Patents by Inventor Lieu-Kim Dang

Lieu-Kim Dang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9568311
    Abstract: An optical system for shaping a laser beam is disclosed. The system includes a first optical element that has a lateral surface which is designed as a reflecting surface for the laser beam, where the lateral surface reshapes the laser beam at least in some segments thereof into a ring-shaped laser beam. The at least segmentally ring-shaped laser beam propagates in a propagation plane. A further optical element is provided for shaping the ring-shaped laser beam that shapes the ring-shaped laser beam at least in some segments thereof in a plane parallel to the propagation plane of the laser beam.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 14, 2017
    Assignee: Hilti Aktiengesellschaft
    Inventors: Lieu-Kim Dang, Christoph Wuersch
  • Patent number: 9025231
    Abstract: A laser system (1) for creating a laser marking (23) on a substrate (4, 7), having a laser device (2) with a beam source (11) that emits a laser beam (14) along a first optical axis (16), and having a deflection unit (3) with a deflection lens (19) that deflects the laser beam (14) along a second optical axis (22), whereby the first and second optical axes (16, 22) are arranged at an angle of 90°, and the deflection unit (3) can be adjusted with respect to the laser device (2).
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: May 5, 2015
    Assignee: Hilti Aktiengesellschaft
    Inventors: Lieu-Kim Dang, Christoph Wuersch
  • Patent number: 8994927
    Abstract: A measuring device for the measurement of a distance to a target object has a beam source which is designed as an electrical-optical component and which emits a transmission beam. A detector, which is designed as a further electrical-optical component, receives a reception beam that is reflected and/or scattered by the target object. A beam splitting lens is configured to deflect the transmission and/or reception beam. Alternatively or additionally, the measuring device includes a beam shaping lens is configured for shaping the transmission and/or reception beam. A lens support is configured to accommodate the electrical-optical components. The lens support also accommodates the beam splitting lens and/or the beam shaping lens. The lens support has a first wafer for accommodating the electrical-optical components and a second wafer for accommodating the beam splitting lens, and/or the beam shaping lens.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 31, 2015
    Assignee: Hilti Aktiengesellschaft
    Inventor: Lieu-Kim Dang
  • Patent number: 8919002
    Abstract: A laser system for creating a linear laser marking, including a radiation source that emits a laser beam and that emits it along a direction of propagation, a focusing lens assembly with an optical axis, and a conical mirror that, at least in certain areas, is configured as a straight cone with a cone axis and a reflecting lateral surface. The conical mirror is arranged in the beam path of the laser beam behind the focusing lens assembly, and the cone axis is oriented parallel to the optical axis of the focusing lens assembly. The direction of propagation of the laser beam is inclined at an angle relative to the optical axis of the focusing lens assembly.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: December 30, 2014
    Assignee: Hilti Aktiengesellschaft
    Inventor: Lieu-Kim Dang
  • Patent number: 8806767
    Abstract: A laser instrument and a method for adjusting the laser power is disclosed. The laser instrument includes a laser device which generates a laser beam and a rotating device which moves the laser device back and forth around an axis of rotation between a first turning point and a second turning point. The laser beam generates a laser line between a first end point and a second end point on a target surface. A control device is provided which adjusts the laser power of the laser beam as a function of a rotation angle and/or an angular velocity of the rotating device.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: August 19, 2014
    Assignee: Hilti Aktiengesellschaft
    Inventors: Andreas Winter, Sasha Lukic, Lieu-Kim Dang
  • Patent number: 8789956
    Abstract: An optical system for shaping a laser beam includes an optical element with a base member having a lower base, an upper base, and a lateral surface. The lateral surface includes a transmitting surface for the laser beam, and the base member includes a first cutout portion having a lower base arranged in the upper base of the base member, and a lateral surface that has a first reflecting surface for the laser beam and generates an at least segmentally ring-shaped laser beam. The base member includes a second cutout portion having a lower base arranged in the lower base of the base member, an upper base that includes a transmitting surface for the laser beam, and a lateral surface abutting the lower and upper base. The lateral surface includes a second reflecting surface for the at least segmentally ring-shaped laser beam.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: July 29, 2014
    Assignee: Hilti Aktiengesellschaft
    Inventors: Lieu-Kim Dang, Stefan Barth
  • Publication number: 20130016414
    Abstract: A laser system (1) for creating a laser marking (23) on a substrate (4, 7), having a laser device (2) with a beam source (11) that emits a laser beam (14) along a first optical axis (16), and having a deflection unit (3) with a deflection lens (19) that deflects the laser beam (14) along a second optical axis (22), whereby the first and second optical axes (16, 22) are arranged at an angle of 90°, and the deflection unit (3) can be adjusted with respect to the laser device (2).
