Patents by Inventor Matthias Kramer

Matthias Kramer 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).

  • Publication number: 20080191895
    Abstract: The invention is directed to a light microscope with a display which is suitable for use particularly in lecture rooms or dissection rooms. By an integrated, large display of the viewing conditions, e.g., lamp voltage, selected objective, etc., that can be viewed from a distance, the actual state of the adjusted conditions can be determined from any position within a classroom or laboratory room.
    Type: Application
    Filed: June 1, 2006
    Publication date: August 14, 2008
    Inventors: Ralph Aschenbach, Thomas Bocher, Matthias Kramer
  • Patent number: 7293885
    Abstract: The invention is directed to a microscope in which laser light is used to irradiate a sample to be examined and which is outfitted with a protective device for preventing eye damage due to laser light. It is the object of the invention to provide a protective device for microscopes of the type described above which ensures protection against eye damage and visibility of the sample. According to the invention, the protective device has at least one area which is not transparent to harmful radiation components, but which is transparent to harmless, visible radiation components, so that an observer can see the sample through this area without risk of eye damage.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: November 13, 2007
    Assignee: Carl Zeiss MicroImaging GmbH
    Inventors: Matthias Kramer, Bruene Venus
  • Publication number: 20060252912
    Abstract: Process for preparing polyoxymethylene homo- and copolymers and apparatus suitable for this purpose An apparatus is described for preparing polyoxymethylene homo- and copolymers. This has the following elements: A) reactor (1) encompassing a polymerization zone (2) and a deactivation zone (3) directly downstream thereof for polymerizing and deactivating polyoxymethylene homo- and copolymers in a homogeneous phase in a manner known per se, B) depressurizing assembly (4), which, if appropriate, has a metering apparatus (5) for additives for the polymer, C) pelletizer (6), D) extraction apparatus (7), and E) if appropriate, a drying apparatus (8). Use of the apparatus and of the polymerization process carried out therein can achieve particularly low residual monomer contents in a simple manner which saves energy.
    Type: Application
    Filed: April 17, 2006
    Publication date: November 9, 2006
    Applicant: TICONA GmbH
    Inventors: Michael Hoffmockel, Matthias Kramer, Karl-Friedrich Muck, Horst Roschert
  • Patent number: 7075963
    Abstract: A line-narrowing module for a laser includes a prism beam expander and a grating preferably attached to a heat sink. A pressure-controlled enclosure filled with an inert gas seals the grating and/or other elements of the line-narrowing module. The pressure in the enclosure is adjusted for tuning the wavelength. Preferably, the pressure is controlled by controlling the flow of an inert gas through the enclosure. A pump may be used, or an overpressure flow may be used. Alternatively, a prism of the beam expander or an etalon may be rotatable for tuning the wavelength.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: July 11, 2006
    Assignee: Lambda Physik AG
    Inventors: Dirk Basting, Wolfgang Zschocke, Thomas Schröeder, Juergen Kleinschmidt, Matthias Kramer, Uwe Stamm
  • Publication number: 20060109459
    Abstract: The invention is directed to a microscope in which laser light is used to irradiate a sample to be examined and which is outfitted with a protective device for preventing eye damage due to laser light. It is the object of the invention to provide a protective device for microscopes of the type described above which ensures protection against eye damage and visibility of the sample. According to the invention, the protective device has at least one area which is not transparent to harmful radiation components, but which is transparent to harmless, visible radiation components, so that an observer can see the sample through this area without risk of eye damage.
