Patents by Inventor John Biteau

John Biteau 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).

  • Publication number: 20210072425
    Abstract: The present invention proposes a polymer composition of manufacturing ophthalmic lens by polymerization of polymerizable composition wherein the shrinkage phenomenon is minimized. The polymerizable composition comprised two different categories of monomers which are able during crosslinking to control and limit said chemical shrinkage. The present invention comprises also ophthalmic lens obtained from said polymer composition using a manufacturing process of casting or additive manufacturing.
    Type: Application
    Filed: October 8, 2020
    Publication date: March 11, 2021
    Applicant: ESSILOR INTERNATIONAL
    Inventors: Robert VALERI, John BITEAU
  • Publication number: 20210054264
    Abstract: An ophthalmic lens comprising a transparent polymer matrix and core shell nanoparticles which are dispersed in the transparent polymer matrix, wherein the core of core shell nanoparticles results from polymerization of a composition comprising nanoparticle core precursors and at least one photochromic compound, and the shell of core shell nanoparticles comprises a mineral compound.
    Type: Application
    Filed: December 19, 2018
    Publication date: February 25, 2021
    Inventors: John BITEAU, Ronald BERZON, Pierre FROMENTIN
  • Patent number: 9969135
    Abstract: A method using additive manufacturing technologies and processes to manufacture a three-dimensional ophthalmic lens with a high management level of the homogeneity during the construction of the ophthalmic lens, through a control of two technical characteristics of voxel: the ability to modify their viscosity, and the ability to inter-diffuse together to provide a final homogeneous element. These two technical characteristics are managed by the choice of component(s) used to manufacture each voxel and by the kind of physical and/or chemical treatment apply to each of them.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: May 15, 2018
    Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Robert A. Valeri, Steven Weber, John Biteau
  • Publication number: 20180120592
    Abstract: Ophthalmic lens for improved colour perception comprising a first organic optical filter having a reflection band with a reflection peak comprised in the range [400 nm-460 nm], and a second organic optical filter F2, different from F1, having a reflection band with a reflection peak comprised in the range [530 nm-650 nm].
    Type: Application
    Filed: June 28, 2016
    Publication date: May 3, 2018
    Inventors: Xiaohong ZHANG, Olivier POPHILLAT, John BITEAU, Christelle MARCK
  • Publication number: 20180052267
    Abstract: The present invention relates to optical articles coupled to polarized laminate films. Optic properties, production methods, and compositions of component film layers were examined. Film layer criteria were selected that results in laminate films with particular optic properties. Lamination of optical elements with the inventive laminate films results in improved transmission and clarity through the optical elements.
    Type: Application
    Filed: March 25, 2015
    Publication date: February 22, 2018
    Inventors: Neil ROCHE, John BITEAU, Timothy HEROD, Stefan SETZ
  • Publication number: 20170031059
    Abstract: The present invention proposes a polymer composition of manufacturing ophthalmic lens by polymerization of polymerizable composition wherein the shrinkage phenomenon is minimized. The polymerizable composition comprised two different categories of monomers which are able during crosslinking to control and limit said chemical shrinkage. The present invention comprises also ophthalmic lens obtained from said polymer composition using a manufacturing process of casting or additive manufacturing.
    Type: Application
    Filed: December 20, 2013
    Publication date: February 2, 2017
    Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Robert VALERI, John BITEAU
  • Publication number: 20160320621
    Abstract: The invention provides a head-mounted display (1) comprising: —an optical module (2) containing an image source (21); —an imager (3) for guiding light emitted by the image source (21) to a wearer's eye (E) in operation; and —a light filter for filtering a portion of light emitted by the image source (21). The invention also provides an ophthalmic lens (4) intended to be mounted onto a head-mounted display (1) comprising an image source (21), wherein said ophthalmic lens (4) comprises a light filter intended to filter light emitted by the image source (21) of the head-mounted display (1) in operation.
