• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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    • 专利摘要:
    The invention relates to a method of fitting a predetermined spectacle frame, for use by a given wearer, comprising the following steps: b) determining at least a partial modeling of the wearer's head, with, in the same reference, at least one model of a part of the nose, a model of a part of the ears, c) a simulation of the positioning of the frame on the head of the wearer, by superimposing on the modeling of the head (TS) of the carrier, the corresponding zones of said frame (10) or a modeling thereof, d) determining from this superposition, the necessary deformation of the frame to obtain a fitting of the frame on the head of the frame. carrier conforming to at least one predetermined adjustment criterion.
    公开号:FR3016050A1
    申请号:FR1450017
    申请日:2014-01-02
    公开日:2015-07-03
    发明作者:Ahmed Haddadi；Sarah Marie
    申请人:Essilor International Compagnie Generale dOptique SA；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD TO WHICH THE INVENTION RELATES The present invention relates to a method of fitting a predetermined spectacle frame for use by a given wearer. BACKGROUND ART The optician usually makes the adjustment of the frame directly on the wearer's face, manually, according to the indications of comfort provided by the wearer and according to empirical know-how.
    [0002] This adjustment is long and tedious for the optician and the wearer, and its quality, important for visual correction, depends on the operator and the care given to this operation. It is often performed upon receipt of the finished pair of spectacles, i.e. in which the ophthalmic lenses have been mounted.
    [0003] This process does not always allow the realization of pairs of glasses whose optical and mechanical characteristics are precisely adapted to the wearer. Document US4762407 discloses a method of determining the characteristics of a frame so that it is perfectly adapted to the wearer's face, which constitutes a possible answer to this problem. In the method proposed by this document, the ideal placement in front of the eyes of the wearer of the ophthalmic lenses adapted to the visual correction of the wearer is firstly determined. Then the geometrical characteristics of the frame allowing this ideal placement of the ophthalmic lenses in front of the wearer's eyes are determined according to the shape of the wearer's face. The frame is finally constructed to present the geometric characteristics determined. This method, however, does not allow to adjust a predetermined mount, already assembled, on the face of a wearer, in the absence or in the presence of ophthalmic lenses. OBJECT OF THE INVENTION In order to overcome the aforementioned drawback of the state of the art, the present invention proposes a method for performing an adjustment of a pre-existing eyeglass frame on the wearer's face. More particularly, there is provided according to the invention a method of fitting a predetermined spectacle frame, for use by a given wearer, comprising the following steps: b) determining at least a partial modeling of the wearer's head, with, in the same referential, at least one model of a part of the nose, and a model of a part of the ears, c) a simulation of the positioning of the frame on the wearer's head, by superimposing, on the modeling the wearer's head, the corresponding areas of said frame or a modeling thereof, d) determining from this superposition the necessary deformation of the frame to obtain a fitting of the frame on the head of the carrier conforming to at least one predetermined adjustment criterion. Thus, thanks to the method according to the invention, it is possible to determine the necessary deformation of the bezel mount chosen by the wearer and having a predetermined geometry in order to adjust it on the wearer's head so that this mount of glasses be properly positioned on his face. By "correctly positioned" is meant that the frame rests stably and comfortably on the wearer's face. It is thus considered that the spectacle frame is correctly positioned on the wearer's face when the following conditions are satisfied simultaneously: the circles of the frame are positioned relative to the wearer's eyes so as to offer the widest possible field of vision to bearer, - the eyeglass frame rests on the nose, without slipping and without hurting, with all the necessary stability, - the branches of the eyeglass frame rest on the wearer's ears, without exaggerated compression on the temples, without traction too much strong on the ears. Once this necessary deformation is determined, it is possible to apply it to the spectacle frame. This is preferably done before mounting the ophthalmic lenses in the frame. It is envisaged here only to deform the frame without adding material and remaining within the limits of elastic deformation of the materials, so as to obtain the desired customized frame without damaging it. This method can first be implemented before the manufacture of ophthalmic lenses to be mounted in the frame.
