WO2012000714A1 - Dispositif de création d'un marquage laser - Google Patents

Dispositif de création d'un marquage laser Download PDF

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Publication number
WO2012000714A1
WO2012000714A1 PCT/EP2011/058056 EP2011058056W WO2012000714A1 WO 2012000714 A1 WO2012000714 A1 WO 2012000714A1 EP 2011058056 W EP2011058056 W EP 2011058056W WO 2012000714 A1 WO2012000714 A1 WO 2012000714A1
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WO
WIPO (PCT)
Prior art keywords
laser
optical element
laser beam
laser beams
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2011/058056
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German (de)
English (en)
Inventor
Thomas Zimmermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2012000714A1 publication Critical patent/WO2012000714A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/002—Active optical surveying means
    • G01C15/004—Reference lines, planes or sectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/106—Beam splitting or combining systems for splitting or combining a plurality of identical beams or images, e.g. image replication
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/143—Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity

Definitions

  • the invention relates to a device for generating laser marking
  • Laser markings in particular for generating laser lines and laser spots for use in leveling tasks.
  • rotary lasers a rotary laser typically consists of one
  • the body a head rotatable with respect to the body, a motor, a laser source disposed on the rotatable head which generates a laser beam, and leveling means.
  • the rotation laser is mounted on a tripod and aligned with the leveling means.
  • the rotatable head is rotated by the motor, so that the laser beam also rotates and generates a reference plane aligned with the solder. If the rotating laser beam strikes a surface, it generates a laser line there.
  • the leveling staff has a scale on which the reference level generates a marking.
  • the leveling staff is placed in the two locations and the vertical distance of the reference plane from the ground is read off the mark on the leveling staff.
  • the second body is not rotated. If the laser beam strikes a surface, it generates a laser spot there.
  • the laser beam can from the
  • DE10116018 Al and DE10054627 AI describe such devices for generating laser markings.
  • rotary lasers are also classified into laser classes, which is dependent on the power of the laser beam generated by the laser source.
  • the laser beam of a device for producing laser markings may reach at most a power of 1 mW so that the device is still classified as laser class 2.
  • this power is so low that in bright ambient light or when there is a large distance between the rotating laser and the leveling staff, the marking created on the leveling staff by the reference plane is difficult to recognize.
  • the device according to the invention should continue to be designed for generating a laser light-based, rotatable coordinate system.
  • An apparatus for producing a laser mark according to the present invention comprises a first body, a second body, a laser source and an optical element.
  • the second body is freely rotatable connected to the first body about an axis of rotation, that is, the first body and the second body can be rotated against each other, but not moved.
  • the first body and the second body can be completely rotated against each other as often as desired.
  • Examples of combinations of first bodies and second bodies according to the invention are devices which are connected rotatably via an axle and an axle bearing, in particular a radial bearing.
  • the laser source can generate a first laser beam.
  • Suitable laser sources are devices which can generate a substantially collimated laser beam.
  • An example of a laser source according to the invention is a combination of laser diode and collimator lens for producing a substantially collimated laser beam.
  • a laser fan according to the invention is a laser beam whose beam bundles are divergent in a first spatial direction and are substantially collimated in a second spatial direction which is perpendicular to the first spatial direction.
  • An inventive laser fan has a propagation plane which is spanned by the propagation directions of the individual beam bundles of the laser fan.
  • a laser fan has an aperture angle, wherein the aperture angle is the angle enclosed by the two marginal beams of the laser fan.
  • An inventive laser fan can be generated for example by a cylindrical lens.
  • the advantage of the device according to the invention is that the reference plane generated is much better visible with the same laser class than with conventional rotary lasers.
  • This advantage results from the advantageous combination of the first body, the second body and a laser source with the optical element.
  • a single second laser beam instead of a single second laser beam, at least two second laser beams or at least one laser fan are used according to the invention to generate the reference plane.
  • the Total laser power is multiplied - the laser class of the device remains the same. This follows from the fact that the classification of the laser class is not based on the total laser power of the system, but on the laser power per area or per laser beam.
