Patents by Inventor Michael A. KARAVITIS
Michael A. KARAVITIS 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: 20170172803Abstract: An imaging-based laser system can include a laser-beam system, configured to generate and scan a beam of laser pulses with an adjustable laser-power parameter to points of a scan-pattern in an eye, and an imaging-based laser-controller, configured to image a layer in the eye, to control the scanning of the beam of laser pulses to the points of the scan-pattern, and to control a laser-power parameter of the laser pulses according to the distance of the points of the scan-pattern from the imaged layer.Type: ApplicationFiled: March 7, 2017Publication date: June 22, 2017Inventors: GAUTAM CHAUDHARY, PETER GOLDSTEIN, IMRE HEGEDUS, CARLOS GERMAN SUAREZ, DAVID CALLIGORI, MICHAEL KARAVITIS
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Patent number: 9622913Abstract: An imaging-based laser system can include a laser-beam system, configured to generate and scan a beam of laser pulses with an adjustable laser-power parameter to points of a scan-pattern in an eye, and an imaging-based laser-controller, configured to image a layer in the eye, to control the scanning of the beam of laser pulses to the points of the scan-pattern, and to control a laser-power parameter of the laser pulses according to the distance of the points of the scan-pattern from the imaged layer.Type: GrantFiled: May 18, 2011Date of Patent: April 18, 2017Assignee: Alcon LenSx, Inc.Inventors: Gautam Chaudhary, Peter Goldstein, Imre Hegedus, Carlos German Suárez, David Calligori, Michael Karavitis
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Patent number: 9408749Abstract: Techniques, apparatus and systems for laser surgery including imaging-guided surgery techniques, apparatus and systems.Type: GrantFiled: April 30, 2015Date of Patent: August 9, 2016Assignee: Alcon LenSx, Inc.Inventors: Ronald M. Kurtz, Ferenc Raksi, Michael Karavitis
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Patent number: 9325148Abstract: Designs and techniques for constructing and operating femtosecond pulse lasers are provided. One example of a laser engine includes an oscillator that generates and outputs a beam of femtosecond seed pulses, a stretcher-compressor that stretches a duration of the seed pulses, and an amplifier that receives the stretched seed pulses, amplifies an amplitude of selected stretched seed pulses to create amplified stretched pulses, and outputs a laser beam of amplified stretched pulses back to the stretcher-compressor that compresses their duration and outputs a laser beam of femtosecond pulses. The amplifier includes a dispersion controller that compensates a dispersion of the amplified stretched pulses, making the repetition rate of the laser adjustable between procedures or according to the speed of scanning. The laser engine can be compact with a total optical path of less than 500 meters, and have a low number of optical elements, e.g. less than 50.Type: GrantFiled: December 23, 2014Date of Patent: April 26, 2016Assignee: Alcon LenSx, Inc.Inventor: Michael Karavitis
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Publication number: 20150328045Abstract: Techniques, apparatus and systems for laser surgery including imaging-guided surgery techniques, apparatus and systems.Type: ApplicationFiled: April 30, 2015Publication date: November 19, 2015Inventors: Ronald M. Kurtz, Ferenc Raksi, Michael Karavitis
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Patent number: 9054479Abstract: Designs and techniques for constructing and operating femtosecond pulse lasers are provided. One example of a laser engine includes an oscillator that generates and outputs a beam of femtosecond seed pulses, a stretcher-compressor that stretches a duration of the seed pulses, and an amplifier that receives the stretched seed pulses, amplifies an amplitude of selected stretched seed pulses to create amplified stretched pulses, and outputs a laser beam of amplified stretched pulses back to the stretcher-compressor that compresses their duration and outputs a laser beam of femtosecond pulses. The amplifier includes a dispersion controller that compensates a dispersion of the amplified stretched pulses, making the repetition rate of the laser adjustable between procedures or according to the speed of scanning. The laser engine can be compact with a total optical path of less than 500 meters, and have a low number of optical elements, e.g. less than 50.Type: GrantFiled: February 24, 2010Date of Patent: June 9, 2015Assignee: Alcon LenSx, Inc.Inventor: Michael Karavitis
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Patent number: 9044303Abstract: Techniques, apparatus and systems for laser surgery including imaging-guided surgery techniques, apparatus and systems.Type: GrantFiled: December 23, 2013Date of Patent: June 2, 2015Assignee: Alcon LenSx, Inc.Inventors: Ronald M. Kurtz, Ferenc Raksi, Michael Karavitis
