Patents by Inventor Gerrit Ludolph Van Der Heijde
Gerrit Ludolph Van Der Heijde 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: 20190082953Abstract: A Method of evaluating a correspondence between a target surface and a reconstructed surface representing the target surface is includes constructing the reconstructed surface by processing information obtained by illuminating the target surface with a pattern of light of a stimulator source, and capturing a reflected image of the pattern of light on an image target. The method further includes the steps of: determining a reference image point on the image target corresponding to a reference stimulator point on the stimulator source; calculating for the reference image point, using the reconstructed surface; a residual representing the correspondence between the target surface and the reconstructed surface; and displaying the residual together with the reflected image.Type: ApplicationFiled: September 11, 2018Publication date: March 21, 2019Inventors: Victor Arni de Paz Sicam, Joris-Joost Snellenburg, Gerrit Ludolph van der Heijde
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Patent number: 9004689Abstract: A method of determining a corneal thickness and an apparatus for determining said is provided. The method comprises the following the steps: —illuminating a cornea by a plurality of stimulator point light sources, capturing an image of the cornea comprising reflected images of the stimulator point light sources, obtaining a model representing an anterior surface of the cornea, —constructing a second model representing a posterior surface of the cornea from the image by ray-tracing the reflected images of the stimulator point light sources towards the model representing the anterior surface of the cornea, determining the corneal thickness from the model representing the anterior surface and the second model representing the posterior surface.Type: GrantFiled: April 16, 2009Date of Patent: April 14, 2015Assignee: Vereniging Vu-WindesheimInventors: Victor Arni de Paz Sicam, Gerrit Ludolph van der Heijde, Michiel Herman Mensink
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Publication number: 20130317608Abstract: An intraocular lens for providing accommodative vision to a subject includes a frame disposed about an optical axis, a first optical element, a second optical element, and a connecting element operably coupling the frame to the optical elements. The frame comprises an anterior frame element and a posterior frame element. The connecting element is configured to convert a first displacement between the frame elements in a direction that is substantially parallel to the optical axis into a second displacement between the optical elements that is substantially perpendicular to the optical axis. The second displacement may be translational and/or rotation. In some embodiments, the optical elements are two varifocal lenses.Type: ApplicationFiled: July 29, 2013Publication date: November 28, 2013Inventors: Erik Ad Hermans, Gerrit Ludolph van der Heijde, Thomas Henricus Marie Terwee
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Patent number: 8496701Abstract: An intraocular lens for providing accommodative vision to a subject includes a frame disposed about an optical axis, a first optical element, a second optical element, and a connecting element operably coupling the frame to the optical elements. The frame comprises an anterior frame element and a posterior frame element. The connecting element is configured to convert a first displacement between the frame elements in a direction that is substantially parallel to the optical axis into a second displacement between the optical elements that is substantially perpendicular to the optical axis. The second displacement may be translational and/or rotation. In some embodiments, the optical elements are two varifocal lenses.Type: GrantFiled: May 18, 2012Date of Patent: July 30, 2013Assignee: AMO Groningen B.V.Inventors: Erik Ad Hermans, Gerrit Ludolph van der Heijde, Thomas Henricus Marie Terwee
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Publication number: 20120232650Abstract: An intraocular lens for providing accommodative vision to a subject includes a frame disposed about an optical axis, a first optical element, a second optical element, and a connecting element operably coupling the frame to the optical elements. The frame comprises an anterior frame element and a posterior frame element. The connecting element is configured to convert a first displacement between the frame elements in a direction that is substantially parallel to the optical axis into a second displacement between the optical elements that is substantially perpendicular to the optical axis. The second displacement may be translational and/or rotation. In some embodiments, the optical elements are two varifocal lenses.Type: ApplicationFiled: May 18, 2012Publication date: September 13, 2012Applicant: AMO GRONINGEN BVInventors: Erik Ad Hermans, Gerrit Ludolph van der Heijde, Thomas Henricus Marie Terwee
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Patent number: 8182531Abstract: An intraocular lens for providing accommodative vision to a subject includes a frame disposed about an optical axis, a first optical element, a second optical element, and a connecting element operably coupling the frame to the optical elements. The frame comprises an anterior frame element and a posterior frame element. The connecting element is configured to convert a first displacement between the frame elements in a direction that is substantially parallel to the optical axis into a second displacement between the optical elements that is substantially perpendicular to the optical axis. The second displacement may be translational and/or rotation. In some embodiments, the optical elements are two varifocal lenses.Type: GrantFiled: January 14, 2011Date of Patent: May 22, 2012Assignee: AMO Groningen B.V.Inventors: Erik Ad Hermans, Gerrit Ludolph van der Heijde, Thomas Henricus Marie Terwee
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Publication number: 20110112638Abstract: An intraocular lens for providing accommodative vision to a subject includes a frame disposed about an optical axis, a first optical element, a second optical element, and a connecting element operably coupling the frame to the optical elements. The frame comprises an anterior frame element and a posterior frame element. The connecting element is configured to convert a first displacement between the frame elements in a direction that is substantially parallel to the optical axis into a second displacement between the optical elements that is substantially perpendicular to the optical axis. The second displacement may be translational and/or rotation. In some embodiments, the optical elements are two varifocal lenses.Type: ApplicationFiled: January 14, 2011Publication date: May 12, 2011Applicant: AMO GRONINGEN BVInventors: Erik Ad Hermans, Gerrit Ludolph van der Heijde, Thomas Henricus Marie Terwee
