Patents by Inventor Lothar Knuenz

Lothar Knuenz 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: 11419695
    Abstract: A device (2) for an ophthalmological illumination system (1) comprising a light instrument (3) for illuminating the intraocular space of a human or animal eye (33) comprises a housing (4) having a proximal housing end (5), a distal housing end (6), and an opening (7) in the proximal housing end (5). The housing (4) delimits a receptacle space (8), which extends in a manner proceeding from the opening (7) in the proximal housing end (5) along a longitudinal direction (L) in the direction of the distal housing end (6). The receptacle space (8) is configured for receiving the light instrument (3) through the opening (7) in the proximal housing end (5). The housing (4) comprises at least one translucent material at least in the region (10) of the distal housing end (6).
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: August 23, 2022
    Assignee: OERTLI-INSTRUMENTE AG
    Inventors: Lisa Kehren-Quitsdorf, Lothar Knünz, Michael Zürcher
  • Publication number: 20200360104
    Abstract: A device (2) for an ophthalmological illumination system (1) comprising a light instrument (3) for illuminating the intraocular space of a human or animal eye (33) comprises a housing (4) having a proximal housing end (5), a distal housing end (6), and an opening (7) in the proximal housing end (5). The housing (4) delimits a receptacle space (8), which extends in a manner proceeding from the opening (7) in the proximal housing end (5) along a longitudinal direction (L) in the direction of the distal housing end (6). The receptacle space (8) is configured for receiving the light instrument (3) through the opening (7) in the proximal housing end (5). The housing (4) comprises at least one translucent material at least in the region (10) of the distal housing end (6).
    Type: Application
    Filed: May 15, 2020
    Publication date: November 19, 2020
    Applicant: OERTLI-INSTRUMENTE AG
    Inventors: Lisa KEHREN-QUITSDORF, Lothar KNÜNZ, Michael ZÜRCHER
  • Patent number: 8529064
    Abstract: Attachment module for a microscope, having an ophthalmoscopic lens (142; 242; 342) and an inverting device (140; 240; 340) for inverting an image of an object (143; 243; 343) that is to be observed generated by means of the ophthalmoscopic lens, wherein the inverter device comprises at least four deflection surfaces (146a, 146b, 146c; 246a, 246b, 246c; 346a, 346b, 346c, 346d) by means of which observation beam paths (102) which emanate from the object to be observed can be introduced into a main objective (110) of the microscope, at least two deflection surfaces being planar and at least two further deflection surfaces being non-planar, particularly spherical or in the shape of free-form surfaces.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: September 10, 2013
    Assignee: Leica Microsystems (Schweiz) AG
    Inventors: Ulrich Sander, Lothar Knuenz
  • Publication number: 20110194073
    Abstract: Attachment module for a microscope, having an ophthalmoscopic lens (142; 242; 342) and an inverting device (140; 240; 340) for inverting an image of an object (143; 243; 343) that is to be observed generated by means of the ophthalmoscopic lens, wherein the inverter device comprises at least four deflection surfaces (146a, 146b, 146c; 246a, 246b, 246c; 346a, 346b, 346c, 346d) by means of which observation beam paths (102) which emanate from the object to be observed can be introduced into a main objective (110) of the microscope, at least two deflection surfaces being planar and at least two further deflection surfaces being non-planar, particularly spherical or in the shape of free-form surfaces.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 11, 2011
    Applicant: LEICA MICROSYSTEMS (SCHWEIZ) AG
    Inventors: Ulrich Sander, Lothar Knuenz
  • Patent number: 7894130
    Abstract: A stereomicroscope (20) has first and second main beam paths (21, 22) whose spacing defines a stereo base (23), a microscope axis (24) proceeding through the center of the stereo base (23) parallel to the main beam paths; and an optical beam splitter device (30) for generating an assistant's beam path (31) and a documentation beam path (32), the assistant's beam path being outcoupled from the first main beam path in a first position of the beam splitter device, and from the second main beam path in a second position, and the documentation beam path being outcoupled from the other main beam path; and the direction of the assistant's beam path in the first position being rotated 180° relative to the assistant's beam path in the second position; and the outcoupled documentation beam path extending, in both positions of the beam splitter device, perpendicular to the outcoupled assistant's beam path.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: February 22, 2011
    Assignee: Leica Instruments (Singapore) Pte. Ltd.
    Inventors: Lothar Knuenz, Heinz Suhner
  • Patent number: 7379239
    Abstract: A zero-degree assistant's device for a microscope has a tube carrier (2) for the principal observer's tube, an interface (5) for the microscope body, an assistant's module (6), pivotable about an axis (4), having an interface (7) for an assistant's tube, and having a retaining device (8, 12) for releasing and immobilizing the assistant's module (6), the tube carrier (2) for the principal observer's tube being mounted tiltably about a rotation axis (10) in such a way that tilting of the tube carrier (2) for the principal observer's tube into a tilted position makes possible unrestricted pivoting of the assistant's module (6).
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: May 27, 2008
    Assignee: Leica Microsystems (Schweiz) AG
    Inventors: Peter Strobel, Heinz Suhner, Lothar Knuenz
  • Publication number: 20080100893
    Abstract: A stereomicroscope (20) has first and second main beam paths (21, 22) whose spacing defines a stereo base (23), a microscope axis (24) proceeding through the center of the stereo base (23) parallel to the main beam paths; and an optical beam splitter device (30) for generating an assistant's beam path (31) and a documentation beam path (32), the assistant's beam path being outcoupled from the first main beam path in a first position of the beam splitter device, and from the second main beam path in a second position, and the documentation beam path being outcoupled from the other main beam path; and the direction of the assistant's beam path in the first position being rotated 180° relative to the assistant's beam path in the second position; and the outcoupled documentation beam path extending, in both positions of the beam splitter device, perpendicular to the outcoupled assistant's beam path.
    Type: Application
    Filed: October 24, 2007
    Publication date: May 1, 2008
    Applicant: LEICA MICROSYSTEMS (SCHWEIZ) AG
    Inventors: Lothar Knuenz, Heinz Suhner
  • Publication number: 20060215258
    Abstract: A zero-degree assistant's device for a microscope has a tube carrier (2) for the principal observer's tube, an interface (5) for the microscope body, an assistant's module (6), pivotable about an axis (4), having an interface (7) for an assistant's tube, and having a retaining device (8, 12) for releasing and immobilizing the assistant's module (6), the tube carrier (2) for the principal observer's tube being mounted tiltably about a rotation axis (10) in such a way that tilting of the tube carrier (2) for the principal observer's tube into a tilted position makes possible unrestricted pivoting of the assistant's module (6).
    Type: Application
    Filed: March 17, 2006
    Publication date: September 28, 2006
    Inventors: Peter Strobel, Heinz Suhner, Lothar Knuenz
  • Patent number: D920519
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 25, 2021
    Assignee: OERTLI-INSTRUMENTE AG
    Inventors: Sandro Schultz, Lothar Knünz, Bettina Schuler
  • Patent number: D934425
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: October 26, 2021
    Assignee: OERTLI-INSTRUMENTE AG
    Inventors: Lisa Kehren-Quitsdorf, Michael Zürcher, Lothar Knünz
  • Patent number: D980983
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: March 14, 2023
    Assignee: OERTLI-INSTRUMENTE AG
    Inventors: Bettina Schuler, Lothar Knünz, Sandro Schultz