    [0004] The method then makes it possible in particular to adjust the frame to the wearer's face in order to take the necessary measures to manufacture the ophthalmic lenses on the wearer wearing the fitted spectacle frame. The manufacture of ophthalmic lenses is then more precise. Once the ophthalmic lenses are manufactured and mounted in the eyeglass frame, it is possible that the weight of the ophthalmic lenses deforms the eyeglass frame and that it no longer exactly has the adjusted geometry before mounting the ophthalmic lenses. It is then possible to determine the deformation of the frame necessary to adjust the frame provided with ophthalmic lenses on the wearer's face. We then talk about readjustment of the mount. More particularly, the following advantageous variants are envisaged: in step b), modeling of the wearer's head is a numerical modeling, and, in step c), this numerical modeling of the wearer's head is superimposed on , a numerical modeling of the frame, by a numerical calculation; in step b) the modeling of the wearer's head is a physical modeling, and, in step c), the physical modeling of the wearer's head is superimposed on a physical modeling of the frame, by placement real physical modeling of the spectacle frame on the physical modeling of the wearer's head; in step b) the modeling of the wearer's head is a physical modeling, and, in step c), the physical modeling of the wearer's head, the frame itself, is superimposed by the actual placement of this frame of glasses on the physical modeling of the wearer's head. Other non-limiting and advantageous features of the method according to the invention are the following: - prior to step c), a step a) of determination of the modeling of the frame is carried out, with in the same other frame of reference, at least one model of a part of the frame of the frame and a model of part of the branches of the frame; in step c), the model of a part of the bridge of the frame and the model of a part of the nose of the wearer are superimposed, on the one hand, and on the other hand, the model of part of the branches of the frame and the model of part of the wearer's ears; in step b), the physical modeling of the head is carried out at scale 1, using at least one of the following techniques: - techniques resulting from rapid prototyping, - deformable bench that can be motorized or not ; - In step b), the physical modeling of the head is made from a deformable support and a set of inserts on this support; in step b), the physical modeling of the head is selected from among a set of head modelizations previously carried out; In step d), said predetermined adjustment criterion comprises a desired relative position of the branches of the frame relative to the ears of the wearer; in step d), said predetermined adjustment criterion comprises a spacing of the branches of the desired frame as a function of a determined distance between the ears; In step d), said predetermined adjustment criterion consists of an optimization of the contact surface between two plates of the bridge of the frame and the nose of the wearer; in step d), said predetermined adjustment criterion comprises an inclination of the branches of the desired frame; In step a), a model of part of the circles of the frame is furthermore determined; in step b), a model of part of the eyes of the wearer is furthermore determined and in step d), said predetermined adjustment criterion comprises a relative position of the circles of the frame and the eyes of the wearer; in step a), a model of part of the circles 30 of the frame is furthermore determined; in step b), a model of a part of the cheekbones and / or eyebrows of the wearer is furthermore determined, and in step d), said predetermined adjustment criterion comprises a desired minimum distance between the circles of the frame and cheekbones and / or eyebrows of the wearer; in a step e), the user is provided with adjustment instructions for applying to the spectacle frame the deformation determined in step d); in a step f), the deformation determined in step d) is applied to the spectacle frame; the following step is furthermore carried out: g) the corrected relative position of the model of a part of the circles of the frame and the model of part of the wearer's eyes is determined by taking into account the necessary deformation of the frame determined in step d), by means of a numerical simulation similar to that of step c). the following step is furthermore carried out: h) at least one geometric-physiognomic parameter for the implantation of an ophthalmic lens in the frame is determined so that the optical center of the lens comes opposite the corresponding eye of the wearer as a function of said corrected relative position determined in step g). the following step is further carried out: i) at least one optical refraction characteristic of at least one ophthalmic lens to be mounted in this frame is determined as a function of the corrected relative position determined in step g); step b) is carried out on a first site and step d) is carried out on a second site; - the first site is located in any place accessible either physically by the wearer, or on the internet, and the second site is located at an optician or in a spectacle assembly laboratory; after step d), at least one of the following two additional steps is carried out: p) a reference of information on the adequacy between the ability to deform the frame and the necessary deformation of the frame (10) determined in step d), q) a reference information indicating a final expected relative position of the frame on the wearer's head, after adjustment of the frame.
    [0005] DETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT The following description with reference to the accompanying drawings, given as non-limiting examples, will make it clear what the invention consists of and how it can be achieved. In the accompanying drawings: - Figure 1 is a schematic perspective view of a spectacle frame (solid lines) and a partial modeling of the wearer's head (dashed lines); - Figure 2 is a schematic view of above the spectacle frame and the partial modeling of the head of FIG. 1; FIG. 3 is a schematic side view of the wearer's head with the eyeglass frame; FIG. 4 is a schematic front view; of the wearer's head and the spectacle frame of FIG. 3, FIGS. 5 and 6 illustrate a correct fitting of a branch of the eyeglass frame on the ear of the wearer. The object of the invention is to allow a precise and easy adjustment of the frame on the wearer's head, minimizing the intervention of the optician and the wearer.
    [0006] This allows on the one hand, to limit the time spent by the optician to adjust the frames, and on the other hand, to make the adjustment process less tedious for the wearer. In addition, the object of the invention is to allow a virtual "remote" adjustment, that is to say without the physical presence of the wearer and / or the spectacle frame, by determining the necessary deformation of the frame to achieve a precise fit. This deformation can then be applied to the frame, either automatically by a machine, or manually by a qualified person, who is not necessarily the optician, in the presence or absence of the wearer. The actual adjustment of the frame is thus achieved. This is a deformation without adding material and remaining within the limits of elastic deformation of the materials constituting the frame. In Figures 1 to 4, there is shown a spectacle frame 10 chosen by the wearer. In the illustrated example, the eyeglass frame is of the rimmed type, that is to say that the frame 10 comprises circles 11, 12 in which the ophthalmic lenses are adapted to be mounted. These two circles 11, 12 are rigidly connected by a nasal bridge 13. Each circle 11, 12 is also connected to a branch 14, 15, usually articulated on the corresponding circle.
    [0007] It will be considered in the following that the branches are fixed in their open position relative to each other. The nasal bridge 13 has two bearing surfaces 16 on the wings of the nose of the wearer (Figure 1). These bearing surfaces 16 may be fixed, for example in the case of a plastic frame in which these surfaces are integrated in the circles of the frame, or be adjustable, for example in the case of a metal frame in which it there are provided two plates 16A each connected to the nasal bridge by an arm 17 (Figures 1 and 2). It is this latter case which is represented in the figures.
