Patents by Inventor Herve Floch

Herve Floch 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).

  • Inorganic polymer material with tantalic acid anhydride base, in particular with high refractive index, mechanically abrasionproof, method of manufacture, optical materials comprising such material
    Patent number: 6387517
    Abstract: The invention relates to an inorganic polymer material based on tantalum oxide, notably with a high refractive index and mechanically resistant to abrasion, its method of manufacture, in particular making use of precursors based on chlorinated derivatives of tantalum, and optical materials such as antiglare materials and reflecting materials manufactured from this material.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: May 14, 2002
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Philippe Belleville, Hervé Floch, Philippe Prene
  • Composite material with a high refractive index, process for producing said composite material and optically active material incorporating said composite material
    Patent number: 5858526
    Abstract: The invention relates to a composite material having a high refractive index, its production process, as well as optically active materials such as antireflection materials and reflecting materials manufactured from the composite material. This composition material with a high refractive index is characterized in that it comprises SiO.sub.2 or metal oxide colloids (1), coated in a polyvinyl material (3), soluble in a water-containing alcoholic solvent.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: January 12, 1999
    Assignee: Commissariat A L'Energie Atomique
    Inventors: Herve Floch, Philippe Belleville
  • Process for the production of thin coatings having optical and abrasion resistance properties
    Patent number: 5698266
    Abstract: The present invention relates to a process for the production of thin coatings having optical and abrasion resistance properties.The object of the invention is to produce optical thin coatings having good mechanical strength characteristics, i.e. a good resistance to abrasion and an adequate adhesion to the substrate on which they are deposited.This object is achieved with the aid of a process comprising at least one cycle constituted by stages consisting of:applying to a substrate (1) at least one antireflection sol-gel coating (3) constituted by a colloidal silicon oxide suspension dispersed in an aliphatic alcohol,allowing said antireflection coating (3) to dry,subjecting the substrate (1) covered with said colloidal silica coating (3) to an alkaline treatment in a liquid or gaseous medium.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: December 16, 1997
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Herve Floch, Philippe Belleville
  • Process for the production of thin films having optical properties
    Patent number: 5639517
    Abstract: A method is provided for fabricating thin films having various optical properties is provided. The disclosed method includes preparing a colloidal suspension and depositing the suspension on a substrate using a coating cylinder. The disclosed method finds particular utility in the area of manufacturing dielectric mirrors and non-reflecting films.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: June 17, 1997
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Herve Floch, Philippe Belleville
  • International dielectric mirror and production process for such a mirror
    Patent number: 5623375
    Abstract: The present invention relates to an interferential or interference dielectric mirror and to its production process. The mirror includes a ground, planar substrate, whose surface has been replicated with a thermal plastic resin, the substrate being covered with at least one layer of colloids having a low refractive index and at least one layer of colloids having a high refractive index, the two layer types being arranged in an alternating manner. The mirror is both inexpensive and resistant to laser flux.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: April 22, 1997
    Assignee: Commissariat A L'energie Atomique
    Inventors: Herve Floch, Michel Berger
  • Material having antireflection, hydrophobic and abrasion resistance properties and process for depositing an antireflection, hydrophobic and abrasion resistant coating on a substrate
    Patent number: 5476717
    Abstract: A material having antireflection properties, and a method of depositing an antireflection coating on a substrate, are disclosed. In order to obtain a coating having simultaneously antireflection, hydrophobic and abrasion resistance properties, a material is used comprising: an organic or inorganic substrate (2); an adhesion promoter layer (4) of a material selected from silanes; an antireflection coating (6) formed from colloids of silica in a siloxane binder; a coupling agent layer (8) of a material selected from silazanes; and an anti-abrasion layer (10) of a fluorinated polymer. These materials have specific applications in optics.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: December 19, 1995
    Assignee: Commissariat a L'Energie Atomique
    Inventor: Herve Floch