Abstract: The invention relates to an optical article including a transparent substrate of organic glass, preferably a substrate of an ophthalmic lens, an adhesive layer covering at least one of the faces of the transparent substrate, a transparent film of thermoplastic polymer fixed on the transparent substrate by means of the adhesive layer, an anti-abrasion hard coating covering the transparent film of thermoplastic polymer, and a multilayer antireflection coating formed from alternating mineral layers with high and low refractive index. The invention also relates to a method of manufacturing said article.

Abstract: An aspect of the present invention relates to an eyeglass lens, which comprises an outermost layer in the form of a water-repellent vapor deposition film formed by vapor depositing a vapor deposition material in the form of a perfluoropolyether-modified silane compound denoted by general formula (I): wherein, in general formula (I), R1 denotes an alkyl group with 1 or 2 carbon atoms, x denotes 1 or 0, R2 denotes an alkoxy group with 1 or 2 carbon atoms, R3 denotes a hydrogen atom or a phenyl group, and n denotes an integer ranging from 10 to 40.

Abstract: This invention relates to an optical article having antistatic and antireflection or reflective properties, comprising a substrate having at least one main surface coated with an antireflection or reflective coating, said coating comprising at least one electrically conductive layer comprising at least 30% tin oxide (SnO2) by weight relative to the total weight of the electrically conductive layer, said electrically conductive layer having been deposited by ion-assisted deposition, and said substrate having a water uptake rate equal to or greater than 0.6% by weight relative to the total weight of said substrate, the water uptake rate being measured after predrying said substrate and then storing it for 800 hours in a chamber at 50° C. under 100% relative humidity and at atmospheric pressure.

Abstract: The present invention relates to an abrasion-resistant film comprising a transparent thermoplastic film and an abrasion-resistant composite coating, formed from a lower layer in contact with the thermoplastic film and an upper layer superimposed on the lower layer, said layers each containing a hydrolyzed epoxysilane and a hydrolyzed alkoxysilane, in different weight ratios. The present invention also relates to a multilayer optical article, preferably an ophthalmic lens, comprising a transparent substrate, an adhesive layer and the abovementioned abrasion-resistant film, and also to two processes for manufacturing such an article.

Abstract: The present disclosure is directed to a thermoplastic laser protective eyewear, and methods of manufacturing said thermoplastic laser protective eyewear. In one embodiment, the laser protective eyewear transmits energy in the visible region and absorbs or reflects energy at peak wavelengths that correspond to commercially available industrial, military and medical lasers.

Abstract: The present disclosure provides a method of forming a removable protective coating on a hydrophobic surface of an ophthalmic lens element. The method includes providing an ophthalmic lens element having a hydrophobic surface. A non-aqueous coating composition is applied so as to coat at least part of the hydrophobic surface. The composition includes a film forming coating polymer and a compatible non-aqueous solvent. A substantial portion of the solvent is removed from the composition to form a removable protective coating on the ophthalmic lens element that adheres to the hydrophobic surface. The disclosure also provides a removable protective coating, and an ophthalmic lens element having the coating.

Abstract: Lens comprising a polymeric substrate, a hardening layer and a metallic layer. Lens comprising a substrate of polymeric material (P), and which is coated with a hardening layer (E) and a metallic layer (M) that is between 1 and 20 nm thick. The coating also has an anti-humidity layer (AH) made of a material from the group made up of ZrO2, Nb2O3, Ta2O5, CeO2, HfO2, La2O3, TiO2, Pr2O3, Sc2O3, WO3, Y2O3, ZnS and the combinations thereof, that is between 35 nm and 55 nm thick, where between the anti-humidity layer (AH) and the hardening layer (E) there is no other sandwiched layer that is thicker than or equivalent to the anti-humidity layer (AH). Over the metallic layer (M) there is a first high refraction index layer (A1), and a first low refraction index layer (B1).

Abstract: The present invention relates to an optical lens, in particular for use as a spectacle lens, having a lens element and a coating for producing an antistatic effect, said coating being applied onto the lens element and having a plurality of layers. Further, the antistatic effect is provided by two layers adjoining one another, wherein at least one of the two layers adjoining one another is formed in a non-stoichiometric fashion. Furthermore, the present invention relates to a method for producing a corresponding optical lens.

Abstract: An infrared absorbing polarized eyeglass lens substrate includes a polarizing element including a polarizing film and a polyurethane resin material containing an infrared absorbing agent and covering both surfaces of the polarizing film, and an eyeglass lens substrate made of a polyurethane resin not containing an infrared absorbing agent and configured to be ground for adjusting lens power. The polarizing element is superposed on one side of the eyeglass lens substrate and integrated therewith by insert molding which accompanies polymerization reaction of the polyurethane resin material.

Abstract: A new type of lens for eyeglasses and a method for obtaining the same. The lens is composed of a transparent substrate; a composite layer disposed between the substrate and a layer of precious metal, such as gold, the composite layer is composed of at least two layers. A combination for the composite layer is an anti-reflective layer applied directly to the substrate and made of a metal such as chromium; the anti-reflective layer is advantageously made of silicon oxide.