    [0008] The plates 16A carrying the bearing surfaces 16 of the frame 10 on the wearer's nose mainly have two adjustable parameters: firstly the distance of the wafer 16A to the circle 11, 12 of the frame 10 and secondly the tilting of the wafer 16A according to a front angle and a hunting angle defined later.
    [0009] In the case of the plastic mounts described above, the position and inclination of the support surfaces of the frame on the wearer's nose are predetermined and fixed. Each branch 14, 15 of the frame 10 comprises at least a first portion whose end is connected to the circle 11, 12 corresponding. This first part may be straight (Figure 5) or have a slight curvature allowing it to marry the contour of the TS head of the wearer. In the example shown in the figures, each branch 14, 15 of the frame 10 further comprises a second portion in the form of a spatula 14A, 15A extending the first portion of the branch 14, 15 at the end opposite the circles 11, 12 of the frame 10. This spatula 14A, 15A forms the curved end of the branch 14, 15 corresponding. It is intended to be placed behind the corresponding ORD ear ORG of the wearer (see Figure 6). Alternatively, the branches of the frame do not have spatulas.
    [0010] In this case, it is the free end of the first part of the branch which rests on the ear of the wearer. This variant is shown in dashed lines in FIG. 6. In another variant, the spectacle frame may be of the pierced type, that is to say that the lenses are pierced and each held by one end of the nasal bridge and one end of the branch associated with the lens, which cooperate with drilling holes. This type of mount is similar to that described above, except that it does not have circles. The nasal bridge and branches are similar. In this case, one takes into account for the implementation of the adjustment process described below the contour of ophthalmic lenses 5 to be mounted in the frame instead of the circles of the frame. In general, the new frames, ex factory, have a plane of symmetry PS passing through the middle of the nasal bridge 13 and equidistant from the branches 14, 15 of the frame 10. In addition, the first part of the two branches 14 15 initially extends to the same average plane PB. As represented in FIGS. 1 and 2, a first frame associated with the frame 10, that is to say in which the frame 10 has a position and a fixed orientation, having an orthonormal frame (01, X1, Y1) is defined. , Z1). The center 01 of the reference mark of this first frame of reference is, for example, the middle of the nasal bridge 13. The axis 01Z1 is parallel to the intersection of the plane of symmetry PS of the frame 10 and of the mean plane PB of the branches 14, 15. The axis 01Y1 extends in the plane of symmetry PS of the frame 10, in the opposite direction to the circles of the frame. The axis 01X1 extends parallel to the average plane of the branches PB. The plane 01Y1Z1 then corresponds to the plane of symmetry PS of the frame 10. The plane 01X1Z1 is parallel to the average plane of the branches PB. The plane 01X1Y1 is called vertical plane PVM mount. As shown in FIG. 3, a second reference frame associated with the wearer's head TS, that is to say in which the wearer's head TS has a position and a fixed orientation, having an orthonormal reference (02, X2) is defined. , Y2, Z2). The Frankfurt PF plane of the wearer's TS head is defined as the plane passing through the OR's lower orbital points and the wearer's PO porion, the porion being the highest point of the auditory canal's skull, which corresponds to the tragedy of the 'hear. It is considered that the wearer is in an orthostatic position, position in which he achieves a minimum of effort. The axis of gaze of the wearer is the primary axis of gaze, that is to say, he looks straight ahead. The plane of Frankfurt PF is then horizontal. A sagittal plane PSAG of the wearer's head TS is defined as being the vertical plane passing through the mediator AO of the two eyes OG, OD. The mediator AO of the eyes is the axis passing in the middle of the segment defined by the centers of rotation of the two eyes and parallel to the plane of Frankfurt PF. The center 02 of the reference of this second frame of reference is, for example, the middle of the segment connecting the centers of rotation of the eyes OD, OG of the wearer. The axis 02Z2 is located in the sagittal plane PSAG of the wearer's head TS and is parallel to the plane of Frankfurt PF. It extends in a direction away from the wearer's head. The axis 02Y2 extends in the sagittal plane PSAG of the head TS of the wearer and is perpendicular to the Frankfurt plane PF. The axis 02X2 extends parallel to the plane of Frankfurt PF. Alternatively, any other frame of the frame and / or the head of the wearer may be considered. In the example described here, the adjustment method is first implemented before the manufacture of ophthalmic lenses to be mounted in the frame.
    [0011] The frame 10 may then comprise non-corrective presentation lenses or no lenses. According to the adjustment method of the eyeglass frame 10 according to the invention, the following steps are carried out: b) at least partial modeling of the wearer's head TS is determined, with, in the same frame of reference, at least a model MN of a part of the nose N, a model MORD, MORG of a part of the ears ORD, ORG, c) a simulation of the positioning of the frame 10 on the head TS of the wearer, by superimposing, on the modeling of the wearer's head TS, the corresponding zones of said frame 10 or of a modeling thereof, d) determining from this superposition the necessary deformation of the frame 10 to obtain an adjustment of the mount 10 on the wearer's head TS in accordance with at least one predetermined adjustment criterion. According to a first embodiment of the method according to the invention, it is implemented by computer and electronic means programmed for this purpose. Thus, in step b), the modeling of the wearer's head is a numerical modeling, and, in step c), a numerical modeling of the frame is superimposed on this digital modeling of the wearer's head TS, by a numerical calculation.
