Patents by Inventor Odd Lovhaugen
Odd Lovhaugen 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: 10670622Abstract: The present invention relates to a displacement sensor device and the system including the device, wherein the device comprises a first at least partially transparent plane surface with a first diffraction pattern and a second plane surface comprising a second reflecting diffraction pattern. The diffractive patterns being adapted to diffract light within a chosen range of wavelengths, the second surface being positioned below and parallel to the first surface constituting a pair wherein said first and second diffractive patterns being essentially equal, the device also comprising displacement means for allowing a movement in a direction parallel to said surfaces, the device thus providing a movement sensitive diffraction pattern.Type: GrantFiled: January 18, 2019Date of Patent: June 2, 2020Assignee: PGS Geophysical ASInventors: Ib-Rune Johansen, Matthieu Lacolle, Thor Bakke, Andreas Vogl, Dag Thorstein Wang, Sverre Knudsen, Odd Løvhaugen, Hallvard Angelskår, Zeljko Skokic
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Publication number: 20190154726Abstract: The present invention relates to a displacement sensor device and the system including the device, wherein the device comprises a first at least partially transparent plane surface with a first diffraction pattern and a second plane surface comprising a second reflecting diffraction pattern. The diffractive patterns being adapted to diffract light within a chosen range of wavelengths, the second surface being positioned below and parallel to the first surface constituting a pair wherein said first and second diffractive patterns being essentially equal, the device also comprising displacement means for allowing a movement in a direction parallel to said surfaces, the device thus providing a movement sensitive diffraction pattern.Type: ApplicationFiled: January 18, 2019Publication date: May 23, 2019Applicant: PGS Geophysical ASInventors: Ib-Rune Johansen, Matthieu Lacolle, Thor Bakke, Andreas Vogl, Dag Thorstein Wang, Sverre Knudsen, Odd Løvhaugen, Hallvard Angelskår, Zeljko Skokic
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Patent number: 10197589Abstract: The present invention relates to a displacement sensor device and the system including the device, wherein the device comprises a first at least partially transparent plane surface with a first diffraction pattern and a second plane surface comprising a second reflecting diffraction pattern. The diffractive patterns being adapted to diffract light within a chosen range of wavelengths, the second surface being positioned below and parallel to the first surface constituting a pair wherein said first and second diffractive patterns being essentially equal, the device also comprising displacement means for allowing a movement in a direction parallel to said surfaces, the device thus providing a movement sensitive diffraction pattern.Type: GrantFiled: February 26, 2015Date of Patent: February 5, 2019Assignee: PGS Geophysical ASInventors: Ib-Rune Johansen, Matthieu Lacolle, Thor Bakke, Andreas Vogl, Dag Thorstein Wang, Sverre Knudsen, Odd Løvhaugen, Hallvard Angelskår, Zeljko Skokic
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Publication number: 20170016931Abstract: The present invention relates to a displacement sensor device and the system including the device, wherein the device comprises a first at least partially transparent plane surface with a first diffraction pattern and a second plane surface comprising a second reflecting diffraction pattern. The diffractive patterns being adapted to diffract light within a chosen range of wavelengths, the second surface being positioned below and parallel to the first surface constituting a pair wherein said first and second diffractive patterns being essentially equal, the device also comprising displacement means for allowing u movement in a direction parallel to said surfaces, the device thus providing a movement sensitive diffraction pattern.Type: ApplicationFiled: February 26, 2015Publication date: January 19, 2017Applicant: PGS Geophysical ASInventors: Ib-Rune Johansen, Matthieu Lacolle, Thor Bakke, Andreas Vogl, Dag Thorstein Wang, Sverre Knudsen, Odd Løvhaugen, Hallvard Angelskår, Zeljko Skokic
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Patent number: 7957004Abstract: This invention relates to an interference filter, especially for use in gas detection with infrared light within a chosen range, comprising at least two essentially parallel and partially reflective surfaces with a chosen distance between them thus defining a cavity delimited by the reflecting surfaces between which the light may oscillate, and wherein at least one of said surfaces is partially transparent for transmission of light to or from said cavity. The filter comprises a first transparent material having a high refractive index, e.g. silicon, positioned in at least a part of said cavity, and at least one of said reflective surfaces being divided into a three dimensional pattern with varying shift relative to its plane, thus to provide a position dependent resonance condition between them for separation of different wavelengths in the light.Type: GrantFiled: April 3, 2006Date of Patent: June 7, 2011Assignee: Sinvent ASInventors: Ib-Rune Johansen, Alain Ferber, Odd Løvhaugen, Håkon Sagberg
