Patents by Inventor Yves SALVADÉ
Yves SALVADÉ 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: 11720065Abstract: A device for measuring a horological component comprising a measurement cell, at least two optical systems and a driver unit. The measurement cell comprises a measurement channel filled with a liquid and flat and parallel faces. Each optical system comprises a light emitter suitable for emitting a light in a predefined wavelength so as to illuminate a horological component that is present and being displaced in the measurement channel in the measurement zone and an optical sensor associated with said light emitter to receive at least a part of the light emitted by said light emitter. The optical systems operate in different respective wavelengths. The driver unit drives the optical systems and processes the digital data obtained from the optical systems. It is configured to implement calculations of at least one measurement of a horological component.Type: GrantFiled: June 9, 2021Date of Patent: August 8, 2023Assignee: ROLEX SAInventors: Mathieu Amstutz, Rowan Luthi, Christian Mougin, Olivier Perrinjaquet, Yves Salvadé
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Publication number: 20230125524Abstract: An image based opto-electronic encoder for a joint, the encoder having a reading head for the first part of the joint and an optical system, comprising a ball lens for the second part of the joint. The ball lens has a front surface transparent for measuring light and an at least partially reflective, structured back surface. The ball lens has -with respect to the measuring light- a refractive index of at least approximately two or an equal radially varying refractive index, such that a bundle of measuring light rays reflected inside the ball lens from a point of the back surface of the ball lens forms at least approximately a parallel bundle after getting refracted at the front surface of the ball lens. The reading head and the ball lens are rotatable relative to each other in at least two degrees of freedom.Type: ApplicationFiled: October 26, 2022Publication date: April 27, 2023Applicant: HEXAGON TECHNOLOGY CENTER GMBHInventors: Yves SALVADÉ, Markus SPRECHER, Peter KIPFER, Marcel ROHNER, Tim MAYER, Beat AEBISCHER
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Publication number: 20220305590Abstract: Machining device comprising an optical trepanation head (1), comprising an opto-mechanical system having a head body (21) provided with a rotating device (22), a picosecond or femtosecond pulsed laser source (3), and at least one optical fiber (4) wherein the rotation device (22) of the opto-mechanical system (2) comprises a rotative diffraction grating (R1). Machining process by means of optical trepanation using such a device.Type: ApplicationFiled: August 26, 2020Publication date: September 29, 2022Inventors: Yves SALVADÉ, Philippe GRIZE, Alain SCHORDERET
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Publication number: 20210397136Abstract: A device for measuring a horological component comprising a measurement cell, at least two optical systems and a driver unit. The measurement cell comprises a measurement channel filled with a liquid and flat and parallel faces. Each optical system comprises a light emitter suitable for emitting a light in a predefined wavelength so as to illuminate a horological component that is present and being displaced in the measurement channel in the measurement zone and an optical sensor associated with said light emitter to receive at least a part of the light emitted by said light emitter. The optical systems operate in different respective wavelengths. The driver unit drives the optical systems and processes the digital data obtained from the optical systems. It is configured to implement calculations of at least one measurement of a horological component.Type: ApplicationFiled: June 9, 2021Publication date: December 23, 2021Applicant: ROLEX SAInventors: Mathieu Amstutz, Rowan Luthi, Christian Mougin, Olivier Perrinjaquet, Yves Salvadé
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Patent number: 11162773Abstract: A distance measuring method and device, wherein a first and a second laser radiation are generated so that the first laser radiation has a first frequency modulation and the second laser radiation has a second frequency modulation, wherein at least in sections a time derivative of the first frequency modulation is different from a time derivative of the second frequency modulation. In accordance with the invention the first and the second laser radiation are generated by modulating a base radiation by means of an electro-optical modulator, so that an output radiation comprising a carrier component and a plurality of sideband components is produced, wherein a first sideband component provides the first laser radiation and a second sideband component provides the second laser radiation.Type: GrantFiled: August 22, 2019Date of Patent: November 2, 2021Assignee: HEXAGON TECHNOLOGY CENTER GMBHInventors: Yves Salvadé, Sébastien Le Floch, Marcel Rohner
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Patent number: 11067690Abstract: A measuring apparatus comprising a tunable laser diode for generating a mono mode measurement radiation, said laser diode being designed as a laser beam source in such a way that an emission wavelength of the measurement radiation is variable within a wavelength range by means of the variation of a tuning parameter, comprising an absorption medium defining absorption lines within the wavelength range, comprising a memory having a line atlas for the absorption medium, comprising a detector for determining an absorptivity and comprising a control and evaluation unit for regulating the emission wavelength by means of the at least one tuning parameter in a manner dependent on the absorptivity determined in such a way that the emission wavelength remains stable.Type: GrantFiled: May 9, 2019Date of Patent: July 20, 2021Assignee: LEICA GEOSYSTEMS AGInventors: Thomas Lüthi, Burkhard Böckem, Yves Salvadé