    [0012] Then, preferably, in a first step a) of the method according to the invention, an at least partial modeling of the frame 10 is determined, with in said first reference frame (01, X1, Y1, Z1), at least one model of part of the bridge 13 of the frame 10 and a model of a part of the branches 14, 15 of the frame 10. A model of a part of the circles 11, 12 of the frame 10 is also preferably determined. modeling of the frame 10 (not shown in the figures) may be constituted for example by a set of measurement of lengths and characteristic angles of the frame. These measurements comprise, for example, for the model of part of the branches: the length of the first part of the branches 14, 15, the length of the spatula 14A, 15A, the distance between the branches 14, 15, the angle between the spatula 14A, 15A and the first part of the corresponding branch 14, 15 in the plane 01 Y1 Z1 and in the plane 01X1Z1. For example, for the model of a part of the bridge, they comprise: the distance between the bearing surfaces 16 of the bridge 13 on the nose, the angle formed between bearing surfaces 16 and the distance of these surfaces from support for the circles of the frame 10. They comprise for example, for the model of the circles 11, 12: the diameter of each circle 11, 12 in the plane 01, X1, Z1, the measurement of the curve GD, GG, corresponding to the angle formed between each circle 11, 12 and the plane 01X1Y1 or vertical plane PVM mount (Figure 2), and the position of the highest and lowest points of the circles 11, 12 in the plane 01Y1Z1. From these measurements of lengths and angles, it is possible to reconstruct a model of the frame 10. This reconstruction can take into account other parameters, such as the material of the frame or the thickness of the branches and circles . The modeling of the frame 10 (not shown in the figures) can also be constituted by the data of the position in the first frame (01, X1, Y1, Z1) of a certain number of particular points of the frame 10. This modeling can finally be the result of a three-dimensional image acquisition of the frame 10. This acquisition can be made for example using a stereoscopic image acquisition device or with the aid of a scanner in three dimensions. Whatever the method of obtaining the modeling of the frame 10, it is stored in the aforementioned computer and electronic means. It is thus possible to have in this memory, a database comprising the modelizations of a set of glasses frames available, which are determined in advance. In a second step b) of the method according to the invention, an at least partial modeling of the head TS of the wearer is determined, with, in said second frame of reference (O2, X2, Y2, Z2), at least one MN model of part of nose N and a model MORD, MORG of a part of ears ORD, ORG. In addition, a model MOD, MOG of a part of the eyes of the wearer is preferably determined.
    [0013] These models are schematically represented in FIGS. 1 and 2 by dotted lines. The MN model of a portion of the nose preferably comprises, for example, the width of the root of the nose N, the face angle AFN (FIG. 4) of the nose, the flush angle ACN of the nose (FIG. 2).
    [0014] The model MORD, MORG of a portion of each ear of the wearer has the coordinates of a curved surface corresponding to the groove S located between the horn of the ear ORD, ORG and the skull of the wearer, at the back of the ear (Figures 5 and 6). It is indeed on this groove S that rests the corresponding branch 14, 15 of the spectacle frame 10.
    [0015] The model MOD, MOG eyes of the wearer comprises for example the position in the second frame (02, X2, Y2, Z2) of the center of rotation CROD, CROG of each eye. It can also include a diameter of the eye: the model of the eye then consists of a sphere of this diameter centered on the center of rotation of the eye (Figure 2). A model of a part of the cheekbones J and / or SC eyebrows (FIG. 3) of the wearer's head is also preferably determined. This modeling is preferably the result of a three-dimensional image acquisition of the wearer's head TS. This acquisition can be made for example using a stereoscopic image acquisition device or using a three-dimensional scanner.
    [0016] The acquisition of three-dimensional images is preferably carried out for the head TS of the wearer of face (Figure 4), of profile (Figure 3) and the turn of the ears. It is preferably an accuracy of 2 degrees of angle and two millimeters on the distances. It can be performed by an outside operator, for example by the optician in his shop. It can also be envisaged that it is carried out remotely, for example by the wearer himself at home, and then transmitted to the operator responsible for adjusting the chosen frame. Modeling of the wearer's head can also be achieved by capturing one or more two-dimensional images of the wearer's head. Whatever the image capture device used, 2D or 3D, is recorded in correspondence with the captured images information indicating the scale of the captured image. This may be the image of a scale indicator disposed on the wearer's head, for example an element comprising a pattern of known dimensions, attached to the wearer's head or on a spectacle frame or the gap inter-pupillary known to the wearer. This information may also be provided by or received by the image capture device. This modeling of the wearer's head is also stored in the computer and electronic means.