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Patent number: 7701574Abstract: A diffractive optical element device for use in spectroscopy, where broadband light is emitted from a light source towards the optical element and from there is transmitted to at least one detector. The optical element has a plurality of diffractive dispersively focusing patterns, preferably partly integrated into each other, whose respective centers are two-dimensionally offset relative to each other in order to produce a plurality of spectra, where at least two are separate, but offset relative to each other and/or partly overlapping. In an alternative embodiment, the optical element consists of either one diffractive optical element that is related to a wavelength and produces a spectrum, or at least two diffractive optical elements which are related to respective wavelengths and which produce at least two mutually partly overlapping spectra to give a composite spectrum. The optical element is capable of producing at least one indication of upper and/or lower wavelength value in the spectrum.Type: GrantFiled: January 17, 2007Date of Patent: April 20, 2010Assignee: Tomra Systems ASAInventors: Ib-Rune Johansen, Odd Løvhaugen
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Publication number: 20100079755Abstract: A diffractive optical element device for use in spectroscopy, where broadband light is emitted from a light source towards the optical element and from there is transmitted to at least one detector. The optical element has a plurality of diffractive dispersively focusing patterns, preferably partly integrated into each other, whose respective centers are two-dimensionally offset relative to each other in order to produce a plurality of spectra, where at least two are separate, but offset relative to each other and/or partly overlapping. In an alternative embodiment, the optical element consists of either one diffractive optical element that is related to a wavelength and produces a spectrum, or at least two diffractive optical elements which are related to respective wavelengths and which produce at least two mutually partly overlapping spectra to give a composite spectrum. The optical element is capable of producing at least one indication of upper and/or lower wavelength value in the spectrum.Type: ApplicationFiled: January 17, 2007Publication date: April 1, 2010Applicant: TOMRA SYSTEMS ASAInventors: Ib-Rune JOHANSEN, Odd LOVHAUGEN
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Patent number: 7463420Abstract: This invention relates to a configurable diffractive optical element comprising an array of diffractive sub-elements having a reflective surface, wherein each sub-element has a controllable position with a chosen range, and in which a number of sub-elements are provided with a reflective grating with a number of chosen spectral characteristics.Type: GrantFiled: September 19, 2007Date of Patent: December 9, 2008Assignees: Sinvent AS, The Board of Trustees of the Leland Stanford Junior UniversityInventors: Hakon Sagberg, Ib-Rune Johansen, Odd Lovhaugen, Olav Solgaard, Matthieu Lacolle
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Publication number: 20080273208Abstract: This invention relates to an interference filter, especially for use in gas detection with infrared light within a chosen range, comprising at least two essentially parallel and partially reflective surfaces with a chosen distance between them thus defining a cavity delimited by the reflecting surfaces between which the light may oscillate, and wherein at least one of said surfaces is partially transparent for transmission of light to or from said cavity. The filter comprises a first transparent material having a high refractive index, e.g. silicon, positioned in at least a part of said cavity, and at least one of said reflective surfaces being divided into a three dimensional pattern with varying shift relative to its plane, thus to provide a position dependent resonance condition between them for separation of different wavelengths in the light.Type: ApplicationFiled: April 3, 2006Publication date: November 6, 2008Applicant: SINVENT ASInventors: Ib-Rune Johansen, Alain Ferber, Odd Lovhaugen, Hakon Sagberg
