Patents by Inventor Gerhard Kelch

Gerhard Kelch 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).

  • Patent number: 11926557
    Abstract: A method for manufacturing a spectacle lens having a lens substrate and at least one coating is disclosed. The method includes providing a lens substrate having an uncoated or precoated front surface and an uncoated or precoated back surface, applying at least one coating to at least one of the surfaces of the lens substrate, the surface of the at least one coating being modifiable when contacted with at least one medium able to modify the surface of the at least one coating, contacting the surface of the at least one coating, partially or completely, with the at least one medium, considering the individual peripheral refraction, obtaining the spectacle lens having the lens substrate and the at least one coating, the surface of the at least one coating being modified according to the individual peripheral refraction.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: March 12, 2024
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Michel-René Christmann, Andreu Llobera Adan, Gerhard Kelch
  • Patent number: 11892712
    Abstract: A progressive spectacle lens has a front face and a rear face and a uniform substrate with a locally varying refractive index. The front face and/or the rear face of the substrate is formed as a free-form surface and carries only functional coatings, if any. The refractive index varies (a) only in a first spatial dimension and in a second spatial dimension and is constant in a third spatial dimension, a distribution of the refractive being neither point-symmetrical nor axis symmetrical, or (b) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index being neither point-symmetrical nor axis symmetrical, or (c) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index not being point-symmetrical or axis symmetrical at all.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: February 6, 2024
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Patent number: 11782293
    Abstract: A progressive addition lens contains a plurality of microlenses for providing simultaneous myopic defocus. The microlenses are superimposed on a power variation surface of the lens, which includes a designated distance portion in the upper section of the lens adapted for distance vision and a fitting cross; a designated near portion located in the lower section of the lens, the near portion including a near reference point having a near dioptric power adapted for near vision; and a designated intermediate corridor extending between the designated distance portion and near portions. Microlenses are excluded from all areas of the surface located below a notional line extending from nasal to temporal limits of the lens at a vertical coordinate above the near reference point where the vertical coordinate lies at a distance above the near reference point with the distance being in a range between 1.5 mm and 3 mm.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: October 10, 2023
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Saulius Raymond Varnas, Ray Steven Spratt, Timo Kratzer, Gerhard Kelch, Siegfried Wahl
  • Patent number: 11747654
    Abstract: A computer-implemented method for generating data to produce a spectacle lens adapted to a spectacle frame is disclosed. The method includes: (i) providing, on a storage medium, a first data set containing a centering value and a three-dimensional model of the spectacle frame; (ii) creating, using the first data set, a second data set containing a geometric value of a surface of the spectacle lens; (iii) creating, in order to produce the spectacle lens from a spectacle lens blank and to grind in and/or fit the at least one spectacle lens into the spectacle frame using the first and second data sets, a third data set stored on the storage medium, wherein the data values of each data set have a spatial relationship with respect to each other such that the data values of each data set are consistently specified in relation to a particular coordinate system.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: September 5, 2023
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Ralf Meschenmoser, Friedrich Pauker, Gerhard Kelch
  • Patent number: 11740488
    Abstract: A progressive spectacle lens has a front face and a rear face and a uniform substrate with a locally varying refractive index. The front face and/or the rear face of the substrate is formed as a free-form surface and carries only functional coatings, if any. The refractive index varies (a) only in a first spatial dimension and in a second spatial dimension and is constant in a third spatial dimension, a distribution of the refractive being neither point-symmetrical nor axis symmetrical, or (b) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index being neither point-symmetrical nor axis symmetrical, or (c) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index not being point-symmetrical or axis symmetrical at all.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: August 29, 2023
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Publication number: 20230265010
    Abstract: A method for manufacturing a spectacle lens having a lens substrate and at least one coating is disclosed. The method includes providing a lens substrate having an uncoated or precoated front surface and an uncoated or precoated back surface, applying at least one coating to at least one of the surfaces of the lens substrate, the surface of the at least one coating being modifiable when contacted with at least one medium able to modify the surface of the at least one coating, contacting the surface of the at least one coating, partially or completely, with the at least one medium, considering the individual peripheral refraction, obtaining the spectacle lens having the lens substrate and the at least one coating, the surface of the at least one coating being modified according to the individual peripheral refraction.
    Type: Application
    Filed: April 21, 2023
    Publication date: August 24, 2023
    Inventors: Michel-René Christmann, Andreu Llobera Adan, Gerhard Kelch
  • Publication number: 20230161177
    Abstract: A progressive addition lens contains a plurality of microlenses for providing simultaneous myopic defocus. The microlenses are superimposed on a power variation surface of the lens, which includes a designated distance portion in the upper section of the lens adapted for distance vision and a fitting cross; a designated near portion located in the lower section of the lens, the near portion including a near reference point having a near dioptric power adapted for near vision; and a designated intermediate corridor extending between the designated distance portion and near portions. Microlenses are excluded from all areas of the surface located below a notional line extending from nasal to temporal limits of the lens at a vertical coordinate above the near reference point where the vertical coordinate lies at a distance above the near reference point with the distance being in a range between 1.5 mm and 3 mm.
