Abstract: Methods for edging optical articles comprising two main faces, at least one of which being coated with an outermost layer comprising fixing the optical article to a chuck with a holding pad that adheres to both the optical article and the chuck, wherein the surface of the holding pad contacting the optical comprises an adhesive material; and edging the optical article with an edging device; wherein prior to fixing the optical article to the chuck, at least one temporary layer of an organic material is formed onto said outermost layer of the optical article, the organic material of the temporary layer comprising at least one organic compound having a fluorinated functional moiety and at least one linking functional moiety capable of establishing at least one intermolecular bond or interaction with the adhesive material of the holding pad. Optical articles obtained via these methods.

Abstract: Embodiments of the present disclosure relate to a method and system for detecting a presence and/or quantity of lead within a section of buried piping, without excavation, by calculating electrical resistance of a section of the piping. At least one embodiment of the present disclosure comprises coupling source leads of wire and sensor leads of wire to separated locations of a section of piping buried in a field setting. After the source leads and sensor leads are coupled, electrical current flow may be delivered to the section of piping via the source leads. A voltage level between the sensor leads may be measured via a voltmeter connected to the sensor leads. Resistance of the section of piping, as a function of the electrical current flow and the measured voltage level, is calculated to determine whether at least a portion of the section of piping includes lead and/or quantity of lead.

Abstract: The present invention is dedicated to a method for the manufacture of an optical article comprising the following steps: providing a substrate having two main faces and bearing —OH functions on at least one of its faces, successively exposing one face of the substrate bearing —OH functions to at least 2 distinct materials named M1 and M2, M1 having a weight average molecular weight higher than M2, in a vacuum chamber under conditions resulting in the deposit of those materials on the surface of the substrate, and wherein: M1 is a substituted silane comprising: at least one function X1 bonded to a silicon atom, wherein the Si—X1 group is capable of forming a covalent bond with a —OH group of the substrate and/or a covalent bond with M2, and at least one fluorine containing group, M2 is a substituted silane having a number average molecular weight inferior or equal to 900 g/mol, comprising: at least one function X2 bonded to a silicon atom, wherein the Si—X2 group is capable of forming a covalent bond with a —O

Abstract: Methods for edging optical articles comprising two main faces, at least one of which being coated with an outermost layer comprising fixing the optical article to a chuck with a holding pad that adheres to both the optical article and the chuck, wherein the surface of the holding pad contacting the optical comprises an adhesive material; and edging the optical article with an edging device; wherein prior to fixing the optical article to the chuck, at least one temporary layer of an organic material is formed onto said outermost layer of the optical article, the organic material of the temporary layer comprising at least one organic compound having a fluorinated functional moiety and at least one linking functional moiety capable of establishing at least one intermolecular bond or interaction with the adhesive material of the holding pad. Optical articles obtained via these methods.

Abstract: An optical article having anti-fogging properties is disclosed. The optical article includes an anti-reflecting coating having anti-fogging properties even when the optical articles are provided with an anti-soiling top coat layer. The optical article may particularly find use in ophthalmic lenses, including eyeglass lenses.

Abstract: The present invention is dedicated to a method for the manufacture of an optical article comprising the following steps: providing a substrate having two main faces and bearing —OH functions on at least one of its faces, successively exposing one face of the substrate bearing —OH functions to at least 2 distinct materials named M1 and M2, M1 having a weight average molecular weight higher than M2, in a vacuum chamber under conditions resulting in the deposit of those materials on the surface of the substrate, and wherein: M1 is a substituted silane comprising: at least one function X1 bonded to a silicon atom, wherein the Si—X1 group is capable of forming a covalent bond with a —OH group of the substrate and/or a covalent bond with M2, and at least one fluorine containing group, M2 is a substituted silane having a number average molecular weight inferior or equal to 900 g/mol, comprising: at least one function X2 bonded to a silicon atom, wherein the Si—X2 group is capable of forming a covalent bond with a —O

Abstract: An optical article having anti-fogging properties, comprising a substrate having one main face coated with an anti-reflecting stack of layers of low refractive index (Ll) and high refractive index (HI) including an outermost and innermost layer, wherein the outermost layer of the anti-reflecting stack is a sandwich layer comprising a core portion interleaved between two side portions, said core portion being made of SiO2, SiOx with 1?x<2, a mixture of SiO2 and SiOx or a mixture of SiO2 and/or SiOx with 10% by weight or less, based on the total weight of the mixture, of AI2O3, having a physical thickness ranging from 20 to 150 nm, preferably 30 to 80 nm and being formed by vacuum evaporation deposition in a vacuum chamber at a deposition rate of at least 1.10 nm/s and/or maintaining a pressure higher than or equal to 1×10?4 mbar, preferably ranging from 1.

Abstract: Methods for edging optical articles comprising two main faces, at least one of which being coated with an outermost layer comprising fixing the optical article to a chuck with a holding pad that adheres to both the optical article and the chuck, wherein the surface of the holding pad contacting the optical comprises an adhesive material; and edging the optical article with an edging device; wherein prior to fixing the optical article to the chuck, at least one temporary layer of an organic material is formed onto said outermost layer of the optical article, the organic material of the temporary layer comprising at least one organic compound having a fluorinated functional moiety and at least one linking functional moiety capable of establishing at least one intermolecular bond or interaction with the adhesive material of the holding pad. Optical articles obtained via these methods.

Abstract: Methods for edging optical articles comprising two main faces, at least one of which being coated with an outermost layer comprising fixing the optical article to a chuck with a holding pad that adheres to both the optical article and the chuck, wherein the surface of the holding pad contacting the optical comprises an adhesive material; and edging the optical article with an edging device; wherein prior to fixing the optical article to the chuck, at least one temporary layer of an organic material is formed onto said outermost layer of the optical article, the organic material of the temporary layer comprising at least one organic compound having a fluorinated functional moiety and at least one linking functional moiety capable of establishing at least one intermolecular bond or interaction with the adhesive material of the holding pad. Optical articles obtained via these methods.

Abstract: A process is provided where at least one main face of an optical lens is subjected to a corona discharge or atmospheric plasma treatment. The optical lens is dipped in a curable coating composition to deposit a layer of the curable coating composition on said main face, and is then cured. During the whole process, the optical lens is carried by a same lens holder so that the lens face is freely accessible and without necessitating manual handling of the lens.

Abstract: The invention relates to a method for edging an optical article comprising the following steps: providing an optical article having two main faces, at least one of which being coated with an outermost layer; fixing the optical article to a chuck by means of a holding pad, the surface of the holding pad to be contacted with the optical article being coated with an adhesive material; and edging the optical article; wherein prior the step of fixing the optical article to the chuck, at least one temporary protective layer of an organic material is formed onto said outermost layer of the optical article, the organic material of the temporary protective layer comprising at least one organic compound having a fluorinated functional moiety, and a linking functional moiety capable of establishing at least one intermolecular bond or interaction with the adhesive material of the holding pad.

Abstract: The process comprises the steps of: (a) subjecting said at least one main face of an optical lens to a corona discharge or atmospheric plasma treatment; (b) dipping the optical lens in a curable coating composition to deposit a layer of the curable coating composition on said main face; and (c) curing the curable coating composition layer; wherein during the whole process the optical lens is carried by a same lens holder so that the said lens face is freely accessible and without necessitating manual handling of the lens.