Patents by Inventor Timo Kratzer
Timo Kratzer 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: 20150241715Abstract: The invention is directed to a method for making a spectacle lens for a non-presbyopic person wherein the spectacle lens is a ready-to-wear lens and has at least one zone having an optical effect to reduce vision stress. In the method, at least one of the following is provided: the contour of the ready-to-wear spectacle lens and one or several visual points whereat the person looks through the ready-to-wear spectacle lens for one or several visual tasks in the near range. This method step is followed by setting at least one of: a design reference point of the zone, the extent of the zone, the optical effect within the zone based on the provided contour, and the visual points. The spectacle lens is then made with this zone.Type: ApplicationFiled: April 27, 2015Publication date: August 27, 2015Inventors: Herbert Krug, Timo Kratzer
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Patent number: 9063348Abstract: The invention is directed to a method for making a spectacle lens for a non-presbyopic person wherein the spectacle lens is a ready-to-wear lens and has at least one zone having an optical effect to reduce vision stress. In the method, at least one of the following is provided: the contour of the ready-to-wear spectacle lens and one or several visual points whereat the person looks through the ready-to-wear spectacle lens for one or several visual tasks in the near range. This method step is followed by setting at least one of: a design reference point of the zone, the extent of the zone, the optical effect within the zone based on the provided contour, and the visual points. The spectacle lens is then made with this zone.Type: GrantFiled: November 27, 2012Date of Patent: June 23, 2015Assignee: Carl Zeiss Vision International GmbHInventors: Herbert Krug, Timo Kratzer
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Patent number: 9055890Abstract: In general, in some embodiments, the disclosure provides a method that includes making a subjective refraction of a person to determine information about the person's vision, making a wavefront measurement of one or both of the person's eyes to determine information about the optical properties of one or both of the person's eyes (e.g., aberrations), calculating a prescription for the person based on the information about the person's vision and the information about the optical properties of one or both of the person's eyes, and outputting the prescription.Type: GrantFiled: November 22, 2011Date of Patent: June 16, 2015Assignee: Carl Zeiss Vision GmbHInventors: Jesus-Miguel Cabeza-Guillen, Timo Kratzer
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Publication number: 20150153589Abstract: A method for manufacturing a spectacle lens includes the steps of providing an integral main lens. The integral main lens has a front surface and a back surface and is at least one selected from a group consisting of a spherical power lens, an astigmatic power lens, and a lens having a main curvature of the front surface in a first meridian and a main curvature of the back surface in the first meridian which are different so as to provide for a spherical power different from zero; and applying at least one additional lens element to at least a part of the front surface and/or at least a part of the back surface, wherein the at least one additional lens element includes at least one layer having a multitude of layer elements, in particular printed layer elements. Further, the invention is directed to a corresponding spectacle lens.Type: ApplicationFiled: December 1, 2014Publication date: June 4, 2015Inventors: Ralf Meschenmoser, Timo Kratzer, Paraic Begley, Stephen Brown
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Publication number: 20150134473Abstract: An apparatus is for ascertaining and outputting a type of spectacle lens suitable for a spectacle wearer with a visual characteristics providing device, for providing visual characteristics of the spectacle wearer, a needs providing device, for providing individual needs of the spectacle wearer, a spectacle lens type providing device, for providing a plurality of types of spectacle lenses having predetermined characteristics, a desired characteristics ascertaining device, for ascertaining desired characteristics of a type of spectacle lens using the provided visual characteristics and the provided individual needs of the spectacle wearer, an assigning device, for assigning at least one type of spectacle lens from among the plurality of types of spectacle lenses to the desired characteristics, on the basis of predetermined assignment rules, and a spectacle lens type outputting device, for outputting the at least one assigned type of spectacle lens.Type: ApplicationFiled: January 20, 2015Publication date: May 14, 2015Inventors: Konrad Saur, Paraic Begley, Ray Steven Spratt, Timo Kratzer