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Publication number: 20110105943Abstract: A method of determining a corneal thickness and an apparatus for determining said is provided. The method comprises the following the steps:—illuminating a cornea by a plurality of stimulator point light sources, capturing an image of the cornea comprising reflected images of the stimulator point light sources, obtaining a model representing an anterior surface of the cornea,—constructing a second model representing a posterior surface of the cornea from the image by ray-tracing the reflected images of the stimulator point light sources towards the model representing the anterior surface of the cornea, determining the corneal thickness from the model representing the anterior surface and the second model representing the posterior surface.Type: ApplicationFiled: April 16, 2009Publication date: May 5, 2011Applicants: VERENIGING VU-WINDESHEIM, I-OPTICS B.V.Inventors: Victor Arni De Paz Sicam, Gerrit Ludolph Van Der Heijde, Michiel Herman Mensink
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Patent number: 7871437Abstract: An intraocular lens for providing accommodative vision to a subject includes a frame disposed about an optical axis, a first optical element, a second optical element, and a connecting element operably coupling the frame to the optical elements. The frame comprises an anterior frame element and a posterior frame element. The connecting element is configured to convert a first displacement between the frame elements in a direction that is substantially parallel to the optical axis into a second displacement between the optical elements that is substantially perpendicular to the optical axis. The second displacement may be translational and/or rotation. In some embodiments, the optical elements are two varifocal lenses.Type: GrantFiled: December 21, 2007Date of Patent: January 18, 2011Assignee: AMO Groningen B.V.Inventors: Erik Ad Hermans, Gerrit Ludolph van der Heijde, Thomas Henricus Marie Terwee
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Publication number: 20110007144Abstract: A Method of evaluating a correspondence between a target surface and a reconstructed surface representing the target surface is described. The reconstructed surface can be constructed by processing information obtained by illuminating the target surface with a pattern of light of a stimulator source, and capturing a reflected image of the pattern of light on an image target, the method further comprising the steps of—Determine a reference image point on the image target corresponding to a reference stimulator point on the stimulator source,—Calculating for the reference image point, using the reconstructed surface, a residual representing the correspondence between the target surface and the reconstructed surface.—Displaying the residual together with the reflected image.Type: ApplicationFiled: November 2, 2007Publication date: January 13, 2011Inventors: Victor Arni De Paz Sicam, Joris-Joost Snellenburg, Gerrit Ludolph van der Heijde
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Patent number: 7637608Abstract: Glasses, comprising a frame and a lens system for the correction of defective vision, which comprises at least one pair of lenses formed by a first lens and a second lens, which first and second lens, viewed in the path of vision, are disposed one behind the other and are mutually adjustable for realizing a desired degree of correction of vision, wherein the first lens is position-invariantly received in the frame, and the second lens can be moved longitudinally along the first lens.Type: GrantFiled: October 27, 2008Date of Patent: December 29, 2009Assignee: Stichting Right on SightInventors: Gerrit Ludolph Van Der Heijde, Willem Peter Louwerse
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Publication number: 20090122254Abstract: Glasses, comprising a frame and a lens system for the correction of defective vision, which comprises at least one pair of lenses formed by a first lens and a second lens, which first and second lens, viewed in the path of vision, are disposed one behind the other and are mutually adjustable for realising a desired degree of correction of vision, wherein the first lens is position-invariantly received in the frame, and the second lens can be moved longitudinally along the first lens.Type: ApplicationFiled: October 27, 2008Publication date: May 14, 2009Applicant: Vereniging voor Christelijk Hoger Onderwijs, Wetenshappelijk Onderzoek en PatientenzorgInventors: Gerrit Ludolph Van Der Heijde, Willem Peter Louwerse
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Publication number: 20090018652Abstract: An intraocular lens for providing accommodative vision to a subject includes a frame disposed about an optical axis, a first optical element, a second optical element, and a connecting element operably coupling the frame to the optical elements. The frame comprises an anterior frame element and a posterior frame element. The connecting element is configured to convert a first displacement between the frame elements in a direction that is substantially parallel to the optical axis into a second displacement between the optical elements that is substantially perpendicular to the optical axis. The second displacement may be translational and/or rotation. In some embodiments, the optical elements are two varifocal lenses.Type: ApplicationFiled: December 21, 2007Publication date: January 15, 2009Applicant: AMO GRONINGEN BVInventors: Erik Ad Hermans, Gerrit Ludolph van der Heijde, Thomas Henricus Marie Terwee
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Patent number: 7393099Abstract: Glasses for everyday use, comprising a frame into which is fitted a lens system for the correction of defective vision, which comprises at least one pair of lenses formed by a first lens and a second lens, which first and second lens, viewed in the path of vision, are disposed one behind the other and are mutually adjustable for realizing a desired degree of correction of vision, wherein the first lens is coupled with a first adjusting element and the second lens is coupled with a second adjusting element, and the first and the second adjusting elements in the assembled state form an integral component of an adjusting organ, and are designed for moving one along the other for the purpose of an adjustment of the lenses.Type: GrantFiled: July 30, 2007Date of Patent: July 1, 2008Assignee: Stichting Right on SightInventors: Daniel Koops, Erik Ad Hermans, Willem Berend Bloem, Gerrit Ludolph Van Der Heijde