Patents by Inventor Fabio Ferrario
Fabio Ferrario 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: 11090728Abstract: Apparatus for additive manufacturing includes:—a platform adapted to receive a powder bed that is laid thereon; —a laser source adapted to emit a laser beam towards the powder bed; —a first doctor blade and a second doctor blade opposite to the first doctor blade and located at a predetermined distance from said first doctor blade, the doctor blades being adapted to move in the same direction (X), so as to slide along the whole platform and define a work area, into which the laser beam is directed in order to manufacture a product; wherein the powder bed (102) is laid out by the first doctor blade, and the first doctor blade is provided with an emission opening adapted to produce a blade of a predetermined gas directed towards the powder bed, and the second doctor blade is provided with a suction opening for sucking in the gas when the product is complete, the suction opening being provided with a sensor adapted to measure the turbulence of the gas flow in the work area, so as to maintain, through a control uType: GrantFiled: April 13, 2017Date of Patent: August 17, 2021Assignee: 3D New Technologies S.R.L.Inventors: Mauro Varetti, Fabio Ferrario
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Patent number: 10938176Abstract: The present invention relates to a diode laser with external spectrally selective feedback. It is an object of the invention is to provide an external cavity diode laser with wavelength stabilization which allows an increased overall output power in the desired wavelength range.Type: GrantFiled: May 8, 2019Date of Patent: March 2, 2021Assignee: HIGHYAG LASERTECHNOLOGIE GMBHInventors: Haro Fritsche, Ralf Koch, Bastian Kruschke, Fabio Ferrario
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Publication number: 20200164576Abstract: An apparatus for additive manufacturing includes a platform adapted to receive a powder bed laid thereon; two support columns vertically fastened to opposite sides of the platform; a cross member transversally fastened between the columns; a device based on a laser-diode laser source, fixed to the cross member and adapted to emit a laser beam towards the powder bed; a doctor blade transversally fastened to the basis of the columns, the columns being adapted to slide along the sides, thus dragging the doctor blade on the powder bed; wherein the doctor blade slides in a direction opposite to the direction in which the laser beam is emitted by the device.Type: ApplicationFiled: December 19, 2016Publication date: May 28, 2020Inventor: Fabio FERRARIO
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Publication number: 20190267772Abstract: The present invention relates to a diode laser with external spectrally selective feedback. It is an object of the invention is to provide an external cavity diode laser with wavelength stabilization which allows an increased overall output power in the desired wavelength range.Type: ApplicationFiled: May 8, 2019Publication date: August 29, 2019Inventors: Haro FRITSCHE, Ralf KOCH, Bastian KRUSCHKE, Fabio FERRARIO
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Publication number: 20190202007Abstract: Doctor blade for an apparatus for additive manufacturing, adapted to move transversally on a platform housing a powder bed, in a direction parallel to the plane in which the powder bed lies, wherein the doctor blade is provided with at least one illuminator arranged in the lower part of the doctor blade itself, the at least one illuminator being an emitter with an emission spectrum centered in the spectral region from 300 to 1000 nm.Type: ApplicationFiled: April 13, 2017Publication date: July 4, 2019Inventors: Mauro Varetti, Fabio Ferrario
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Publication number: 20190176233Abstract: Apparatus for additive manufacturing includes:—a platform adapted to receive a powder bed that is laid thereon;—a laser source adapted to emit a laser beam towards the powder bed;—a first doctor blade and a second doctor blade opposite to the first doctor blade and located at a predetermined distance from said first doctor blade, the doctor blades being adapted to move in the same direction (X), so as to slide along the whole platform and define a work area, into which the laser beam is directed in order to manufacture a product; wherein the powder bed (102) is laid out by the first doctor blade, and the first doctor blade is provided with an emission opening adapted to produce a blade of a predetermined gas directed towards the powder bed, and the second doctor blade is provided with a suction opening for sucking in the gas when the product is complete, the suction opening being provided with a sensor adapted to measure the turbulence of the gas flow in the work area, so as to maintain, through a control uniType: ApplicationFiled: April 13, 2017Publication date: June 13, 2019Inventors: Mauro Varetti, Fabio Ferrario