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Patent number: 8985767Abstract: A method for designing a progressive lens is disclosed. The method includes obtaining a wavefront measurement of an eye, determining an initial design for the progressive lens based on the wavefront measurement, determining information about how changes in one or more higher order aberrations of the eye affect a second order correction for the aberrations of the eye based on information derived from the wavefront measurement, modifying the initial design of the progressive lens to provide a final progressive lens design, and outputting the final lens design.Type: GrantFiled: December 20, 2012Date of Patent: March 24, 2015Assignees: Carl Zeiss Vision International GmbH, Carl Zeiss Vision Inc.Inventors: Ray Steven Spratt, Darryl Meister, Timo Kratzer
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Publication number: 20140354948Abstract: The invention relates to a method for determining the location of the ocular pivot point (ADL) in an eye (10) of a test person. In the method, the mean curvature (KH) of the cornea (14) of the eye (10) is determined. The mean phase error (PF) of the eye (10) is determined as is the eye length (LA) from the mean curvature (KH) and the mean phase error (PF). The location of the ocular pivot point (ADL) is determined from the eye length (LA).Type: ApplicationFiled: August 13, 2014Publication date: December 4, 2014Inventors: Timo Kratzer, Jesus-Miguel Cabeza-Guillen, Gerhard Kelch
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Patent number: 8840247Abstract: The invention relates to a method for determining the location of the ocular pivot point (ADL) in an eye (10) of a test person. In the method, the mean curvature (KH) of the cornea (14) of the eye (10) is determined. The mean phase error (PF) of the eye (10) is determined as is the eye length (LA) from the mean curvature (KH) and the mean phase error (PF). The location of the ocular pivot point (ADL) is determined from the eye length (LA).Type: GrantFiled: August 26, 2011Date of Patent: September 23, 2014Assignee: Carl Zeiss Vision GmbHInventors: Timo Kratzer, Jesús-Miguel Cabeza-Guillén, Gerhard Kelch
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Publication number: 20140218681Abstract: Methods for determining a prescription (Rx) for a person include providing aberrometric data characterizing wavefront errors of the person's eye, the aberrometric data being obtained using an wavefront sensor and comprising one or more coefficients characterizing the wavefront errors; determining a starting Rx for the person's eye based on the one or more coefficients and on predetermined information relating aberrometric data and subjective refraction data for a plurality of people's eyes; and reporting the starting Rx to an eye care professional.Type: ApplicationFiled: April 10, 2014Publication date: August 7, 2014Applicants: Carl Zeiss Vision Inc., Carl Zeiss Vision International GmbHInventors: Ray Steven Spratt, Timo Kratzer
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Patent number: 8777414Abstract: A method of determining an ophthalmic prescription (Rx) for a patient's eye, includes obtaining a wavefront measurement of the patient's eye; determining a first Rx for the patient's eye from the wavefront measurement, the first Rx corresponding to a maximum value of a merit function calculated from the wavefront measurement of the patient's eye for a first size of the pupil of the patient's eye; determining one or more additional Rx's of the patient's eye for one or more additional pupil sizes different from the first pupil size, wherein each additional Rx is determined for a corresponding size by calculating a value of the merit function for the previously-calculated Rx at the corresponding size and searching for an Rx at the corresponding size that provides a larger value of the merit function than the previously-calculated Rx at the corresponding size; determining a final Rx based on the first Rx and the additional Rx's; and outputting the final Rx.Type: GrantFiled: December 20, 2012Date of Patent: July 15, 2014Assignee: Carl Zeiss Vision Inc.Inventors: Ray Steven Spratt, Timo Kratzer, Jesús-Miguel Cabeza-Guillén
