Patents by Inventor Dominique Baude
Dominique Baude 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: 20100053547Abstract: An optical article comprising an optically transparent substrate with a main surface and, covering the main surface, an anti-smudge coating itself at least partially covered by a temporary topcoat, the anti-smudge coating being the result of the hardening of a polymerisable composition comprising: 55% to 80% by weight, preferably to by weight, of a first component A selected among fluorinated compounds, of which only one end of the chain comprises at least one silanol group or silanol precursor and their mixtures, and 45% to 20% by weight of a second component B selected among linear fluorinated compounds, preferably perfluorinated compounds, of which both ends of the chain comprise at least one silanol group or silanol precursor and their mixtures, for 100% by weight of the first component A and the second component B. The first component A and the second component B together accounting for at least 50% by weight of the total weight of the coating. Application to ophthalmic lenses.Type: ApplicationFiled: October 31, 2007Publication date: March 4, 2010Applicant: Essilor International (Compagnie Generate d'Optique)Inventors: Dominique Baude, Caroline Jousselin
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Patent number: 6552103Abstract: Novel biomimetic hydrogel materials and methods for their preparation. Hydrogels containing acrylamide-functionalized carbohydrate, sulfoxide, sulfide or sulfone copolymerized with a hydrophilic or hydrophobic copolymerizing material selected from the group consisting of an acrylamide, methacrylamide, acrylate, methacrylate, vinyl and a derivative thereof present in concentration from about 1 to about 99 wt %. and methods for their preparation. The method of use of the new hydrogels for fabrication of soft contact lenses and biomedical implants.Type: GrantFiled: May 19, 2000Date of Patent: April 22, 2003Assignee: The Regents of the University of CaliforniaInventors: Carolyn Bertozzi, Ravindranath Mukkamala, Oing Chen, Hopin Hu, Dominique Baude
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Publication number: 20010007880Abstract: This invention pertains to a process for the manufacture of a hydrophilic polymeric product, consisting in causing a material comprising a crosslinked silicone polymer matrix and photoinitiator groups dispersed and immobilized within the polymer matrix to swell in a swelling solution comprising a solvent for swelling the crosslinked silicone polymer of the matrix of the material, a photopolymerizable hydrophilic monomer and optionally a crosslinking agent and a proton- or electron-donating coinitiator compound, when the material comprises photoactivable photoinitiator groups and does not comprise proton- or electron-donating coinitiator groups causing the photopolymerizable hydrophilic monomer to diffuse into the swollen material, and polymerizing, by irradiation, the photopolymerizable hydrophilic monomer.Type: ApplicationFiled: December 28, 2000Publication date: July 12, 2001Applicant: Essilor International Compagnie Generale D'OptiqueInventors: Brigitte Marchin, Dominique Baude, Jean-Pierre Vairon, Marine-Anne Dourges, Philippe Chaumont, Joel Steiner
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Patent number: 6224210Abstract: A multifocal artificial ocular lens has at least two corrective areas, namely a near vision area to correct near vision and a distance vision area to correct distance vision. The transparency of the lens varies in inverse proportion to its illumination. A photochromic substance is incorporated into the material of the lens, which improves optical performance. Applications include central near vision contact lenses.Type: GrantFiled: December 1, 1999Date of Patent: May 1, 2001Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Nicolas Chateau, Corinne Grollier, Dominique Baude
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Patent number: 6197842Abstract: This invention pertains to a process for the manufacture of a hydrophilic polymeric product, consisting in causing a material comprising a crosslinked silicone polymer matrix and photoinitiator groups dispersed and immobilized within the polymer matrix to swell in a swelling solution comprising a solvent for swelling the crosslinked silicone polymer of the matrix of the material, a photopolymerizable hydrophilic monomer and optionally a crosslinking agent and a proton- or electron-donating coinitiator compound, when the material comprises photoactivable photoinitiator groups and does not comprise proton- or electron-donating coinitiator groups causing the photopolymerizable hydrophilic monomer to diffuse into the swollen material, and polymerizing, by irradiation, the photopolymerizable hydrophilic monomer.Type: GrantFiled: December 18, 1998Date of Patent: March 6, 2001Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Brigitte Marchin, Dominique Baude, Jean-Pierre Vairon, Marine-Anne Dourges, Philippe Chaumont, Joël Steiner
