Abstract: A lens element intended to be worn in front of an eye of a wearer having at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some of the optical elements of the first set and the second set are disposed in a mutual relationship in such a way that, for at least one gaze direction, a first and a second cumulative optical effect are provided at the same time for respective at least first and second incoming light beams.

Abstract: A lens element intended to be worn in front of an eye of a wearer including at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some optical elements of the second set are disposed with respect to the optical elements of the first set of the lens element to provide according to a respective first and a second gaze direction on different zones of the retina of the eye of the wearer distinct cumulative optical effects.

Abstract: It is proposed a lens intended to be worn in front of or on an eye of a wearer and to provide a first refractive power (Rx) for correcting an abnormal refraction of the eye of the wearer; wherein the lens comprises a refractive area configured to provide the first refractive power (Rx) and a functional area configured to provide an optical function; and wherein on a first zone defined on the lens, more than 5% of the surface of said first zone has a local refractive power ranging from the first refractive power (Rx) minus 0.25 diopter and the first refractive power (Rx) plus 0.25 diopter, and more than 25% of the surface of said first zone covers the functional area.

Abstract: A method for determining an ophthalmic lens adapted to slow down progression of a vision impairment of an eye of a wearer, the lens having a front surface and a back surface and at least one optical area not focusing an image on the retina of the eye. The method includes providing a plurality of wearer parameters, including at least a prescription and an indication about the need for slowing down the progression of the vision impairment, selecting a semi-finished lens that best corresponds to at least the prescription, defining at least one optical target for the front and/or back surface, taking account of the plurality of wearer parameters, and minimizing a cost function relating to the at least one optical target, so as to determine an optimized front and/or back surface of the semi-finished lens as the front and/or back surface of the ophthalmic lens.

Abstract: A lens element for a spectacle lens, a contact lens or an intraocular lens, intended to be worn by a wearer having a refraction area having a refractive power based on a prescription for said eye of the wearer and a plurality of n optical elements, at least one of the n optical elements having an optical function of not focusing an image on the retina of the eye of the wearer, the kth optical element being located in a domain defined by a closed contour, k being a positive integer equal or greater than 2 and smaller or equal to n, a coating layer may be deposited on the lens element, wherein, without taking the potential coating layer into account, the least one kth optical element presents as a standard deviation of sphere values of at least 0.

Abstract: A method implemented by a computer means includes: obtaining a lens design; the lens design representing the variation of optical aberrations as a function of the angular view point; obtaining a set of subjective values representing the sensitivity of the user to a set of optical aberrations; and correlating the set of subjective values and the lens design based on the variation of optical aberrations so as to produce correlation information, advantageously for determining to which extent the lens design is adapted to the user from the correlation.

Abstract: A lens element intended to be worn in front of an eye of a wearer including at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some optical elements of the second set are disposed with respect to the optical elements of the first set of the lens element to provide according to a respective first and a second gaze direction on different zones of the retina of the eye of the wearer distinct cumulative optical effects.

Abstract: A lens element intended to be worn in front of an eye of a wearer having at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some of the optical elements of the first set and the second set are disposed in a mutual relationship in such a way that, for at least one gaze direction, a first and a second cumulative optical effect are provided at the same time for respective at least first and second incoming light beams.

Abstract: A lens element to be worn by a wearer and to provide a refractive power based on a prescription of the wearer is provided for correcting an abnormal refraction of the eye of the wearer, the lens element including: an optical microstructure having an optical function of not focusing an image on a retina of the eye of the wearer so as to slow down the progression of the abnormal refraction, in which the modulation transfer function of the lens element, for peripheral vision, is less than or equal to 0.8 over a range of spatial frequency comprised from 3 to 7 cycles per degree, when measured through the optical microstructure for a pupil aperture of 4 mm centered at 6.6 mm from the optical center of the lens element. A computer-implemented method for determining a lens element to be worn by a wearer is also provided.

Abstract: A lens element to be worn by a wearer and to provide a refractive power based on a prescription of the wearer is provided for correcting an abnormal refraction of the eye of the wearer, the lens element including: an optical microstructure having an optical function of not focusing an image on a retina of the eye of the wearer so as to slow down progression of the abnormal refraction of the eye of the wearer, in which a modulation transfer function of the lens element is greater or equal to 0.07 over a range of spatial frequencies from 10 to 25 cycles per degree, when measured through the optical microstructure for a pupil aperture of 4 mm centered at 6.6 mm from the optical center of the lens element. A computer-implemented method for determining a lens element to be worn by a wearer is also provided.

Abstract: A method implemented by a computer means includes: obtaining a lens design; the lens design representing the variation of optical aberrations as a function of the angular view point; obtaining a set of subjective values representing the sensitivity of the user to a set of optical aberrations; and correlating the set of subjective values and the lens design based on the variation of optical aberrations so as to produce correlation information, advantageously for determining to which extent the lens design is adapted to the user from the correlation.

Abstract: The invention concerns a device (D) dedicated to managing media server resources (MSj) in a communication network (CR), adapted to provide sets of media functions for providing the media parts of the requested services to client communication terminals (T) requesting services, comprising at least one media part, managed by application servers (ASi). Said device (D) comprises storage means (BD) storing data representative of media functions matching the media server identifiers (MSj) and managing means (MG) adapted, upon receiving a message from an application server (ASi) dedicated to a service requested by a client terminal (T) and requiring the provision of a set of media functions for providing a media part of the requested service, to determine the identifier of a media server (MSj) having the resources for offering the requested set, in the storage means (BD), then allocate resources of said media server (MSj) so that the message may be transmitted thereto.