  • the second laser beams or the at least one laser fan can be used as a rotatable coordinate system.
  • the second laser beams may be configured to provide a Cartesian coordinate system that can assist a user in engineering and design
  • the arrangement of the second laser beams or the at least one laser fan with respect to the second body is substantially independent of the angular position of the second
  • the laser source is connected to the first body.
  • the first body has an im
  • the laser source is connected to the stationary first body and not to the rotatable second body. This is on the one hand advantageous because the mass of the rotatable second body is not increased by the laser source. On the other hand, this is advantageous because no means for controlling the laser source and supplying the laser source with power on the rotatable second body, such as electrical sliding contacts or inductive
  • the first laser beam in relation to the rotatable second body always the same position.
  • the first laser beam can be fed into the optical element independently of the angular position of the second body relative to the first body.
  • this embodiment makes it possible to generate the second laser beams so that the arrangement of the second laser beams with respect to the second body in the
  • the laser source is connected to the second body.
  • a power supply of the laser source via an electrical sliding contact.
  • Examples of an electrical sliding contact according to the invention are carbon brushes or slip ring systems.
  • Element comprises a reflective optical element for creating a third laser beam from the first laser beam, wherein the third laser beam is substantially orthogonal to the axis of rotation.
  • the optical element further comprises a fan-out optical element for producing the second laser beams or the at least one laser fan from the third laser beam.
  • This embodiment has the advantage that a plurality of second laser beams or at least one laser fan can be created in a simple manner.
  • the first laser beam is deflected via a reflective optical element substantially orthogonal to the axis of rotation to a third laser beam.
  • the third laser beam impinges on a fan-out optical element and a multiplicity of second laser beams or at least one laser fan is formed.
  • a laser fan or a plurality of laser fans the second laser beams or the propagation plane of a laser fan or the propagation planes of a laser beam can preferably be used
  • a plurality of laser compartments lie in a plane which is orthogonal to the axis of rotation.
  • the second laser beams or the at least one laser fan may be arranged in other, certain directions, for example to produce a coordinate system.
  • a reflective optical element according to the invention are prisms, in particular pentaprisms, or mirrors.
  • the inventive fanning may be a diffractive optical element, such as optical grating or acousto-optic modulators, or a refractive optical element, such as a cylindrical lens for producing a laser fan.
  • the fanning-out optical element can be moved out of the beam path of the third laser beam. This embodiment has the advantage of allowing the user to use the device with fanning or without fanning the third laser beam.
  • the device further comprises a linear motor and a switch.
  • the extendable fan-out optical element is coupled to the linear motor and the linear motor is electrically connected to a switch.
  • the fanning-out optical element can be automatically moved into the beam path of the third laser beam or out of the beam path of the third laser beam. This is particularly advantageous if the fanning element is not accessible to the user.
  • An example of a linear motor according to the invention is a
  • a relay is used as the switch according to the invention, wherein the relay is an electrically operated, remotely operated switch with two switching positions, and wherein the relay is activated via a control circuit.
  • the remote-controlled switch is arranged on the rotatable second body.
  • the control circuit is arranged in the first body.
  • a relay according to the invention is a reed relay: a reed relay has a reed switch with two contact tongues, which are sealed under vacuum or inert gas in a glass flask. The two reeds of the reed switch form a contact spring and a magnet armature.
  • Contact tongues are made of precious metal, for example ferromagnetic material produced.
  • a contact operation is effected by an externally applied magnetic field, which is generated by the control circuit either by means of a brought into the vicinity of the remote-controlled switch permanent magnet or a magnetic coil. Due to the externally applied magnetic field, the two contact tongues attract and thus close the circuit. If the externally applied magnetic field drops and falls below a certain field strength in the relay, the contact reopens due to a spring action of the contact spring.
  • the reflective optical element is a pentaprism.
  • a pentaprism has the advantage that it deflects the incoming first laser beam substantially at right angles, even if the pentaprim is not perfectly aligned with the first laser beam.
  • the pentaprism has a first reflective surface on which the first laser beam is first reflected within the pentaprism and which transmits a portion of the first laser beam.