    Type: Application
    Filed: October 19, 2005
    Publication date: May 25, 2006
    Inventors: Matthias Kramer, Bruene Venus
  • Patent number: 6760358
    Abstract: An apparatus for adjusting an orientation of an optical component mounted within a laser resonator with suppressed hysteresis includes an electromechanical device, a drive element, and a mechano-optical device coupled to the mounted optical component. The drive element is configured to contact and apply a force to the mechano-optical device in such a way as to adjust the orientation of the mechano-optical device, and thereby that of the optical component, to a known orientation within the laser resonator. The optical component is mounted such that stresses applied by the mount to the optical component are homogeneous and substantially thermally-independent.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: July 6, 2004
    Assignee: Lambda Physik AG
    Inventors: Kay Zimmermann, Konstantin Aab, Matthias Kramer, Marcus Serwazi
  • Patent number: 6735225
    Abstract: A wavelength chirp compensation method for an excimer or molecular fluorine laser system operating in burst mode, includes pre-programming into a computer of the laser system resonator tuning optic adjustments for making the adjustments during pauses between bursts to compensate wavelength chirp at beginnings of succeeding bursts.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: May 11, 2004
    Assignee: Lambda Physik AG
    Inventors: Hans-Stephan Albrecht, Matthias Kramer, Marcus Serwazi, Thomas Schroeder, Stefan Niedermeier
  • Patent number: 6700916
    Abstract: An E-Diagnostic system for monitoring a state of an excimer laser or molecular fluorine laser system includes a processing device and an interface. The processing device runs a program for outputting parameter requests to the laser system, receiving parameter values from the laser system in response to the parameter requests, and storing the parameter values such that a record of the state of the excimer or molecular fluorine laser system is kept. The interface signal-couples the processing device with the laser system permitting the outputting of the parameter requests and the receiving of the parameter values between the processing device and the laser system.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: March 2, 2004
    Assignee: Lambda Physik AG
    Inventors: Matthias Kramer, Günter Nowinski, Juergen Kleinschmidt, Marcus Serwazi
  • Patent number: 6616764
    Abstract: A method for cleaning an interior of a coating booth is proposed in which blast air is used as at least one of the means for cleaning. For primary cleaning of the coating booth, blast air and corresponding suction operations are used, whereby blowing and suction can be carried out simultaneously, cyclically or sequentially. The invention also relates to a coating booth. The floor and/or the ceiling of the coating booth are formed by a separate floor part and/or a ceiling part which are movable relative to the peripheral wall. The floor part and/or the ceiling part include a cleaning device which can optionally be integrated with the respective floor part and/or ceiling part. The floor part and/or the ceiling part hence operate as a cleaning device for the coating booth. The cleaning device can be displaced in the interior space of the coating booth in a longitudinal direction.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: September 9, 2003
    Assignee: Nordson Corporation
    Inventors: Erich Krämer, Matthias Krämer
  • Patent number: 6602424
    Abstract: To increase the safety of an extracorporeal blood treatment machine which has control of the ultrafiltration rate as a function of the blood volume of the patient, the ultrafiltration rate UFR(t) during the treatment is monitored in a safety device. The safety device has a computer unit for determining an upper limit for the ultrafiltration rate UFRlim from the predetermined total ultrafiltrate volume UFVtot and the predetermined treatment time UFT. The safety device also has a monitoring unit with which the ultrafiltration rate is limited to the upper limit determined by the computer unit so that any risk to the patient is prevented even in the case of faulty blood volume control.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: August 5, 2003
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Matthias Krämer, Carsten Müller, Christian Johner
  • Patent number: 6597462
    Abstract: A first method for determining the relative wavelength shift of a laser beam away from a known reference line, such as an absorption line of a gas in an opto-galvanic cell or a reference line of reference laser uses a monitor etalon. The FSR of the etalon used to calculate the wavelength shift is determined based on a calculated gap spacing between the etalon plates, or etalon constant. The gap spacing is determined based on a fit to measured values of wavelength deviations of the FSR as a function of the relative wavelength shift. The FSR used to calculate the wavelength shift is also based on the wavelength shift itself. A second method for measuring the absolute bandwidth and spectral purity of a tunable laser beam uses an opto-galvanic or absorption cell. The laser beam is directed to interact with a gas in the cell that undergoes an optical transition within the spectral tuning range of the laser.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: July 22, 2003
    Assignee: Lambda Physik AG
    Inventors: Matthias Kramer, Marcus Serwazi
  • Patent number: 6563853
    Abstract: An excimer or molecular fluorine laser system includes a discharge chamber containing a gas mixture, multiple electrodes connected to a power supply circuit for energizing the gas mixture, a resonator for generating a laser beam, a processor, and means for monitoring an amplified spontaneous emission (ASE) signal of the laser, such as preferably an ASE detector. The processor receives a signal from the preferred ASE detector indicative of the ASE signal of the laser. Based on the signal from the ASE detector, the processor determines whether to initiate a responsive action for adjusting a parameter of the laser system.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: May 13, 2003
    Assignee: Lambda Physik AG
    Inventors: Peter Heist, Matthias Kramer, Juergen Kleinschmidt, Sergei Govorkov, Marcus Serwazi, Thomas Jünemann
  • Patent number: 6542761
    Abstract: A device for measuring parameters of medical fluids having a measurement chamber through which the fluid to be measured passes. The chamber is sealed on one side by a flexible membrane, and it also has a measurement plate that has a peripheral seal on its outer edge and is in contact with the flexible membrane. At least one sensor for measuring a parameter of the medical fluid is mounted on the measurement plate, and the measurement plate has a continuous inlet leading to the flexible membrane so that a vacuum can be established between the measurement plate and the flexible membrane.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: April 1, 2003
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Paul Jahn, Franz Wilhelm Koerdt, Matthias Krämer, Klaus Metzner, Harald Peter, Walter Pieper, Bernd Steinbach
  • Patent number: 6542243
    Abstract: A technique for testing the quality of optical components of a line-narrowing module is performed on-line. As the wavelength tends to drift from a desired value when the optical components of the line-narrowing module are heated due to absorption, one or more optical components is adjusted such as by rotation to tune the wavelength back to the desired wavelength using a feedback loop. The amount of adjustment of these optical components is monitored for indirectly measuring, and thereby testing, the absorption or quality of the optical components.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: April 1, 2003
    Assignee: Lambda Physik AG
    Inventor: Matthias Kramer
  • Publication number: 20030016708
    Abstract: A wavelength chirp compensation method for an excimer or molecular fluorine laser system operating in burst mode, includes pre-programming into a computer of the laser system resonator tuning optic adjustments for making the adjustments during pauses between bursts to compensate wavelength chirp at beginnings of succeeding bursts.