    Type: Application
    Filed: June 13, 2012
    Publication date: January 17, 2013
    Applicant: Hilti Aktiengesellschaft
    Inventors: Lieu-Kim Dang, Christoph Wuersch
  • Publication number: 20120327662
    Abstract: An optical system for shaping a laser beam is disclosed. The system includes a first optical element that has a lateral surface which is designed as a reflecting surface for the laser beam, where the lateral surface reshapes the laser beam at least in some segments thereof into a ring-shaped laser beam. The at least segmentally ring-shaped laser beam propagates in a propagation plane. A further optical element is provided for shaping the ring-shaped laser beam that shapes the ring-shaped laser beam at least in some segments thereof in a plane parallel to the propagation plane of the laser beam.
    Type: Application
    Filed: December 21, 2011
    Publication date: December 27, 2012
    Applicant: Hilti Aktiengesellschaft
    Inventors: Lieu-Kim Dang, Christoph Wuersch
  • Publication number: 20120188645
    Abstract: An optical system for shaping a laser beam is disclosed. The optical system includes an optical element with a base member having a lower base, an upper base, and a lateral surface. The lateral surface includes a transmitting surface for the laser beam, and the base member includes a first cutout portion having a lower base arranged in the upper base of the base member, and a lateral surface that has a first reflecting surface for the laser beam and generates an at least segmentally ring-shaped laser beam. The base member includes a second cutout portion having a lower base arranged in the lower base of the base member, an upper base that includes a transmitting surface for the laser beam, and a lateral surface abutting the lower and upper base. The lateral surface includes a second reflecting surface for the at least segmentally ring-shaped laser beam.
    Type: Application
    Filed: December 21, 2011
    Publication date: July 26, 2012
    Applicant: Hilti Aktiengesellschaft
    Inventors: Lieu-Kim Dang, Stefan Barth
  • Publication number: 20120187868
    Abstract: A laser instrument and a method for adjusting the laser power is disclosed. The laser instrument includes a laser device which generates a laser beam and a rotating device which moves the laser device back and forth around an axis of rotation between a first turning point and a second turning point. The laser beam generates a laser line between a first end point and a second end point on a target surface. A control device is provided which adjusts the laser power of the laser beam as a function of a rotation angle and/or an angular velocity of the rotating device.
    Type: Application
    Filed: July 20, 2011
    Publication date: July 26, 2012
    Applicant: Hilti Aktiengesellschaft
    Inventors: Andreas WINTER, Sasha Lukic, Lieu-Kim Dang
  • Publication number: 20110280017
    Abstract: An optical system is provided for shaping a laser beam, having a first optical element which is designed at least partially as a base body, the base body having a base surface area and having a curved surface area which abuts said base surface area. The base surface area and the curved surface area are designed at least partially as transmission surfaces for the laser beam, and the base body has a recess with a curved surface area, wherein the curved surface area is designed at least partially as a reflecting surface for the laser beam.
    Type: Application
    Filed: May 10, 2011
    Publication date: November 17, 2011
    Inventor: Lieu-Kim Dang
  • Patent number: 7593172
    Abstract: An optical assembly has an optics carrier (2) which is adjustable with respect to an axis (A) and to which at least two optical elements are fixedly connected, with the optics carrier (2) including at least two partial carriers (5a, 5b), each of which secures an optical element, and with the two partial carriers (5a, 5b) being connected to one another by at least three axially elongate, flexible connection members (6) which are spaced apart in a plane and secured by frictional engagement in corresponding associated connection openings (8) so as to be displaceable axially.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: September 22, 2009
    Assignee: Hilti Aktiengesellschaft
    Inventors: Roman Steffen, Lieu-Kim Dang, Detlef Juesten
  • Publication number: 20090154510
    Abstract: An optoelectrical assembly (1) has a modular frequency-doubled solid state laser (2), which is fixed so as to be aligned therein, with an optical resonator (3) which is connected in a thermally conducting manner to a heat source (5) which is controllable by controlling means (4). The operating temperature (T) of the solid state laser (2) is adjusted by the controlling means (4) to between 40° C. and 55° C.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Inventors: Stefan Tiefenthaler, Lieu-Kim Dang
  • Patent number: 7342732
    Abstract: An optical mount (1) for optical component (2) which has a edge contour (4) relative to extending radially optical axis (A), includes a rigid optical support (3) having an axially oriented stop edge (5), which is suitable for an axial contact with the optical component (2), and at least one flexible spring element which is arranged radially outside the stop edge (5), extends axially on the component side and is curved radially inward. The radial spring element passes at an axial distance from the stop edge into a circumferentially closed jacket sleeve an inner contour (8) of which extends farther radially than the edge contour (4) of the optical component (2).
