Abstract: The invention concerns an optical lens comprising (i) a temporary coating at least partially covering a surface of the lens, said temporary coating comprising an outermost layer mechanically degradable through friction and/or contact; (ii) a removable film having opposite first side and second sides which adhere to said outermost layer through its first side, wherein—the first side of the film has a roughness Rq lower than 750 nm and the first side of the film has a surface energy lower than 38 mJ/m2.

Abstract: The invention concerns an optical lens comprising (i) a temporary coating at least partially covering a surface of the lens, said temporary coating comprising an outermost layer mechanically degradable through friction and/or contact; (ii) a removable film having opposite first side and second sides which adhere to said outermost layer through its first side, wherein—the first side of the film has a roughness Rq lower than 750 nm and the first side of the film has a surface energy lower than 38 mJ/m2.

Abstract: A process is described for manufacturing an ophthalmic lens containing a Fresnel microstructured surface inside the lens. The Fresnel lens is injection molded with a mold insert having a heat conductivity lower than the thermoplastic material used to form the Fresnel lens. A second thermoplastic material is overmolded to the Fresnel lens to cover and protect the microstructured surface. The mold insert is made from nickel or a thermoplastic material. The resulting lens includes two layers having different refractive indices. The Fresnel lens may be made from polycarbonate while the overmold may be made from a poly(methyl methacrylate) or a thermoplastic polyurethane.

Abstract: The present invention relates to an article having at least one surface, wherein said surface is at least partially coated with a ultra high hydrophobic film having a surface roughness such that the film exhibits a static water contact angle at least equal to 115°, preferably 120°, even better 125°, and wherein said film is a nanostructured film comprising a first layer comprising nanoparticles bound by at least one binder adhering to the surface of the article, and a second layer of an anti-fouling top coat at least partially coating said first layer. The present invention also concerns a process for preparing the above article.

Abstract: The present invention is drawn to a process of drilling organic glasses, comprising the steps of: (a) providing a substrate of organic glass, preferably of optical grade, (b) laminating onto at least one surface of said organic glass substrate via an adhesive layer selected from the group consisting of pressure sensitive adhesives and hot melt adhesives, a thermoplastic polymer film having a thickness of at least 40 ?m and an elastic modulus of at least 3 GPa, the peel strength of the thermoplastic polymer on the organic glass substrate being higher than 1.3 N/25 mm, preferably of at least 1.5N/25 mm, (c) drilling a hole through the substrate and polymer film by means of a drill, and (d) optionally removing the thermoplastic polymer film and adhesive.

Abstract: Methods and apparatuses for coating at least a portion of a curved surface of a lens with a polarizing liquid are disclosed throughout the specification. For example, there is provided a method comprising providing a lens having a curved surface, and applying a polarizing liquid to at least a portion of the curved surface by shear flow with a flexible apparatus. Other methods are included. Apparatuses include ophthalmic lenses having polarized coatings formed according to any of the disclosed methods.

Abstract: The present invention is drawn to a process of drilling organic glasses, comprising the steps of: (a) providing a substrate of organic glass, preferably of optical grade, (b) laminating onto at least one surface of said organic glass substrate via an adhesive layer selected from the group consisting of pressure sensitive adhesives and hot melt adhesives, a thermoplastic polymer film having a thickness of at least 40 ?m and an elastic modulus of at least 3 GPa, the peel strength of the thermoplastic polymer on the organic glass substrate being higher than 1.3 N/25 mm, preferably of at least 1.5 N/25 mm, (c) drilling a hole through the substrate and polymer film by means of a drill, and (d) optionally removing the thermoplastic polymer film and adhesive.

Abstract: A process for manufacturing an ophthalmic lens containing a Fresnel microstructured surface inside the lens. The Fresnel lens is injection molded with a mold insert having a heat conductivity lower than the thermoplastic material used to form the Fresnel lens. A second thermoplastic material is overmolded to the Fresnel lens to cover and protect the microstructured surface. The mold insert is made from Nickel or thermoplastic. The resulting lens includes two layers having different refractive indices. The Fresnel lens is made from polycarbonate while the overmold is made from PMMA or TPU.

Abstract: The present invention relates to an article having at least one surface, wherein said surface is at least partially coated with a ultra high hydrophobic film having a surface roughness such that the film exhibits a static water contact angle at least equal to 115°, preferably 120°, even better 125°, and wherein said film is a nanostructured film comprising a first layer comprising nanoparticles bound by at least one binder adhering to the surface of the article, and a second layer of an anti-fouling top coat at least partially coating said first layer. The present invention also concerns a process for preparing the above article.