    Type: Application
    Filed: January 25, 2023
    Publication date: May 25, 2023
    Inventors: Saulius Raymond Varnas, Ray Steven Spratt, Timo Kratzer, Gerhard Kelch, Siegfried Wahl
  • Publication number: 20230152607
    Abstract: A computer-implemented method for generating data to produce a spectacle lens adapted to a spectacle frame is disclosed. The method includes: (i) providing, on a storage medium, a first data set containing a centering value and a three-dimensional model of the spectacle frame; (ii) creating, using the first data set, a second data set containing a geometric value of a surface of the spectacle lens; (iii) creating, in order to produce the spectacle lens from a spectacle lens blank and to grind in and/or fit the at least one spectacle lens into the spectacle frame using the first and second data sets, a third data set stored on the storage medium, wherein the data values of each data set have a spatial relationship with respect to each other such that the data values of each data set are consistently specified in relation to a particular coordinate system.
    Type: Application
    Filed: January 18, 2023
    Publication date: May 18, 2023
    Inventors: Ralf Meschenmoser, Friedrich Pauker, Gerhard Kelch
  • Patent number: 11614640
    Abstract: A spectacle lens has, starting from the object-sided front surface of the spectacle lens to the opposite rear-side of the spectacle lens, at least a) one component A including at least one functional layer FA and/or an ultrathin glass, b) one component B including at least one polymer material and, c) one component C, including at least one functional layer F and/or an ultrathin glass. A method, in particular a 3D printing method, for producing the spectacle lens is also disclosed.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: March 28, 2023
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Timo Mappes, Gerhard Kelch, Thomas Glöge
  • Patent number: 11372264
    Abstract: A progressive spectacle lens has a front surface, a rear surface, and a spatially varying refractive index. The progressive spectacle lens can have: (a) a refractive index that changes only in a first and second spatial dimension and is constant in a third spatial dimension, and the distribution of the refractive index in the first spatial dimension and the second spatial dimension is neither punctually nor axially symmetric; (b) a refractive index that changes in a first, a second, and third spatial dimension, and the distribution of the refractive index in the first spatial dimension and the second spatial dimension is neither punctually nor axially symmetric on all planes perpendicular to the third spatial dimension; or (c) a refractive index that changes in a first, second, and third spatial dimension, and the distribution of the refractive index is not punctually or axially symmetric at all.
    Type: Grant
    Filed: July 19, 2020
    Date of Patent: June 28, 2022
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Publication number: 20220091437
    Abstract: A progressive spectacle lens has a front face and a rear face and a uniform substrate with a locally varying refractive index. The front face and/or the rear face of the substrate is formed as a free-form surface and carries only functional coatings, if any. The refractive index varies (a) only in a first spatial dimension and in a second spatial dimension and is constant in a third spatial dimension, a distribution of the refractive being neither point-symmetrical nor axis symmetrical, or (b) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index being neither point-symmetrical nor axis symmetrical, or (c) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index not being point-symmetrical or axis symmetrical at all.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 24, 2022
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Patent number: 11086142
    Abstract: A progressive spectacle lens includes a substrate which has a front face and a rear face and is made from a material with a regionally varying refractive index, wherein the front face and/or the rear face has/have a free-form surface geometry. The progressive spectacle lens complies with the following optical requirements: (1) a prescribed dioptric power in the distance reference point within the permissible limit deviations in accordance with EN ISO 8980-2:2004 and a prescribed dioptric power in the near reference point within the permissible limit deviations in accordance with EN ISO 8980-2:2004, (2) a monotonically steady increase in the dioptric power between the distance reference point and near reference point along a principal line of vision, and (3) a progression channel. The progressive spectacle lens has a free-form surface geometry of the front face and/or rear face.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: August 10, 2021
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Publication number: 20210199991
    Abstract: A progressive spectacle lens has a front face and a rear face and a uniform substrate with a locally varying refractive index. The front face and/or the rear face of the substrate is formed as a free-form surface and carries only functional coatings, if any. The refractive index varies (a) only in a first spatial dimension and in a second spatial dimension and is constant in a third spatial dimension, a distribution of the refractive being neither point-symmetrical nor axis symmetrical, or (b) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index being neither point-symmetrical nor axis symmetrical, or (c) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index not being point-symmetrical or axis symmetrical at all.
