Abstract: A method of manufacturing an ophthalmic lens having at least one optical function includes: a step of additively manufacturing a complementary optical element by depositing a plurality of predetermined volume elements on a predetermined build support, the complementary optical element being configured to provide at least a part of the optical function of the ophthalmic lens, wherein the build support includes at least one added value or adhesive configured to provide to the ophthalmic lens at least one added function. An ophthalmic lens including a build support and a complementary optical element as well as an ophthalmic lens obtained by such a manufacturing method.

Abstract: A computer implemented method for determining a level of certainty of a patient’s response to a stimulus perception of a subjective medical test, the method including detecting at least one physiological signal from the patient while the patient is providing a response to the stimulus perception, determining the level of certainty of a patient’s response to the stimulus perception from the at least one physiological signal, the at least one physiological signal being an input data to a machine learning model trained based on a set of training data, the set of training data comprising at least one physiological signal associated to a level of certainty of a patient’s response, the determined level of certainty being the output of the trained machine learning model.

Abstract: This computer-implemented method for providing an automated prediction of a change of a state of fatigue of a subject carrying out a visual task involving any kind of visual content comprises: providing a plurality of input data, relating to the subject, to a fatigue state change predictive model, wherein the plurality of input data comprises at least one subjective measurement relating to the subject and/or at least one objective measurement relating to the subject and/or at least one other subject-related datum; obtaining, by a processor implementing the model, a value representing a level of change of the state of fatigue of the subject.

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: A method and system for image display with a head-mounted device, which use a seethrough tunable diffractive mirror, such as a see-through tunable holographic mirror or seethrough tunable LCD array mirror, which mirror is useful in providing augmented reality.

Abstract: Disclosed are methods (100) for preparing a laminate incorporable to a surface of an optical lens and methods (500) for incorporating the laminate on the surface of the optical lens. The laminate is prepared by laminating an optical film (202a, 202b), such as a polycarbonate film, on each side of a functional film using an adhesive that is capable of preventing optical defects in the laminates during a thermoforming process and an injection molding process. The adhesive has optimal thermomechanical properties that include that the optical film (202a, 202b) coated with said adhesive has a modulus by compression greater than 6×106 Pa, and preferably greater than 2×108 Pa at a temperature from about 130° C. to 150° C. The laminate is incorporated on the optical lens via thermoforming followed by injection molding with overmolding technology.

Abstract: The present invention proposes a polymer composition of manufacturing ophthalmic lens by polymerization of polymerizable composition wherein the shrinkage phenomenon is minimized. The polymerizable composition comprised two different categories of monomers which are able during crosslinking to control and limit said chemical shrinkage. The present invention comprises also ophthalmic lens obtained from said polymer composition using a manufacturing process of casting or additive manufacturing.

Abstract: Certain example embodiments of this invention relate to electrochromic devices (100, 1500), assemblies incorporating electrochromic devices, and methods of making the same. Highly-durable electrochromic devices include tungsten oxide (e.g., WO3 or other suitable stoichiometry) films (102, 1510) prepared using high-rate bias-enhanced sputter deposition. The sputtering is performed in a low-pressure (e.g., 1 mTorr) environment, and the biasing is very high (e.g., greater than ?400 V, more preferably greater than ?500 V), which causes high energy ion bombardment that in turn leads to partial nanocrystallization of the WO3 matrix, while simultaneously generating the porous microstructure desirable for ionic diffusion.

Abstract: Disclosed is a holding system for supporting a wafer having a first surface, a second surface and a third surface joining the first and second surfaces, and an optical element having a first surface, a second surface and a third surface joining the first and second surfaces, the holding system including: a support including first support unit configured to support the second and/or third surface of the wafer and second support unit configured to support the second and/or third surface of the optical element; a positioning unit configured to position the second surface of the wafer relative to the first surface of the optical element; and a mechanical unit configured to move the first and second support units one relative to the other so as to move the second surface of the wafer and the first surface of the optical element to form an optical system.

Abstract: The present disclosure relates to a method for expanding an image database for evaluation of eyewear compatibility. In particular, the present disclosure relates to a method, comprising receiving a user image, receiving a frame image, processing the received frame image by setting, as transparent, pixels of the received frame image except for an anterior face of the frame, defining, within the processed frame image, a left boundary and a right boundary of the anterior face of the frame, the left boundary and the right boundary corresponding to the left eye and the right eye, respectively, receiving a filter image, processing the received filter image by setting, as transparent, pixels in the received filter image outside the frame based on the left boundary and the right boundary, merging the processed frame image and the processed filter image, and overlaying the merged image onto the received user image.

