Abstract: A device for evaluating the performance of visual equipment for a wearer. The device includes at least one input adapted to obtain virtual tests to be performed with the equipment, each test including at least one scenario combined with at least one virtual model of the wearer, defining how a visual task including a sequence of fixation points is to be carried out by the model in an environment defined by a description of shapes and positions of elements to be viewed by the model, at least one processor configured for selecting at least one test, based on at least one personalized real or simulated wearer activity profile representing usage of the equipment by the wearer, and evaluating the performance of the equipment with which the selected test is performed by the model by computing for one or more fixation points at least one performance criterion generated for the task.

Abstract: A device for evaluating visual equipment models corresponding to real visual equipments. The device includes at least one input adapted to obtain parameters including a prescription for a given human wearer of any one of the real visual equipments, a set of ophthalmic lenses pre-selected on the basis of those parameters, at least one processor configured, for each pre-selected ophthalmic lens, to obtain a visual equipment model including a virtual ophthalmic lens defined by the same characteristics as the pre-selected ophthalmic lens, obtain a wearer model from the parameters, the visual equipment model cooperating with the wearer model, obtain an environment and visual task model including a sequence of points to be looked at by the wearer model, and evaluate a performance of the visual equipment model worn by the wearer model and combined with the environment and visual task model.

Abstract: A method implemented by a computer for determining a single vision ophthalmic lens that is adapted to a wearer, the method including a wearer prescription data providing step during which wearer prescription data indicative at least of the prescribed optical power of the wearer are provided, a wearing data providing step during which wearing data indicative of the wearing parameters of the single vision ophthalmic lens by the wearer are provided, a single vision ophthalmic lens determining step during which the single vision ophthalmic lens is determined so that in wearing conditions corresponding to the wearing parameters, the single vision ophthalmic lens provides to the wearer the prescribed optical power in at least a first gazing direction when gazing at a first distance and second gazing direction when gazing at a second distance, wherein the first and second distances are different and the first and second gazing directions are different.

Abstract: A method for determining at least one optimized visual equipment to be worn by a human wearer includes: obtaining a wearer model as a virtual model of the human wearer; obtaining a model of at least one environment for which the at least one optimized visual equipment is to be determined, the at least one environment comprising tridimensional positions of objects to be viewed by the wearer model; determining at least one evaluation function related to the visual equipment, as a function of at least optical performance of the visual equipment and postural performance of the wearer model in the model of the at least one environment; optimizing the at least one evaluation function, so as to determine the at least one optimized visual equipment.

Abstract: A method for determining an ophthalmic lens adapted to a wearer, the method including: receiving wearer data including at least the ophthalmic prescription of the wearer; receiving a set of object points associated with target optical performances based on the wearer data; determining an ophthalmic lens adapted to the wearer, the ophthalmic lens providing optical performances, for light rays propagating from the set of object points to the center of rotation of the eye of the wearer passing through the ophthalmic lens, the closest to the target optical performances.

Abstract: It is proposed a method for defining a design of an ophthalmic tinted lens provided with a turquoise blue ophthalmic filter. It is provided at least one optical parameter value that is prescribed with reference to a clear ophthalmic lens. At least one non-null optical power value is determined from said at least one prescribed optical parameter value. At least one reduction value is obtained. At least one reduced optical power value is calculated in function of said at least one non-null optical power value and said at least one reduction value. The ophthalmic tinted lens design is defined on the basis of said at least one reduced optical power value. Methods for defining a design of a first and a second ophthalmic tinted lens are also proposed. It is also proposed a corresponding ophthalmic tinted lens.

Abstract: A device for determining a head freedom area of an optical lens adapted for a wearer looking at a specific point in a scene through the optical lens comprises at least one input adapted to obtain optical lens data representing the optical features of an optical lens, to obtain wearing data and fitting data representative of the wearing conditions and fitting parameters of the optical lens, and to obtain a specific threshold value for an optical performance criterion; and at least one processor configured for determining the head freedom area that corresponds to the head positions of the wearer that provide optical performances greater than or equal to the specific threshold value when the wearer is wearing the optical lens in given wearing conditions upon given fitting parameters and looking at the specific point in the scene through the optical lens.

Abstract: The invention relates to a method for determining a progressive ophthalmic device for personalised visual compensation for an individual, according to which the following steps are performed: a) in a first data acquisition phase, determining at least at a first time preceding the appearance of the presbyopia of this individual, at least one value of at least one individual parameter of said individual, and recording each value of the individual parameter of the wearer in a database, in correlation with an associated temporal indicator, b) in a second determination step of the progressive ophthalmic device for personalised visual compensation, determining a desired value of at least one geometric or optical parameter of said progressive ophthalmic device for visual compensation, taking account of said at least one value of the individual parameter determined in step a) and the associated temporal indicator.

Abstract: A method for determining an ophthalmic lens adapted to a wearer, including: providing wearer data including at least an indication of a prescription of the wearer; providing a locomotion scenario including at least an input locomotion parameter and visual environment data indicative of a visual environment, the locomotion parameter including at least movement data indicative of at least translation movements of the wearer's head; providing an output parameter of a locomotion parameter of the wearer or an optical parameter of the ophthalmic lens having an impact on a locomotion parameter of the wearer; determining an ophthalmic lens adapted to the wearer based at least on the wearer data to have the output parameter as close as possible to the target value of the output parameter when carrying out the locomotion scenario using the ophthalmic lens, wherein the output parameter is retinal flow of the wearer.

