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1. 发明公开

US20240237538A1 POSITIONING DEVICE AND METHOD FOR OPERATING SUCH A POSITIONING DEVICE 审中-公开
公开(公告)号：US20240237538A1
公开(公告)日：2024-07-11
申请号：US18561928
申请日：2022-05-17
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： Alexej WISCHNEWSKI
IPC分类号： H10N30/00 , G01H11/08 , H10N30/02 , H10N30/80
CPC分类号： H10N30/1071 , G01H11/08 , H10N30/02 , H10N30/802
摘要： The invention relates to a positioning device (1) comprising a positioning unit (2) having at least one piezoelectric actuator (4), a drive element (5) to be coupled with an element (6) to be positioned, and a controller (3). The positioning device has a defect analysis device (16) for detecting defects in the positioning unit (2), wherein the actuator (4) or actuators, in addition to functioning as a drive for the drive element (5), functions or function as a generator (12) or a receiver (13) of ultrasonic sound waves, and the defect analysis device (16) comprises a measurement signal generator (22) for generating a sinusoidal electrical voltage for exciting the or a generator (12) and a resonance analyser (24) for analysing an electrical signal generated by the or a receiver (13). The invention also relates to a method for operating such a positioning device in order to detect defects in the positioning unit (2).

2. 发明授权

US11951041B2 Positioning device, light processor having such a positioning device, and method for laser eye surgery using such a light processor 有权
公开(公告)号：US11951041B2
公开(公告)日：2024-04-09
申请号：US17287060
申请日：2019-09-26
申请人： Physik Instrumente (PI) GmbH & Co. KG
发明人： Mathias Rosenkranz
IPC分类号： A61F9/008
CPC分类号： A61F9/00804 , A61F2009/00887
摘要： The present disclosure relates to a positioning device for positioning an object in a positioning plane. To minimize the position error (contouring error) in a continuous orbital travel in contrast to two linear adjusters (X and Y) arranged at a right angle to each other, the positioning device includes two rotation drives having different diameters and an object receiver for receiving the object. The object receiver is coupled to a first of the two rotation drives, which in turn is coupled to the second of the two rotating drives so that the object receiver is rotatable about the axes of rotation (A2, A3) of both rotation drives that are offset in parallel, and is thereby adjustable in the positioning plane. A light processor having such a positioning device, and a method for laser eye surgery using such a light processor are also disclosed.

3. 发明授权

US11927213B2 Joint 有权
公开(公告)号：US11927213B2
公开(公告)日：2024-03-12
申请号：US16628488
申请日：2018-07-04
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： Reinhard Hübner
IPC分类号： F16C11/12
CPC分类号： F16C11/12 , Y10T403/45 , Y10T403/54
摘要： The disclosure relates to a joint, which has at least three degrees of rotational freedom, having a rigid carrier element and at least two elastically deformable joint elements formed on the carrier element in an overlapping arrangement, at least in sections. Each joint element can include two rod-shaped web portions arranged on the carrier element and extending therefrom which are arranged either converging or diverging relative to each other, and at their end facing away from the carrier element are connected to each other by way of a contact portion. Two web portions connected to each other extend in a first common plane and two other web portions connected to each other extend in a second common plane, and the first common plane and the second common plane intersect.

4. 发明授权

US11885367B2 Spindle nut 有权
公开(公告)号：US11885367B2
公开(公告)日：2024-01-30
申请号：US16764316
申请日：2018-11-15
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： Reinhard Hübner
IPC分类号： F16B39/10 , F16B39/12
CPC分类号： F16B39/10 , F16B39/12
摘要： Spindle nut which can be brought into engagement with or engages with a corresponding spindle, wherein the spindle nut comprises an internal thread which is defined by three longitudinal grooves, which run in a direction parallel to a central thread axis A of the spindle nut, which is interrupted, as a result of which three spaced-apart internal thread segments are formed in the spindle nut, and, in case the spindle nut is in engagement with the spindle, the external thread of the spindle is in contact only with the internal thread segments, wherein the spindle nut, with respect to a cross section arranged perpendicular to its central thread axis A, comprises a cross section geometry with an inner cross-section curve K facing the central thread axis, wherein at least the inner thread segments each form a partial circle shaped section of the cross section curve K, wherein the diameter of each partial circle shaped section corresponds to the core diameter of the internal thread, and the partial circle shaped sections of the cross-section curve K are connected via transition sections to longitudinal groove sections of the cross section curve K which are formed by the longitudinal grooves, wherein a distance a between the two transition sections adjoining a longitudinal groove section is smaller than a distance b between the two transition sections which adjoin a partial circle shaped section.

5. 发明公开

US20240021351A1 ADJUSTMENT DEVICE, ADJUSTMENT SYSTEM AND COMPUTER PROGRAM PRODUCT 审中-公开
公开(公告)号：US20240021351A1
公开(公告)日：2024-01-18
申请号：US18026053
申请日：2021-09-13
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： Daniel GEISSLER
IPC分类号： H01F7/122 , H01F7/16 , H01F7/18
CPC分类号： H01F7/122 , H01F7/1646 , H01F7/1844
摘要： Adjustment device, comprising: a base component (B1), an adjustment body (10), at least one flexure hinge (21), by means of which the adjustment body (10) is rotatably hinged on the base component (B1) about a flexure hinge rotation axis (D1), and at least one drive device (C), which is coupled to the base component (B1) and to an adjustment body connection device (AV), in order to move the same relative to each other, wherein the drive device (C) comprises an actor (60) which comprises an electrical coil (71) with a coil axis (AS) extending along the flexure hinge rotation axis (D1) and a compensation component (80) of a magnetizable or magnetized material and at least one permanent magnet segment (MS), which is disposed beside the actor (60) movably beside the same, wherein the magnet field lines in the interior of the permanent magnet segment (MS) extend along the coil axis (AS), and an adjustment system, an computer program product.

