Abstract: Method implemented by computer for optimizing a set of optical lens blanks used to manufacture a set of optical lenses, each optical lens comprising first and second optical surfaces, the first and second optical surfaces being connected by a external periphery surface, the method comprising: a data providing step during which a set of data for every optical lens of the set of optical lenses is provided, the data comprising at least contour data representative of an external periphery surface of the optical lens, a first dataset representative of the first optical surface of the optical lens and a second dataset representative of the second optical surface of the optical lens; a supply cost function providing step during which a supply cost function is provided, the supply cost function being a function of the number of different optical lens blank comprised in the set of optical lens blanks.

Abstract: Disclosed is a method for manufacturing an ophthalmic lens to be mounted in a frame, the ophthalmic lens including an optical front face, an optical rear face, and a peripheral edge that surrounds the optical front and rear faces and that has a base portion carrying a fixing unit suitable for attaching the ophthalmic lens to at least a part of the frame, the method includes the steps of: determining a central part of the ophthalmic lens that includes at least one of the optical front face and the optical rear face; determining the peripheral edge with the fixing unit; calculating a planned manufactured device including both the fixing unit and the central part together; and manufacturing, using an additive manufacturing technology, the planned manufactured device in order to form the ophthalmic lens.

Abstract: A finished lens with a predetermined shape, including one front face, one back face and a perimeter corresponding to the shape, including a prescription part on the lens that together with the front face fulfills prescription data of a wearer and a peripheral part on the lens, the prescription part being delimited by a thickness curve and the peripheral part extending from the thickness curve towards an outer edge of the lens, the thickness curve corresponding to a value of thickness less than or equal to a predetermined thickness requirement.

Abstract: An eyeglass managing system determines process parameters for manufacturing at least part of an eyeglass including a lens and a frame. In this eyeglass managing system, an electronic system includes: —a receiving unit adapted to acquire lens data describing an initial lens and frame data describing an initial frame; —a processing unit adapted to identify, based on the lens data and on the frame data, modification parameters deriving from the interaction between the initial lens and the initial frame; and—a transmitting unit adapted to transmit a list of proposed modifications based on the identified modification parameters. The receiving unit is further adapted to acquire a response to at least one proposed modification; the processing unit is further adapted to determine, based on the acquired response, process parameters of an additive manufacturing process for manufacturing the lens or the frame.

Abstract: A method of manufacturing an optical lens included the following steps: receiving optical data representing at least a characteristic of an optical correction provided by the optical lens; receiving process data representing at least one characteristic of an additive manufacturing method used to manufacture the optical lens, the process data defining at least an equipment involved in the additive manufacturing method; based on the optical data and on the process data, determining manufacturing data usable by an additive manufacturing machine implementing the additive manufacturing method; and—manufacturing the optical lens by the additive manufacturing machine using the manufacturing data. A corresponding system is also described.

Abstract: Disclosed is a method for manufacturing an ophthalmic lens to be mounted in a frame, the ophthalmic lens including an optical front face, an optical rear face, and a peripheral edge that surrounds the optical front and rear faces and that has a base portion carrying a fixing unit suitable for attaching the ophthalmic lens to at least a part of the frame, the method includes the steps of: determining a central part of the ophthalmic lens that includes at least one of the optical front face and the optical rear face; determining the peripheral edge with the fixing unit; calculating a planned manufactured device including both the fixing unit and the central part together; and manufacturing, using an additive manufacturing technology, the planned manufactured device in order to form the ophthalmic lens.

Abstract: Method implemented by computer for optimizing a set of optical lens blanks used to manufacture a set of optical lenses, each optical lens comprising first and second optical surfaces, the first and second optical surfaces being connected by a external periphery surface, the method comprising: a data providing step during which a set of data for every optical lens of the set of optical lenses is provided, the data comprising at least contour data representative of an external periphery surface of the optical lens, a first dataset representative of the first optical surface of the optical lens and a second dataset representative of the second optical surface of the optical lens; a supply cost function providing step during which a supply cost function is provided, the supply cost function being a function of the number of different optical lens blank comprised in the set of optical lens blanks.