    Type: Application
    Filed: June 6, 2002
    Publication date: January 23, 2003
    Inventors: Hans-Stephan Albrecht, Matthias Kramer, Marcus Serwazi, Thomas Schroeder, Stefan Niedermeier
  • Patent number: 6476987
    Abstract: A line narrowing unit for use within an excimer or molecular fluorine laser resonator includes a dispersive prism having antireflection coatings on entrance and exit surfaces. Entrance and exit angles and an apex angle are increased to enhance the dispersive power of the prism, while the antireflective coatings limit reflective losses. Preferably, a laser beam makes a non-symmetric pass through said prism. The apex angle is preferably greater than 65°, or even 75°, and the angle of incidence and the exit angle of the beam are each preferably greater than 65°. A beam expanding prism configured for enhanced beam expansion has an apex angle between within a range of 37.5° and 42.5°, and a beam incidence angle at the entrance surface of more than 65°, and an antireflection coating on preferably both the entrance and exit surfaces.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: November 5, 2002
    Assignee: Lambda Physik AG
    Inventors: Juergen Kleinschmidt, Peter Heist, Matthias Kramer
  • Publication number: 20020050245
    Abstract: A method for cleaning an interior of a coating booth is proposed in which blast air is used as at least one of the means for cleaning. For primary cleaning of the coating booth, blast air and corresponding suction operations are used, whereby blowing and suction can be carried out simultaneously, cyclically or sequentially. The invention also relates to a coating booth. The floor and/or the ceiling of the coating booth are formed by a separate floor part and/or a ceiling part which are movable relative to the peripheral wall. The floor part and/or the ceiling part include a cleaning device which can optionally be integrated with the respective floor part and/or ceiling part. The floor part and/or the ceiling part hence operate as a cleaning device for the coating booth. The cleaning device can be displaced in the interior space of the coating booth in a longitudinal direction.
    Type: Application
    Filed: October 30, 2001
    Publication date: May 2, 2002
    Inventors: Erich Kramer, Matthias Kramer
  • Publication number: 20020031157
    Abstract: An excimer or molecular fluorine laser system includes a discharge chamber containing a gas mixture, multiple electrodes connected to a power supply circuit for energizing the gas mixture, a resonator for generating a laser beam, a processor, and means for monitoring an amplified spontaneous emission (ASE) signal of the laser, such as preferably an ASE detector. The processor receives a signal from the preferred ASE detector indicative of the ASE signal of the laser. Based on the signal from the ASE detector, the processor determines whether to initiate a responsive action for adjusting a parameter of the laser system.
    Type: Application
    Filed: April 24, 2001
    Publication date: March 14, 2002
    Applicant: Lambda Physik AG
    Inventors: Peter Heist, Matthias Kramer, Juergen Kleinschmidt, Sergei Govorkov, Marcus Serwazi, Thomas Junemann
  • Publication number: 20020012374
    Abstract: A line-narrowing module for a laser includes a prism beam expander and a grating preferably attached to a heat sink. A pressure-controlled enclosure filled with an inert gas seals the grating and/or other elements of the line-narrowing module. The pressure in the enclosure is adjusted for tuning the wavelength. Preferably, the pressure is controlled by controlling the flow of an inert gas through the enclosure. A pump may be used, or an overpressure flow may be used. Alternatively, a prism of the beam expander or an etalon may be rotatable for tuning the wavelength.
    Type: Application
    Filed: January 25, 2001
    Publication date: January 31, 2002
    Inventors: Dirk Basting, Wolfgang Zchocke, Thomas Schroeder, Juergen Kleinschmidt, Matthias Kramer, Uwe Stamm
  • Publication number: 20020005955
    Abstract: A first method for determining the relative wavelength shift of a laser beam away from a known reference line, such as an absorption line of a gas in an opto-galvanic cell or a reference line of reference laser uses a monitor etalon. The FSR of the etalon used to calculate the wavelength shift is determined based on a calculated gap spacing between the etalon plates, or etalon constant. The gap spacing is determined based on a fit to measured values of wavelength deviations of the FSR as a function of the relative wavelength shift. The FSR used to calculate the wavelength shift is also based on the wavelength shift itself. A second method for measuring the absolute bandwidth and spectral purity of a tunable laser beam uses an opto-galvanic or absorption cell. The laser beam is directed to interact with a gas in the cell that undergoes an optical transition within the spectral tuning range of the laser.
    Type: Application
    Filed: February 22, 2001
    Publication date: January 17, 2002
    Inventors: Matthias Kramer, Marcus Serwazi