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Publication number: 20200064116Abstract: A distance measuring method and device, wherein a first and a second laser radiation are generated so that the first laser radiation has a first frequency modulation and the second laser radiation has a second frequency modulation, wherein at least in sections a time derivative of the first frequency modulation is different from a time derivative of the second frequency modulation. In accordance with the invention the first and the second laser radiation are generated by modulating a base radiation by means of an electro-optical modulator, so that an output radiation comprising a carrier component and a plurality of sideband components is produced, wherein a first sideband component provides the first laser radiation and a second sideband component provides the second laser radiation.Type: ApplicationFiled: August 22, 2019Publication date: February 27, 2020Applicant: HEXAGON TECHNOLOGY CENTER GMBHInventors: Yves SALVADÉ, Sébastien LE FLOCH, Marcel ROHNER
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Publication number: 20190265355Abstract: A measuring apparatus comprising a tunable laser diode for generating a mono mode measurement radiation, said laser diode being designed as a laser beam source in such a way that an emission wavelength of the measurement radiation is variable within a wavelength range by means of the variation of a tuning parameter, comprising an absorption medium defining absorption lines within the wavelength range, comprising a memory having a line atlas for the absorption medium, comprising a detector for determining an absorptivity and comprising a control and evaluation unit for regulating the emission wavelength by means of the at least one tuning parameter in a manner dependent on the absorptivity determined in such a way that the emission wavelength remains stable.Type: ApplicationFiled: May 9, 2019Publication date: August 29, 2019Applicant: LEICA GEOSYSTEMS AGInventors: Thomas LÜTHI, Burkhard BÖCKEM, Yves SALVADÉ
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Patent number: 10338219Abstract: A measuring apparatus comprising a tunable laser diode for generating a mono mode measurement radiation, said laser diode being designed as a laser beam source in such a way that an emission wavelength of the measurement radiation is variable within a wavelength range by means of the variation of a tuning parameter, comprising an absorption medium defining absorption lines within the wavelength range, comprising a memory having a line atlas for the absorption medium, comprising a detector for determining an absorptivity and comprising a control and evaluation unit for regulating the emission wavelength by means of the at least one tuning parameter in a manner dependent on the absorptivity determined in such a way that the emission wavelength remains stable.Type: GrantFiled: May 6, 2013Date of Patent: July 2, 2019Assignee: LEICA GEOSYSTEMS AGInventors: Thomas Lüthi, Burkhard Böckem, Yves Salvadé
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Patent number: 9310178Abstract: Method and systems for determining a change of distance to an object by interferometry with emitting measurement laser light from a laser diode are disclosed. The method may include receiving at least a part of the measurement laser light, superimposing the reflected measurement laser light with a reference laser light and thereby providing at an interferometric phase and determining the change of distance to the object depending on the superimposition. In some embodiments, the measurement laser light may be emitted with low coherence and broad spectral bandwidth. An emitting wavelength of the measurement laser light may be fluctuating hop-freely within the spectral bandwidth causing interferometric phase fluctuations.Type: GrantFiled: June 17, 2014Date of Patent: April 12, 2016Assignee: HEXAGON TECHNOLOGY CENTER GMBHInventors: Yves Salvadé, Frank Przygodda, Marcel Rohner
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Publication number: 20150138530Abstract: Measuring apparatus comprising a tunable laser diode for generating a mono mode measurement radiation, said laser diode being designed as a laser beam source in such a way that an emission wavelength of the measurement radiation is variable within a wavelength range by means of the variation of a tuning parameter, comprising an absorption medium defining absorption lines within the wavelength range, comprising a memory having a line atlas for the absorption medium, comprising a detector for determining an absorptivity and comprising a control and evaluation unit for regulating the emission wavelength by means of the at least one tuning parameter in a manner dependent on the absorptivity determined in such a way that the emission wavelength remains stable.Type: ApplicationFiled: May 6, 2013Publication date: May 21, 2015Inventors: Thomas Lüthi, Burkhard Böckem, Yves Salvadé
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Publication number: 20140368832Abstract: Method and systems for determining a change of distance to an object by interferometry with emitting measurement laser light from a laser diode are disclosed. The method may include receiving at least a part of the measurement laser light, superimposing the reflected measurement laser light with a reference laser light and thereby providing at an interferometric phase and determining the change of distance to the object depending on the superimposition. In some embodiments, the measurement laser light may be emitted with low coherence and broad spectral bandwidth. An emitting wavelength of the measurement laser light may be fluctuating hop-freely within the spectral bandwidth causing interferometric phase fluctuations.Type: ApplicationFiled: June 17, 2014Publication date: December 18, 2014Inventors: Yves SALVADÉ, Frank PRZYGODDA, Marcel ROHNER