Abstract: A progressive ophthalmic lens adapted to a wearer in given wearing conditions having an addition and fulfilling an acuity performance criterion determined by: defining a set of at least three different vision distances including at least a first vision distance greater than or equal to 4 m, a second vision distance greater than or equal to 0.6 m and smaller than or equal to 2 m and a third vision distance smaller than or equal to 0.5 m, each vision distance being associated with an acuity loss threshold value and an acuity area threshold value, providing an acuity model defining acuity loss as a function of lens power and resulting astigmatism, determining of each vision distance using the acuity model the area of gaze directions for which the acuity loss is below the associated acuity loss threshold value.

Abstract: Disclosed is a hoist apparatus including: an electric motor, and a control box that can be electrically powered by a power supply, the control box including at least an electronic control circuit, an electrical wiring and an external casing forming a box of the control box, the external casing including at least sidewalls and a removable lid closing the box, the control box controlling the operations of the electric motor thanks to the electrical wiring connected to the electronic control circuit, to the power supply and to the electric motor, and a monitoring device, wherein the monitoring device is an insert of the box, the monitoring device being arranged within an enclosure, the enclosure being an added part of the box or being an exchanged part of the box and wherein the monitoring device is connected to the electrical wiring.

Abstract: A method for determining an ophthalmic lens adapted to a wearer, the method including: receiving wearer data including at least the ophthalmic prescription of the wearer; receiving a set of object points associated with target optical performances based on the wearer data; determining an ophthalmic lens adapted to the wearer, the ophthalmic lens providing optical performances, for light rays propagating from the set of object points to the center of rotation of the eye of the wearer passing through the ophthalmic lens, the closest to the target optical performances.

Abstract: A method for determining an optical design criterion for designing an optical lens adapted to a sport practice, the method including: defining an evaluation axis for evaluating sensory/motor/cognitive requirement of a sport practice, for each of a plurality of sports; attributing a score to the sport practice on each evaluation axis; determining clusters of sports in which practices have similar score; determining at least one visual need corresponding to each cluster of sports; determining, for each cluster, at least one optical design criterion as a function of the associated visual need; and storing in a memory a record for each cluster, along with each optical design criterion associated with the cluster.

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 for determining an optical system of a personalized progressive lens for a given wearer including: a) providing a mean direction of gaze determined for the wearer in a reference frame tied to the head of the wearer; b) determining a target value for at least one optical design parameter as a function of the mean direction of gaze determined in a); c) calculating the optical system of the progressive lens by an optical optimization procedure on the basis of target values, wherein the target value of each optical design parameter as a function of the mean direction of gaze determined in b) is a target value.

Abstract: A method implemented by a computer for determining a single vision ophthalmic lens that is adapted to a wearer, the method including awearer prescription data providing step during which wearer prescription data indicative at least of the prescribed optical power of the wearer are provided, a wearing data providing step during which wearing data indicative of the wearing parameters of the single vision ophthalmic lens by the wearer are provided, a single vision ophthalmic lens determining step during which the single vision ophthalmic lens is determined so that in wearing conditions corresponding to the wearing parameters, the single vision ophthalmic lens provides to the wearer the prescribed optical power in at least a first gazing direction when gazing at a first distance and second gazing direction when gazing at a second distance, wherein the first and second distances are different and the first and second gazing directions are different.

Abstract: A method is implemented by a computer for modifying a non-dioptric parameter of an optical system including a first and a second surface. The method includes a modifying step during which the first surface and second surface are modified so as to obtain a modified optical system such that the dioptric function of the modified optical system is substantially the same as the dioptric function of the optical system.

Abstract: Disclosed is a method for comparing first and second ophthalmic lenses, including: a first optical function providing step, during which a first optical function of a first ophthalmic lens LI is provided, the first optical function including at least a first set of values of an optical parameter Gj, the values of the first set of values corresponding to the values of the optical parameter of the first ophthalmic lens in a set of gaze directions, a similar second optical function providing step directed to a second ophthalmic lens L2, a subsets determining step, during which at least a first and a second subset of gaze directions are selected, a comparison step for each subset of gaze directions, an assignment step, during which a subset status is assigned to each subset of gaze directions, the subset status being selected among at least three levels.

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: The invention relates to a method for determining a progressive ophthalmic device for personalised visual compensation for an individual, according to which the following steps are performed: a) in a first data acquisition phase, determining at least at a first time preceding the appearance of the presbyopia of this individual, at least one value of at least one individual parameter of said individual, and recording each value of the individual parameter of the wearer in a database, in correlation with an associated temporal indicator, b) in a second determination step of the progressive ophthalmic device for personalised visual compensation, determining a desired value of at least one geometric or optical parameter of said progressive ophthalmic device for visual compensation, taking account of said at least one value of the individual parameter determined in step a) and the associated temporal indicator.