    [0017] The first and second steps a) and b) of the method according to the invention can be carried out in any order, or even simultaneously. In a third step c) of the method, the computer and electronic means perform a simulation of the positioning of the frame 10 on the head TS of the wearer, by superimposing, at least partially, on the one hand, the model 20 of part of the bridge 13 of the frame 10 and the model of a portion of the nose N of the wearer, and, on the other hand, the model of a portion of the branches 14, 15 of the frame 10 and the model of a part of the ears ORD, ORG of the carrier. This is to superimpose by calculation the modeling of the frame 10 and the modeling of the head TS of the wearer. The following example gives a method of possible realization of the numerical superposition of the two modelizations. It is initially considered that the first and second reference frames (01, X1, Y1, Z1) and (02, X2, Y2, Z2) of the frame and the head are merged, then their relative positioning is optimized, while maintaining the axis 01X1 parallel to the axis 30 02X2. The horizontality of the frame on the wearer's head is thus ensured. The first reference (01, X1, Y1, Z1) of the translation mount is thus displaced in the plane (02, Y2, Z2), in translation along the axis 02X2, and in rotation along this axis 02X2 of the second reference frame. the head. We call DY, DZ the translation distances of the first reference (01, X1, Y1, Z1) according to 02Y2 and 02Z2 and is called DtetaX, the rotation angle of the first frame (01, X1, Y1, Z1) of the frame next 02X2. We then define a function with three parameters F (DY, DZ, DtetaX) whose value is minimal when the values DY, DZ, DtetaX best simulate the positioning of the modeling of the frame on the modeling of the head. For example, the function F is minimal when maximizing the contact area between the nose pads of the frame and the wings of the nose of the wearer, or when the distance between the nose pads of the frame and the wings of the nose is minimal, and when the contact between the branches of the frame and the top of the groove S of the ears of the wearer is maximum, or when the distance between each leg of the frame and the groove S of the corresponding ear is minimal. Thus, the function F can for example be written in the following form: F (DY, DZ, DtetaX) = alpha1.F1 (DY, DZ, DtetaX) + alpha2 .F2 (DT, DZ, DtetaX), where - the function F1 is a function presenting a minimum when the contact between the nose pads of the frame and the wings of the nose and - the function F2 is a function presenting a minimum when the contact between the branches and the grooves of the ears is maximal, - alpha1 and alpha2 are positive weights. The Fi functions represent the different adjustment criteria taken into account. These adjustment criteria are detailed below. In practice, the parameter DY is representative of a height of the positioning of the bridge of the frame on the nose, the parameter DZ is representative of a distance between the eyes and the circles of the frame, and the parameter DtetaX is representative of an angle of inclination of the arms of the frame relative to the axis 02Z2 of the second frame of the wearer's head. It is also possible to optimize only the parameters DY, DZ, considering that the branches of the frame are parallel to the axis 02Z2 of the second frame of reference. We then have a function F3 of two parameters F3 (DY, DZ). According to another variant, it is also possible to add additional positioning parameters, for example a translation distance along the axis 02X2 of the second reference frame of the head, called DX, a rotation angle DtetaY along the axis 02Y2, an angle DtetaZ of rotation along the axis 02Z2 of this second frame of reference. This makes the optimization more complex but more precise. In the example developed above, the values of the parameters DY, DZ, DtetaX are sought by minimizing the function F by conventional optimization methods, for example by the gradient method or the Levenberg-Marquardt method. Other functions Fi (i> 2) can be introduced into the optimization function F with alpha weighting factors, in order to determine more precisely the relative positioning of the modeling of the frame on the modeling of the wearer's head, by example functions to take into account the weight of the frame, the coefficient of friction of the frame on the skin.
    [0018] These weighting factors can also be determined according to the particular wishes of the wearer. This may wish for example a higher or lower positioning of the frames on the nose of the wearer. The mount is indeed often positioned lower on the nose for a reading position.
    [0019] The factors alpha1, alpha2, alpha of weighting make it possible to take into account the relative importance of the various functions considered. It is for example possible to minimize certain weighting factors to allow easier adjustment of the frame. At the end of the optimization, a virtual positioning of the modeling of the frame on the modeling of the wearer's head, which is representative of the positioning of the real mount on the TS head of the wearer, before a deformation of Frame. The positioning is not perfect, and may be further removed from the desired ideal positioning. Once the optimal relative position of the modeling of the frame in its initial geometry determined, it is determined, in a step d), from this superposition, the necessary deformation of the frame 10 to obtain an adjustment of the frame 10 on the TS head of the carrier conforming to at least one predetermined adjustment criterion. It is a question of determining the necessary deformation of the frame 10 in order to achieve a satisfactory adjustment, thanks to which: the circles of the frame are positioned relative to the eyes of the wearer so as to offer, for example, a field of view on the more extended possible to the wearer, while respecting criteria of aesthetics, - the eyeglass frame rests on the nose, without slipping and without hurting, with all the necessary stability, - the branches of the eyeglass frame rest on the ears of the carrier, without exaggerated compression on the temples, without excessive traction on the ears, - the mount is horizontal