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1. 发明公开

EP4283330A1 LIDAR DEVICE WITH SPATIAL LIGHT MODULATORS 审中-实审
公开(公告)号：EP4283330A1
公开(公告)日：2023-11-29
申请号：EP22174897.3
申请日：2022-05-23
申请人： Hexagon Technology Center GmbH
发明人： WOHLGENANNT, Rainer , HINDERLING, Jürg
IPC分类号： G01S7/481 , G01S17/89 , G02B5/04 , G02B26/08
摘要： The invention relates to a multichannel Light Detection And Ranging (LIDAR) device (4) with a dense array (1) of equal spatial light modulator elements (M, M1, M2) such as a digital micromirror device. The modulator array (1) is arranged in a focal plane of a receiving optics (20) between the receiving optics (20) of a receiver unit (29) and detectors (2, 2i, 2a-c). Each spatial light modulator element (M, M1, M2) individually provides a first spatial modulation state (1a) and a second spatial modulation state (1b), the two states differing in light redirection. Only in the first modulation state (1) light (10) from the receiving optics (20) is redirected via a respective modulator element (M, M1) in a targeted manner towards a detector (2, 2a-c). The receiver unit (29) comprises a dense array (3) of juxtaposed optical wedges (3i, 3a-c) in between the modulator array (1) and the detectors (2, 2i, 2a-c). Each wedge (3i, 3a-c) covers a different area (Ai, A1-A3) of the modulator array (1) and the refractive planes of the wedges (3a-c) are differently oriented, such that light coming from the modulator array (1) of modulator elements (M, M1) in the first modulation state (1a) is refracted area-wise in different refraction directions by the wedge array (3). The detectors (2a-c) are spatially separated from each according to a respective refraction direction (11i, 11a-c) each such that light of a respective modulator area (Ai, A1-A3) is receivable by a respective detector (2i, 2a-c).

2. 发明公开

EP3839566A1 GEODETIC SURVEYING DEVICE FOR MEASURING SCENES COMPRISING NATURAL AND ARTIFICIAL TARGETS 审中-实审
公开(公告)号：EP3839566A1
公开(公告)日：2021-06-23
申请号：EP19218302.8
申请日：2019-12-19
申请人： Hexagon Technology Center GmbH
发明人： HINDERLING, Jürg , BESTLER, Simon
IPC分类号： G01S17/42 , G01S17/87 , G01S7/481 , G01S7/484 , G01S7/48 , G01S17/88 , G01C15/00 , G01S17/66 , G01S17/89
摘要： The invention relates to a geodetic surveying device for measuring cooperative reflecting targets and diffusely reflecting targets. The carrier unit (5) of the surveying device is configured to provide at least three different distance measuring beams, each having a pre-defined beam shape and illuminating a spot area at the target. A first (9) of the three distance measuring beams has a divergence angle smaller than 1 mrad, a second (10) of the three distance measuring beams has a divergence angle within a divergence angle range ranging from 1 to 2 mrad, and a third (11) of the three distance measuring beams has a maximum divergence angle within a divergence angle range ranging from 2 to 15 mrad. The carrier unit is configured to detect returning parts of the third distance measuring beam with an associated maximum receiver field of view lying within a range ranging from 2 to 15 mrad. Thereby, the first distance measuring beam is used to measure diffusely reflecting targets by making a distance to a diffusely reflecting target determinable as a mean distance averaged over the illuminated spot area within the receiver field of view associated with the first distance measuring beam, the second distance measuring beam to measure cooperative reflecting targets, and the third distance measuring beam to measure diffusely reflecting targets by making a distance to a diffusely reflecting target determinable as a mean distance averaged over the illuminated spot area within the maximum receiver field of view associated with the third distance measuring beam.