Abstract: Method implemented by computer means for optimizing a set of optical lens blanks to be used to manufacture a set of optical lenses, each optical lens comprising a first optical surface, a second optical surface, the first and second optical surfaces being connected by a external periphery surface, the method comprising: a data providing step during which a set of data for every optical lens of the set of optical lenses is provided, the data comprising at least contour data representative of an external periphery surface of the optical lens, a first dataset representative of the first optical surface of the optical lens and a second dataset representative of the second optical surface of the optical lens; a supply cost function providing step during which a supply cost function is provided, the supply cost function being a function of the number of different optical lens blank comprised in the set of optical lens blanks, a lens blank cost function providing step during which a lens blank cost function is provi

Abstract: A method includes: providing lens blank data relating to the first, second and peripheral blank surfaces of the lens blank; providing optical lens data relating to the first, second and peripheral optical surfaces of the optical lens; virtually positioning the optical lens in the lens blank in a position so that at least one of the first optical surface or the second optical surface is included within the lens blank; evaluating a manufacturing prism cost function, the machining prism cost function corresponding to a weighed sum of the first manufacturing prism to be used when blocking the lens blank on the second surface to machine the first optical surface and of the second manufacturing prism to be used when blocking the lens blank on the first optical surface to machine the second optical surface. The positioning and evaluation steps are repeated so as to minimize the manufacturing prism cost function.

Abstract: A system, ophthalmic lens manufacturing equipment, and method for providing an ophthalmic lens. The method includes transmitting an order request of an ophthalmic lens from an ordering side to an ophthalmic lens calculator, the order request including at least prescription data of a wearer of the ophthalmic lens, generating an ophthalmic lens model from the order request, the ophthalmic lens model containing data related to the ophthalmic lens to be provided, the ophthalmic lens model data including geometrical data related to the ophthalmic lens, the geometrical data of the ophthalmic lens model being coded by using mathematical functions to define surfaces of the ophthalmic lens in a continuous way. The method further includes receiving the ophthalmic lens model and the order request at a management entity, and transmitting the ophthalmic lens model from the management entity to an ophthalmic lens manufacturing module.

Abstract: Method for determining a position of an optical lens member placed on a lens blocking ring (22). A reference system, blocking ring data, and optical lens member surface data are provided. Position parameters are provided defining a position of a reference point of the surface of the lens member with respect to the main plane of the reference system and an orientation, about the main axis of said placed surface at said reference point. The position of the placed surface is determined according to the position parameters. During a repositioning step (S6) the placed surface is virtually translated and rotated. During an altitude determination step (S7) a difference in position between the blocking ring and the placed surface is determined. The repositioning and altitude determining steps (S6, S7) are repeated so as to minimize the difference in position between the blocking ring and the placed surface.

Abstract: A method includes: providing lens blank data relating to the first, second and peripheral blank surfaces of the lens blank; providing optical lens data relating to the first, second and peripheral optical surfaces of the optical lens; virtually positioning the optical lens in the lens blank in a position so that at least one of the first optical surface or the second optical surface is included within the lens blank; evaluating a manufacturing prism cost function, the machining prism cost function corresponding to a weighed sum of the first manufacturing prism to be used when blocking the lens blank on the second surface to machine the first optical surface and of the second manufacturing prism to be used when blocking the lens blank on the first optical surface to machine the second optical surface. The positioning and evaluation steps are repeated so as to minimize the manufacturing prism cost function.