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Patent number: 10320148Abstract: The present invention relates to a diode laser with external spectrally selective feedback. It is an object of the invention is to provide an external cavity diode laser with wavelength stabilization which allows an increased overall output power in the desired wavelength range.Type: GrantFiled: September 16, 2015Date of Patent: June 11, 2019Assignee: Highyag LaserTechnologie GmbHInventors: Haro Fritsche, Ralf Koch, Bastian Kruschke, Fabio Ferrario
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Publication number: 20190118259Abstract: Apparatus for additive manufacturing includes: a platform adapted to receive a powder bed that is laid thereon; a laser source adapted to emit a laser beam towards the powder bed; a doctor blade adapted to move transversally relative to the platform in a direction parallel to the plane in which the powder bed lies, thereby moving the powder towards a work area, in which the laser beam progressively manufactures a product by sintering the layer of powder just deposited by the doctor blade; wherein the doctor blade is provided with at least one illuminator arranged in the lower part of the doctor blade itself, the at least one illuminator being an emitter with an emission range centered in the spectral region from 300 to 1000 nm.Type: ApplicationFiled: April 13, 2017Publication date: April 25, 2019Inventors: Mauro Varetti, Fabio Ferrario
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Publication number: 20170302056Abstract: The present invention relates to a diode laser with external spectrally selective feedback. It is an object of the invention is to provide an external cavity diode laser with wavelength stabilization which allows an increased overall output power in the desired wavelength range.Type: ApplicationFiled: September 16, 2015Publication date: October 19, 2017Inventors: Haro FRITSCHE, Ralf KOCH, Bastian KRUSCHKE, Fabio FERRARIO
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Patent number: 9616522Abstract: The invention discloses a device for laser material machining, with at least two laser beam sources (2a-2c) which emit laser beams (5a-5c) of different wavelengths, with associated beam imaging means (3a-3c), to configure appropriately the beam paths of each associated laser beam (5a-5c), a beam superposition device (6), to overlay the laser beams (5a-5c) on each other, and imaging optics (8), to image the overlaid laser beams (5a-5c) onto a workpiece (12) so that respective focal points are associated with the laser beams (5a-5c) in the focus of the imaging optics (8) on the workpiece (12), wherein the beam imaging means image the laser beams (5a-5c) onto the respective focal points in a predefined arrangement which can be varied by means of the beam imaging means (3a-3c).Type: GrantFiled: November 29, 2013Date of Patent: April 11, 2017Assignee: DIRECTPHOTONICS INDUSTRIES GMBHInventors: Stefan Heinemann, Haro Fritsche, Bastian Kruschke, Wolfgang Gries, Fabio Ferrario, Ralf Koch
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Publication number: 20160094012Abstract: The current invention concerns a laser beam generating device and a method for adjusting a wavelength of a laser beam. The current invention addresses the objective of further improving laser beam generation and wavelength adjustment. The current invention particularly allows for simplifying the combination of laser source elements such that they operate at different, but controlled, wavelengths with their beams overlapping. The laser beam generating device (100) comprises at least one laser source element (11) and an external cavity. The external cavity comprises an output coupler (40) and a periodic filter element (30) arranged between the laser source element (11) and the output coupler (40). The laser beam generating device is characterized in that the laser beam generating device further comprises at least two cut-off filter elements (21, 22) each arranged between the laser source element (11) and the periodic filter element (30).Type: ApplicationFiled: May 13, 2015Publication date: March 31, 2016Applicant: DirectPhotonic Industries GmbHInventors: FABIO FERRARIO, BASTIAN KRUSCHKE, HARO FRITSCHE, RALF KOCH
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Publication number: 20150321286Abstract: The invention discloses a device for laser material machining, with at least two laser beam sources (2a-2c) which emit laser beams (5a-5c) of different wavelengths, with associated beam imaging means (3a-3c), to configure appropriately the beam paths of each associated laser beam (5a-5c), a beam superposition device (6), to overlay the laser beams (5a-5c) on each other, and imaging optics (8), to image the overlaid laser beams (5a-5c) onto a workpiece (12) so that respective focal points are associated with the laser beams (5a-5c) in the focus of the imaging optics (8) on the workpiece (12), wherein the beam imaging means image the laser beams (5a-5c) onto the respective focal points in a predefined arrangement which can be varied by means of the beam imaging means (3a-3c).Type: ApplicationFiled: November 29, 2013Publication date: November 12, 2015Inventors: Stefan Heinemann, Haro Fritsche, Bastian Kruschke, Wolfgang Gries, Fabio Ferrario, Ralf Koch