Patents by Inventor Heinrich Grüger
Heinrich Grüger 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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Publication number: 20090262346Abstract: An optical apparatus includes a first substrate including an optical functional element, and a second substrate including a movable micromechanical functional element, the first substrate and the second substrate being connected in a stacked manner, so that a light path exists which is convoluted between the first substrate and the second substrate, the movable micromechanical functional element and the optical functional element being arranged in the light path. In addition, a method of producing an optical apparatus includes producing a first substrate including an optical functional element, and producing a second substrate including a movable micromechanical functional element, as well as connecting the first and second substrates, so that a light path exists which is convoluted between the first and second substrates, the movable micromechanical functional element and the optical functional element being arranged in the light path.Type: ApplicationFiled: April 17, 2009Publication date: October 22, 2009Applicant: Franuhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Thomas Egloff, Jens Knobbe, Heinrich Grueger
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Patent number: 7465051Abstract: An apparatus for generating an image comprises a projection means, which is designed to generate an image on a projection area, a detection means, which is designed to generate a detection means signal in dependence on a position or change of position of the projection means, and a control means, which is designed to control the image generated by the projection means based on the detection means signal. A method for generating an image comprises detecting a position or change of position of a projection means via a detection means, generating a detection means signal by the detection means in dependence on the position or change of position and controlling the image generated by the projection means on a projection area based on the detection means signal.Type: GrantFiled: October 4, 2005Date of Patent: December 16, 2008Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Heinrich Grueger
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Patent number: 7355200Abstract: An ion-sensitive field effect transistor has a gate consisting of metal silicate. The gate of metal silicate provides high resistance to aggressive measured substances and further has a high long-term stability. The gate of the ion-sensitive field effect transistor may include a single layer gate, wherein the gate is arranged directly on the channel region.Type: GrantFiled: May 10, 2005Date of Patent: April 8, 2008Assignee: Fraunhofer-Gasellschaft zur Forderung der angewandten Forschung e.V.Inventors: Eberhard Kurth, Christian Kunath, Heinrich Grüger
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Publication number: 20070252990Abstract: An apparatus for the detection of spectral information along a geometrical line with a dispersive element, which is suspended from an axis of rotation, for the spectral dispersion of electromagnetic radiation from a range on the geometrical line into spectral constituents, a line detector for the detection of the spectral constituents of the radiation emanating from the range on the geometrical line and a dispersive-element deflector, the deflector being designed to deflect the dispersive element on the axis of rotation, so that depending on an angle of deflection a radiation from another range of the geometrical line is incident on the line detector.Type: ApplicationFiled: April 25, 2007Publication date: November 1, 2007Inventor: Heinrich Grueger
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Publication number: 20060091293Abstract: An opto-electronic device includes a substrate, a light sensor and a light-emitting diode having a light-emitting layer of an organic material, wherein the light sensor and the light-emitting diode are monolithically integrated with the substrate.Type: ApplicationFiled: November 18, 2005Publication date: May 4, 2006Inventors: Heinrich Grueger, Torsten Schneider, Joerg Amelung, Bodo Sauer
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Patent number: 7034936Abstract: The present invention is based on the knowledge that the advantages of a moveable dispersive element with regard to the simple detector element and the adjustability of the measurement range and the resolution can also be used in a miniaturization of a spectrometer, when the dispersive element is operated generally in resonance instead by a quasi-static drive. A proposed spectrometer comprises a vibratably suspended dispersive element for spectrally decomposing a light beam, whose spectral distribution is to be determined, into spectral components, a means for putting the vibratably suspended dispersive element into a vibration with a frequency, which is in such a ratio to the natural frequency of the vibratably suspended dispersive element that a resonance amplification of the voltage of the dispersive element occurs, and a detector for detecting a spectral component of the light beam.Type: GrantFiled: August 11, 2004Date of Patent: April 25, 2006Assignee: Fraunhofer Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Harald Schenk, Heinrich Grueger
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Publication number: 20060082736Abstract: An apparatus for generating an image comprises a projection means, which is designed to generate an image on a projection area, a detection means, which is designed to generate a detection means signal in dependence on a position or change of position of the projection means, and a control means, which is designed to control the image generated by the projection means based on the detection means signal. A method for generating an image comprises detecting a position or change of position of a projection means via a detection means, generating a detection means signal by the detection means in dependence on the position or change of position and controlling the image generated by the projection means on a projection area based on the detection means signal.Type: ApplicationFiled: October 4, 2005Publication date: April 20, 2006Inventor: Heinrich Grueger