    Type: Application
    Filed: December 22, 2014
    Publication date: November 3, 2016
    Inventors: John Biteau, Xiaohong Zhang, Haipeng Zheng, Coralie Barrau, Benoit Callier
  • Publication number: 20160167323
    Abstract: A method using additive manufacturing technologies and processes to manufacture a three-dimensional ophthalmic lens with a high management level of the homogeneity during the construction of the ophthalmic lens, through a control of two technical characteristics of voxel: the ability to modify their viscosity, and the ability to inter-diffuse together to provide a final homogeneous element. These two technical characteristics are managed by the choice of component(s) used to manufacture each voxel and by the kind of physical and/or chemical treatment apply to each of them.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 16, 2016
    Inventors: Robert A. VALERI, Steven WEBER, John BITEAU
  • Patent number: 9103969
    Abstract: The present invention is dedicated to a process for improving the adhesion properties between a first coating obtained from a curable composition and a second coating, through the incorporation of a cleavable surfactant in said curable composition and subsequent cleavage thereof. Said process comprises: depositing onto the substrate of an optical article a first layer of a first curable composition comprising at least one cleavable surfactant, curing at least partially said first curable composition, thereby forming a first coating, forming a second coating onto said first coating, wherein, after said first curable composition has been deposited onto the substrate, and before deposition of the second coating, said optical article is subjected to a treatment step resulting in a cleavage of at least a portion of the cleavable surfactant. Curable compositions containing cleavable surfactants and optical articles having deposited thereon stacks of coatings formed by the above process are also described.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: August 11, 2015
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: John Biteau, Herbert Mosse
  • Patent number: 8562772
    Abstract: This invention relates to an improvement for applying a layered structure onto a convex surface of a lens. After thermoforming the layered structure, a curvature direction of the layered structure is inverted. The structure is then applied on the lens surface by continuously pushing the structure against the lens surface, starting from a contact point between a convex surface of the structure and the convex surface of the lens. The curvature direction of the layered structure is then inverted again, so that it recovers the curvature direction that resulted from thermoforming. Stresses within the layered structure are then reduced, and the structure can be assembled with the lens without defects.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: October 22, 2013
    Assignee: Essilor International (compagnie Generale d'optique)
    Inventor: John Biteau
  • Publication number: 20130108858
    Abstract: The present invention relates to a method for making a substrate coated with a mesoporous photochromic film, comprising: a) preparing a precursor sol of a mesoporous film comprising an inorganic precursor agent, at least one organic solvent, water, at least one pore-forming agent and one hydrophobic precursor agent bearing at least one hydrophobic group; b) depositing a film of the precursor sol onto a main surface of a substrate; c) removing the pore-forming agent from the film resulting from the previous step at a temperature ?150° C.; d) impregnating the mesoporous film resulting from step c) with a solution comprising at least one photochromic agent. In an alternative embodiment, the photochromic agent is directly introduced into the precursor sol. In an alternative embodiment of the previous alternative embodiment, the precursor sol does not comprise any hydrophobic precursor agent but the photochromic film is made hydrophobic by a treatment subsequent to its preparation.
    Type: Application
    Filed: January 31, 2007
    Publication date: May 2, 2013
    Applicant: Essilor International (Compagnie Generate d Optique
    Inventors: John Biteau, Jean-Pierre Boilot, Thierry Gacoin, Muriel Matheron, Lorraine Raboin
  • Publication number: 20130022739
    Abstract: A method of dip-coating a lens includes the steps of: immersing the lens (10) in a coating solution bath (2) having a horizontal coating solution surface (4), and withdrawing the lens (10) from the bath (2) through the solution surface (4). The step of withdrawing is performed with a movement of the lens such that the orientation of the lens (10) varies continuously, from a position in which the optical axis (A) of the lens (10) is inclined upwards and towards the concave surface (12) of the lens (10) when the lens (10) starts emerging from the bath (2) to a position in which the optical axis (A) of the lens (10) is inclined upwards and towards the convex surface (11) of the lens (10) when the lens (10) finishes emerging from the bath (2).
    Type: Application
    Filed: April 2, 2010
    Publication date: January 24, 2013
    Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D' OPTIQUE)
    Inventors: John Biteau, Christy Ford, Arnaud Glacet
  • Publication number: 20120164458
    Abstract: The present invention is dedicated to a process for improving the adhesion properties between a first coating obtained from a curable composition and a second coating, through the incorporation of a cleavable surfactant in said curable composition and subsequent cleavage thereof. Said process comprises: depositing onto the substrate of an optical article a first layer of a first curable composition comprising at least one cleavable surfactant, curing at least partially said first curable composition, thereby forming a first coating, forming a second coating onto said first coating, wherein, after said first curable composition has been deposited onto the substrate, and before deposition of the second coating, said optical article is subjected to a treatment step resulting in a cleavage of at least a portion of the cleavable surfactant. Curable compositions containing cleavable surfactants and optical articles having deposited thereon stacks of coatings formed by the above process are also described.