  • a prism is arranged at the first reflecting surface of the pentaprism.
  • the prism is configured to align the transmitted portion of the first laser beam substantially along the axis of rotation.
  • the optical element has a beam splitter for producing the second laser beams from the first laser beam.
  • This embodiment has the advantage that no combination of reflective optical element and fan-out optical element is required for generating a plurality of second laser beams.
  • a beam splitter is sufficient to produce a plurality of second laser beams.
  • Beam splitters have the advantage that they can be produced with a very high angular accuracy of + / "0.005 °. [5 0,00] Suitable beam splitters are devices which have a plurality of can generate second laser beams from the first laser beam.
  • An example of a beam splitter according to the invention is a pyramid, which has reflective lateral surfaces.
  • a beam splitter is a substantially pyramid-shaped body having a central, continuous opening, and further comprising the reflective lateral surfaces.
  • a Cartesian coordinate system can be produced with the aid of the latter embodiment of the beam splitter: for this purpose the pyramidal body has four lateral surfaces which are designed to produce four second laser beams, the second laser beams being orthogonal to the first laser beam, and wherein each of the second laser beams second
  • Laser beams orthogonal to two second laser beams An inner part of the first laser beam is transmitted through the through-hole of the beam splitter.
  • the inner part of the first laser beam and the four second laser beams thus span a Cartesian coordinate system, which due to the high angular accuracy of the beam splitter also a high
  • the optical element has a beam splitter for producing at least two third laser beams, wherein the third laser beams are substantially orthogonal to the axis of rotation.
  • the optical element further comprises at least two fanning-out optical elements for producing the second laser beams or the at least one laser fan from the third laser beams, wherein a fanned-out optical element is uniquely associated with each third laser beam.
  • This embodiment has an advantageous combination of a beam splitter and fanning optical elements, wherein the advantageous combination increases the maximum number of producible second laser beams or laser fan. For example, the number of producible second laser beams in the embodiment with only one beam splitter due to production is limited.
  • the aperture angle of the marginal rays of the second laser beams or the aperture angle of the laser fan is limited - the aperture angle is typically less than 160 ° in both cases. For example, if a beam splitter with two optical gratings is combined to generate second laser beams, the maximum number of generators that can be generated is second
  • Laser beams compared to the embodiment with only one optical Doubled grids for generating second laser beams.
  • 320 ° instead of only 160 ° of the space is covered by the laser beams.
  • three or four cylindrical lenses can even create a seamless laser plane - a rotation operation of the device for generating a laser plane is no longer necessary.
  • the fanning-out optical elements can be moved out of the beam paths of the third laser beams.
  • This embodiment has the advantage that the user has the possibility of using the device with fanning the third laser beams to produce a laser plane or without fanning the third laser beams to produce a coordinate system.
  • the Navigerbaren fanning optical elements are coupled to linear motors and the linear motors connected to a switch, in particular a reed switch.
  • a switch in particular a reed switch.
  • the fanning-out optical elements can be automatically moved into the beam paths of the third laser beams or out of the beam paths of the third laser beams. This is particularly advantageous if the fan-out elements are not accessible to the user.
  • the device further comprises at least one linear motor and a switch.
  • the Pleasebewegbaren fanning optical elements are coupled to the at least one linear motor and the at least one linear motor is electrically connected to a switch. With the aid of the switch and the at least one linear motor, the fanning-out optical elements can be moved automatically into the beam path of the third laser beam or out of the beam path of the third laser beam. This is particularly advantageous if the fanning element is not accessible to the user.
  • An example of a linear motor according to the invention is a voice coil motor.
  • a relay is used as the switch according to the invention, wherein the relay is an electrically operated, remotely operated switch with two switching positions, and wherein the relay is activated via a control circuit.
  • the remote-controlled switch is arranged on the rotatable second body.
  • the control circuit is arranged in the first body.
  • a relay according to the invention is a reed relay: a reed relay has a reed switch with two contact tongues, which are sealed under vacuum or inert gas in a glass flask.
  • the two reeds of the reed switch form a contact spring and a magnet armature.
  • the contact tongues are made, for example, of noble metal-coated ferromagnetic material.
