Abstract: A method for manufacturing an ophthalmic lens including selecting a base of polymeric material and applying a multiple layer structure coating. The coating is selected by designating an interphase, a first layer (of 91-169 nm) with a refraction index higher than 1.8, a second layer (of 128-248 nm) with a refraction index lower than 1.65, a third layer (of 73-159 nm) with a refraction index higher than 1.8 and a fourth layer (of 40-138 nm) with a refraction index lower than 1.8. A total thickness of the multiple layer structure is less than 600 nm. The structure has intermediate layer(s) with intermediate refraction indices, wherein a doublet of two adjacent layers that fulfil the thicknesses above is replaced by a triplet so that the thickness and an optical thickness of the triplet differ from those of the doublet by less than 5%, respectively.

Abstract: Ophthalmic lens including a base of polymeric material with a coating having an interferential, anti-reflective, anti-iridescent and infrared filter multiple layer structure. An interphase, a first layer (of 91-169 nm) with a refraction index higher than 1.8, a second layer (of 128-248 nm) with a refraction index lower than 1.65, a third layer (of 73-159 nm) with a refraction index higher than 1.8 and a fourth layer (of 40-138 nm) with a refraction index lower than 1.8. A total thickness of the multiple layer structure is less than 600 nm. The structure can have intermediate layers with intermediate refraction indices, in which case a doublet of two adjacent layers that fulfill the thicknesses above is replaced by a triplet so that the thickness and an optical thickness of the triplet differ from those of the doublet by less than 5%, respectively.

Abstract: Ophthalmic lens including a base of polymeric material with a coating having an interferential, anti-reflective, anti-iridescent and infrared filter multiple layer structure. An interphase, a first layer (of 91-169 nm) with a refraction index higher than 1.8, a second layer (of 128-248 nm) with a refraction index lower than 1.65, a third layer (of 73-159 nm) with a refraction index higher than 1.8 and a fourth layer (of 40-138 nm) with a refraction index lower than 1.8. A total thickness of the multiple layer structure is less than 600 nm. The structure can have intermediate layers with intermediate refraction indices, in which case a doublet of two adjacent layers that fulfil the thicknesses above is replaced by a triplet so that the thickness and an optical thickness of the triplet differ from those of the doublet by less than 5%, respectively.

Abstract: Finished ophthalmic lens and corresponding methods. Finished ophthalmic lens having one concave face, one convex face; an outer perimeter with a thickness within a pre-established range; a central useful area that fulfills a pre-established ophthalmic prescription, which defines a machined surface, and which has a useful perimeter that coincides with a perimeter of a pre-established frame; and an outer transition area that joins the useful perimeter of the central useful area to the outer perimeter. A transition area includes a transition surface that extends from the machined surface and as far as the outer perimeter, is continuous and a derivative thereof is continuous on all points, including a joining line between the transition surface and the machined surface.

Abstract: A method for designing and manufacturing a monofocal ophthalmic lens and corresponding lens. A surface of the monofocal ophthalmic lens is defined by: f(x,y)=a1+a2?{square root over (1?a3x2?a4y2)}+a5exp{a6x4+a7y4+a8x2y2} wherein x and y are perpendicular optical axes of the lens in a plane, wherein a1-a8 are coefficients, and wherein a5 is other than 0 and at least one of a6, a7 and a8 is other than 0, including a hyperbolic component and an exponential component. The coefficients can be calculated by an iterative calculation and the merit function as follows: fm = [ ? i ? ? i ? m i 2 ? ( ? ) ] 1 / 2 where mi is a value of an optical property at a specific viewing angle ? with respect to an optical axis of the lens, and ?i is a weighting value.

Abstract: Ophthalmic lens including a base of polymeric material with a coating having an interferential, anti-reflective, anti-iridescent and infrared filter multiple layer structure. An interphase, a first layer (of 91-169 nm) with a refraction index higher than 1.8, a second layer (of 128-248 nm) with a refraction index lower than 1.65, a third layer (of 73-159 nm) with a refraction index higher than 1.8 and a fourth layer (of 40-138 nm) with a refraction index lower than 1.8. A total thickness of the multiple layer structure is less than 600 nm. The structure can have intermediate layers with intermediate refraction indices, in which case a doublet of two adjacent layers that fulfil the thicknesses above is replaced by a triplet so that the thickness and an optical thickness of the triplet differ from those of the doublet by less than 5%, respectively.

Abstract: Method for designing a progressive ophthalmic lens with a top area between a vision area and a top edge of the lens, and a bottom area between a near vision area and a bottom edge of the lens. Selecting a predesigned lens, lateral aberrations which are redistributed around an outer area, defined according to a frame chosen by the lens user, so that at least on one of intersections between top, bottom and outer areas, the aberrations adopt values higher than those in the predesigned lens.

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: Procedure for designing a progressive ophthalmic lens and corresponding lens. Procedure for designing a progressive ophthalmic lens, comprising a top area (7) between the far vision area (1) and the top edge of the lens and a bottom area (9) between the near vision area (3) and the bottom edge of the lens, which comprises an optimization stage wherein starting with a predesigned lens the lateral aberrations of the lens are redistributed around an outer area (15), defined according to a frame chosen by the future lens user, so that at least on one of the intersections between top (7) and bottom (9) areas and outer area (15), the aberrations adopt values higher than those they had in the predesigned lens.

Abstract: Polymer based lens including a hardening layer, an interferential multi-layer and an absorbent layer therebetween. The absorbent layer is made from a metal, metal oxide or metal nitride, suitable for producing a transparent layer via deposition by sputtering, and includes cations of a coloring metal from the group made up of transition elements which, in oxided form, have a cation that absorbs electromagnetic radiation in the visible spectrum. The cations of the coloring metal are in a proportion between 10% and 70% atomic percentage of the cations with respect to the cation of the predominant metal in said absorbent layer.

Abstract: Finished ophthalmic lens and corresponding methods. Finished ophthalmic lens having one concave face, one convex face; an outer perimeter with a thickness within a pre-established range; a central useful area that fulfils a pre-established ophthalmic prescription, which defines a machined surface, and which has a useful perimeter that coincides with a perimeter of a pre-established frame; and an outer transition area that joins the useful perimeter of the central useful area to the outer perimeter. A transition area includes a transition surface that extends from the machined surface and as far as the outer perimeter, is continuous and a derivative thereof is continuous on all points, including joining line between the transition surface and the machined surface.

Abstract: Polymeric based lens having a hardening layer, an interferential multi-layer and a hard layer sandwiched between both, and corresponding manufacturing method. The hardening layer is over 500 nm thick. The interferential multi-layer is made up of a plurality of sub layers each of which is less than 250 nm thick. The hard layer is over 300 nm thick. The lens can also have a flexible layer, obtained by polymerizing organometallic monomers by means of PECVD and/or sputtering, arranged between the hardening layer and the hard layer. The manufacturing method includes a high vacuum activation phase of the hardening layer surface, before the hard layer formation stage.