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Patent number: 7027152Abstract: A spectrometer is described which comprises a dispersive element for spectrally decomposing a light beam, whose spectral distribution is to be determined, into spectral components, as well as a suspension for supporting the dispersive element and for biasing the same into a resting position with a biasing force, when the dispersive element is in a deflected position. A control means controls a holding means to vary the deflected position, so that different spectral components become detectable for a detector of the spectrometer having a first and a second detector element. A combining means combines shots made by the detector at different positions of the dispersive element.Type: GrantFiled: August 13, 2004Date of Patent: April 11, 2006Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Harald Schenk, Heinrich Grueger
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Publication number: 20050057750Abstract: The present invention is based on the knowledge that the advantages of a moveable dispersive element with regard to the simple detector element and the adjustability of the measurement range and the resolution can also be used in a miniaturization of a spectrometer, when the dispersive element is operated generally in resonance instead by a quasistatic drive. A proposed spectrometer comprises a vibratably suspended dispersive element for spectrally decomposing a light beam, whose spectral distribution is to be determined, into spectral components, a means for putting the vibratably suspended dispersive element into a vibration with a frequency, which is in such a ratio to the natural frequency of the vibratably suspended dispersive element that a resonance amplification of the voltage of the dispersive element occurs, and a detector for detecting a spectral component of the light beam.Type: ApplicationFiled: August 11, 2004Publication date: March 17, 2005Inventors: Harald Schenk, Heinrich Grueger
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Publication number: 20050057751Abstract: The invention is based on the knowledge that the quasi-static deflection of a dispersive element can also be obtained in a miniaturization, in that a higher degree of insusceptibility against vibration and shock can be obtained when a suspension is used for the dispersive element, which biases the same into a resting position, as well as for the deflection a means for holding the dispersive element in a deflected position, such that an equilibrium of powers is established between the holding force and the biasing force. In that way, after shock and vibration, the dispersive element always returns to the position defined by the holding force. Therefore, an inventive spectrometer comprises a dispersive element for spectrally decomposing a light beam, whose spectral distribution is to be determined, into spectral components, as well as a suspension for supporting the dispersive element and for biasing the same into a resting position with a biasing force, when the dispersive element is in a deflected position.Type: ApplicationFiled: August 13, 2004Publication date: March 17, 2005Inventors: Harald Schenk, Heinrich Grueger
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Publication number: 20050012115Abstract: The invention relates to an ion-sensitive field effect transistor, comprising a gate (36) consisting of carbon nitride. The carbon nitride gate (36) is highly resistant to aggressive substances to be measured and also exhibits good adhesive properties. In addition, the ion-sensitive field effect transistor has high long-term stability and negligible drift. Said ion-sensitive field effect transistor can be produced in a method that uses CMOS-compatible planar technology.Type: ApplicationFiled: August 11, 2004Publication date: January 20, 2005Inventors: Heinrich Grueger, Christian Kunath
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Patent number: 6781368Abstract: An apparatus for detecting a rotation angle of a rotation around an axis of rotation includes a transducer magnet for generating a magnetic field as well as a plurality of magnetic-field-sensitive sensor elements for detecting the magnetic field. The magnet and the plurality of magnetic-field-sensitive sensor elements are arranged such that, during a rotation around the axis of rotation, the plurality of magnetic-field-sensitive sensor elements circles relative to the transducer magnet around the same. By the plurality of magnetic-field-sensitive sensor elements, a scale is defined, with the transducer magnet being arranged such that the generated magnetic-field comprises a characteristic on a locus on the scale, and the locus on the scale being dependent on a partial area of a full rotation in an unique manner from the rotation angle. The transducer magnet is magnetized inclined to the axis of rotation.Type: GrantFiled: February 11, 2004Date of Patent: August 24, 2004Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Heinrich Grueger, Ralf Gottfried-Gottfried
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Publication number: 20040130316Abstract: An inventive apparatus for detecting a rotation angle of a rotation around an axis of rotation (30) includes a transducer magnet (20) for generating a magnetic field as well as a plurality of magnetic-field-sensitive sensor elements (60) for detecting the magnetic field. The magnet (20) and the plurality of magnetic-field-sensitive sensor elements (60) are arranged such that, during a rotation around the axis of rotation, the plurality of magnetic-field-sensitive sensor elements circles relative to the transducer magnet (20) around the same. By the plurality of magnetic-field-sensitive sensor elements (60), a scale is defined, with the transducer magnet (20) being arranged such that the generated magnetic-field comprises a characteristic on a locus on the scale, and the locus on the scale being dependent on a partial area of a full rotation in an unique manner from the rotation angle.Type: ApplicationFiled: February 11, 2004Publication date: July 8, 2004Inventors: Heinrich Grueger, Ralf Gottried-Gottfried