  • Apparatus further comprises a motor for rotating the second body with respect to the first body and leveling means for aligning the first body with respect to a tripod and / or the solder.
  • leveling means are devices which can tilt a body about two mutually perpendicular axes.
  • the second laser beams are substantially orthogonal to the axis of rotation. This embodiment has the advantage that the second laser beams lie in the same plane, in particular independently of the angular position of the second body relative to the first body.
  • the motor makes it possible to rotate the second body to produce a reference plane with the second laser beams. If the rotating second laser beams hit a surface, they create a laser line there.
  • the user can align the first body and thus also an angular position of the reference plane with respect to, for example, a tripod and / or the solder by means of the leveling means.
  • the leveling means may include tilt sensors and servo motors, wherein the tilt sensors are adapted to determine the angular position of the first body with respect to the solder, and wherein the servomotors are suitable depending on the angular position of the first body with respect to the solder the first body and Accordingly, the reference plane automatically align with respect to the solder.
  • the device further comprises a cap which surrounds the optical element.
  • the cap may be part of an outer housing of the device.
  • the cap may have one or more windows such that the second laser beams are not blocked by the cap of the second body.
  • the one or more windows consist of either openings in the cap or of a material that is permeable to the second laser beams.
  • the entire cap may be made of a material which is permeable to the second laser beams.
  • the fanning-out optical element is a diffractive element or the fanning-out optical elements are diffractive optical elements.
  • the fanning-out optical element is a refractive element or the fanning-out optical elements are refractive optical elements.
  • Fig. 1 is a perspective view of a first preferred embodiment
  • Fig. 2 is a schematic x-z sectional view of the first preferred
  • Embodiment of the device according to the invention (main image) and a schematic x-y sectional view of the second laser beams of this embodiment (inserted image);
  • Fig. 3 is a perspective view of a second preferred embodiment
  • Fig. 4 is a schematic x-z sectional view of the second
  • Fig. 5 is a schematic x-z sectional view of a third
  • the device according to the invention comprises a first body (1) and a second body (2).
  • the first body (1) has an axle bearing (3).
  • the second body (2) has a substantially cylindrically symmetrical hollow axle (4).
  • the first body (1) and the second body (2) are connected via the axle bearing (3) of the first body (1) and the substantially cylindrically symmetrical hollow axle (4) of the second body. The connection of the first
  • Body (1) and the second body (2) is designed so that the two against each other substantially not displaceable, but about a rotation axis (5) are rotatable.
  • a laser source (6) is arranged, which has a laser diode (7) and a collimator lens (8).
  • the laser source (6) generates a first laser beam (9), wherein the
  • the first embodiment of the device according to the invention further comprises a motor (10) which is arranged between the first body (1) and the second body (2).
  • the motor (10) can set the second body (2) in rotation with respect to the first body (1).
  • the second body (2) has an optical element (11) which in the first embodiment has a pentaprism (12) and a diffractive optical element (13).
  • the pentaprism (12) receives the first laser beam (9) and directs the first laser beam (9) in
  • the third laser beam (14) is directed to the diffractive optical element (13) which generates fifteen second laser beams (15) from the third laser beam (14).
  • the second laser beams (15) are arranged substantially orthogonal to the rotation axis (5) in a plane and like a fan with an opening angle of 30 °, that is, the two of the second laser beams (15) with an opening angle of substantially 30 ° and cut each of the other thirteen second laser beams (15) two second laser beam (15) with an opening angle of substantially 30/14 °.
  • the pentaprism (12) has a first reflective surface (16) at which the first
  • a prism (18) is disposed on the first reflective surface of the pentaprism (16), the prism (18) being configured to align the transmitted portion of the first laser beam (9) substantially along the axis of rotation (5).
  • the prism (18) has the same refractive index as that
  • the device further comprises a cap which is part of an outer housing of the device.
  • the cap surrounds the optical element (11).
  • the cap is made of a plastic which is permeable to the second laser beams (15). The cap does not deflect the second laser beams (15).
  • the pentaprism (12) and the beam path of the first laser beam (9), the second laser beams (15) and the third laser beam (14) of the first embodiment can be seen:
  • the first laser beam (9) penetrates the pentaprism (12) from a side (19) facing the first body (1).
  • the first reflecting surface (16) a part of the first laser beam (9) is reflected and a part (17) of the first laser beam (9) is transmitted.