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Patent number: 6145987Abstract: A multifocal ophthalmic lens is disclosed. The power profile (P) of the lens as a function of the height (h) above the axis (A) of the lens and the addition (Add) corresponding to the degree of presbyopia of the wearer is defined by an equation of the form:P(h)=f(P.sub.VL, Add, h)+C(Add, P.sub.VL)h.sup.2 +B(Add, P.sub.VL)in which P.sub.VL is the power required for far vision, f is a function of evolution between the near vision and far vision powers, C(Add, P.sub.VL) is a spherical aberration correction coefficient depending on the addition and on the far vision power and B(Add, P.sub.VL) is a power correction coefficient depending on the spherical aberration coefficient.Type: GrantFiled: December 16, 1998Date of Patent: November 14, 2000Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Dominique Baude, Nicolas Chateau
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Patent number: 6107365Abstract: Novel biomimetic hydrogel materials and methods for their preparation. Hydrogels containing acrylamide-functionalized carbohydrate, sulfoxide, sulfide or sulfone copolymerized with a hydrophilic or hydrophobic copolymerizing material selected from the group consisting of an acrylamide, methacrylamide, acrylate, methacrylate, vinyl and a derivative thereof present in concentration from about 1 to about 99 wt %. and methods for their preparation. The method of use of the new hydrogels for fabrication of soft contact lenses and biomedical implants.Type: GrantFiled: September 2, 1998Date of Patent: August 22, 2000Assignee: The Regents of the University of CaliforniaInventors: Carolyn Bertozzi, Ravindranath Mukkamala, Qing Chen, Hopin Hu, Dominique Baude
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Patent number: 6086202Abstract: In a method of producing tolerance markings on a contact lens for correcting astigmatism which has a given cylinder, the tolerance markings comprise at least two straight line segments in the peripheral part of the contact lens with an angle 2.alpha..sub.T between them. The angle 2.alpha..sub.T between the two straight line segments of the tolerance markings depends on the cylinder of the contact lens.Type: GrantFiled: April 7, 1999Date of Patent: July 11, 2000Assignee: Essilor International (Compagnie Generale d'Optique)Inventors: Nicolas Chateau, Richard Legras, Dominique Baude
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Patent number: 6017121Abstract: A multifocal artificial ocular lens has at least two corrective areas, namely a near vision area to correct near vision and a distance vision area to correct distance vision. The transparency of the lens varies in inverse proportion to its illumination. A photochromic substance is incorporated into the material of the lens, which improves optical performance. Applications include central near vision contact lenses.Type: GrantFiled: December 30, 1996Date of Patent: January 25, 2000Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Nicolas Chateau, Corinne Grollier, Dominique Baude
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Patent number: 5912719Abstract: A contact lens has at least one palpebral boss projecting locally from its external surface in its peripheral area. The palpebral boss is globally elongate in a circumferential direction and the slope P of its crest line at both circumferential ends is in the range 0.020 to 0.140 and preferably in the range 0.040 to 0.080. Applications include contact lenses for centered optical correction and contact lenses for presbyopia.Type: GrantFiled: March 9, 1998Date of Patent: June 15, 1999Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Dominique Baude, Florence Bouchard, Nicolas Chateau, Didier Bernardet
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Patent number: 5699141Abstract: A progressive simultaneous vision optical lens for correcting presbyopia corresponding to a low addition is of the kind in which the curve representing the proximity (or power) P lies in an area between a lower envelope curve P.sub.inf and an upper envelope curve P.sub.sup having the following polynomial equations: ##EQU1## where h is the height relative to the axis of the optical lens, i.e. the radial distance from the latter. By appropriate choice of the coefficients A'.sub.i and A".sub.i, the near vision area is made relatively large. Applications include contact lenses, intraocular implants and intracorneal lenses.Type: GrantFiled: August 10, 1995Date of Patent: December 16, 1997Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Pierre Monteil, Dominique Baude, Nicolas Chateau
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Patent number: 5530491Abstract: To define a far vision area and a near vision area in a simultaneous vision ophthalmic lens for correcting presbyopia, the curve representing the proximity as a function of the distance from the axis lies within an area between a lower envelope curve and an upper envelope curve with associated specific polynomial equations in which the coefficients depend on the proximity addition corresponding to the degree of presbyopia of the wearer. Either the far vision area or the near vision area is strengthened relative to the other, the corresponding surface areas S.sub.VL, S.sub.VP being related as follows:for strengthened near vision:1.8.ltoreq.S.sub.VL /S.sub.VP .ltoreq.3.6and for strengthened far vision:4.75.ltoreq.S.sub.VL /S.sub.Type: GrantFiled: January 27, 1994Date of Patent: June 25, 1996Assignee: Essilor International Cie Generale d'OptiqueInventors: Dominique Baude, Pierre Monteil