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Publication number: 20150117480Abstract: Designs and techniques for constructing and operating femtosecond pulse lasers are provided. One example of a laser engine includes an oscillator that generates and outputs a beam of femtosecond seed pulses, a stretcher-compressor that stretches a duration of the seed pulses, and an amplifier that receives the stretched seed pulses, amplifies an amplitude of selected stretched seed pulses to create amplified stretched pulses, and outputs a laser beam of amplified stretched pulses back to the stretcher-compressor that compresses their duration and outputs a laser beam of femtosecond pulses. The amplifier includes a dispersion controller that compensates a dispersion of the amplified stretched pulses, making the repetition rate of the laser adjustable between procedures or according to the speed of scanning. The laser engine can be compact with a total optical path of less than 500 meters, and have a low number of optical elements, e.g. less than 50.Type: ApplicationFiled: December 23, 2014Publication date: April 30, 2015Inventor: Michael Karavitis
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Patent number: 8953651Abstract: Designs and techniques for constructing and operating femtosecond pulse lasers are provided. One example of a laser engine includes an oscillator that generates and outputs a beam of femtosecond seed pulses, a stretcher-compressor that stretches a duration of the seed pulses, and an amplifier that receives the stretched seed pulses, amplifies an amplitude of selected stretched seed pulses to create amplified stretched pulses, and outputs a laser beam of amplified stretched pulses back to the stretcher-compressor that compresses their duration and outputs a laser beam of femtosecond pulses. The amplifier includes a dispersion controller that compensates a dispersion of the amplified stretched pulses, making the repetition rate of the laser adjustable between procedures or according to the speed of scanning. The laser engine can be compact with a total optical path of less than 500 meters, and have a low number of optical elements, e.g. less than 50.Type: GrantFiled: February 24, 2010Date of Patent: February 10, 2015Assignee: Alcon LenSx, Inc.Inventor: Michael Karavitis
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Patent number: 8908739Abstract: A laser adjustment system can include an adjustable seed-beam restrictor, configured to be attachable to a stretcher-compressor in a transverse-adjustable manner, and to restrict an incidence of a seed beam, generated by an oscillator, on the stretcher-compressor, wherein the stretcher-compressor is configured to be integrated into a chirped pulse amplification laser engine, and to stretch a duration of seed pulses of the seed beam.Type: GrantFiled: December 23, 2011Date of Patent: December 9, 2014Assignee: Alcon LenSx, Inc.Inventor: Michael Karavitis
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Publication number: 20140188093Abstract: Techniques, apparatus and systems for laser surgery including imaging-guided surgery techniques, apparatus and systems.Type: ApplicationFiled: December 23, 2013Publication date: July 3, 2014Applicant: ALCON LENSX, INC.Inventors: Ronald M. Kurtz, Ferenc Raksi, Michael Karavitis
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Patent number: 8764737Abstract: Techniques, apparatus and systems for laser surgery including imaging-guided surgery techniques, apparatus and systems.Type: GrantFiled: September 5, 2008Date of Patent: July 1, 2014Assignee: Alcon LenSx, Inc.Inventors: Ronald M. Kurtz, Ferenc Raksi, Michael Karavitis
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Publication number: 20130163622Abstract: A laser adjustment system can include an adjustable seed-beam restrictor, configured to be attachable to a stretcher-compressor in a transverse-adjustable manner, and to restrict an incidence of a seed beam, generated by an oscillator, on the stretcher-compressor, wherein the stretcher-compressor is configured to be integrated into a chirped pulse amplification laser engine, and to stretch a duration of seed pulses of the seed beam.Type: ApplicationFiled: December 23, 2011Publication date: June 27, 2013Applicant: ALCON LENSX, INC.Inventor: Michael Karavitis
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Patent number: 8279901Abstract: Designs and techniques for constructing and operating femtosecond pulse lasers are provided. One example of a laser engine includes an oscillator that generates and outputs a beam of femtosecond seed pulses, a stretcher-compressor that stretches a duration of the seed pulses, and an amplifier that receives the stretched seed pulses, amplifies an amplitude of selected stretched seed pulses to create amplified stretched pulses, and outputs a laser beam of amplified stretched pulses back to the stretcher-compressor that compresses their duration and outputs a laser beam of femtosecond pulses. The amplifier includes a dispersion controller that compensates a dispersion of the amplified stretched pulses, making the repetition rate of the laser adjustable between procedures or according to the speed of scanning. The laser engine can be compact with a total optical path of less than 500 meters, and have a low number of optical elements, e.g. less than 50.Type: GrantFiled: February 24, 2010Date of Patent: October 2, 2012Assignee: Alcon LenSx, Inc.Inventor: Michael Karavitis