3. 发明公开

EP3835818A1 IMPROVED LIDAR WITH REDUCED PHOTON NOISE 审中-实审
公开(公告)号：EP3835818A1
公开(公告)日：2021-06-16
申请号：EP19215819.4
申请日：2019-12-12
申请人： Hexagon Technology Center GmbH
发明人： HINDERLING, Jürg , STUTZ, Reto
IPC分类号： G01S7/484 , G01S17/26
摘要： Distance measuring device for geodetic or industrial distance measurement according to the pulse time-of-flight principle, the distance measuring device comprising a light generator (1) configured to emit at least one pulsed light signal to a target (5), wherein the pulsed light signal has a pulse form envelope (10), a receiving circuit (8) having a detector configured for detecting at least part of the light signal returning from the target (5), wherein the receive signal is extracted in such a way as to be comparable to the pulse form envelope (10), and an evaluation unit (9) configured for determining the time of flight of the pulsed light signal on the basis of the receive signal, wherein a start time of the pulsed light signal is determined, particularly based on the time of occurrence of a feature in the emitted pulse form envelope of the emitted pulsed light signal, and a stop time is determined based on the time of occurrence of a feature in the receive signal, particularly the same feature as the feature used for determining the start time, wherein the difference between the stop and start time is used for determining the distance to the target, wherein the distance measuring device is configured in such a way that the at least one pulsed light signal generated by the light generator (1) is comprised of sub-pulses (13) provided with a repetition rate of at least 1GHz, wherein the sub-pulses (13) contained in the pulsed light signal preserve the pulse form envelope (10) of the pulsed light signal.

4. 发明授权

EP3415950B1 DISTANZMESSER MIT SPAD-ANORDNUNG UND RANGE WALK KOMPENSATION 有权
公开(公告)号：EP3415950B1
公开(公告)日：2020-05-27
申请号：EP17175868.3
申请日：2017-06-13
申请人： Hexagon Technology Center GmbH
发明人： HINDERLING, Jürg , BESTLER, Simon , PIOK, Thomas , WALSER, Andreas , WOHLGENANNT, Rainer
IPC分类号： G01S17/10 , G01S7/4865

5. 发明公开

EP3489714A1 OPTISCHER DISTANZMESSER MIT SCHALTBARER EMPFANGSAPERTUR 审中-公开
公开(公告)号：EP3489714A1
公开(公告)日：2019-05-29
申请号：EP17204214.5
申请日：2017-11-28
申请人： Hexagon Technology Center GmbH
发明人： BESTLER, Simon , WOHLGENANNT, Rainer , HINDERLING, Jürg
IPC分类号： G01S7/481
摘要： Die Erfindung bezieht sich auf einen optischen Distanzmesser konfiguriert zum Durchführen einer Distanzmessung in einem ersten Messmodus, in dem der Distanzmesser eingestellt ist zur Distanzmessung auf ein retroreflektierendes Ziel (6), und einem zweiten Messmodus, in dem der Distanzmesser eingestellt ist zur Distanzmessung auf ein diffus streuendes Ziel (8). Dabei wird im ersten Messmodus eine erste Apertur (13) des Empfangskanals eingestellt, welche kleiner ist als eine im zweiten Messmodus eingestellte Apertur.

6. 发明授权

EP2737277B1 OPTISCHES MESSSYSTEM MIT FILTEREINHEIT ZUR EXTRAKTION ELEKTROMAGNETISCHER STRAHLUNG 有权
公开(公告)号：EP2737277B1
公开(公告)日：2019-03-27
申请号：EP12740357.4
申请日：2012-07-25
申请人： Hexagon Technology Center GmbH
发明人： HINDERLING, Jürg , SIERCKS, Knut
IPC分类号： G01C1/02 , G02B5/28 , G01C15/00 , G01B11/00

