Patents by Inventor Wolfgang Wieser
Wolfgang Wieser 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).
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Patent number: 9784559Abstract: A swept source OCT system and related method are disclosed. The system comprises a control device for operating a tunable light source in response to an electronic sweep control signal such that the tunable light source carries out wave length sweeps with a repetition rate fsweep, which depends on the frequency of the sweep control signal. The system further comprises a detection device for the time-resolved detection of an interference signal from a sample beam and a reference beam with the help of a detection cycle signal. The sweep control signal and the detection cycle signal are phase-locked, or means for creating a signal or signal sequence are provided, said signal or signal sequence being characterising for the frequency relationship and/or the relative phase position of the sweep control signal and detection cycle signal.Type: GrantFiled: March 21, 2013Date of Patent: October 10, 2017Assignee: Ludwig-Maximilians-Universität MünchenInventors: Robert Alexander Huber, Thomas Klein, Wolfgang Wieser
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Patent number: 9709380Abstract: At least one embodiment of the method is designed to create a two-dimensional image of a three-dimensional sample.Type: GrantFiled: March 21, 2013Date of Patent: July 18, 2017Assignee: Ludwig-Maximilians-Universität MünchenInventors: Robert Alexander Huber, Thomas Klein, Wolfgang Wieser
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Patent number: 9638638Abstract: Disclosed herein is a system (10) for measuring light induced transmission or reflection changes, in particular due to stimulated Raman emission. The system comprises a first light source (12) for generating a first light signal having a first wavelength, a second light source (14) for generating a second light signal having a second wavelength, an optical assembly (16) for superposing said first and second light signals at a sample location (18), and a detection means (24) for detecting a transmitted or reflected light signal, in particular a stimulated Raman signal caused by a Raman-active medium when located at said sample location. Here in at least one of the first and second light sources (12, 14) is one or both of actively controllable to emit a time controlled light pattern or operated substantially in CW mode and provided with an extra cavity modulation means (64) for generating a time controlled light pattern.Type: GrantFiled: May 9, 2014Date of Patent: May 2, 2017Assignee: Ludwig-Maximilians-Universität MünchenInventors: Robert Alexander Huber, Thomas Klein, Wolfgang Wieser, Sebastian Karpf, Matthias Eibl
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Publication number: 20160091429Abstract: Disclosed herein is a system (10) for measuring light induced transmission or reflection changes, in particular due to stimulated Raman emission. The system comprises a first light source (12) for generating a first light signal having a first wavelength, a second light source (14) for generating a second light signal having a second wavelength, an optical assembly (16) for superposing said first and second light signals at a sample location (18), and a detection means (24) for detecting a transmitted or reflected light signal, in particular a stimulated Raman signal caused by a Raman-active medium when located at said sample location. Here in at least one of the first and second light sources (12, 14) is one or both of actively controllable to emit a time controlled light pattern or operated substantially in CW mode and provided with an extra cavity modulation means (64) for generating a time controlled light pattern.Type: ApplicationFiled: May 9, 2014Publication date: March 31, 2016Inventors: Robert Alexander Huber, Thomas Klein, Wolfgang Wieser, Sebastian Karpf, Matthias Eibl
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Patent number: 9246312Abstract: A Fabry-Pérot tuneable filter device is described with reflecting elements separated by an optical path length to form an optical resonator cavity. A first actuator means is directly or indirectly coupled with a first reflecting element. And the first actuator means is configured to modulate the optical path length between first and second reflecting elements by a modulation amplitude to thereby sweep the optical resonator cavity through a band of optical resonance frequencies with a sweep frequency of 70 kHz or more. And the mechanical coupling between selected elements of the arrangement is sufficiently low such that when operated at the sweep frequency, the selected elements act as a system of coupled oscillating elements. In addition or alternatively, the first actuator means is directly or indirectly coupled with the first reflecting element so as to substantially drive the first reflecting element only.Type: GrantFiled: September 4, 2014Date of Patent: January 26, 2016Assignee: Ludwig-Maximilians-Universität MünchenInventors: Robert Huber, Wolfgang Wieser, Thomas Klein, Christoph Eigenwillig, Benjamin Biedermann, Dieter Muellner, Michael Eder
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Publication number: 20150109621Abstract: A swept source OCT system and related method are disclosed. The system comprises a control device for operating a tunable light source in response to an electronic sweep control signal such that the tunable light source carries out wave length sweeps with a repetition rate fsweep, which depends on the frequency of the sweep control signal. The system further comprises a detection device for the time-resolved detection of an interference signal from a sample beam and a reference beam with the help of a detection cycle signal. The sweep control signal and the detection cycle signal are phase-locked, or means for creating a signal or signal sequence are provided, said signal or signal sequence being characterising for the frequency relationship and/or the relative phase position of the sweep control signal and detection cycle signal.Type: ApplicationFiled: March 21, 2013Publication date: April 23, 2015Inventors: Robert Alexander Huber, Thomas Klein, Wolfgang Wieser
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Publication number: 20150055136Abstract: At least one embodiment of the method is designed to create a two-dimensional image of a three-dimensional sample.Type: ApplicationFiled: March 21, 2013Publication date: February 26, 2015Applicant: Ludwig Maximilians Universitat MunchenInventors: Robert Alexander Huber, Thomas Klein, Wolfgang Wieser
