Abstract: The invention relates to a method of retrofitting a vacuum deposition chamber of an apparatus for coating optical substrates, the vacuum deposition chamber comprising a second resistance evaporator crucible. The method comprises installing a resistance evaporator comprising a crucible into the operational vacuum deposition chamber such that the crucible is disposed above the vacuum deposition chamber floor, and such that the second resistance evaporator crucible is closer to the vacuum deposition chamber floor than the installed crucible.

Abstract: A lens holder assembly (49) and method of using the lens holder assembly (49) to mark an ophthalmic lens (3) is provided. The lens holder assembly (49) comprises a stem (61) having a central axis and a first opening (5) extending along the central axis of the body (65), a second opening (7) integrated within the stem (61) such that the second opening (7) is substantially parallel to the first opening (5), and at least one illumination source positioned within the second opening (7). The illumination source is capable of emitting light through the second opening (7) for illuminating at least a portion of an ophthalmic lens (3). At least a portion of the lens (3) is placed over the first opening (5). Suction is applied to the lens (3), and a marking is applied to a surface of the lens (3).

Abstract: The invention relates to an optical article comprising a substrate coated with an abrasion and scratch resistant coating composed of a lower layer and an upper layer that do adhere to each other, the upper layer and the lower layer being layers of cured upper and lower layer compositions, said upper layer composition comprising at least one organosilane, or a hydrolyzate thereof, of formula RnYmSi(X)4-n-m and at least one compound, or a hydrolyzate thereof, of formula M(Z)x, the following ratio being lower than 2.

Abstract: A method is presented herein that involves mixing a self-healing coating solution, a dispersion of colloidal nanoparticles, and at least one of a solvent or a surfactant, to obtain a composition, wherein the composition is capable of being cured into a coating that is transparent to visible light. An ophthalmic lens product obtained by this method is also presented herein.

Abstract: A head mounted device having a frame to be worn on a wearer's head, at least one camera mounted on the frame and arranged to acquire images of the environment around the wearer when the frame is worn by the wearer, a audio source identification module arranged to identify at least one audio source in the environment around the wearer from the acquired images of the environment around the wearer, and an audio acquisition module configured to acquire an audio signal corresponding to an audio source identified by the audio source identification module.

Abstract: Systems and methods for providing identification factors for an individual wearer. Some or all of the identification factors when within a predetermined value provide a prescription and corrective ophthalmic lenses for a selected individual wearer, the corrective ophthalmic lens having at least one correction that is to the nearest 0.20 diopter, or is in a range between about the nearest 0.01 diopter and about the nearest 0.20 diopter. The prescription and corrective ophthalmic lenses are obtained by at least first analysis performed with a first instrument, a second analysis performed with a second instrument, and a third analysis performed with a third instrument, in which each instrument is different, and each analysis is different.

Abstract: A method for determining an optical performance parameter of a head mounted display device adapted for a wearer includes a head mounted display device providing step, during which a head mounted display device adapted for a wearer is provided, an optical measurement device providing step, during which an optical measurement device is provided that includes an entrance pupil and a sensor receiving light through the entrance pupil, a positioning step, during which the optical measurement device and the head mounted display device are positioned so that the position of the entrance pupil of the optical measurement device corresponds to the position of the pupil of the wearer when wearing the head mounted display device, an optical performance parameter determining step during which at least one optical performance parameter of the head mounted see-through display device is determined based on the data measured by the optical measurement device.

Abstract: A method for determining a pair of ophthalmic lenses adapted to a wearer, the method including: a wearer data providing, during which wearer data including at least an indication of the distortion dominant eye of the wearer and an indication of the prescription of the wearer are provided; an ophthalmic lenses determining, during which a pair of ophthalmic lenses adapted to the wearer is determined based at least on the wearer data.

Abstract: A wearing detection module configured to be fixed on a spectacle frame element of a smart spectacle frame, the spectacle frame element including a first surface configured to face the wearer when using the smart spectacle frame and a second surface opposed to the first surface, and the wearing detection module including a pair of sensors configured to measure one parameter indicative of the distance between the spectacle frame element and the wearer, one sensor is arranged on the first surface and the other one is arranged on the second surface, and a processing unit configured to receive data indicative of the parameter sensed by each sensors and to determine a wearing data indicative of the use by the wearer of the smart spectacle frame based on the received data.

Abstract: A computer implemented method for determining an ophthalmic lens for providing to a wearer a comfortable vision when looking at electronic displays. The method includes: a wearer near vision electronic display use determining to determine at least an electronic display the wearer intends to use in a near vision situation; a wearer intermediate vision electronic display use determining to determine at least an electronic display the wearer intends to use in an intermediate vision situation; an usage priority rank determining to determine an usage priority rank between the near vision electronic display during the wearer near vision electronic display use determining and the intermediate vision electronic display during the wearer intermediate vision electronic display use determining; an ophthalmic lens determining to determine an ophthalmic lens from the at least one near vision electronic display or the at least one intermediate vision electronic display and the usage priority rank.

