A method, system, and non-transitory computer readable medium for determining optical article feasibility are provided. The method includes acquiring a first input indicative of optical criteria associated with a lens via a user interface, acquiring a second input indicative of a lens selection via the user interface, identifying one or more frames, and determining whether each frame of the one or more frames and the lens selection are physically compatible by fit simulation performed based on three dimensional cutout data determined based on at least the optical criteria. A feasibility indication is provided to a user via the user interface for each of the one or more frames based on the determination.

A contact lens package includes a silicone hydrogel contact lens, a packaging container composed of a polypropylene, and a packaging solution containing a nonionic surfactant, the nonionic surfactant including a linear alkyl moiety having 12 or more carbon atoms and an oxyethylene moiety, the average addition mole number of oxyethylene being 30 or more per mole of the nonionic surfactant.

A contact lens package includes a silicone hydrogel contact lens, a packaging container composed of a polypropylene, and a packaging solution containing a nonionic surfactant, the nonionic surfactant including a linear alkyl moiety having 12 or more carbon atoms and an oxyethylene moiety, the average addition mole number of oxyethylene being 30 or more per mole of the nonionic surfactant.

A contact lens cleaner includes a power supply base (2), a cleaning base (1), and a cleaning mechanism (3). The cleaning base (1) is detachably connected with the power supply base (2). At least one cleaning recess (103) is provided in the cleaning base (1). The cleaning mechanism (3) includes a power supply unit (302) disposed in the power supply base (2) and a plurality of electrodes (301) extending into the cleaning recesses (103) through a bottom of the cleaning recess (103) and electrically connected with the power supply unit (302). The power supply unit (302) includes a circuit board (303), a power supply (304) and a plurality of conductive sheets (306) disposed on the circuit board (303). A plurality of electrode connectors (305) are disposed through a cleaning base mounting groove (201) at the top of the power supply base (2) in a sealed manner. One end of each of the electrode connectors (305) electrically connected with one of the electrodes (301) is elastically retractable, and the other end of each of the electrode connectors (305) electrically connected with one of the conductive sheets (306) is not elastically retractable. The contact lens cleaner can effectively prevent liquid leakage, is convenient to carry, and is easy to use.

A design system generates a design for an eyewear frame customized for a user. The eyewear frame provides audio content to the user. The design system captures anthropometric data of the user. Using machine learning techniques, the design system determines features of the user from the anthropometric data and generates a three dimensional (3D) geometry of the portion of the user's head. A design for the customized eyewear frame is generated based on the 3D geometry of the portion of the user's head. The design of the customized eyewear frame includes design parameters that describe a shape of a coupling element that ensures the eyewear frame is customized to the user's head.

An eyeglass frame shape measurement device measures a shape of an eyeglass frame. The eyeglass frame shape measurement device includes a light projecting optical system that has a light source and emits measurement light from the light source toward a groove of a rim of an eyeglass frame, a light receiving optical system that has a detector and causes the detector to receive reflected light of the measurement light emitted toward the groove in the rim of the eyeglass frame by the light projecting optical system and reflected by the groove of the rim of the eyeglass frame, an acquisition section that acquires a cross-sectional shape of the groove of the rim of the eyeglass frame on the basis of the reflected light received by the detector, and a luminance control section that controls a luminance level of the reflected light to be received by the detector.

A cleaning device for a pair of spectacles, comprising a housing defining a cleaning space, a mounting part for holding the pair of spectacles inside said space, sets of opposing cleaning elements for cleaning opposing faces of glasses of the pair of spectacles, and a drive unit for moving the pair of spectacles and the cleaning elements relative to each other during a cleaning operation. The sets of opposing cleaning elements are positionable relative to each other between an inactive position, that is configured to have at least one of the sets of the cleaning elements lie spaced from at least one of the opposing faces of the respective glasses, and a cleaning position, that is configured to have the sets of opposing cleaning elements lie against both opposing faces of the respective glasses. Each of the cleaning elements is bar-shaped, wherein, in the cleaning position, longitudinal axis of the bar-shaped cleaning elements extend in one or more directions that are substantially parallel to the opposing faces of the glasses, and wherein the drive unit is configured to translate the pair of spectacles and the bar-shaped cleaning elements relative to each other substantially parallel to the opposing faces of the glasses while rubbing or wiping them clean.

In a method for checking the centration of at least one spectacle lens, the spectacle lens is arranged in a field of capture of an image capturer; at least one image of the spectacle lens is captured by means of the image capturer; and positions of functional engravings of the spectacle lens in the captured image are determined. Furthermore, at least one lens contour of the at least one spectacle lens in the captured image is determined and the centration of the spectacle lens is checked taking into account the determined positions of the functional engravings, the determined lens contour and a known, wearer-dependent target geometry of the centration.

Method for determining a parameter of an optical equipment, the method comprising: an optical equipment positioning step, during which an optical equipment comprising a pair of optical lenses mounted on a spectacle frame is positioned in a first position, a portable electronic device positioning step, during which a portable electronic device comprising an image acquisition module is positioned in a second position determined and/or known relatively to the first position so as to acquire an image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position, a parameter determining step, during which at least one optical parameter of the optical equipment is determined based on the image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position.

A method and device for determining an optical equipment adapted to a wearer and comprising an optical lens and a spectacle frame, the method including providing data relative to the wearer comprising optical requirements of the wearer, providing an optical cost function related to an optical function parameter of the optical lens and being defined based at least on part of the data relative to the wearer, providing a comfort cost function related to a comfort parameter, providing a mechanical interaction cost function that varies as a function of a geometrical parameter of spectacle frame and a geometrical parameter of optical lens, and determining an optical equipment that minimizes a global cost function, the global cost function being a weighted sum of all cost functions.