Patents by Inventor Thomas Riederer

Thomas Riederer 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: 11571272
    Abstract: A stereoscopic camera with fluorescence visualization is disclosed. An example stereoscopic camera includes a visible light source, a near-infrared light source, and a near-ultraviolet light source. The stereoscopic camera also includes a light filter assembly having left and right filter magazines positioned respectively along left and right optical paths and configured to selectively enable certain wavelengths of light to pass through. Each of the left and right filter magazines includes an infrared cut filter, a near-ultraviolent cut filter, and a near-infrared bandpass filter. A controller of the camera is configured to provide for a visible light mode, an indocyanine green (“ICG”) fluorescence mode, and a 5-aminolevulinic acid (“ALA”) fluorescence mode by synchronizing the activation of the light sources with the selection of the filters. A processor of the camera combines image data from the different modes to enable fluorescence emission light to be superimposed on visible light stereoscopic images.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: February 7, 2023
    Assignee: Alcon, Inc.
    Inventors: Ashok Burton Tripathi, Maximiliano Ramirez Luna, George Polchin, Thomas Riederer, Alan Fridman
  • Publication number: 20220008158
    Abstract: A stereoscopic camera with fluorescence visualization is disclosed. An example stereoscopic camera includes a visible light source, a near-infrared light source, and a near-ultraviolet light source. The stereoscopic camera also includes a light filter assembly having left and right filter magazines positioned respectively along left and right optical paths and configured to selectively enable certain wavelengths of light to pass through. Each of the left and right filter magazines includes an infrared cut filter, a near-ultraviolent cut filter, and a near-infrared bandpass filter. A controller of the camera is configured to provide for a visible light mode, an indocyanine green (“ICG”) fluorescence mode, and a 5-aminolevulinic acid (“ALA”) fluorescence mode by synchronizing the activation of the light sources with the selection of the filters. A processor of the camera combines image data from the different modes to enable fluorescence emission light to be superimposed on visible light stereoscopic images.
    Type: Application
    Filed: July 7, 2021
    Publication date: January 13, 2022
    Applicant: Alcon, Inc.
    Inventors: Ashok Burton Tripathi, Maximiliano Ramirez Luna, George Polchin, Thomas Riederer, Alan Fridman
  • Patent number: 11083537
    Abstract: A stereoscopic camera with fluorescence visualization is disclosed. An example stereoscopic camera includes a visible light source, a near-ultraviolet light source, and a near-ultraviolet light source. The stereoscopic camera also includes a light filter assembly having left and right filter magazines positioned respectively along left and right optical paths and configured to selectively enable certain wavelengths of light to pass through. Each of the left and right filter magazines includes an infrared cut filter, a near-ultraviolent cut filter, and a near-infrared bandpass filter. A controller of the camera is configured to provide for a visible light mode, an indocyanine green (“ICG”) fluorescence mode, and a 5-aminolevulinic acid (“ALA”) fluorescence mode by synchronizing the activation of the light sources with the selection of the filters. A processor of the camera combines image data from the different modes to enable fluorescence emission light to be superimposed on visible light stereoscopic images.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: August 10, 2021
    Assignee: Alcon Inc.
    Inventors: Ashok Burton Tripathi, Maximiliano Ramirez Luna, George Polchin, Thomas Riederer, Alan Fridman
  • Publication number: 20200008899
    Abstract: A stereoscopic camera with fluorescence visualization is disclosed. An example stereoscopic camera includes a visible light source, a near-ultraviolet light source, and a near-ultraviolet light source. The stereoscopic camera also includes a light filter assembly having left and right filter magazines positioned respectively along left and right optical paths and configured to selectively enable certain wavelengths of light to pass through. Each of the left and right filter magazines includes an infrared cut filter, a near-ultraviolent cut filter, and a near-infrared bandpass filter. A controller of the camera is configured to provide for a visible light mode, an indocyanine green (“ICG”) fluorescence mode, and a 5-aminolevulinic acid (“ALA”) fluorescence mode by synchronizing the activation of the light sources with the selection of the filters. A processor of the camera combines image data from the different modes to enable fluorescence emission light to be superimposed on visible light stereoscopic images.
    Type: Application
    Filed: August 27, 2019
    Publication date: January 9, 2020
    Inventors: Ashok Burton Tripathi, Maximiliano Ramirez, George Polchin, Thomas Riederer, Alan Fridman
  • Publication number: 20070188603
    Abstract: A stereoscopic display cart and system providing a means of presenting stereoscopic images. Various embodiments are disclosed including an LCD and other monitor-based display means, as well as projector-based display means. A means of providing stereoscopic images can be a stereoscopic microscope or any other means providing stereoscopic images. Embodiments having folding components for compact transport and storage are disclosed, including embodiments having registration of position and orientation such that re-alignment is not required upon teardown, transport and re-deployment.
    Type: Application
    Filed: April 23, 2007
    Publication date: August 16, 2007
    Inventors: Thomas Riederer, Jan Vanderford, Michael Weissman
  • Publication number: 20070121202
    Abstract: A stereoscopic microscope workstation providing high-resolution, real-time data to a display means. Various embodiments are disclosed including desktop and free-standing workstations. An image processing unit can be implemented, providing for natural orientation of the magnified image of the viewed object, also allowing rotation, cropping, filtering and other image manipulation features. Methods of performing a procedure utilizing the stereoscopic microscope workstation are disclosed, including a method of manipulating an object while viewing the object in a high-resolution real-time magnified image.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Applicant: TRUEVISION SYSTEMS, INC.
    Inventor: Thomas Riederer
  • Publication number: 20070121203
    Abstract: A stereoscopic microscope workstation providing high-resolution, real-time video signals to a display means. A stereoscopic microscope workstation providing high-resolution, real-time data to a display means. Various embodiments are disclosed including desktop and free-standing workstations. An image processing unit can be implemented, providing for natural orientation of the magnified image of the viewed object, also allowing rotation, cropping, filtering and other image manipulation features. Methods of performing a procedure utilizing the stereoscopic microscope workstation are disclosed, including a method of performing a procedure of simultaneously utilizing both foveal vision and peripheral vision.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Applicant: TRUEVISION SYSTEMS, INC.
    Inventor: Thomas Riederer
  • Patent number: 5428833
    Abstract: In an arrangement for suppressing spurious signals occurring in a reception signal in a receiver of a high-frequency message transmission system, these spurious signals resulting from at least one neighboring channel that neighbors the useful signal channel, the reception signal is distributed onto at least two branches. One of the branches has a summing element as well as a circuit for generating a signal with a frequency, phase and amplitude corresponding to the useful signal. The other branch also has a summing element as well as a circuit for generating a signal having a frequency, phase and amplitude corresponding to the spurious signal. The signals of these branches are respectively supplied anti-phase to the summing element of the respective other branch.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: June 27, 1995
    Assignee: Rohde & Schwartz GmbH & Co., KG
    Inventors: Peter Reitberger, Thomas Rieder