Abstract: A method for customizing a mounted sensing device including a first set of similar or identical sensors having different location and/or orientation, each sensor configured to measure at least one first parameter relating to a wearer of the mounted sensing device, the method including: a sensor selecting during which at least one of the sensors is selected to be used to measure the at least one first parameter, wherein the at least one selected sensor is selected among the first set of similar or identical sensors based on wearer data indicative of morphology of the wearer, and based on their respective location and/or orientation such that the selected at least one sensor is a most appropriate for the wearer and/or for measuring the at least one first parameter.

Abstract: A method for determining an ophthalmic lens having unwanted astigmatism, the ophthalmic lens being adapted to a wearer, the method including: a wearer prescription data providing during which wearer prescription data indicative of an ophthalmic prescription of the wearer are provided; a wearer focal data providing during which wearer focal data indicative of the wearer preferred image focal plan are provided; an ophthalmic lens determining during which the ophthalmic lens is determined based on the prescription of the wearer and the wearer focal data to reduce impact of unwanted astigmatism of the ophthalmic lens for the wearer.

Abstract: A method and system for manufacturing an optical article is provided. The method may comprise providing at least one ophthalmic lens substrate having a surface; applying at least one conductive coating on at least a portion the ophthalmic lens substrate; and electroplating the ophthalmic lens substrate to form a plating layer that is in a contacting relationship with the conductive coating of the optical article. Other layers may also be applied.

Abstract: A method, implemented by computer means, for adapting the sensorial output mode of a sensorial output device, for example a head mounted sensorial output device, to a user of the sensorial output device, the method comprising: a user attentional availability data providing step, during which user attentional availability data indicative of the attentional availability of the user are provided, a user sensorial perception threshold determining step during which a sensorial perception threshold of the user is determined based on the user attentional availability data, and an sensorial output mode adapting step during which the sensorial output mode of the output device is adapted based on the user attentional availability data and the user sensory perception threshold.

Abstract: The present invention relates to an electrochromic composition comprising at least one reducing compound and at least two oxidizing compounds, said at least two oxidizing compounds having similar oxydo-reduction potentials. More specifically, said at least two oxidizing compounds are selected from viologen derivatives. Said composition can be used as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.

Abstract: Disclosed is a machining method by turning at least one surface of an ophthalmic lens, using a turning machine having at least one geometrical defect. The method includes a step (101-104) of determining a turning configuration for machining by turning the at least one surface of the ophthalmic lens, the turning configuration including turning parameters and machine defects parameters associated to the turning parameters.

Abstract: A process for applying a film structure onto a lens blank is improved by implementing a wedge piece when the film structure is pressed against the lens blank using a resilient cushion. The wedge piece forces the film structure to conform more tightly to the lens blank within a depression track existing on said lens blank. Then, the lens blank assembled with the film structure has a final optically useful area which is increased.

Abstract: Systems and methods for providing identification factors for an individual wearer. Some or all of the identification factors when within a predetermined value provide a prescription and corrective ophthalmic lenses for a selected individual wearer, the corrective ophthalmic lens having at least one correction that is to the nearest 0.20 diopter, or is in a range between about the nearest 0.01 diopter and about the nearest 0.20 diopter. The prescription and corrective ophthalmic lenses are obtained by at least first analysis performed with a first instrument, a second analysis performed with a second instrument, and a third analysis performed with a third instrument, in which each instrument is different, and each analysis is different.

Abstract: A method for dyeing a transparent article made of a polymeric substrate with gradient tint comprising: a) a first step of photodegrading the polymeric substrate (1) of the transparent article, by irradiation (3) of at least one first surface of the article to UV radiations to produce a gradiently photodegraded surface layer of the polymeric substrate, and b) a second step of dyeing said first face of the article with a dyeing agent so as to diffuse said dyeing agent into the gradiently photodegraded surface layer of the polymeric substrate.

Abstract: The present invention relates to a process of physical vapor deposition of a material layer on surfaces of a plurality of substrates (11), wherein:—the plurality of substrates (11) are arranged on a dome (12) which rotates according to a dome rotation axis (300);—the material to be deposited is vacuum evaporated thanks to an energy beam from a target (13);—the energy beam interacts with a beam impact surface of the target chosen within the list consisting of a part of a main surface (15) and a part of an edge (14) of the target and wherein the material diffuses from the target to the substrates around a main diffusion axis (100) which intersects the dome (12) at an intersection point, I; and—the angle ? between the dome rotation axis (300) and the main diffusion axis (100) is chosen within the ranges of +5° to +40° or ?5° to ?40°.