Patents by Inventor Trevor Steele
Trevor Steele 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: 11067829Abstract: Embodiments of the invention provide patients with premium progressive lenses that are tailor-made to his or her specific and unique requirements and preferences. An interactive progressive lens optical design determining provides design technology that allows patients or eye care professionals to alter a progressive lens optical design in real-time, while continually displaying the selected lens' optical performance, until the most suitable lens has been designed. The progressive lens optical design determining software mixes and blends a number of cornerstone designs in varying ratios to achieve the desired lens.Type: GrantFiled: May 5, 2015Date of Patent: July 20, 2021Assignee: Crossbows Optical Ltd.Inventors: Trevor Steele, Hugh McLoughlin, Patrick McCollum, James McCartney, George Foster
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Publication number: 20170153462Abstract: Embodiments of the invention provide patients with premium progressive lenses that are tailor-made to his or her specific and unique requirements and preferences. An interactive progressive lens optical design determining provides design technology that allows patients or eye care professionals to alter a progressive lens optical design in real-time, while continually displaying the selected lens' optical performance, until the most suitable lens has been designed. The progressive lens optical design determining software mixes and blends a number of cornerstone designs in varying ratios to achieve the desired lens.Type: ApplicationFiled: May 5, 2015Publication date: June 1, 2017Inventors: Trevor STEELE, Hugh MCLOUGHLIN, Patrick MCCOLLUM, James MCCARTNEY, George FOSTER
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Patent number: 8287124Abstract: The invention generally relates to a lens and the method of manufacturing progressive addition lenses (PAL) to remove unwanted base out prism and minimize excessive convergence, comprising determining basic configuration of two major lens surfaces to provide a distance portion and near portion, wherein diopter power increases from the distance portion of the lens to the near portion; selecting an amount of prism reduction; and reducing base out prism that inherently occurs as diopter power increases by altering the configuration of the lens as a function of the amount of prism reduction to minimize any disruption of optical properties a lens while decreasing base out prism.Type: GrantFiled: August 22, 2011Date of Patent: October 16, 2012Assignee: Crossbows Optical LimitedInventors: Jeffrey P. Krall, Hugh McLoughlin, Trevor Steele, Andrew Whale
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Publication number: 20120019774Abstract: The invention generally relates to a lens and the method of manufacturing progressive addition lenses (PAL) to remove unwanted base out prism and minimize excessive convergence, comprising determining basic configuration of two major lens surfaces to provide a distance portion and near portion, wherein diopter power increases from the distance portion of the lens to the near portion; selecting an amount of prism reduction; and reducing base out prism that inherently occurs as diopter power increases by altering the configuration of the lens as a function of the amount of prism reduction to minimize any disruption of optical properties a lens while decreasing base out prism.Type: ApplicationFiled: August 22, 2011Publication date: January 26, 2012Inventors: Jeffrey P. Krall, Hugh McLoughlin, Trevor Steele, Andrew Whale
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Patent number: 8042940Abstract: The invention generally relates to a lens and the method of manufacturing progressive addition lenses (PAL) to remove unwanted base out prism and minimize excessive convergence, comprising determining basic configuration of two major lens surfaces to provide a distance portion and near portion, wherein diopter power increases from the distance portion of the lens to the near portion; selecting an amount of prism reduction; and reducing base out prism that inherently occurs as diopter power increases by altering the configuration of the lens as a function of the amount of prism reduction to minimize any disruption of optical properties a lens while decreasing base out prism.Type: GrantFiled: March 24, 2009Date of Patent: October 25, 2011Assignee: Crossbows Optical LimitedInventors: Jeffrey P. Krall, Hugh McLoughlin, Trevor Steele, Andrew Whale
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Publication number: 20100245762Abstract: The invention generally relates to a lens and the method of manufacturing progressive addition lenses (PAL) to remove unwanted base out prism and minimize excessive convergence, comprising determining basic configuration of two major lens surfaces to provide a distance portion and near portion, wherein diopter power increases from the distance portion of the lens to the near portion; selecting an amount of prism reduction; and reducing base out prism that inherently occurs as diopter power increases by altering the configuration of the lens as a function of the amount of prism reduction to minimize any disruption of optical properties a lens while decreasing base out prismType: ApplicationFiled: March 24, 2009Publication date: September 30, 2010Inventors: Jeffrey P. Krall, Hugh McLoughlin, Trevor Steele, Andrew Whale
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Patent number: 7033023Abstract: A system and method for designing a progressive lens are provided. Mean power is specified at points distributed over the entire surface of the lens and lens height is specified around the edge of the lens. Lens height is determined at the points consistent with the specified mean power and the lens edge height in part by solving a partial differential equation of the elliptic type subject to the lens edge height as a boundary condition. A successive over-relaxation technique may be employed to converge on the solution to the partial differential equation, and an over-relaxation factor may be determined to most efficiently relax the equation.Type: GrantFiled: August 17, 2004Date of Patent: April 25, 2006Assignee: Signet Armorlite, Inc.Inventors: Trevor Steele, Hugh McLoughlin, Derek Payne
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Publication number: 20050012895Abstract: A system and method for designing a progressive lens are provided. Mean power is specified at points distributed over the entire surface of the lens and lens height is specified around the edge of the lens. Lens height is determined at the points consistent with the specified mean power and the lens edge height in part by solving a partial differential equation of the elliptic type subject to the lens edge height as a boundary condition. A successive over-relaxation technique may be employed to converge on the solution to the partial differential equation, and an over-relaxation factor may be determined to most efficiently relax the equation.Type: ApplicationFiled: August 17, 2004Publication date: January 20, 2005Inventors: Trevor Steele, Hugh McLoughlin, Derek Payne
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Patent number: 6776486Abstract: A system and method for designing a progressive lens. Mean power is specified at points distributed over the entire surface of the lens and lens height is specified around the edge of the lens. Lens height is determined at the points consistent with the specified mean power and the lens edge height in part by solving a partial differential equation of the elliptic type subject to the lens edge height as a boundary condition. A successive over-relaxation technique may be employed to converge on the solution to the partial differential equation, and an over-relaxation factor may be determined to most efficiently relax the equation.Type: GrantFiled: August 9, 2002Date of Patent: August 17, 2004Assignee: Crossbows Optical LimitedInventors: Trevor Steele, Hugh McLoughlin, Derek Payne
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Publication number: 20030223033Abstract: A system and method for designing a progressive lens. Mean power is specified at points distributed over the entire surface of the lens and lens height is specified around the edge of the lens. Lens height is determined at the points consistent with the specified mean power and the lens edge height in part by solving a partial differential equation of the elliptic type subject to the lens edge height as a boundary condition. A successive over-relaxation technique may be employed to converge on the solution to the partial differential equation, and an over-relaxation factor may be determined to most efficiently relax the equation.Type: ApplicationFiled: August 9, 2002Publication date: December 4, 2003Applicant: Crossbows Optical LimitedInventors: Trevor Steele, Hugh McLoughlin, Derek Payne