The invention relates to a method for determining at least an optical feature of an ophthalmic lens to be placed in a frame for vision correction of a subject, comprising: a) measuring (100) a value of a fitting parameter linked to the subject and/or the frame or a value of a dioptric parameter of the subject, thanks to a measurement process, b) providing (200) a level of uncertainty of said value measured in step a) depending on said measurement process, c) determining (400; 510; 620; 640) said optical feature of said ophthalmic lens by taking into account said value measured in step a) and said level of uncertainty provided in step b).

Disclosed is a method for determining at least one fitting parameter of an optical equipment configured to equip a user, the method including: providing an imaging device; taking a plurality of images of the user equipped with the optical equipment when the user takes successively at least two distinct positions; among the at least two distinct positions, identifying at least one period when the user is in a favorable position to determine the at least one fitting parameter, wherein the at least one period is manually identified by an operator; recording the at least one identified period and at least one image taken during the at least one identified period; determining the fitting parameter on the basis of the at least one recorded image.

Method for designing a pair of ophthalmic lenses and device for optical measurements. The method comprises: determining a distance and placing an object (100) at said distance; placing a frame (4) of reference on the user; for each eye: keeping it uncovered and covering the other eye; placing in front of the eye a screen (5, 6) with a through hole (520, 620); shifting the position of the hole (520, 620) until the user sees said object (100) looking through the hole (520, 620), so that said object (100) is centred in the field of view available; uncovering both eyes; adjusting the positions of the holes (520, 620), to obtain binocular vision; and designing each lens (510, 610) according to said position. The device (1) comprises a frame (2) to which, for each eye, a first plate (51, 61) having a vertical groove (53, 63) and a second plate (52, 62) having a horizontal groove (54, 64) are attached and can be shifted. So that, when the grooves overlap, a pinhole (55, 65) is formed.

A system, method, and computer readable medium for determining at least one feature of at least one lens mounted in a spectacle frame. The system includes a non-point light pattern generating device configured to generate a predefined non-point light pattern, and arranged to have the predefined non-point light pattern reflected on the at least one lens, an image acquisition device configured to acquire an image of the spectacle frame including an image of the reflected non-point light pattern, and a processing unit configured to determine at least the contour of the at least one lens in function of at least one feature of the image of the reflected non-point light pattern.

A method of cleansing a contact lens using an automated contact cleansing device configurable to perform a plurality of cleansing cycles having different characteristics, the method comprising: storing a cleansing solution at a storage unit; transferring, at a first transfer line, the solution from the storage unit to a reservoir; housing the solution in the reservoir for at least one cycle; transferring, at a second transfer line, the solution from the reservoir to a drain; collecting data relating to a condition of one or more components of the device; transmitting at least one of the condition of the one or more components of the device, and diagnostic information relating to the device; storing instructions to perform at least one of the cycles; and executing the instructions to control at least one of the first transfer line, the second transfer line, and the housing for the at least one cycle.

Method for the assembly of elastic hinges on an eyeglass frame, wherein each elastic hinge has a first and a second articulation elements hinged around a hinging axis. The method provides for a first step of inserting the first articulation element in a first seat of a temple and, subsequently, a second step of inserting the second articulation element in a second seat of an end piece of the eyeglasses. In the first insertion step, the second articulation element is placed perpendicular to the first articulation element with the hinging axis placed at a first distance from the temple. Before the second insertion step, a tensioning step is provided in which the second articulation element is rotated up to being arranged parallel to the first articulation element, bringing the hinging axis to a second distance from the temple that is greater than the first distance.

Provided is a process for generating specifications for lenses of eyewear based on locations of extents of the eyewear determined through a pupil location determination process. Some embodiments capture an image and determine, using computer vision image recognition functionality, the pupil locations of a human's eyes based on the captured image depicting the human wearing eyewear.

A head-mounted wearable device (HMWD) with a form factor of eyeglasses incorporates hinges between a front frame and temples. The hinges provide a fully enclosed passage for a flexible printed circuit (FPC). The FPC allows electrical connectivity between devices in the front frame and in the temple. The hinge includes a cam device that provides a biasing force that allows the temples to remain in one of four configurations: closed, transit, neutral, and maximum neutral. When in the transit configuration the biasing force provided by the cam device tends to move the temples towards the closed configuration. When in the maximum neutral configuration the biasing force provided by the cam device tends to move the temples towards the neutral configuration. During use, this biasing of the temples provides a gentle clamping force that assists in maintaining the HMWD on the user's head.

A method comprises: disposing a physical landmark upon an eye of a user; capturing at least one image of the eye of the user with an image sensor while the eye is illuminated, wherein the image includes an image of the physical landmark and at least one other point on the surface of the eye outside of the cornea; processing the at least one image to obtain at least one metric of the eye of the user; and determining, based on the at least one metric, at least one parameter of a daily use contact lens to be worn on the eye of the user.

A protective cover for an eyewear including a lens cleaning system and a frame. The protective cover includes a first end portion, a second end portion, a lens opening configured to allow access to a lens of the eyewear, an outer side, and an inner side. The inner side includes a shape that corresponds to a shape of at least a first side of the frame of the eyewear and at least a portion of the lens cleaning system. The inner side may also include a first cleaning system receiver configured to cover a first portion of the lens cleaning system, and a second cleaning system receiver configured to cover a second portion of the lens cleaning system. The protective cover encloses a first side of the frame and the lens cleaning system. The protective cover reduces a failure of the lens cleaning system due to debris.