7. 发明授权

EP2788717B8 POSITION AND ORIENTATION DETERMINATION IN 6-DOF 有权
公开(公告)号：EP2788717B8
公开(公告)日：2018-07-25
申请号：EP12797905.2
申请日：2012-12-05
申请人： Hexagon Technology Center GmbH
发明人： PETTERSSON, Bo , SIERCKS, Knut , VOIT, Eugen , HINDERLING, Jürg , ZEBHAUSER, Benedikt , SCHNEIDER, Klaus
IPC分类号： G01C15/06 , E02F3/84 , E02F9/26 , G01C15/00
CPC分类号： G06T17/00 , E02F3/842 , E02F9/261 , G01C15/002 , G01C15/06 , G06T7/74 , G06T2207/10024 , G06T2207/10028
摘要： A method for a six degree of freedom position and orientation determination of a three dimensional known shape in a scenery, by taking a range image by means of a range imaging camera and taking a visual picture by means of a digital camera. The range imaging camera comprises a range image module having a sensor array with a first number of pixels, wherein for each of the first pixels range information from the sensor to a point of the scenery is determined, resulting in a 3D cluster of points. The digital camera comprises an image sensor having a second number of pixels, resulting in a 2D picture. The relation of the first and the second pixels fields of view is known. The method comprises a geometrically fitting of a stored 3D digital representation of the known shape in a virtual space to match with the reproduction of the known object in the 2D picture and the 3D cluster of points and determining the six degree of freedom position and orientation of the known shape in the scenery according to the virtual match.

8. 发明公开

EP3339901A1 LASERDISTANZMESSMODUL MIT ADC-FEHLERKOMPENSATION DURCH VARIATION DER SAMPLINGZEITPUNKTE 有权
公开(公告)号：EP3339901A1
公开(公告)日：2018-06-27
申请号：EP16206010.7
申请日：2016-12-21
申请人： Hexagon Technology Center GmbH
发明人： WOHLGENANNT, Rainer , BESTLER, Simon , HINDERLING, Jürg
IPC分类号： G01S17/10 , G01S7/486
CPC分类号： G01S17/10 , G01S7/4865 , H03M1/0624
摘要： Die vorliegende Erfindung betrifft eine Distanzmessmethode und ein elektronisches Laserdistanzmessmodul, insbesondere zur Verwendung in einem Distanzmessgerät, im Speziellen ausgebildet als Lasertracker, Tachymeter, Laserscanner, oder Profiler, zur schnellen Signalerfassung mit einem Analog-Digital-Wandler, wobei im Rahmen einer Signal-Digitalisierung entstehende Umwandlungsfehler, insbesondere Timing-, Gain- und Offset-Fehler des ADC, mittels Variation der Samplingzeitpunkte kompensiert werden.

9. 发明授权

EP2707745B1 KALIBRIERVERFAHREN FÜR EIN GERÄT MIT SCANFUNKTIONALITÄT 有权
标题翻译：具有扫描功能的设备的校准程序
公开(公告)号：EP2707745B1
公开(公告)日：2017-11-29
申请号：EP12721498.9
申请日：2012-05-10
申请人： Hexagon Technology Center GmbH
发明人： HINDERLING, Jürg , GORDON, Bianca , WALSER, Bernd
IPC分类号： G01S7/497 , G01S17/42 , G01C15/00
CPC分类号： G01B11/002 , G01C15/002 , G01S7/4972 , G01S17/023 , G01S17/42

10. 发明公开

EP4012454A1 SCANNING DEVICE WITH POINT-TO POINT FOCUSING 有权
公开(公告)号：EP4012454A1
公开(公告)日：2022-06-15
申请号：EP20213118.1
申请日：2020-12-10
申请人： Hexagon Technology Center GmbH
发明人： HINDERLING, Jürg , WALSER, Andreas , MAYER, Tim , BEYER, Hannes , ROHRER, Oliver
IPC分类号： G01S17/89 , G01S7/48 , G01S7/481 , G01C15/00 , G02B26/00
摘要： Method and opto-electronic measuring device (1) for measuring of an object's surface with a measuring rate of at least one thousand object points (P, Px, P1, P2, P3) per second. Using a high-speed autofocus optical module comprising at least one variable focal length lens (2, 2a) or reconfigurable optical phase plate having a response time of under 1ms, situated in an emitting beam path (9), there is a real-time focus adaption of the measurement beam within a single object point measurement period.

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