on the head of the wearer, that is to say the axis 01X1 of the first reference is parallel to the axis 02X2 of the second reference, or the axis 02X2 of the second reference is parallel to a line associated with the eyebrows or the right passing through the two pupils of the wearer. A satisfactory adjustment of the branches 14, 15 of the frame 10 is particularly illustrated in FIGS. 5 and 6. FIG. 5 shows how the branch of the frame follows the contour of the wearer's head TS, without pressing on his head, and how branch 15 rests on the groove S of his ear ORD. Figure 6 shows how the camber of the branch 15 located at the junction between the first part of the branch 15 and the spatula 15A must adapt to the shape of the groove S of the ear ORD. The adjustment criteria for determining the adjustment can in particular comprise, first of all, optimization criteria identical to those used previously, but used this time taking into account the possibility of deforming the frame: - maximization of the contact surface 16 between the plates 16A of the bridge 13 and the nose of the wearer, - maximizing the contact between the branches 14, 15 of the frame 10 and the groove S of the ears ORD, ORG of the wearer, - centering of the eyes OD , OG with respect to the circles 11, 12 of the frame 10. Because one envisages possible deformations of the frame, it is possible to take into account other criteria: - maintenance of the axis 01X1 parallel to the 02X2 axis to ensure the horizontality of the frame 10, - minimizing the contact areas between the circles 11, 12 of the frame 10 and the cheek J and / or SC eyebrows of the wearer; It is also possible to take into account target values of various adjustment parameters of the frame 10 on the wearer's head: target value of the spacing of the branches 14, 15 of the frame 10; target value of the inclination of the branches 14, 15 of the frame 10 relative to the circles of the frame 10; target value of the gap between the platelets 16A, target value of the gap between the eyes OD, OG and the circles 11, 12 of the frame 10, target value of the gap between the circles of the frame and the eyebrows and / or the cheekbones of the wearer, - target value of the AMV pantoscopic angle (FIG. 3), - target value of the curve of the frame. The AMV pantoscopic angle is defined as the angle between the mean plane of each circle PMC of the frame 10 and the vertical plane eye PVO, which is the plane perpendicular to the axis of the gaze in the orthostatic position. Preferably, the vertical eye plane PVO also corresponds to the plane perpendicular to the Frankfurt plane passing through the centers of rotation CROG, CROD of the eyes, measured in projection in the sagittal plane of the head TS of the wearer. These target values can be defined according to standard adjustment values: for example a target value of the distance between the eyes and the circles of the frame, that is to say between the corneal vertices of the eyes and the mean plane. of each circle, is equal to 12 millimeters. It is also possible to set a target value of the gap between the circles of the frame 10 and the eyebrows and / or the cheekbones of the wearer equal to 3 millimeters, for example. Finally, it is possible to set a target value equal to 6 degrees for the pantoscopic angle or equal to 8 degrees for the value of the curve angle of the frame 10. The target values can also be determined according to the material of the mounting: for example, for a satisfactory fit, a target value of the spacing between the branches can be provided as a function of the upper ear gap, that is to say the distance between the grooves S of the straight ears 30 ORD and left ORG. For flexible branches, for example made of metal and thin, the target value of the gap between the branches is equal to the upper ear gap minus fifteen millimeters. For semi-rigid branches, for example made of metal and thick, the target value of the gap between the branches is equal to the upper ear gap minus ten millimeters. For rigid branches, for example made of plastic and thin, the target value of the gap between the branches is equal to the upper ear gap minus five millimeters. For very rigid branches, for example made of plastic and of great thickness, the target value of the gap between the branches is equal to the upper ear gap minus two or three millimeters. Target values can be replaced by target value ranges. It is also possible to take into account other empirical criteria, for example, to impose that the branch 14, 15 is in contact with the groove S of the ear ORG, ORD over a length of between 2 and 2.5 centimeters (FIG. 6) and that it is at a distance of between 2 and 5 millimeters from the skull of the wearer. It is also possible that the shape of the spatula is adapted all along the groove of the ear. This adjustment allows a better hold of the equipment, especially for those with a fairly flat nose, with a strong correction or significant dynamic activity. It is also possible to take into account the specific wishes of the wearer to determine the necessary deformation of the frame in order to achieve a satisfactory fit for this wearer. For this purpose, it is possible to ask the wearer to complete a questionnaire in order to determine whether he wishes for example that the eyeglass frame is based on an upper part of the nose, close to his eyes, in order to increase his field vision, or if he prefers the mount to rest near the lower end of his nose. It is also possible to rely on the observation of the wearer with his old eyeglass frame to determine his wishes. Then, his wishes are translated into adjustment criteria based on the following adjustment rules. As described below, the distance between the eyes of the wearer and the circles of the frame, as well as the pantoscopic angle thereof, is adjusted in particular. To adjust the positioning of the circles 11, 12 in front of the eyes OD, OG and / or to limit the areas of contact between the circles 11, 12 and the cheekbones J or the eyebrows SC of the wearer, it is possible to modify the difference between the platelets 16A. The nose having a trapezoidal shape, the smaller the gap between the pads 16A, the more the mount 10 will be positioned high on the wearer's face.