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Patent number: 8934507Abstract: In at least one embodiment, a wavelength-tunable light source includes at least one fiber-based partial section and at least one delay section. For a wavelength ? of at least one portion of a radiation emitted by the light source as a function of time t, the relationship ?(t)=?(t??) holds true. In this case, ? is a specific period of time. Furthermore, the delay section includes one or more oligomode fibers.Type: GrantFiled: September 16, 2010Date of Patent: January 13, 2015Assignee: Ludwig-Maximilians-Universitaet MuenchenInventors: Robert Alexander Huber, Wolfgang Wieser, Thomas Klein
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Publication number: 20140369374Abstract: A Fabry-Pérot tuneable filter device is described with reflecting elements separated by an optical path length to form an optical resonator cavity. A first actuator means is directly or indirectly coupled with a first reflecting element. And the first actuator means is configured to modulate the optical path length between first and second reflecting elements by a modulation amplitude to thereby sweep the optical resonator cavity through a band of optical resonance frequencies with a sweep frequency of 70 kHz or more. And the mechanical coupling between selected elements of the arrangement is sufficiently low such that when operated at the sweep frequency, the selected elements act as a system of coupled oscillating elements. In addition or alternatively, the first actuator means is directly or indirectly coupled with the first reflecting element so as to substantially drive the first reflecting element only.Type: ApplicationFiled: September 4, 2014Publication date: December 18, 2014Inventors: Robert Huber, Wolfgang Wieser, Thomas Klein, Christoph Eigenwillig, Benjamin Biedermann, Dieter Muellner, Michael Eder
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Patent number: 8855149Abstract: A Fabry-Pérot tunable filter device is described with reflecting elements separated by an optical path length to form an optical resonator cavity. A first actuator means is directly or indirectly coupled with a first reflecting element. And the first actuator means is configured to modulate the optical path length between first and second reflecting elements by a modulation amplitude to thereby sweep the optical resonator cavity through a band of optical resonance frequencies with a sweep frequency of 70 kHz or more. And the mechanical coupling between selected elements of the arrangement is sufficiently low such that when operated at the sweep frequency, the selected elements act as a system of coupled oscillating elements. In addition or alternatively, the first actuator means is directly or indirectly coupled with the first reflecting element so as to substantially drive the first reflecting element only.Type: GrantFiled: August 13, 2012Date of Patent: October 7, 2014Assignee: Ludwig-Maximilians-Universität MünchenInventors: Robert Huber, Wolfgang Wieser, Thomas Klein, Christoph Eigenwillig, Benjamin Biedermann, Dieter Muellner, Michael Eder
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Publication number: 20130070794Abstract: A Fabry-Pérot tuneable filter device is described with reflecting elements separated by an optical path length to form an optical resonator cavity. A first actuator means is directly or indirectly coupled with a first reflecting element. And the first actuator means is configured to modulate the optical path length between first and second reflecting elements by a modulation amplitude to thereby sweep the optical resonator cavity through a band of optical resonance frequencies with a sweep frequency of 70 kHz or more. And the mechanical coupling between selected elements of the arrangement is sufficiently low such that when operated at the sweep frequency, the selected elements act as a system of coupled oscillating elements. In addition or alternatively, the first actuator means is directly or indirectly coupled with the first reflecting element so as to substantially drive the first reflecting element only.Type: ApplicationFiled: August 13, 2012Publication date: March 21, 2013Applicant: Ludwig-Maximilians-Universität MünchenInventors: Robert Huber, Wolfgang Wieser, Thomas Klein, Christoph Eigenwillig, Benjamin Biedermann, Dieter Muellner, Michael Eder
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Publication number: 20120230354Abstract: In at least one embodiment, a wavelength-tunable light source includes at least one fiber-based partial section and at least one delay section. For a wavelength ? of at least one portion of a radiation emitted by the light source as a function of time t, the relationship ?(t)=?(t??) holds true. In this case, ? is a specific period of time. Furthermore, the delay section includes one or more oligomode fibers.Type: ApplicationFiled: September 16, 2010Publication date: September 13, 2012Applicant: LUDWIG-MAXIMILIANS-UNIVERSITAET MUENCHENInventors: Robert Alexander Huber, Wolfgang Wieser, Thomas Klein
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Publication number: 20100032256Abstract: The invention relates to a vibration damper (10), in particular for attachment to a motor vehicle seat, with a carrier element (12), a vibration mass (14) and a spring arrangement (20), wherein the carrier element (12) and the vibration mass (14) are coupled to one another via the spring arrangement (20). In this vibration damper it is envisaged that the spring arrangement comprises an elastic connection element (20), which joins the carrier element (12) and the vibration mass (14) to one another and is arranged in the region of the centre of gravity (S) of the vibration mass (14).Type: ApplicationFiled: May 11, 2006Publication date: February 11, 2010Applicant: SGF Suddeutsche Gelenkscheibenfabrik & Co. KGInventors: Wolfgang Wieser, Franz Kobus
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Publication number: 20080211151Abstract: The invention relates to a vibration damper (10), in particular for attachment to a motor vehicle seat, with a carrier frame (12), a vibration mass (26) and a spring arrangement (18, 20), wherein the carrier frame (12) and the vibration mass (26) are coupled to one another via the spring arrangement (18, 20). In this vibration damper (10) it is envisaged that the spring arrangement (18, 20) comprises at least one elastic connection element (18, 20), which is formed integrally on the carrier arm (12) and on the vibration mass (26).Type: ApplicationFiled: March 15, 2006Publication date: September 4, 2008Inventors: Wolfgang Wieser, Wolfgang Orthofer, Franz Kobus