Patents by Inventor Gary P. Gray
Gary P. Gray 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: 20030071967Abstract: An automated, objective method for determining the accommodative range and aberration profile of an eye using a wavefront sensor that iteratively determines the change in accommodation of the lens of an eye.Type: ApplicationFiled: October 15, 2001Publication date: April 17, 2003Inventors: John A. Campin, Gary P. Gray, George Pettit
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Patent number: 6451008Abstract: A surface treatment laser beam delivery and tracking system is provided. The laser generates laser light along a original beam path at an energy level suitable for treating (e.g., eroding) a surface. An optical translator shifts the original beam path onto a resulting beam path. An optical angle adjuster changes the angle of the resulting beam path relative to the original beam path such that the laser light is incident on, and spatially distributed, the surface to be treated. A motion sensor transmits light energy to the surface and receives reflected light energy from the surface via the optical angle adjuster. The light energy transmitted by the motion sensor travels on a path that is parallel to the shifted beam as they travel through the optical angle adjuster. The reflected light energy is used by the motion sensor to detect movement of the surface relative to the original beam path and generate error control signals indicative of the movement.Type: GrantFiled: August 17, 1999Date of Patent: September 17, 2002Assignee: Alcon, Inc.Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, Jr., John E. McWhirter
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Patent number: 6394605Abstract: An automated focusing method for a wavefront sensor that iteratively determines the best optics setting for the wavefront sensor by making objective measurements of the patient's focus without the need for subjective information from the patient.Type: GrantFiled: May 23, 2001Date of Patent: May 28, 2002Assignee: Alcon Universal Ltd.Inventors: John A. Campin, Gary P. Gray, George H. Pettit
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Publication number: 20020013577Abstract: A surface treatment laser beam delivery and tracking system is provided. The laser generates laser light along a original beam path at an energy level suitable for treating (e.g., eroding) a surface. An optical translator shifts the original beam path onto a resulting beam path. An optical angle adjuster changes the angle of the resulting beam path relative to the original beam path such that the laser light is incident on, and spatially distributed, the surface to be treated. A motion sensor transmits light energy to the surface and receives reflected light energy from the surface via the optical angle adjuster. The light energy transmitted by the motion sensor travels on a path that is parallel to the shifted beam as they travel through the optical angle adjuster. The reflected light energy is used by the motion sensor to detect movement of the surface relative to the original beam path and generate error control signals indicative of the movement.Type: ApplicationFiled: July 31, 2001Publication date: January 31, 2002Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, John E. McWhirter
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Publication number: 20010031958Abstract: An ophthalmic laser system includes a laser beam delivery system and an eye tracker responsive to movement of the eye operable with a laser beam delivery system for ablating corneal material of the eye through placement of laser beam shot on a selected area of the cornea of the eye. The shots are fired in a sequence and pattern such that no laser shots are fired at consecutive locations and no consecutive shots overlap. The pattern is moved in response to the movement of the eye.Type: ApplicationFiled: December 21, 2000Publication date: October 18, 2001Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, John E. McWhirter
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Patent number: 6302879Abstract: A surface treatment laser beam delivery and tracking system is provided. The laser generates laser light along a original beam path at an energy level suitable for treating (e.g., eroding) a surface. An optical translator shifts the original beam path onto a resulting beam path. An optical angle adjuster changes the angle of the resulting beam path relative to the original beam path such that the laser light is incident on, and spatially distributed, the surface to be treated. A motion sensor transmits light energy to the surface and receives reflected light energy from the surface via the optical angle adjuster. The light energy transmitted by the motion sensor travels on a path that is parallel to the shifted beam as they travel through the optical angle adjuster. The reflected light energy is used by the motion sensor to detect movement of the surface relative to the original beam path and generate error control signals indicative of the movement.Type: GrantFiled: March 6, 1998Date of Patent: October 16, 2001Assignee: Autonomous Technologies Corp.Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, Jr., John E. McWhirter
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Publication number: 20010025172Abstract: An ophthalmic laser system includes a laser beam delivery system and an eye tracker responsive to movement of the eye operable with a laser beam delivery system for ablating corneal material of the eye through placement of laser beam shot on a selected area of the cornea of the eye. The shots are fired in a sequence and pattern such that no laser shots are fired at consecutive locations and no consecutive shots overlap. The pattern is moved in response to the movement of the eye.Type: ApplicationFiled: December 21, 2000Publication date: September 27, 2001Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, John E. McWhirter
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Publication number: 20010021846Abstract: An ophthalmic laser system includes a laser beam delivery system and an eye tracker responsive to movement of the eye operable with a laser beam delivery system for ablating corneal material of the eye through placement of laser beam shot on a selected area of the cornea of the eye. The shots are fired in a sequence and pattern such that no laser shots are fired at consecutive locations and no consecutive shots overlap. The pattern is moved in response to the movement of the eye.Type: ApplicationFiled: December 21, 2000Publication date: September 13, 2001Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, John E. McWhirter
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Publication number: 20010016735Abstract: An ophthalmic laser system includes a laser beam delivery system and an eye tracker responsive to movement of the eye operable with a laser beam delivery system for ablating corneal material of the eye through placement of laser beam shot on a selected area of the cornea of the eye. The shots are fired in a sequence and pattern such that no laser shots are fired at consecutive locations and no consecutive shots overlap. The pattern is moved in response to the movement of the eye.Type: ApplicationFiled: December 21, 2000Publication date: August 23, 2001Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, John E. McWhirter