    Type: Application
    Filed: June 11, 2010
    Publication date: June 28, 2012
    Inventors: John Biteau, Herbert Mosse
  • Patent number: 8182866
    Abstract: The invention relates to a method of producing a substrate which is coated with a mesoporous layer and to the use thereof in ophthalmic optics. The inventive method comprises the following steps comprising: preparing a precursor sol containing (i) a precursor agent that is selected from compounds having formula M(X)4 (I), in which X is a hydrolysable group and M represents silicon or a tetravalent metal and mixtures thereof, (ii) at least one organic solvent, (iii) at least one pore-forming agent and (iv) water; depositing a film of the precursor sol on a main surface of the substrate; optionally consolidating the mesoporous structure of the deposited film; eliminating the pore-forming agent; and recovering the substrate coated with the mesoporous layer. The method is characterized in that: (i) the pore-forming agent is eliminated at a temperature of less than or equal to 150° C.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: May 22, 2012
    Assignee: Essilor International Compagnie Generale d'Optique
    Inventors: Muriel Matheron, John Biteau, Jean-Paul Cano, Jean-Pierre Boilot, Thierry Gacoin
  • Patent number: 8142896
    Abstract: The invention relates to an optical article, for example, an ophthalmic lens, comprising at least one multilayer anti-reflective coating on a transparent substrate made from organic or mineral glass. Said coating comprises successively and starting at the substrate, a layer of material with high refractive index (HI), made from a hybrid organic/inorganic matrix within which are dispersed particles of mineral oxide or chalcogenide with a diameter of 2 to 50 nm and a layer of material with low refractive index (BI), obtained by hardening of a composition comprising at least one silane precursor (I) with 4 hydrolysable groups and at least one fluorosilane precursor (II), said second composition comprising at least 10% in mass of fluorine in a theoretical dry extract and with a molar ratio I/I+II greater than 80%.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 27, 2012
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: John Biteau, Myriam Fanayar, Nathalie Massart, Dominique Rychel
  • Publication number: 20120013979
    Abstract: This invention relates to an improvement for applying a layered structure onto a convex surface of a lens. After thermoforming the layered structure, a curvature direction of the layered structure is inverted. The structure is then applied on the lens surface by continuously pushing the structure against the lens surface, starting from a contact point between a convex surface of the structure and the convex surface of the lens. The curvature direction of the layered structure is then inverted again, so that it recovers the curvature direction that resulted from thermoforming. Stresses within the layered structure are then reduced, and the structure can be assembled with the lens without defects.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 19, 2012
    Applicant: Essilor International (compagnie Generale D'optique)
    Inventor: John Biteau
  • Patent number: 8062542
    Abstract: The light-polarizing solid coating composition which comprises (i) particles of at least one magnetic material suspended in a solvent, is characterized in that it comprises (ii) at least one dichroic dye compound. Application to ophthalmic optics.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: November 22, 2011
    Assignee: Essilor International Compagnie Generale d'Optique
    Inventors: John Biteau, Myriam Fanayar
  • Patent number: 8063237
    Abstract: A process for combining a polythiol reactant and an alkenyl silane reactant to form a polysulfide polysilane. The reactants are combined in a thiol-ene addition process driven by UV radiation. The polysulfide polysilane is then hydrolyzed and may be combined with other hydrolyzed compounds. For coatings, the polysulfide polysilane is hydrolyzed and may optionally be combined with nanoparticles. For bulk materials, the polysulfide polysilane is hydrolyzed, concentrated, and heated to form a high refractive index material which can be used to form optical articles such as lenses.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: November 22, 2011
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: John Biteau, Herbert Mosse
  • Patent number: 8002925
    Abstract: The invention relates to an improvement for applying a layered structure (1) onto a convex surface of a lens (10). After thermoforming the layered structure, a curvature direction of the layered structure is inverted. The structure is then applied on the lens surface by continuously pushing the structure (1) against the lens surface, starting from a contact point between a convex surface of the structure and the convex surface of the lens. The curvature direction of the layered structure is then inverted again, so that it recovers the curvature direction that resulted from thermoforming. Stresses within the layered structure are then reduced, and the structure can be assembled with the lens without defects.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: August 23, 2011
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: John Biteau, Joseph Boryslawski
  • Publication number: 20110077341
    Abstract: A process for combining a polythiol reactant and an alkenyl silane reactant to form a polysulfide polysilane. The reactants are combined in a thiol-ene addition process driven by UV radiation. The polysulfide polysilane is then hydrolyzed and may be combined with other hydrolyzed compounds. For coatings, the polysulfide polysilane is hydrolyzed and may optionally be combined with nanoparticles. For bulk materials, the polysulfide polysilane is hydrolyzed, concentrated, and heated to form a high refractive index material which can be used to form optical articles such as lenses.
    Type: Application
    Filed: December 1, 2010
    Publication date: March 31, 2011
    Inventors: John Biteau, Herbert Mosse