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Publication number: 20140078464Abstract: A method of determining an ophthalmic prescription (Rx) for a patient's eye, includes obtaining a wavefront measurement of the patient's eye; determining a first Rx for the patient's eye from the wavefront measurement, the first Rx corresponding to a maximum value of a merit function calculated from the wavefront measurement of the patient's eye for a first size of the pupil of the patient's eye; determining one or more additional Rx's of the patient's eye for one or more additional pupil sizes different from the first pupil size, wherein each additional Rx is determined for a corresponding size by calculating a value of the merit function for the previously-calculated Rx at the corresponding size and searching for an Rx at the corresponding size that provides a larger value of the merit function than the previously-calculated Rx at the corresponding size; determining a final Rx based on the first Rx and the additional Rx's; and outputting the final Rx.Type: ApplicationFiled: December 20, 2012Publication date: March 20, 2014Applicants: CARL ZEISS VISION INC.Inventors: Ray Steven Spratt, Timo Kratzer, Jesús-Miguel Cabeza-Guillén
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Patent number: 8434025Abstract: A method of designing and/or selecting a progressive addition lens design for a wearer is disclosed. In an embodiment, the method includes displaying a graphical representation of an initial progressive addition lens design including design parameters having design values. A user interface is provided including, for each of one or more of the design parameters, a control that is adjustable over a range of levels, each level in the range being associated with a corresponding value of the respective design parameter. A control is adjusted to select a level and the selection is processed so as to substantially simultaneously update the displayed graphical representation in accordance with the selected level to provide a modified progressive lens design. A system for designing and/or selecting a progressive addition lens design for a wearer is also disclosed.Type: GrantFiled: November 15, 2006Date of Patent: April 30, 2013Assignee: Carl Zeiss Vision Australia Holdings LimitedInventors: Scott Warren Fisher, Saulius Raymond Varnas, Philipp Ellinger, Michael Alan Morris, Ray Steven Spratt, Timo Kratzer
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Patent number: 8366269Abstract: The invention relates to a method of making a spectacle lens. The method of the invention includes the method steps of providing a prescription for the spectacle lens (200), providing a material for manufacturing the spectacle lens (300), providing at least two design wavelengths (400), providing the particular refractive indices of the material for the at least two design wavelengths (500), computing each an optical predesign for the spectacle lens having the respective determined refractive index of the material for the at least two design wavelengths in consideration of the prescription (600, 700), and computing the optical design of the spectacle lens from the optical predesign for the spectacle lens for the refractive index (800) determined from the at least two design wavelengths.Type: GrantFiled: April 29, 2011Date of Patent: February 5, 2013Assignee: Carl Zeiss Vision International GmbHInventors: Timo Kratzer, Herbert Krug
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Patent number: 8297753Abstract: A method for determining correction characteristics for a vision aid for at least one eye of a person wherein: a vision impression of the person is determined in a first usage condition after which a vision impression of the person is determined in a second usage condition after which the wavefront of the person is optimized by determining the correction characteristics for the vision aid until the vision impression of the person in the second usage condition at least approximately matches the vision impression of the person in the first usage condition.Type: GrantFiled: August 1, 2007Date of Patent: October 30, 2012Assignee: Carl Zeiss Vision GmbHInventors: Gerhard Kelch, Timo Kratzer
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Patent number: 8205987Abstract: The current invention is directed to a method for designing an ophthalmic lens element, the method comprising the steps of determining a wavefront aberration of an eye in a reference plane, wherein the wavefront aberration of the eye can be described by a first series of polynomials of ascending order up to a first specific order and corresponding first coefficients; determining a first vision correction of a second specific order; determining at least one specific point over an aperture of the adapted ophthalmic lens element; determining a high-order wavefront aberration in the reference plane for each specified point of the adapted ophthalmic lens element, wherein the high-order wavefront aberration can be described by a third series of polynomials of ascending order above the second specific order up to and including the first specific order and corresponding third coefficients; and determining a second vision correction of the second specific order.Type: GrantFiled: April 20, 2010Date of Patent: June 26, 2012Assignees: Carl Zeiss Vision Inc., Carl Zeiss Vision GmbHInventors: Darryl Meister, Timo Kratzer, Jesús Miguel Cabeza Guillén, Ray Steven Spratt, Markus Welscher, Gerhard Kelch, Helmut Wietschorke