Abstract: The present invention relates to a light polarizing ophthalmic lens comprising a substrate made of organic glass and an optically transparent composite film deposited on the front main face of the substrate, said transparent composite film comprising a latex layer having an outer main face provided with parallel microgrooves, and a polarizing dye material filling at least partially the said microgrooves. The present invention also relates to a process for the manufacture of the light polarizing ophthalmic lens.

Abstract: A transparent and polarizing vision element (2) divided into several areas. At least two of said areas are associated with a luminous polarization filter. The light flowing through the element is allocated differently for two the areas according to a direction of polarization of the light. At least one polarization filter is oriented vertically, and at least one polarization filter is oriented horizontally in relation to the usual position of the element.

Abstract: The present invention relates to an article having at least one surface, wherein said surface is at least partially coated with a ultra high hydrophobic film having a surface roughness such that the film exhibits a static water contact angle at least equal to 115°, preferably 120°, even better 125°, and wherein said film is a nanostructured film comprising a first layer comprising nanoparticles bound by at least one binder adhering to the surface of the article, and a second layer of an anti-fouling top coat at least partially coating said first layer. The present invention also concerns a process for preparing the above article.

Abstract: Methods of coating at least a portion of a curved surface of a lens with a polarizing liquid. One method includes providing a lens having a curved surface and a lens axis; and rotating the lens about a rotation axis such that a polarizing liquid flows over at least a portion of the curved surface; the rotation axis being offset from the lens axis. Other methods are included. Apparatuses include ophthalmic lenses having polarized coatings formed according to any of the disclosed methods.

Abstract: The present invention relates to a light polarizing ophthalmic lens comprising a substrate made of organic glass and an optically transparent composite film deposited on the front main face of the substrate, said transparent composite film comprising a latex layer having an outer main face provided with parallel microgrooves, and a polarizing dye material filling at least partially the said microgrooves. The present invention also relates to a process for the manufacture of the light polarizing ophthalmic lens.

Abstract: The present invention relates to a light polarizing ophthalmic lens comprising a substrate made of organic glass and an optically transparent composite film deposited on the front main face of the substrate, said transparent composite film comprising a latex layer having an outer main face provided with parallel microgrooves, and a polarizing dye material filling at least partially the said microgrooves. The present invention also relates to a process for the manufacture of the light polarizing ophthalmic lens.

Abstract: A method for providing a polarizing layer on a curved optical element comprises using a support for temporarily carrying the polarizing layer. The support is resilient so that it can conform with the curved surface of the optical element. An adhesive layer is first deposited on the optical element surface, and the polarizing layer is applied on the adhesive layer by pressing the support. Then, the support is peeled so that the polarizing layer remains on the optical element. The method is compatible with high efficiency polarizing layer based on dichroic compounds.

Abstract: Methods and apparatuses for coating at least a portion of a curved surface of a lens with a polarizing liquid are disclosed throughout the specification. For example, there is provided a method comprising providing a lens having a curved surface, and applying a polarizing liquid to at least a portion of the curved surface by shear flow with a flexible apparatus. Other methods are included. Apparatuses include ophthalmic lenses having polarized coatings formed according to any of the disclosed methods.

Abstract: A transparent and polarizing vision element (2) divided into several areas. At least two of said areas are associated with a luminous polarization filter. The light flowing through the element is allocated differently for two the areas according to a direction of notarization of the light. At least one polarization filter is oriented vertically, and at least one polarization filter is oriented horizontally in relation to the usual position of the element.

Abstract: The present invention relates to an article having at least one surface, wherein said surface is at least partially coated with a ultra high hydrophobic film having a surface roughness such that the film exhibits a static water contact angle at least equal to 115°, preferably 120°, even better 125°, and wherein said film is a nanostructured film comprising a first layer comprising nanoparticles bound by at least one binder adhering to the surface of the article, and a second layer of an anti-fouling top coat at least partially coating said first layer. The present invention also concerns a process for preparing the above article.

Abstract: Methods of coating at least a portion of a curved surface of a lens with a polarizing liquid. One method includes providing a lens having a curved surface and a lens axis; and rotating the lens about a rotation axis such that a polarizing liquid flows over at least a portion of the curved surface; the rotation axis being offset from the lens axis. Other methods are included. Apparatuses include ophthalmic lenses having polarized coatings formed according to any of the disclosed methods.