Abstract: Polycarbonate Frame (1) manufactured to house an Interchangeable PVC Prescription Optical Foil (2) manufactured to conform to the polycarbonate frame dimensions is provided. The polycarbonate frame (1) includes a central nose bridge portion (3), moulded lenses (4), nose pads (5), first and second wrap around frame arms (6a and 6b) first and second frame arm hinge gussets (7a and 7b) designed to strengthen the frame hinge and locate the PVC Prescription Optical Foil In its correct optical position, broad outer temples (8a and 8b), deep inner hinges (9a and 9b) to securely attach and lock the PVC Prescription Optical Foil into Its correct location within the frame. The Prescription Optical Foil (2) provides two Inner foil radiuses (10a and 10b) for the fitting of prescription corrective lenses, nose bridge (11) is compatible with the nose bridge Of the Polycarbonate Frame (1), nose pad hooks (12a and 12b) are supplied to ensure correct central alignment end location of the PVC Prescription Optical Foil.

Abstract: The polymerizable composition for an optical material of the present invention comprises a phenylene diisocyanate, at least one polythiol compound selected from the group consisting of 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, 4,8-, 4,7- or 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 2,5-bis(mercaptomethyl)-1,4-dithiane, bis(mercaptoethyl)sulfide, 1,1,3,3-tetrakis(mercaptomethylthio)propane, 4,6-bis(mercaptomethylthio)-1,3-dithiane, 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithietane, 1,1,2,2-tetrakis(mercaptomethylthio)ethane 3-mercaptomethyl-1,5-dimercapto-2,4-dithiapentane and tris(mercaptomethylthio)methane.

Abstract: An optical article includes: an optical substrate, and a functional layer laminated on the surface of the optical substrate, the functional layer having a thickness T ?m that satisfies the following condition: 6.5dn+4.0?T?100 wherein the thickness T is larger than 5 ?m, and dn is the refractive index difference at the boundary of the optical substrate and the functional layer and satisfies the following condition: 0.06?dn?0.4.

Abstract: A heat-curable composition comprises from 25 to 65% by weight of a mixture of epoxy-functional monomers, said mixture consisting of at least one polyfunctional epoxy monomer selected from monomers comprising from 4 to 8 glycidyl groups and/or cycloaliphatic epoxy groups, and at least one bi- or tri-functional epoxy monomer selected from monomers comprising two or three glycidyl groups and/or cycloaliphatic epoxy groups, from 25 to 70% by weight of at least one organic solvent selected from glycol monoethers, from 2.5 to 5% by weight, relative to the total weight of epoxyfunctional monomers (a) and (b), of at least one blocked strong acid catalyst, said heat-curable composition not containing any non-epoxyfunctional monomers, in particular not containing any acrylic, methacrylic or silane monomers.

Abstract: A method of generating a high precision optical surface profile includes obtaining a high precision optical surface profile which contains information of the optical path difference map of the profile. A substrate material has a known index of refraction, Ns, while a cover material has an index Nc that is more closely matched to the index Ns of the substrate material than the index of air Nair to Ns. An exaggerated surface profile is cut that is proportionally expanded from the high precision profile by a factor: (Ns?Nair) divided by (Ns?Nc). The cut surface profile is covered with the cover material.

Abstract: An ophthalmic lens includes: a transparent ophthalmic lens substrate made of organic glass; an adhesive layer covering at least one of the faces of the transparent substrate; a transparent film made of a thermoplastic polymer fixed to the transparent substrate via the adhesive layer; and an abrasion-resistant coating covering the transparent thermoplastic polymer film, characterized in that the ophthalmic lens has a minimum thickness at the centre of less than 2 mm, preferably less than 1.5 mm and even more preferably less than 1.2 mm. Two processes for manufacturing such a lens and the use of an adhesive multilayer film to improve the impact strength of such a lens are also described.

Abstract: A product (30) for optical use and a method of using the product, which includes at least two splittable superposed layers, namely a transparent and flexible optical layer (31) suitable for sticking onto a lens of an eyeglass frame, and a first packaging layer (35) for packaging the optical layer and presenting stiffness greater than the stiffness of the optical layer so as to enable the product to be machined via a conventional appliance for shaping eyeglass lenses.

Abstract: The present invention relates to an optical lens, in particular for use as a spectacle lens, having a lens element and a coating for producing an antistatic effect, said coating being applied onto the lens element and having a plurality of layers. Further, the antistatic effect is provided by two layers adjoining one another, wherein at least one of the two layers adjoining one another is formed in a non-stoichiometric fashion. Furthermore, the present invention relates to a method for producing a corresponding optical lens.

Abstract: The present invention relates to ophthalmic systems and coatings comprising a selective light wavelength filter, wherein said selective filter provides improved contrast sensitivity.

Abstract: An antifouling film is introduced on a base of an optical product such that (1) an absolute value of a charged electrostatic potential is 2.00 kV or less, and (2) a surface peel strength is 0.10 N/19 mm or less. A hard coat film and an optical multilayer film are placed between the base of the optical product and the antifouling film. An antireflection film is provided as the optical multilayer film, and a base of a spectacle plastic lens is provided as the base of the optical product.