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Patent number: 8231612Abstract: A method of photoaltering a material using a pulsed laser beam includes selecting a first pulse energy and a first focal point separation based on a relationship of pulse energy and focal point separation combinations enabling layer separation of the material by photoalteration, and scanning the pulsed laser beam along a scan region at the first pulse energy and the first focal point separation. The relationship has a slope and has a distinct change in the slope. The distinct change in the slope is associated with a second pulse energy of the relationships and the first pulse energy is equal to or less than the second pulse energy.Type: GrantFiled: November 19, 2007Date of Patent: July 31, 2012Assignee: AMO Development LLC.Inventors: Ruben Zadoyan, Michael Karavitis, Ronald M. Kurtz
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Patent number: 8089679Abstract: A system for laser amplification includes a dual-crystal Pockels cell which is used to control emission of laser pulses from an ultra-fast laser. The Pockels cell is constructed to enable adjustment of the rotational orientation of one crystal relative to the other crystal. The rotational orientation of one or both crystals in the Pockels cell is adjusted to control sidebands in the laser pulse.Type: GrantFiled: September 29, 2010Date of Patent: January 3, 2012Assignee: AMO Development LLC.Inventors: Ruben Zadoyan, Michael Karavitis
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Patent number: 8057463Abstract: A system for adaptive laser scanning correction includes a laser scanner coupled to a controller. The controller develops control signals for the laser scanner for a directed scan pattern that is modified to compensate for a characteristic scan-pattern distortion introduced by the laser scanner. The laser scanner responds to the control signals to provide an actual scan pattern approaching a target scan-pattern shape. The system may be useful for ophthalmologic laser surgery and other applications requiring precise control over scan pattern shape and a high scanning speed.Type: GrantFiled: April 7, 2006Date of Patent: November 15, 2011Assignee: AMO Development, LLC.Inventors: Ruben Zadoyan, Michael Karavitis, Peter Goldstein, Mike White, Michael Otter
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Publication number: 20110206070Abstract: Designs and techniques for constructing and operating femtosecond pulse lasers are provided. One example of a laser engine includes an oscillator that generates and outputs a beam of femtosecond seed pulses, a stretcher-compressor that stretches a duration of the seed pulses, and an amplifier that receives the stretched seed pulses, amplifies an amplitude of selected stretched seed pulses to create amplified stretched pulses, and outputs a laser beam of amplified stretched pulses back to the stretcher-compressor that compresses their duration and outputs a laser beam of femtosecond pulses. The amplifier includes a dispersion controller that compensates a dispersion of the amplified stretched pulses, making the repetition rate of the laser adjustable between procedures or according to the speed of scanning. The laser engine can be compact with a total optical path of less than 500 meters, and have a low number of optical elements, e.g. less than 50.Type: ApplicationFiled: February 24, 2010Publication date: August 25, 2011Inventor: Michael Karavitis
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Publication number: 20110206073Abstract: Designs and techniques for constructing and operating femtosecond pulse lasers are provided. One example of a laser engine includes an oscillator that generates and outputs a beam of femtosecond seed pulses, a stretcher-compressor that stretches a duration of the seed pulses, and an amplifier that receives the stretched seed pulses, amplifies an amplitude of selected stretched seed pulses to create amplified stretched pulses, and outputs a laser beam of amplified stretched pulses back to the stretcher-compressor that compresses their duration and outputs a laser beam of femtosecond pulses. The amplifier includes a dispersion controller that compensates a dispersion of the amplified stretched pulses, making the repetition rate of the laser adjustable between procedures or according to the speed of scanning. The laser engine can be compact with a total optical path of less than 500 meters, and have a low number of optical elements, e.g. less than 50.Type: ApplicationFiled: February 24, 2010Publication date: August 25, 2011Inventor: Michael Karavitis
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Publication number: 20110206072Abstract: Designs and techniques for constructing and operating femtosecond pulse lasers are provided. One example of a laser engine includes an oscillator that generates and outputs a beam of femtosecond seed pulses, a stretcher-compressor that stretches a duration of the seed pulses, and an amplifier that receives the stretched seed pulses, amplifies an amplitude of selected stretched seed pulses to create amplified stretched pulses, and outputs a laser beam of amplified stretched pulses back to the stretcher-compressor that compresses their duration and outputs a laser beam of femtosecond pulses. The amplifier includes a dispersion controller that compensates a dispersion of the amplified stretched pulses, making the repetition rate of the laser adjustable between procedures or according to the speed of scanning. The laser engine can be compact with a total optical path of less than 500 meters, and have a low number of optical elements, e.g. less than 50.Type: ApplicationFiled: February 24, 2010Publication date: August 25, 2011Inventor: Michael Karavitis