  • 70% of the laser radiation is reflected and 30% transmitted.
  • the reflected laser beam is still reflected at a second reflective surface (20).
  • the reflection at the second reflecting surface (20) produces the third laser beam (14), which is orthogonal to the first laser beam (9).
  • the third laser beam (14) emerges from the pentaprism (12) and strikes a diffractive optical element (13).
  • the diffractive optical element (13) in this embodiment is an optical grating (13) and generates from the third laser beam (14) fifteen second laser beams (15) all orthogonal to the rotation axis (5) and like a fan having an opening angle of 30 ° are arranged. That is, two of the second laser beams (15) intersect at an opening angle of substantially 30 °, and each of the other thirteen second laser beams (15) intersects two second laser beams (15) with an opening angle of substantially 30/14 °. In a rotation of the second body (2) relative to the first body (1) there is no change in the position of the second laser beams (15) with respect to the second body (2).
  • the second embodiment differs from the first embodiment by the optical element (11).
  • the optical element (11) of the second embodiment has a beam splitter (22).
  • the beam splitter (22) has a cylindrical
  • the cylindrical portion (23) and the pyramidal portion (24) are connected to each other via a flat surface (25) of the cylindrical portion (23) and a base surface (26) of the pyramidal portion (24) and form a coherent body.
  • Tip (27) of the pyramidal portion (24) lies on a rotational symmetry axis (28) of the cylindrical portion (23).
  • the four lateral surfaces (29) of the pyramidal portion (24) are reflective surfaces.
  • the beam splitter (22) has a continuous cylindrical
  • the rotational symmetry axis (28) of the cylindrical portion (23) is substantially identical to the axis of rotation (5) and the axis of symmetry of the first laser beam (9).
  • the four reflective lateral surfaces (29) of the pyramidal section (24) and the continuous cylindrical opening (30) of the beam splitter (22) are dimensioned and arranged such that an inner part of the first laser beam (9) passes through the continuous cylindrical opening (30). of the beam splitter (22) and an outer part (32) of the first laser beam (9) is divided into four second laser beams (15).
  • the four second laser beams (15) are orthogonal to the axis of rotation and each of the second laser beams (15) intersects two other second laser beams (15) with an aperture angle of substantially 90 °.
  • the optical element (11) further comprises a sheath (33) surrounding the optical element (11).
  • Enclosure (33) of the optical element (11) has openings (34) so that the second laser beams (15) are not blocked by the cladding (33) of the optical element (11). Furthermore, the device has a cap which is part of an outer housing of the device. The cap surrounds the optical element (11). The cap is made of a plastic material for the second laser beams (15) is permeable. The cap does not deflect the second laser beams (15) substantially.
  • the optical element (11) further comprises four diffractive optical elements (13).
  • the optical element (11) has a beam splitter (22).
  • the beam splitter (22) has a cylindrical portion (23) and a pyramidal portion (24) with five corners.
  • the cylindrical portion (23) and the pyramidal portion (24) are connected to each other via the flat surface (25) of the cylindrical portion (23) and the base surface (26) of the pyramidal portion (24) and form a coherent body.
  • the tip (27) of the pyramidal portion (24) lies on a rotational symmetry axis (28) of the cylindrical portion (23).
  • the beam splitter (22) has a continuous cylindrical opening (30).
  • the rotational symmetry axis (28) of the cylindrical portion (23) is in the
  • the four reflective lateral surfaces (29) of the pyramidal section (24) and the continuous cylindrical opening (30) of the beam splitter (22) are dimensioned and arranged such that an inner part of the first laser beam (9) passes through the continuous cylindrical opening (30). of the beam splitter (22) and an outer part (32) of the first laser beam (9) is divided into four third laser beams (14).
  • the four third laser beams (14) are orthogonal to the axis of rotation and each of the third laser beams (14) intersects two other third laser beams (14) with an aperture angle of substantially 90 °.
  • Each of the four third laser beams (14) strikes one of the four diffractive optical elements (13), which in this embodiment are optical gratings (13).
  • the diffractive optical elements (13) generate fifteen second laser beams (15) from the third laser beam (14), all of which are orthogonal to the axis of rotation (5) and arranged like a fan having an aperture angle of 30 °. That is, two of the second laser beams (15) interfere with cut an opening angle of substantially 30 ° and cut each of the other thirteen second laser beams (15) two second laser beam (15) with an opening angle of substantially 30/14 °.
  • a rotation of the second body (2) relative to the first body (1) results in substantially no change in the position of the second laser beams (15) with respect to the second body (2).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Laser Beam Processing (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