Abstract: A film structure including at least a functional film, a carrier layer, and a counter-force liner, the functional film being in between the carrier layer and the counter-force liner. The carrier layer and the counter-force liner are larger than the receiving area, and the film structure includes a fastener adapted to fasten, directly or indirectly, the counter-force liner to the carrier layer at least on a portion of a zone outside the functional film. It is also proposed a corresponding machine, optical device and method for forming a functional film intended to be laminated on an optical article.

Abstract: An optical element is configured to be worn in front of an eye of a wearer. The optical element has two main surfaces and includes at least one holographic diffusive element having diffusive properties resulting from spatial variations of refractive index of said holographic diffusive element. The spatial variation of refractive index is greater than 0.001 at at least one given wavelength, on a distance less than 30 ?m. An optical equipment includes the optical element and methods for recording a holographic medium onto an optical lens.

Abstract: A system for determining a rounded value of an optical feature of an ophthalmic lens including determining a first test value and a first variation increment, performing a first trial of said subjective test wherein two first different optical situations are determined based on at least the first test value, determining a second test value based on the first test value, on the first variation increment and on the result of the first trial, performing a second trial of said subjective test wherein two second different optical situations are determined based on at least the second test value, determining an intermediary value based on the result of the first trial and on the result of the second trial, and determining said rounded value by rounding said intermediary value to a reference value, said rounding modifying the dioptric correction of said ophthalmic lens by less than a predetermined basic dioptric value.

Abstract: A method for evaluating the visual acuity of a person using a mobile device having at least a front camera and a screen, the method including a user positioning step during which the user of a mobile device positions himself in front of a mirror at a predefined distance d/2, a mobile device positioning step during which the mobile device is positioned with the front camera of the mobile device facing the mirror, a distance measuring step during which a distance d between the front camera of the mobile device and a virtual image of the mobile device in the mirror is measured, a displaying step during which the screen of the mobile device displays optotypes, and an evaluation step during which the visual acuity of the user is evaluated.

Abstract: A monitoring equipment including an eyewear that includes a frame, at least one lens that is fixed to the frame and that is able to change the natural evolution of an optical deficiency, a wearing sensor able to determine if the eyewear is being worn by a wearer, and a processing unit that is programmed to acquire the data determined by the wearing sensor, deduce therefrom a parameter relative to the length of time the wearer has worn the eyewear during a predetermined period, and compare said parameter with at least a predetermined datum to determine a level of efficiency of the optical deficiency treatment.

Abstract: An ophthalmic lens comprising a transparent polymer matrix and core shell nanoparticles which are dispersed in the transparent polymer matrix, wherein the core of core shell nanoparticles results from polymerization of a composition comprising nanoparticle core precursors and at least one photochromic compound, and the shell of core shell nanoparticles comprises a mineral compound.

Abstract: This disclosure includes injection molds for reducing cycle times and related methods. Some molds include first and second mold portions movable relative to one another from an open position to a closed position in which each of one or more recesses of the first mold portion cooperates with a respective one of one or more recesses of the second mold portion to define a chamber. Each of the chamber(s) includes a first cooling body coupled to the first mold portion, a second cooling body coupled to the second mold portion, and first and second inserts removably coupled, respectively, to the first and second cooling bodies such that the inserts cooperate to define a mold cavity within the chamber that is configured to receive a thermoplastic material. Each of the cooling bodies has an inlet, an outlet, and a fluid cavity in fluid communication with the inlet and the outlet.

Abstract: A pair of ophthalmic lenses adapted for a wearer whose prescriptions for the left and right eye are different by at least 0.25D in cylinder, the rear surfaces of both ophthalmic lenses having a substantially identical shape.

Abstract: The invention relates to an item comprising a substrate having at least one main surface coated with a multilayer interferential coating comprising at least one layer with a refractive index higher than 1.65 and at least one layer with a refractive index lower than, or equal to, 1.65, at least one of the layers of the interferential coating being an organic-inorganic layer that has been deposited in a vacuum environment and has a thickness of at least 30 nm, said interferential coating having a thickness of at least 450 nm and/or at least 8 layers.