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Publication number: 20080007833Abstract: This invention relates to a configurable diffractive optical element comprising an array of diffractive sub-elements having a reflective surface, wherein each sub-element has a controllable position with a chosen range, and in which a number of sub-elements are provided with a reflective grating with a number of chosen spectral characteristics.Type: ApplicationFiled: September 19, 2007Publication date: January 10, 2008Applicants: SINVENT AS, The Board of Trustees of the Leland Stanford Junior UniversityInventors: Hakon SAGBERG, Ib-Rune JOHANSEN, Odd LOVHAUGEN, Olav SOLGAARD, Matthieu LACOLLE
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Patent number: 7286292Abstract: This invention relates to a configurable diffractive optical element comprising an array of diffractive sub-elements having a reflective surface, wherein each sub-element has a controllable position with a chosen range, and in which a number of sub-elements are provided with a reflective grating with a number of predetermined spectral characteristics.Type: GrantFiled: December 22, 2003Date of Patent: October 23, 2007Assignees: Sinvent AS, The Board of Trustees of the Leland Stanford Junior UniversityInventors: H{dot over (a)}kon Sagberg, Ib-Rune Johansen, Odd Løvhaugen, Olav Solgaard, Matthieu Lacolle
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Publication number: 20070171416Abstract: A diffractive optical element device for use in spectroscopy, where broadband light is emitted from a light source towards the optical element and from there is transmitted to at least one detector. The optical element has a plurality of diffractive dispersively focusing patterns, preferably partly integrated into each other, whose respective centers are two-dimensionally offset relative to each other in order to produce a plurality of spectra, where at least two are separate, but offset relative to each other and/or partly overlapping. In an alternative embodiment, the optical element consists of either one diffractive optical element that is related to a wavelength and produces a spectrum, or at least two diffractive optical elements which are related to respective wavelengths and which produce at least two mutually partly overlapping spectra to give a composite spectrum. The optical element is capable of producing at least one indication of upper and/or lower wavelength value in the spectrum.Type: ApplicationFiled: January 17, 2007Publication date: July 26, 2007Applicant: TOMRA SYSTEMS ASAInventors: Ib-Rune JOHANSEN, Odd LOVHAUGEN
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Patent number: 7196791Abstract: A diffractive optical element device for use in spectroscopy, where broadband light is emitted from a light source (31) towards the optical element (24) and from there is transmitted to at least one detector (29; 29?). The optical element has a plurality of diffractive dispersively focusing patterns, preferably partly integrated into each other, whose respective centers are two-dimensionally offset relative to each other in order to produce a plurality of spectra (25–28), where at least two are separate, but offset relative to each other and/or partly overlapping. In an alternative embodiment, the optical element consists of either one diffractive optical element (60) that is related to a wavelength and produces a spectrum, or at least two diffractive optical elements (60, 61) which are related to respective wavelengths and which produce at least two mutually partly overlapping spectra to give a composite spectrum.Type: GrantFiled: November 30, 2001Date of Patent: March 27, 2007Assignee: Tomra Systems ASAInventors: Ib-Rune Johansen, Odd Løvhaugen
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Patent number: 7184368Abstract: The invention relates an optical displacement sensor element comprising two essentially flat surfaces (1,2) being separated by a cavity defined by a spacer (5) and the surfaces (1,2), the distance between the surfaces being variable, wherein a first of said surfaces (1) is positioned on an at least partially transparent carrier (3) and being provided with a reflective pattern, the pattern constituting a pattern being shaped as a diffractive lens, and said second surface (2) being a reflective surface.Type: GrantFiled: November 13, 2002Date of Patent: February 27, 2007Assignee: Sinvent ASInventors: Ib-Rune Johansen, Olav Solgaard, Odd Løvhaugen, Håkon Sagberg, Henrik Rogne, Dag Wang
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Publication number: 20060103936Abstract: This invention relates to a configurable diffractive optical element comprising an array of diffractive sub-elements having a reflective surface, wherein each sub-element has a controllable position with a chosen range, and in which a number of sub-elements are provided with a reflective grating with a number of chosen spectral characteristics.Type: ApplicationFiled: December 22, 2003Publication date: May 18, 2006Applicant: Sinvent A SInventors: Hakon Sagberg, Ib-Rune Johansen, Odd Lovhaugen, Olav Solggaard, Matthieu Lacolle