L'invention concerne un dispositif de création d'un marquage laser, comportant : a) un premier corps, b) un deuxième corps relié au premier corps de manière à pouvoir tourner librement autour d'un axe de rotation, c) une source laser pour générer un premier faisceau laser, et d) un élément optique relié au deuxième corps. Selon l'invention, l'élément optique est réalisé pour générer au moins deux deuxièmes faisceaux laser ou au moins un éventail laser à partir du premier faisceau laser.
PCT/EP2011/058056 2010-07-02 2011-05-18 Dispositif de création d'un marquage laser Ceased WO2012000714A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010030861 DE102010030861A1 (de) 2010-07-02 2010-07-02 Vorrichtung zum Erzeugen einer Lasermarkierung
DE102010030861.7 2010-07-02

Publications (1)

Publication Number Publication Date
WO2012000714A1 true WO2012000714A1 (fr) 2012-01-05

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PCT/EP2011/058056 Ceased WO2012000714A1 (fr) 2010-07-02 2011-05-18 Dispositif de création d'un marquage laser

Country Status (2)

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DE (1) DE102010030861A1 (fr)
WO (1) WO2012000714A1 (fr)

Cited By (1)

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DE102012104875A1 (de) * 2012-06-05 2013-12-05 Technische Universität München Verfahren zur Installation von Sensoren in Rotorblättern und Installationsvorrichtung

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EP3438525B1 (fr) 2017-08-04 2020-01-08 Atlas Material Testing Technology GmbH Dispositif d'éclairage pour un dispositif de simulation d'un accident de véhicule

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WO1998053273A1 (fr) * 1997-05-23 1998-11-26 Lasertec International Dispositif de positionnement a laser
DE10054627A1 (de) 2000-11-03 2002-05-16 Nestle & Fischer Gmbh & Co Kg Verfahren und Vorrichtung zum Ausrichten eines von einem Rotationslaser erzeugten Lichtstrahls
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GB2416843A (en) * 2004-08-06 2006-02-08 Irwin Ind Tool Co Laser line generating device with graduated base
EP1632747A2 (fr) * 2004-09-03 2006-03-08 Kabushiki Kaisha TOPCON Appareil laser rotatif
DE202006009771U1 (de) * 2005-06-30 2006-10-05 Nanjing Chervon Industry Co., Ltd., Nanjing Laser-Nivelliergerät
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WO1998053273A1 (fr) * 1997-05-23 1998-11-26 Lasertec International Dispositif de positionnement a laser
DE10054627A1 (de) 2000-11-03 2002-05-16 Nestle & Fischer Gmbh & Co Kg Verfahren und Vorrichtung zum Ausrichten eines von einem Rotationslaser erzeugten Lichtstrahls
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DE102012104875A1 (de) * 2012-06-05 2013-12-05 Technische Universität München Verfahren zur Installation von Sensoren in Rotorblättern und Installationsvorrichtung
US9284950B2 (en) 2012-06-05 2016-03-15 Technische Universität München Method for installation of sensors in rotor blades and installation apparatus

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