Abstract: Method implemented by computer means for optimizing a set of optical lens blanks to be used to manufacture a set of optical lenses, each optical lens comprising a first optical surface, a second optical surface, the first and second optical surfaces being connected by a external periphery surface, the method comprising: a data providing step during which a set of data for every optical lens of the set of optical lenses is provided, the data comprising at least contour data representative of an external periphery surface of the optical lens, a first dataset representative of the first optical surface of the optical lens and a second dataset representative of the second optical surface of the optical lens; a supply cost function providing step during which a supply cost function is provided, the supply cost function being a function of the number of different optical lens blank comprised in the set of optical lens blanks, a lens blank cost function providing step during which a lens blank cost function is provi

Abstract: A method of processing an unfinished optical lens member having a finished surface with a center reference point, and first and second surfaces, includes providing contour data defining the contour of the first surface in a finished cut state, the maximum distance between two points of the contour defined by Cmax; determining, an optical reference point of the first surface with respect to the contour, the optical reference point corresponding to a user's line of sight in the finished cut state, the maximum distance between the optical reference point and the contour defined by Mmax, providing a first surface dataset defining the second surface with respect to the optical reference point; and providing an unfinished optical lens member having a minimum distance RSF between the center reference point and the boundary of the unfinished lens member such that 2 RSF?Cmax and RSF<Mmax.

Abstract: The invention proposes a system for providing an ophthalmic lens, comprising:—a calculator (1) configured to receive an order request of the lens from an ordering side (4), and to generate, in response to the reception of the order request, a model containing data related to the lens to be provided,—a management entity (2) configured to receive the order request and the model, and to transmit the model to a manufacturing module,—a manufacturing module (3) configured to receive the model, and to use a functions library to calculate manufacturing process data from the model data.

Abstract: Method for determining a position of an optical lens member placed on a lens blocking ring (22). A reference system, blocking ring data, and optical lens member surface data are provided. Position parameters are provided defining a position of a reference point of the surface of the lens member with respect to the main plane of the reference system and an orientation, about the main axis of said placed surface at said reference point. The position of the placed surface is determined according to the position parameters. During a repositioning step (S6) the placed surface is virtually translated and rotated. During an altitude determination step (S7) a difference in position between the blocking ring and the placed surface is determined. The repositioning and altitude determining steps (S6, S7) are repeated so as to minimize the difference in position between the blocking ring and the placed surface.

Abstract: Method of processing an unfinished optical lens member having a finished surface with a centre reference point, and a first and second surface, includes: providing contour data defining the contour of the first surface of the lens in a finished cut state, the maximum distance between two points of the contour defined by Cmax; determining, an optical reference point of the first surface with respect to the contour, the optical reference point corresponding to a user's line of sight of the optical lens in the finished cut state, the maximum distance between the optical reference point and the contour defined by Mmax, providing a first surface dataset defining the second surface with respect to the optical reference point; providing an unfinished optical lens member having a minimum distance RSF between the centre reference point and the boundary of the unfinished lens member such that 2 RSF?Cmax and RSF<Mmax.

Abstract: Method for determining the edge contour of an uncut spectacle lens comprises: a spectacle frame data providing step, a minimum edge thickness providing step, an initial contour providing step, a thickness determining step, an optimized point selecting step, a repeating step, and a edge contour determining step.

Abstract: Method for determining the edge contour of an uncut spectacle lens comprises: a spectacle frame data providing step, a minimum edge thickness providing step, an initial contour providing step, a thickness determining step, an optimized point selecting step, a repeating step, and a edge contour determining step.

Abstract: A method is provided for determining, by optimization, an ophthtalmic lens for a spectacle wearer for whom an astigmatism has been prescribed, comprising the steps of: selecting a starting lens and defining a working lens to be equal to the starting lens; selecting a target lens; modifying the working lens, in order to minimize, in a plurality of directions of glance and in a reference frame associated with the eye differences in power between the working lens and the target lens and differences between astigmatism prescribed and astigmatism generated by the working lens. The invention makes it possible to avoid aberrations introduced, for an astigmatic spectacle wearer, by adding a toric surface having the prescribed astigmatism, thereby ensuring that the astigmatism effectively experienced by the wearer is the prescribed astigmatism.