    [0020] The arms 17 of the platelets 16A can also be adjusted to move the plates 16A away from or closer to the circles 11, 12 of the frame 10 and thus to modify the distance between the eyes OD, OG and the ophthalmic lenses that will be carried by the frame 10. For ensure the horizontality of the frame and adjust the pantoscopic angle, we can change the inclination of the branches 14, 15 relative to the circles 11, 12 of the frame 10. This also allows to adjust the contact between each branch 14, 15 and groove S of the ear ORD, corresponding ORG of the wearer. To ensure the horizontality of the frame 10 on the wearer's head TS with respect to the eyebrows or with respect to the eyes, it is necessary to tilt down the branch on the side of the lower circle or to incline upwards the branch on the side of the highest circle. Depending on the height of the ears ORD, ORG with respect to the eyes, the branches 14, 15 can be tilted towards the bottom of the wearer's head in order to increase the pantoscopic angle, which favors the near vision of the wearer or inclines the branches 14, 15 to reduce the pantoscopic angle, which allows in particular to limit the contact between the bottom of the frame circles and cheekbones. The opening of the branches 14, 15 is initially symmetrical. However, if the front of the frame 10, which includes the circles 11, 12 and the bridge 13, is not parallel to the wearer's face, the parallelism can be adjusted by opening the branch 14, 15 on the side of the facade. the farthest from the wearer's face. When the branches do not have spatulas, the material of the frame must be quite rigid and the opening of the branches must be determined precisely to maintain the mount on the head without compressing it. In order to determine the necessary deformation of the frame 10 to carry out the adjustment, it is firstly possible to identify the zones of interference between the model of the frame 10 and the modeling of the head TS of the wearer. These zones of interference correspond, for example, to the regions of the space in the second reference frame 02X2Y2Z2 of the wearer's head TS in which the modeling of the frame 10 and the modeling of the wearer's head TS penetrate one inside. the other. Once these areas of interference have been identified, the deformation of the modeling of the frame 10 necessary to eliminate all the interference zones is determined by calculation. For this purpose, it allows only a limited number of deformations of the frame, corresponding to the possible settings of this frame 10 during adjustment: - modification of the angle of inclination of the branches of the frame relative to the circles of the mounting, that is to say in the plane 01X1Z1, - modification of the angle of inclination of the spatulas 14A, 15A relative to the first part of the corresponding branch 14, 15 - modification of the spacing of the ends of the two branches, - modification of the curve of the mount. For the frames having pads 16A mounted on an arm 17 and not integrated in the circles, it is also possible to change the distance between the contact surfaces 16 of the plates and the circles 11, 12 of the frame 10, as well as the angle face and the hunting angel of each plate 16A. The flush angle of each wafer 16A corresponds to the inclination of the contact surface of the wafer relative to the plane 01Y1Z1 of the frame 10, measured in projection in the plane 01X1Z1. The front angle of each wafer 16A corresponds to the inclination of the contact surface of the wafer relative to the plane 01Y1Z1, measured in projection in the plane 01X1Y1. It is possible to provide deformation limit values that must not be exceeded, as this may damage the frame, which may depend on the material of the frame. Once the interference zones have been eliminated, it is possible to continue optimizing the placement of the frame 10 on the wearer's head according to the criteria previously set out, in particular according to the target value of the distance between the eye. and the lens, the target value of the pantoscopic angle, the curve of the frame, the height of the frame relative to the cheekbones and eyebrows of the wearer. As explained above, the method is preferably first implemented at the time of choosing the frame, before the production of ophthalmic lenses to be mounted in this frame. The computer and electronic means can then be programmed to derive from the necessary deformation of the determined frame, a level of difficulty of the adjustment. This level of difficulty is transmitted to the operator who can then advise the wearer to choose another mount if the adjustment is too difficult. The experience of the operator and his ability to achieve the specific adjustment can also be taken into account. An alert can be issued if a satisfactory fit is not possible, for example if the necessary adjustment exceeds the mechanical limits of the mount and may damage it, or if the desired setting on the mount is not possible. For example, it is not possible to adjust the spacing of the wafers on plastic mounts, because these mounts do not have any. Thus, advantageously, the computer and electronic means realize, as a result of step d), an additional step p) of information return on the adequacy between the ability to deform the frame and the necessary deformation of the mount 10 determined in step d). The computer and electronic means can also be programmed to determine, according to the necessary deformation of the determined frame, a corrected modeling of the spectacle frame after this deformation and to deduce a parameter of comfort and visual performance of the pair of glasses. glasses including this mount. These parameters can be determined respectively taking into account the weight of the ophthalmic lenses and the placement of the eyes relative to the circles of the spectacle frame. Thus, advantageously, the computer and electronic means can perform, as a result of step d), an additional step q) information return indicating an expected final relative position of the frame on the wearer's head, after adjustment, and possibly readjustment, of the frame.