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Publication number: 20060070928Abstract: A system of identifying and/or sorting of matter including an advancing device (101) for advancing the matter, a radiation emitting device (107) serving to emit radiation which is varied by the advancing matter, a detecting arrangement (103) serving to detect the varied radiation, and an analysing arrangement (106) serving to analyse the varied radiation. A spectral analyser (104) serves to detect the varied radiation in a plurality of narrow wavelength bands in the visible spectrum in order to determine the colour and/or composition of the matter. The system may also include another spectral analyser (105) operable in the invisible wavelength spectrum to analyse radiation which has been varied by the matter and is in the invisible wavelength spectrum. The system may further include a colour camera (102) and an arrangement which applies camera image interpretation to radiation which has been varied by the matter.Type: ApplicationFiled: January 15, 2003Publication date: April 6, 2006Inventors: Odd Lovhaugen, Kari Bakke, Volker Rehrmann
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Publication number: 20050018541Abstract: The invention relates an optical displacement sensor element comprising two essentially flat surfaces (1,2) being separated by a cavity defined by a spacer (5) and the surfaces (1,2), the distance between the surfaces being variable, wherein a first of said surfaces (1) is positioned on an at least partially transparent carrier (3) and being provided with a reflective pattern, the pattern constituting a pattern being shaped as a diffractive lens, and said second surface (2) being a reflective surface.Type: ApplicationFiled: November 13, 2002Publication date: January 27, 2005Inventors: Ib-Rune Johansen, Olav Solgaard, Odd Lovhaugen, Hakon Sagberg, Henrik Rogne, Dag Wang
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Publication number: 20050007305Abstract: This invention relates to a colour separator and the use of this in a projector, especially for video projectors, comprising a surface adapted to be moved through a light beam to be separated, the surface comprising a diffractive/holographic (DOE) optical element capable of directing different wavelengths comprised in the light beam toward different parts of a predetermined area.Type: ApplicationFiled: August 25, 2003Publication date: January 13, 2005Inventors: Ib-Rune Johansen, Odd Lovhaugen, Erik Wold
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Publication number: 20040032585Abstract: A diffractive optical element device for use in spectroscopy, where broadband light is emitted from a light source (31) towards the optical element (24) and form there is transmitted to at least one detector (29; 29′). The optical element has a plurality of diffractive dispersively focusing patterns, preferably partly integrated into each other, whose respective centres are two-dimensionally offset relative to each other in order to produce a plurality of spectra (25-28), where at least two are separate, but offset relative to each other and/or partly overlapping. In an alternative embodiment, the optical element consists of either one diffractive optical element (60) that is related to a wavelength and produces a spectrum, or at least two diffractive optical elements (60, 61) which are related to respective wavelengths and which produce at least two mutually partly overlapping spectra to give a composite spectrum.Type: ApplicationFiled: May 20, 2003Publication date: February 19, 2004Inventors: Ib-Rune Johansen, Odd Lovhaugen
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Patent number: 4314739Abstract: A new halographic method for converting one wave into another wave by means of a hologram is disclosed. This method comprises mixing an object wave with a reference wave whose wave front in the hologram plane is different from that of the actual reconstruction wave in the same plane. The phases and possibly also the amplitudes of these two wave fronts are combined in such a way that compensation is obtained for imaging errors caused by mutual inconsistencies between the wavelength ratio, the hologram scaling and the object scaling, and a displacement of the reconstructed object relative to the hologram. The reference wave and the reconstruction wave are chosen so that the converted object wave field becomes "as equal as possible" to a wave field coming from another but geometrically similar object at a different wavelength. In an example concerning seismic holography a formular for choosing a proper synthetic reference wave is given.Type: GrantFiled: May 25, 1979Date of Patent: February 9, 1982Assignee: Sentralinstitutt for industriell forskningInventors: Even Mehlum, Odd Lovhaugen