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Patent number: 8896843Abstract: A method for speckle mitigation in an interferometric distance meter comprises the steps of transmitting optical radiation with at least one wavelength ? to a target to be surveyed, receiving a portion of the optical radiation scattered back by the target in an optical axis (OA), wherein the optical radiation forms a speckle field, converting the received optical radiation into at least one received signal, determining a true distance to the target from the received signal by absolute or incremental interferometric distance measurements. In the method the true pointing direction relative to the optical axis (OA) is determined, wherein the distance error due to speckle effects is corrected.Type: GrantFiled: December 13, 2010Date of Patent: November 25, 2014Assignee: Leica Geosystems AGInventors: Marcel Rohner, Yves Salvade
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Patent number: 8289523Abstract: In a method for generating a synthetic wavelength, particularly for an interferometric distance measuring setup, with a primary laser source defining a primary frequency ?0 and at least a first sideband frequency ?1 of the primary frequency ?0, laser radiation with the first sideband frequency ?1 and a corresponding first wavelength is provided wherein the first sideband frequency ?1 is continuously shifted, particularly by modulating the primary laser source. The synthetic wavelength is generated by combining the first wavelength and a second wavelength which is defined by the primary laser source, particularly by superposition.Type: GrantFiled: September 26, 2007Date of Patent: October 16, 2012Assignee: Leica Geosystems AGInventors: Sébastien Le Floch, Yves Salvade, Thomas Jensen, Marcel Rohner
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Publication number: 20120242998Abstract: A method for speckle mitigation in an interferometric distance meter comprises the steps of transmitting optical radiation with at least one wavelength ? to a target to be surveyed, receiving a portion of the optical radiation scattered back by the target in an optical axis (OA), wherein the optical radiation forms a speckle field, converting the received optical radiation into at least one received signal, determining a true distance to the target from the received signal by absolute or incremental interferometric distance measurements. In the method the true pointing direction relative to the optical axis (OA) is determined, wherein the distance error due to speckle effects is corrected.Type: ApplicationFiled: December 13, 2010Publication date: September 27, 2012Applicant: LEICA GEOSYSTEMS AGInventors: Marcel Rohner, Yves Salvade
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Patent number: 7732752Abstract: A housing for a control device includes an enclosed cavity configured to secure an optical detection system, including a light source and a sensor, and a face of the enclosed cavity configured to include a window to allow light from the light source to scatter light off of a surface and configured to allow reception of the scattered light on the sensor. In this configuration the housing is structured to prevent exposure of the optical detection system to external elements such as the surface. Also disclosed is a homodyning system for use with a coherent light source optical pointing device.Type: GrantFiled: September 29, 2005Date of Patent: June 8, 2010Assignee: Logitech Europe S.A.Inventors: Olivier Mathis, Neil O'Connell, Olivier Theytaz, Peter Sheehan, Dennis O'Keeffe, Yves Salvade
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Publication number: 20100046003Abstract: In a method for generating a synthetic wavelength, particularly for an interferometric distance measuring setup, with a primary laser source defining a primary frequency U0 and at least a first sideband frequency U1 of the primary frequency U1, laser radiation with the first sideband frequency O1 and a corresponding first wavelength is provided wherein the first sideband frequency U1 is continuously shifted, particularly by modulating the primary laser source. The synthetic wavelength is generated by combining the first wavelength and a second wavelength which is defined by the primary laser source, particularly by superposition.Type: ApplicationFiled: September 26, 2007Publication date: February 25, 2010Applicant: LEICA GEOSYSTEMS AGInventors: Sébastien Le Floch, Yves Salvade, Thomas Jensen, Marcel Rohner
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Publication number: 20060131487Abstract: A housing for a control device includes an enclosed cavity configured to secure an optical detection system, including a light source and a sensor, and a face of the enclosed cavity configured to include a window to allow light from the light source to scatter light off of a surface and configured to allow reception of the scattered light on the sensor. In this configuration the housing is structured to prevent exposure of the optical detection system to external elements such as the surface. Also disclosed is a homodying system for use with a coherent light source optical pointing device.Type: ApplicationFiled: September 29, 2005Publication date: June 22, 2006Inventors: Olivier Mathis, Neil O'Connell, Olivier Theytaz, Peter Sheehan, Dennis O'Keeffe, Yves Salvade