-09-29 Inventor: Nabbe, Bartholomeus C.   Assignee: FARADAY & FUTURE INC.   IPC: G01C3/08 Abstract: In some examples, a system comprises a laser light source and a rotatable mirror assembly comprising a plurality of mirror segments, the rotatable mirror assembly aligned to reflect light transmitted by the laser light source, wherein the plurality of mirror segments comprise a first segment that reflects a first light beam from the laser light source in a first direction, and a second mirror segment that reflects the first light beam from the laser light source in a second direction, different from the first direction. In some examples, the system comprises a light sensor positioned to receive light reflected from the rotatable mirror assembly. In some examples, the system comprises a motor for rotating the mirror assembly about a rotation axis. In some examples, the system comprises a controller for controlling a sampling phase of sampling the light sensor.
177 US10585176B2
Pulsed-based time of flight methods and system
Publication/Patent Number: US10585176B2 Publication Date: 2020-03-10 Application Number: 15/708,294 Filing Date: 2017-09-19 Inventor: Boutaud, Frederic   Li, Mei   Assignee: Rockwell Automation Technologies, Inc.   IPC: G01C3/08 Abstract: A time of flight sensor device is provided that is capable of generating accurate information relating to propagation time of emitted light pulses using a small number of measurements or data captures. By generating pulse time of flight information using a relatively small number of measurement cycles, object distance information can be generated more quickly, resulting in faster sensor response times. Embodiments of the time of flight sensor can also minimize or eliminate the adverse effects of ambient light on time of flight measurement. Moreover, some embodiments execute time of flight measurement techniques that can achieve high measurement precision even when using relatively long light pulses having irregular, non-rectangular shapes.
178 EP3673294A1
COHERENT OPTICAL DISTANCE MEASUREMENT APPARATUS AND METHOD
Publication/Patent Number: EP3673294A1 Publication Date: 2020-07-01 Application Number: 18847392.0 Filing Date: 2018-08-23 Inventor: Desai, Shahyaan   Lardin, Clifford A.   Adams, Scott G.   Assignee: Mezmeriz, Inc.   IPC: G01S17/32
179 EP3679402A1
METHOD FOR OPERATING A LASER DISTANCE MEASURING DEVICE
Publication/Patent Number: EP3679402A1 Publication Date: 2020-07-15 Application Number: 18758596.3 Filing Date: 2018-08-21 Inventor: Braun, Andreas   Noe, Stefan   Schmidtke, Bernd   Assignee: Robert Bosch GmbH   IPC: G01S17/02
180 US10802113B2
Optical ranging device and optical ranging system
Publication/Patent Number: US10802113B2 Publication Date: 2020-10-13 Application Number: 15/744,644 Filing Date: 2017-10-18 Inventor: Wang, Rui   Wang, Ting   Li, Yuan   Zheng, Kai   Shu, Da   Assignee: BENEWAKE (BEIJING) CO., LTD.   IPC: G01C3/08 Abstract: The present disclosure relates to an optical ranging device. The optical ranging device comprises a housing, a bottom cover, an emitting lens, a receiving lens and a circuit board. The emitting lens and the receiving lens are fixed on the circuit board. The circuit board comprises a light emitting module, receiving module and data processing and controlling module. An infrared light emitted by a light source of the light emitting module passes through the emitting lens and the housing successively and enters the external environment. The infrared light reflected by the object passes through the housing and the receiving lens successively and is received by the receiving module which is connected to a signal processing and controlling module. The distance between the optical ranging device and the object is calculated based on the Time of Flight principle.