    Type: Application
    Filed: January 20, 2021
    Publication date: July 1, 2021
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Publication number: 20210141244
    Abstract: A progressive spectacle lens includes a substrate which has a front face and a rear face and is made from a material with a regionally varying refractive index, wherein the front face and/or the rear face has/have a free-form surface geometry. The progressive spectacle lens complies with the following optical requirements: (1) a prescribed dioptric power in the distance reference point within the permissible limit deviations in accordance with EN ISO 8980-2:2004 and a prescribed dioptric power in the near reference point within the permissible limit deviations in accordance with EN ISO 8980-2:2004, (2) a monotonically steady increase in the dioptric power between the distance reference point and near reference point along a principal line of vision, and (3) a progression channel. The progressive spectacle lens has a free-form surface geometry of the front face and/or rear face.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Patent number: 10989932
    Abstract: A product includes a progressive power spectacle lens or a representation, stored on a data storage medium, of the progressive power spectacle lens. The progressive power spectacle lens has a front surface and a back surface and a spatially varying refractive index, wherein the front surface and/or the back surface is embodied as a progressive surface. The front surface is formed as a free-form surface in such a way that the maximum of the absolute value of the mean curvature of the front surface lies in the intermediate corridor and/or the back surface is formed as a free-form surface in such a way that the minimum of the absolute value of the mean curvature of the back surface lies in the intermediate corridor. Further, a computer-implemented method for planning a progressive power spectacle lens with a spatially varying refractive index and a progressive surface is disclosed.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: April 27, 2021
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Patent number: 10969607
    Abstract: The current disclosure is directed to a method for determining an improved design for a progressive spectacle lens. Further, there are provided a method for manufacturing a progressive spectacle lens, a system for determining an improved design for a progressive spectacle lens, a non-transitory computer program and a progressive spectacle lens.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: April 6, 2021
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Ray Steven Spratt, Gerhard Kelch
  • Patent number: 10838231
    Abstract: A product includes a progressive power spectacle lens or a representation, stored on a data storage medium, of the progressive power spectacle lens. The progressive power spectacle lens has a front surface and a back surface and a spatially varying refractive index, wherein the front surface and/or the back surface is embodied as a progressive surface. The front surface is formed as a free-form surface in such a way that the maximum of the absolute value of the mean curvature of the front surface lies in the intermediate corridor and/or the back surface is formed as a free-form surface in such a way that the minimum of the absolute value of the mean curvature of the back surface lies in the intermediate corridor. Further, a computer-implemented method for planning a progressive power spectacle lens with a spatially varying refractive index and a progressive surface is disclosed.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: November 17, 2020
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Publication number: 20200348538
    Abstract: A progressive spectacle lens has a front surface, a rear surface, and a spatially varying refractive index. The progressive spectacle lens can have: (a) a refractive index that changes only in a first and second spatial dimension and is constant in a third spatial dimension, and the distribution of the refractive index in the first spatial dimension and the second spatial dimension is neither punctually nor axially symmetric; (b) a refractive index that changes in a first, a second, and third spatial dimension, and the distribution of the refractive index in the first spatial dimension and the second spatial dimension is neither punctually nor axially symmetric on all planes perpendicular to the third spatial dimension; or (c) a refractive index that changes in a first, second, and third spatial dimension, and the distribution of the refractive index is not punctually or axially symmetric at all.
    Type: Application
    Filed: July 19, 2020
    Publication date: November 5, 2020
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke
  • Patent number: 10754157
    Abstract: A method for producing an optical element includes a) providing a first shell which is transparent in the predetermined wavelength range, b) applying a coating which is optically effective for the predetermined wavelength range onto the structured portion, c) providing a second shell which is transparent in the predetermined wavelength range, which shell has an integral embodiment and a smooth lower side which has a complementary form to the form of the upper side, d) applying an adhesive layer which is transparent in the predetermined wavelength range onto the upper side of the first shell and/or the lower side of the second shell, and e) connecting the upper side of the first shell with the lower side of the second shell by means of the adhesive layer such that a two-shell optical element is produced, in which the optically effective structure is buried.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: August 25, 2020
    Assignee: tooz technologies GmbH
    Inventors: Jens Hofmann, Gerhard Kelch, Wolf Krause, Joerg Puetz, Georg Michels
  • Publication number: 20200201071
    Abstract: A product includes a progressive power spectacle lens or a representation, stored on a data storage medium, of the progressive power spectacle lens. The progressive power spectacle lens has a front surface and a back surface and a spatially varying refractive index, wherein the front surface and/or the back surface is embodied as a progressive surface. The front surface is formed as a free-form surface in such a way that the maximum of the absolute value of the mean curvature of the front surface lies in the intermediate corridor and/or the back surface is formed as a free-form surface in such a way that the minimum of the absolute value of the mean curvature of the back surface lies in the intermediate corridor. Further, a computer-implemented method for planning a progressive power spectacle lens with a spatially varying refractive index and a progressive surface is disclosed.
    Type: Application
    Filed: November 22, 2019
    Publication date: June 25, 2020
    Inventors: Gerhard Kelch, Christoph Menke, Helmut Wietschorke