Patents by Inventor Uwe Mohrholz

Uwe Mohrholz 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: 8967806
    Abstract: A fundus camera for the recording of high-resolution color images of the fundus of non-dark-adapted eyes, and without the use of a mydriatic. The fundus camera has a strip-shaped pupil division, and includes a coherent or incoherent illumination source with illumination optics, a deflection mirror and an ophthalmoscope lens for illuminating the eye, detection optics and a detector for detecting the light reflected by the eye, and a control and evaluation unit. The deflection mirror has a strip shape, and the spatially resolving detector can be activated and read out in sectors. The control and evaluation unit connects the data read out in sectors in the form of a bright image from the detector and produce a resulting fundus image. The fundus camera records images of the fundus when the eyes are not dark-adapted for this purpose and no mydriatic has been used.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: March 3, 2015
    Assignee: Carl Zeiss Meditec AG
    Inventors: Daniel Bublitz, Lothar Müller, Uwe Mohrholz, Thomas Mohr, Frank Teige
  • Patent number: 8542273
    Abstract: An ophthalmic device and an arrangement for generating images with expanded dynamic range and a corresponding method for generating images with expanded dynamic range have at least one beamsplitter, in particular with an asymmetric splitting ratio, and at least two image sensors, wherein the image sensors are reflected into a common imaging beam path by the at least one beamsplitter.
    Type: Grant
    Filed: September 20, 2008
    Date of Patent: September 24, 2013
    Assignee: Carl Zeiss Meditec AG
    Inventors: Uwe Mohrholz, Frank Teige, Detlef Biernat
  • Publication number: 20130222763
    Abstract: A fundus camera for the recording of high-resolution colour images of the fundus of non-dark-adapted eyes, and without the use of a mydriatic. The fundus camera has a strip-shaped pupil division, and includes a coherent or incoherent illumination source with illumination optics, a deflection mirror and an ophthalmoscope lens for illuminating the eye, detection optics and a detector for detecting the light reflected by the eye, and a control and evaluation unit. The deflection mirror has a strip shape, and the spatially resolving detector can be activated and read out in sectors. The control and evaluation unit connects the data read out in sectors in the form of a bright image from the detector and produce a resulting fundus image. The fundus camera records images of the fundus when the eyes are not dark-adapted for this purpose and no mydriatic has been used.
    Type: Application
    Filed: November 4, 2011
    Publication date: August 29, 2013
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Daniel Bublitz, Lothar Müller, Uwe Mohrholz, Thomas Mohr, Frank Teige
  • Patent number: 8289382
    Abstract: The present invention makes it possible to make high-quality recordings of the anterior and/or posterior segments of the eye as an individual image or also as a sequence of images without increasing the radiation load on the eye to be examined. In the method according to the invention, at least one pre-flash is used in order to determine an optimal exposure time for the main flash based on the recording of the pre-flash which is reflected by the object to be recorded. Both the pre-flash and the main flash are controllable and the recordings of the pre-flash and main flash are recorded with the same sensor of the electronic camera and are evaluated electronically by a control unit, and the recording of the main flash and, as the case may be, of the pre-flash is analyzed and/or corrected and displayed to the user.
    Type: Grant
    Filed: November 24, 2007
    Date of Patent: October 16, 2012
    Assignee: Carl Zeiss Meditec AG
    Inventors: Daniel Bublitz, Thomas Mohr, Uwe Mohrholz, Michael Trost, Martin Wiechmann, Manfred Dick
  • Patent number: 7871164
    Abstract: A homogeneously illuminating ophthalmic instrument includes an illumination device having a source of illumination, a homogenizing unit and a projection device, at least one organic or inorganic source of radiation with spectrally selective emission being used as a source of illumination. The illumination generated in this way enables correspondingly adapted visual and/or digital observation, recording or display of the examined regions of the eye by a visualizing unit.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: January 18, 2011
    Assignee: Carl Zeiss Meditec AG
    Inventors: Egon Luther, Ingo Koschmieder, Manfred Dick, Joachim Winter, Uwe Mohrholz, Thomas Mohr, Daniel Bublitz, Enrico Geissler
  • Publication number: 20100201799
    Abstract: An ophthalmic device and an arrangement for generating images with expanded dynamic range and a corresponding method for generating images with expanded dynamic range have at least one beamsplitter, in particular with an asymmetric splitting ratio, and at least two image sensors, wherein the image sensors are reflected into a common imaging beam path by the at least one beamsplitter.
    Type: Application
    Filed: September 20, 2008
    Publication date: August 12, 2010
    Inventors: Uwe Mohrholz, Frank Teige, Detlef Biernat
  • Publication number: 20100060728
    Abstract: The present invention makes it possible to make high-quality recordings of the anterior and/or posterior segments of the eye as an individual image or also as a sequence of images without increasing the radiation load on the eye to be examined. In the method according to the invention, at least one pre-flash is used in order to determine an optimal exposure time for the main flash based on the recording of the pre-flash which is reflected by the object to be recorded. Both the pre-flash and the main flash are controllable and the recordings of the pre-flash and main flash are recorded with the same sensor of the electronic camera and are evaluated electronically by a control unit, and the recording of the main flash and, as the case may be, of the pre-flash is analyzed and/or corrected and displayed to the user.
    Type: Application
    Filed: November 24, 2007
    Publication date: March 11, 2010
    Inventors: Daniel Bublitz, Thomas Mohr, Uwe Mohrholz, Michael Trost, Martin Wiechmann, Manfred Dick
  • Publication number: 20090257024
    Abstract: A homogeneously illuminating ophthalmic instrument includes an illumination device having a source of illumination, a homogenizing unit and a projection device, at least one organic or inorganic source of radiation with spectrally selective emission being used as a source of illumination. The illumination generated in this way enables correspondingly adapted visual and/or digital observation, recording or display of the examined regions of the eye by a visualizing unit.
    Type: Application
    Filed: February 22, 2007
    Publication date: October 15, 2009
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Egon Luther, Ingo Koschmieder, Manfred Dick, Joachim Winter, Uwe Mohrholz, Thomas Mohr, Daniel Bublitz, Enrico Geissler
  • Publication number: 20070030448
    Abstract: The present invention is directed to an optical device for the observation and documentation of the ocular fundus and is preferably provided for fundus cameras. In order to generate a uniform illumination of the fundus by transillumination of the sclera in the illumination unit, according to the invention, for fundus cameras and/or ophthalmoscopes, the light emitted by the illumination source is coupled into individual light-conducting fibers or bundles of light-conducting fibers which extend into the area of the front lens of the fundus camera and ophthalmoscope and whose fiber ends are formed in such a way that the exiting light is projected on and transilluminates the sclera. The discomfort caused to the patient by pupil-dilating means is avoided as are the risks associated with the placement of contact lenses.
    Type: Application
    Filed: October 16, 2004
    Publication date: February 8, 2007
    Inventors: Detlef Biernat, Uwe Mohrholz, Frank Teige