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Publication number: 20120069297Abstract: In general, in some embodiments, the disclosure provides a method that includes making a subjective refraction of a person to determine information about the person's vision, making a wavefront measurement of one or both of the person's eyes to determine information about the optical properties of one or both of the person's eyes (e.g., aberrations), calculating a prescription for the person based on the information about the person's vision and the information about the optical properties of one or both of the person's eyes, and outputting the prescription.Type: ApplicationFiled: November 22, 2011Publication date: March 22, 2012Applicant: CARL ZEISS VISION GMBHInventors: Jesus Miguel Guillen Cabeza, Timo Kratzer
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Publication number: 20120033179Abstract: The invention relates to a method for determining the location of the ocular pivot point (ADL) in an eye (10) of a test person. In the method, the mean curvature (KH) of the cornea (14) of the eye (10) is determined. The mean phase error (PF) of the eye (10) is determined as is the eye length (LA) from the mean curvature (KH) and the mean phase error (PF). The location of the ocular pivot point (ADL) is determined from the eye length (LA).Type: ApplicationFiled: August 26, 2011Publication date: February 9, 2012Inventors: Timo Kratzer, Jesús-Miguel Cabeza-Guillén, Gerhard Kelch
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Patent number: 8079707Abstract: In general, in some embodiments, the disclosure provides a method that includes making a subjective refraction of a person to determine information about the person's vision, making a wavefront measurement of one or both of the person's eyes to determine information about the optical properties of one or both of the person's eyes (e.g., aberrations), calculating a prescription for the person based on the information about the person's vision and the information about the optical properties of one or both of the person's eyes, and outputting the prescription.Type: GrantFiled: August 7, 2007Date of Patent: December 20, 2011Assignee: Carl Zeiss Vision GmbHInventors: Jesus Miguel Guillen Cabeza, Timo Kratzer
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Publication number: 20110267576Abstract: The invention relates to a method of making a spectacle lens. The method of the invention includes the method steps of providing a prescription for the spectacle lens (200), providing a material for manufacturing the spectacle lens (300), providing at least two design wavelengths (400), providing the particular refractive indices of the material for the at least two design wavelengths (500), computing each an optical predesign for the spectacle lens having the respective determined refractive index of the material for the at least two design wavelengths in consideration of the prescription (600, 700), and computing the optical design of the spectacle lens from the optical predesign for the spectacle lens for the refractive index (800) determined from the at least two design wavelengths.Type: ApplicationFiled: April 29, 2011Publication date: November 3, 2011Inventors: Timo Kratzer, Herbert Krug
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Publication number: 20110255052Abstract: The current invention is directed to a method for designing an ophthalmic lens element, the method comprising the steps of determining a wavefront aberration of an eye in a reference plane, wherein the wavefront aberration of the eye can be described by a first series of polynomials of ascending order up to a first specific order and corresponding first coefficients; and determining a first vision correction of a second specific order to obtain an adapted ophthalmic lens element; determining at least one specified point over an aperture of the adapted ophthalmic lens element; determining a high-order wavefront aberration in the reference plane for each specified point of the adapted ophthalmic lens element, wherein the high-order wavefront aberration can be described by a third series of polynomials of ascending order above the second specific order up to and including the first specific order and corresponding third coefficients; determining a second vision correction of the second specific order for each ofType: ApplicationFiled: April 20, 2010Publication date: October 20, 2011Inventors: Darryl MEISTER, Timo Kratzer, Jesús Miguel Cabeza Guillén, Ray Steven Spratt, Markus Welscher, Gerhard Kelch, Helmut Wietschorke