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Publication number: 20010016737Abstract: An ophthalmic laser system includes a laser beam delivery system and an eye tracker responsive to movement of the eye operable with a laser beam delivery system for ablating corneal material of the eye through placement of laser beam shot on a selected area of the cornea of the eye. The shots are fired in a sequence and pattern such that no laser shots are fired at consecutive locations and no consecutive shots overlap. The pattern is moved in response to the movement of the eye.Type: ApplicationFiled: December 21, 2000Publication date: August 23, 2001Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, John E. McWhirter
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Publication number: 20010016733Abstract: An ophthalmic laser system includes a laser beam delivery system and an eye tracker responsive to movement of the eye operable with a laser beam delivery system for ablating corneal material of the eye through placement of laser beam shot on a selected area of the cornea of the eye. The shots are fired in a sequence and pattern such that no laser shots are fired at consecutive locations and no consecutive shots overlap. The pattern is moved in response to the movement of the eye.Type: ApplicationFiled: December 21, 2000Publication date: August 23, 2001Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, John E. McWhirter
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Publication number: 20010016734Abstract: An ophthalmic laser system includes a laser beam delivery system and an eye tracker responsive to movement of the eye operable with a laser beam delivery system for ablating corneal material of the eye through placement of laser beam shot on a selected area of the cornea of the eye. The shots are fired in a sequence and pattern such that no laser shots are fired at consecutive locations and no consecutive shots overlap. The pattern is moved in response to the movement of the eye.Type: ApplicationFiled: December 21, 2000Publication date: August 23, 2001Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, John E. McWhirter
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Patent number: 6261220Abstract: A method and system are provided for eroding or ablating a shaped volume of an eye's corneal tissue in accordance with the treatment of a specified eye condition. To determine the laser beam shot pattern, a plurality of laser beam shots of uniform intensity are first selected to form a uniform shot pattern of uniform shot density. The laser beam shots applied in accordance with the uniform shot pattern of uniform shot density would be capable of eroding a volume of the corneal tissue of uniform height. The volume of uniform height is approximately equivalent to that of the shaped volume. The laser beam shots are applied to the corneal tissue in a spatially distributed pattern spread over an area approximately equivalent to the surface area of the shaped volume to be eroded. The spatially distributed pattern extends the uniform shot pattern in fixed angles from a reference position on the shaped volume representative of the shaped volume's axis of symmetry.Type: GrantFiled: October 21, 1998Date of Patent: July 17, 2001Assignee: Autonomous Technologies CorporationInventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray
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Patent number: 5980513Abstract: A surface treatment laser beam delivery and tracking system is provided. The laser generates laser light along a original beam path at an energy level suitable for treating (e.g., eroding) a surface. An optical translator shifts the original beam path onto a resulting beam path. An optical angle adjuster changes the angle of the resulting beam path relative to the original beam path such that the laser light is incident on, and spatially distributed, the surface to be treated. A motion sensor transmits light energy to the surface and receives reflected light energy from the surface via the optical angle adjuster. The light energy transmitted by the motion sensor travels on a path that is parallel to the shifted beam as they travel through the optical angle adjuster. The reflected light energy is used by the motion sensor to detect movement of the surface relative to the original beam path and generate error control signals indicative of the movement.Type: GrantFiled: April 25, 1994Date of Patent: November 9, 1999Assignee: Autonomous Technologies Corp.Inventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray, Neil Zepkin, George Richard Downes, Jr., John E. McWhirter
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Patent number: 5849006Abstract: A method and system are provided for eroding or ablating a shaped volume of an eye's corneal tissue in accordance with the treatment of a specified eye condition. To determine the laser beam shot pattern, a plurality of laser beam shots of uniform intensity are first selected to form a uniform shot pattern of uniform shot density. The laser beam shots applied in accordance with the uniform shot pattern of uniform shot density would be capable of eroding a volume of the corneal tissue of uniform height. The volume of uniform height is approximately equivalent to that of the shaped volume. The laser beam shots are applied to the corneal tissue in a spatially distributed pattern spread over an area approximately equivalent to the surface area of the shaped volume to be eroded. The spatially distributed pattern extends the uniform shot pattern in fixed angles from a reference position on the shaped volume representative of the shaped volume's axis of symmetry.Type: GrantFiled: April 25, 1994Date of Patent: December 15, 1998Assignee: Autonomous Technologies CorporationInventors: Rudolph W. Frey, James H. Burkhalter, Gary P. Gray
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Patent number: 5740803Abstract: A method and system are provided for locating the center of the entrance pupil of an eye after the pupil thereof has been dilated. A first image of an eye is formed prior to pupil dilation. The center of the undilated pupil is referenced to a reference image of an anatomical landmark of the eye that appears in the first image. A second image of the eye is then formed when the pupil is dilated. When the reference image is positioned on an image of the anatomical landmark appearing in the second image, the center of the undilated pupil referenced to the reference image defines the center of the entrance pupil of the eye.Type: GrantFiled: March 7, 1997Date of Patent: April 21, 1998Assignee: Autonomous Technologies CorporationInventors: Gary P. Gray, Charline A. Gauthier, Ioannis G. Pallikaris
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Patent number: 5416463Abstract: A portable electronic bar code reader having an improved mechanism for producing sounds. The mechanism includes two piezoelectric disks, each positioned in a separate Helmholtz resonator tuned to a predetermined acoustic frequency at which the piezoelectric disks resonate. The mechanism also includes electronic circuitry for exciting the two piezoelectric disks at the predetermined frequency. The Helmholtz resonators are placed within the bar code reader and drive separate sound channels that are connected to opposite laterally directed sides of the bar code reader. When the piezoelectric disks are driven in phase at the predetermined frequency, the acoustic energy emitted from the two Helmholtz resonator combines in phase in the place where the user is located.Type: GrantFiled: November 18, 1992Date of Patent: May 16, 1995Assignee: Intermec CorporationInventors: Paul D. Higgins, Jr., Gary P. Gray, Herbert T. Chaudiere