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Patent number: 5296305Abstract: The present invention relates to a method of manufacture of an optical lens providing refractive index modulation, characterized in that, starting from a previously shaped lens of transparent hydrophilic polymer of the hydrogel type, the lens is impregnated with a photopolymerizable composition containing at least one monomer and a photoinitiator in solution in a solvent which causes swelling of the lens, the impregnated lens is subjected to irradiation which is spatially modulated in irradiation intensity and/or irradiation time, thus causing local selective polymerization of the monomer, whereupon the excess quantity of photoinitiator and non-polymerized monomer is removed by solvent extraction.Type: GrantFiled: June 4, 1993Date of Patent: March 22, 1994Assignee: Esslior International (Compagnie Generale d'Optique)Inventors: Dominique Baude, Daniel Lougnot
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Patent number: 5258024Abstract: The present invention relates to a method of manufacture of an optical lens providing refractive index modulation, characterized in that, starting from a lens of transparent hydrophilic polymer preferably of the hydrogel type, which has previously been shaped, the lens is impregnated with a photopolymerizable composition containing at least one monomer and a photoinitiator, which are in solution in water in the case of a hydrogel, the impregnated lens is subjected to locally modulated irradiation so as to cause local selective polymerization of the monomer, whereupon the excess non-hardened photoinitiator and non-pulverizable monomer is removed.Type: GrantFiled: February 14, 1991Date of Patent: November 2, 1993Assignee: Essilor International (Compaigne Generale d'Optique)Inventors: Pierre Chavel, Denis Joyeux, Daniel Lougnot, Dominique Baude, Jean-Claude Meslard, Jean Taboury
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Patent number: 5172143Abstract: The manufacture of an artificial optical lens having any given power profile starts from an artificial optical lens having a different power profile. A physical-chemical treatment method modifies the power profile to obtain a required power profile. A rotating mask is used for spatial modulation of the energy flux.Type: GrantFiled: January 15, 1991Date of Patent: December 15, 1992Assignee: Essilor International Cie Generale d'OptiqueInventors: Dominique Baude, Jean-Claude Meslard, Gerard Obrecht, Pierre Chavel, Denis Joyeux, Jean Taboury
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Patent number: 5114220Abstract: Disclosed is an ophthalmic lens which characteristically comprises at least two concentric regions having diffractive components with different phase profiles in order to use different orders of diffraction. The diffractive components may be formed by holograms in relief or index holograms.Type: GrantFiled: May 15, 1989Date of Patent: May 19, 1992Assignee: Essilor International, Compagnie Generale d'OptiqueInventors: Dominique Baude, Pierre Chavel, Denis Joyeux, Jean Taboury
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Patent number: 5104212Abstract: A diffractive contact lens in relief includes a smoothing layer (50) of optically transparent material having a smooth outside surface (51) and placed over the optical surface (16) in relief so as to immerse the relief.Type: GrantFiled: November 3, 1989Date of Patent: April 14, 1992Assignee: Essilor International-Compagnie Generale d'OptiqueInventors: Jean Taboury, Pierre Chavel, Denis Joyeux, Dominique Baude
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Patent number: 5016977Abstract: The present invention relates to an optical lens for correcting astigmatism. It includes diffractive components whose outlines are delimited by conic section curves having non-degenerate centers. More precisely, in accordance with the invention, the lens includes adjacent diffractive components having hyperbolic or elliptical outlines with a periodicity in r.sup.2 in two mutually orthogonal directions x and y intersecting on the axis of the lens and coinciding with the main axes of the hyperbolas or of the ellipses, which are determined respectively by the equations: .DELTA.r.sub.x.sup.2 =2.lambda..vertline.f.sub.x .vertline.; and .DELTA.r.sub.y.sup.2 =2.lambda..vertline.f.sub.y .vertline.; in which: .DELTA.r.sub.x.sup.2 represents the periodicity in r.sup.2 along the x direction; .DELTA.r.sub.y.sup.2 represents the periodicity in r.sup.2 along the y direction; .lambda. represents the mean utilization wavelength; f.sub.x represents the desired focal length in the X direction; and f.sub.Type: GrantFiled: February 5, 1990Date of Patent: May 21, 1991Assignee: Essilor International-Compagnie GeneraleInventors: Dominique Baude, Pierre Chavel, Denis Joyeux, Jean Taboury