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: March 11, 2008
    Assignee: Hilti Aktiengesellschaft
    Inventors: Lieu-Kim Dang, Roman Steffen, Mustafa Kücük, Christian Haefele
  • Patent number: 7280459
    Abstract: A device for reading from and/or writing to optical recording media 10, on which information is present in the form of pits, with a linearly polarized light beam 2. A device for reading from and/or writing to optical recording media 10 which ensures correct reproduction of the stored data even when the recording medium influences the polarization of the light beam 2.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: October 9, 2007
    Assignee: Thomson Licensing
    Inventors: Lieu-Kim Dang, Heinz-Jörg Schröder
  • Patent number: 7268951
    Abstract: An optical beam splitter (1) for a light beam (2) that is parallel along a beam axis (A) has a transparent central area (3) and a plurality of reflecting reflector surfaces (4a, 4b) that are respectively inclined by a reflector angle (?) relative to the beam axis (A) for generating each a discrete spot beam (5a, 5b), with the central area (3) being convexly curved in the manner of a prism at least in part and/or has beam-expanding diffractive optics (19).
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: September 11, 2007
    Assignee: Hilti Aktiengesellschaft
    Inventors: Lieu-Kim Dang, Reinhard Waibel
  • Publication number: 20070195436
    Abstract: An optical mount (1) for optical component (2) which has a edge contour (4) relative to extending radially optical axis (A), includes a rigid optical support (3) having an axially oriented stop edge (5), which is suitable for an axial contact with the optical component (2), and at least one flexible spring element which is arranged radially outside the stop edge (5), extends axially on the component side and is curved radially inward. The radial spring element passes at an axial distance from the stop edge into a circumferentially closed jacket sleeve an inner contour (8) of which extends farther radially than the edge contour (4) of the optical component (2).
    Type: Application
    Filed: February 1, 2007
    Publication date: August 23, 2007
    Inventors: Lieu-Kim Dang, Roman Steffen, Mustafa Kucuk, Christian Haefele
  • Patent number: 7136233
    Abstract: A device (1) for generating and projecting light marks (MP, ML) in which projection optics (P) have a cylindrical lens (Z). The cylindrical lens (Z) can be irradiated by a light beam bundle (L2) such that a central beam bundle (L2Z) radiates completely through a cylinder portion area (A) and at least one marginal beam bundle (L2R) travels directly past the edge of the outer surface of the cylinder portion area (ZA). A light mark (ML) in the shape of a line is projected by the central beam bundle (L2Z), while a light mark (MP) in the shape of a point is projected through the marginal beam bundle (L2R).
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: November 14, 2006
    Assignee: Hilti Aktiengesellschaft
    Inventor: Lieu-Kim Dang
  • Publication number: 20050068626
    Abstract: An optical beam splitter (1) for a light beam (2) that is parallel along a beam axis (A) has a transparent central area (3) and a plurality of reflecting reflector surfaces (4a, 4b) that are respectively inclined by a reflector angle (?) relative to the beam axis (A) for generating each a discrete spot beam (5a, 5b), with the central area (3) being convexly curved in the manner of a prism at least in part and/or has beam-expanding diffractive optics (19).
    Type: Application
    Filed: September 7, 2004
    Publication date: March 31, 2005
    Inventors: Lieu-Kim Dang, Reinhard Waibel
  • Publication number: 20040207848
    Abstract: A device (1) for generating and projecting light marks (MP, ML) in which projection optics (P) have a cylindrical lens (Z). The cylindrical lens (Z) can be irradiated by a light beam bundle (L2) such that a central beam bundle (L2Z) radiates completely through a cylinder portion area (A) and at least one marginal beam bundle (L2R) travels directly past the edge of the outer surface of the cylinder portion area (ZA). A light mark (ML) in the shape of a line is projected by the central beam bundle (L2Z), while a light mark (MP) in the shape of a point is projected through the marginal beam bundle (L2R).
    Type: Application
    Filed: April 12, 2004
    Publication date: October 21, 2004
    Inventor: Lieu-Kim Dang