6. 发明授权

US11717957B2 Positioning device 有权
公开(公告)号：US11717957B2
公开(公告)日：2023-08-08
申请号：US17607440
申请日：2020-04-28
申请人： Physik Instrumente (PI) GmbH & Co. KG
发明人： Stephanie Huber , Christian Rudolf , Harry Marth
IPC分类号： B25J9/10 , B25J9/00
CPC分类号： B25J9/0069 , B25J9/10
摘要： A positioning device is disclosed which can include a base and a positioning element, which is configured to be adjusted with respect to six degrees of freedom relative to the base, wherein the positioning element is coupled to the base via at least three pairs of length-variable and electrically driven leg elements, and each leg element is connected, at its respective ends, to the base and the positioning element via an articulation element. A respective pair of legs projects through another pair of legs and each pair of legs is arranged perpendicular to the respective other pairs of legs. According to exemplary embodiments, each of the articulation elements associated with a leg element has only two axes of rotation (DA), which are arranged perpendicular to each other, so that the articulation elements allow pivotal movements of each respective leg element in precisely two planes that are perpendicular to each other and run through a longitudinal axis of the leg element, and at the same time prevent a rotational movement about a longitudinal axis of the leg element.

7. 发明授权

US11664745B2 Ultrasonic actuator for a rotary drive 有权
公开(公告)号：US11664745B2
公开(公告)日：2023-05-30
申请号：US17272323
申请日：2019-08-29
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： Burhanettin Koc
IPC分类号： H02N2/00
CPC分类号： H02N2/002 , H02N2/0055 , H02N2/0065 , H02N2/0075
摘要： The invention relates to an annular or hollow cylindrical ultrasonic actuator, on the end faces of which are arranged n≥2 friction elements, and on the outer peripheral surface of which are arranged 2n excitation electrodes, spaced apart from one another in each case by a separating gap, each of the friction elements being arranged in the region of a separating gap, wherein, between friction elements that are adjacent with respect to the periphery of the ultrasonic actuator and are located on different end faces, two excitation electrodes are arranged such that, when the ultrasonic actuator is electrically excited, the friction elements of both end faces simultaneously perform a movement which is suitable for driving an element to be driven to rotate in the same direction. The invention further relates to an ultrasonic motor having an ultrasonic actuator of this kind and having a holding device in which the ultrasonic actuator is inserted.

8. 发明授权

US11637508B2 Linear drive for precision positioning 有权
公开(公告)号：US11637508B2
公开(公告)日：2023-04-25
申请号：US17284711
申请日：2019-10-16
申请人： Physik Instrumente (PI) GmbH & Co. KG
发明人： Burhanettin Koc
IPC分类号： H02N2/02 , H02N2/04
摘要： The present disclosure relates to a linear drive, including: an actuator unit with at least one actuator; two guide elements and a movement element, wherein the movement element is displaceable along both guide elements by a movement generated by the actuator unit as a result of a stick-slip effect. In order to allow a more accurate displacement of the movement element in a compact design of the linear drive, the movement element can be brought into engagement with each of the two guide elements by static friction in order to be displaced along the two guide elements as a result of the stick-slip effect.

9. 发明申请

US20230063046A1 ROTATION ACTUATING DEVICE AND METHOD FOR OPERATING A ROTATION ACTUATING DEVICE OF THIS TYPE 有权
公开(公告)号：US20230063046A1
公开(公告)日：2023-03-02
申请号：US17765823
申请日：2020-10-02
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： Dominik BOCSKAI , Harry MARTH
IPC分类号： H02N2/10
摘要： The invention relates to a rotation actuating device (1), comprising a base (2), a rotor (3) and at least two groups (40, 42) of drive units, each group comprising at least two drive units (4), wherein the drive units (4) are arranged peripherally on the base (2) and between the base and the rotor (3), wherein each drive unit (4) comprises two deflectable actors (5), which are arranged in a V-shape with respect to each other, and a friction element (6), which is connected to both actors, and wherein the rotor (3) and the friction elements (6) are pressed in a direction toward each other by means of a spring device (30) arranged between the drive units (4), such that, when the actors (5) are not deflected, all the friction elements (6) are in contact with the rotor (3) and jointly span a contact plane (K), wherein a continuous movement of the rotor (3) is realized by means of phase-offset control of the actors (5) of different groups (40, 42) of drive units (4). The invention further relates to a method for operating the rotation actuating device

10. 发明申请

US20230013386A1 ADJUSTING DEVICE 有权
公开(公告)号：US20230013386A1
公开(公告)日：2023-01-19
申请号：US17785949
申请日：2020-12-09
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： Thomas BOCHER , Lukas RAU , Tomas NAVRATIL , Michael ERNST , Axel GRABOWSKI , Matthias SCHULZ
IPC分类号： G02B7/08 , H02K49/10 , G01B21/00
摘要： An adjusting device is provided for positioning an object. The adjusting device includes a base and a supply line. The base is configured to move an object that is connectable to the base in the connected state along a path of motion in a position-controlled manner. The supply line supplies the energy and/or signal transmission to and/or from the base. The supply line is coupled to the base in a reversibly detachable manner.

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