    [0021] This information is transmitted to the operator and can be a decision aid in the choice of the eyeglass frame. When the choice of the frame is final, the method then allows in particular to adjust the frame to the wearer's face in order to take the necessary measures for the manufacture of ophthalmic lenses on the wearer wearing the fitted spectacle frame. It is thus possible to measure the position of the pupils of the two eyes relative to the circles of the frame and thus correctly center the ophthalmic lenses relative to the frame so that their centering points are in front of the pupils of the eyes. This can be done physically, with the mount 10 in its adjusted geometry, or numerically. In the first case, in a step f) of the method, the deformation determined in step d) is applied to the spectacle frame 10. Then the necessary measures are taken to manufacture the ophthalmic lenses on the wearer equipped with the fitted spectacle frame. In the second case, in a step g), the corrected relative position of the model of a part of the circles of the frame and the model of part of the wearer's eyes is determined by taking into account the necessary deformation of the determined frame. in step d), by means of a numerical simulation similar to that of step c). In a step h), at least one geophysical-physiognomic parameter of implantation of an ophthalmic lens in the frame is determined so that the optical center of the lens comes opposite the corresponding eye of the wearer, as a function of said position. corrected relative determined in step g). These geometrical-physiognomic implantation parameters comprise, for example, the height H of the pupils relative to the lowest point of the circles of the frame (FIG. 4), the AMV pantoscopic angle, the half pupillary gaps and the position of the centers. of rotation of the eyes. Optionally, in a step i) at least one optical refraction characteristic of at least one ophthalmic lens to be mounted in this frame 10 is determined as a function of the corrected relative position determined in step g). The manufacture of ophthalmic lenses is then more precise, and adapted to both the wearer and the chosen frame. Once the ophthalmic lenses are manufactured and mounted in the eyeglass frame, it is possible that the weight of the ophthalmic lenses deforms the eyeglass frame and that it no longer exactly has the adjusted geometry before mounting the ophthalmic lenses. It is then possible to repeat the method according to the invention to determine the deformation of the frame necessary to adjust the frame provided with ophthalmic lenses on the wearer's face. We then talk about readjustment of the mount.
    [0022] This readjustment may for example take into account a coefficient of elasticity of the skin of the nose and / or a parameter that varies according to the weight of the ophthalmic lenses. Advantageously, the modeling of the carrier being in memory in the computer and electronic means, this readjustment can be performed in the absence of the carrier. Whether for adjustment or readjustment of the spectacle frame, the computer and electronic means are more preferably programmed to display instructions allowing the operator to apply step by step the deformation determined in step d ) for the spectacle frame. An embodiment of the method according to which, in steps a) and b), the modelizations of the eyeglass frame 10 and of the wearer's head TS are described in numerical modelings, and, in step c), superimposition of the two modelizations is carried out by a numerical computation.
    [0023] According to a second embodiment of the adjustment method, in step b) the modeling of the TS head of the wearer is a physical modeling, and, in step c), is superimposed on this physical modeling of the TS head of the carrier, a physical modeling of the frame (10), by the actual placement of the physical modeling of the eyeglass frame (10) on the physical modeling of the wearer's head. Thus, prior to step b), a step a) of determining a physical modeling of the spectacle frame is carried out. This has the advantage of allowing the determination of the necessary deformation of the frame for the adjustment of this frame on the head of the individual, even without having the actual frame, and without particular computer and electronic processing means allowing a numerical modeling and a superposition by calculation. This physical modeling of the frame can be achieved by known prototyping techniques, for example by 3D printing after image acquisition of this frame. In step d), from this superposition, the necessary deformation of the frame 10 is determined in order to obtain an adjustment of the frame 10 on the head TS of the wearer according to at least one predetermined adjustment criterion. The adjustment criteria taken into account here are the same as those described in the first embodiment. These include the following criteria: - maximization of the contact surface 16 between the plates 16A of the bridge 13 and the nose of the wearer, - maximizing the contact between the branches 14, 15 of the frame 10 and the groove S of the ears ORD, ORG of the wearer, - centering of the eyes OD, OG with respect to the circles 11, 12 of the frame 10. Because one envisages possible deformations of the frame, it is possible to take into account other criteria maintaining the axis 01X1 of the first reference frame of the frame parallel to the axis 02X2 of the second reference frame of the head in order to guarantee the horizontality of the frame 10, - minimizing the contact areas between the circles 11, 12 of the frame 10 and the cheekbones J and / or the eyebrows SC of the wearer.
    [0024] These criteria can be evaluated by the operator. It may also be to achieve one or more target values, as described in the first embodiment. The operator can, for this purpose, take distance or angle measurements on the superimposition of the modeling of the frame and modeling of the wearer's head. In all cases, the operator thus assesses the necessary deformation of the frame. Then, this deformation can be applied to the actual frame to make the adjustment.
    [0025] According to a third embodiment of the adjustment method according to the invention, in step b) the modeling of the TS head of the carrier is a physical modeling, and, in step c), is superimposed on this physical modeling of the wearer's head TS, the mount 10 itself, by the actual placement of this eyeglass frame 10 on the physical modeling of the wearer's head.
    [0026] In this case, no step of determining a model of the frame is made. The actual spectacle frame is directly used and placed on the modeling of the wearer's head. This has the advantage of allowing a precise adjustment of the frame, even in the absence of the wearer. This could for example allow to ship the frame already adjusted to the wearer. Preferably, in the second and third embodiments, in step b), the physical modeling of the head is carried out at scale 1, using at least one of the following techniques: - techniques resulting from rapid prototyping , - deformable bench that can be motorized or not. The modeling of the wearer's head may comprise an artificial head with adjustable ears and nose models, for example motorized, driven by the computer and electronic device.
    [0027] Alternatively, the physical modeling of the head is made from a deformable support and a set of inserts on this support. This artificial head may for example comprise a deformable support reproducing the shape and overall dimensions of the head, which receives models of ears and nose made by three-dimensional printing of the data recorded by a three-dimensional image acquisition of carrier. In another variant, it is possible to envisage that, in step b), the physical modeling of the head is selected from among a set of head modelings previously produced. This selection is for example carried out on the basis of criteria of shapes of the face, nose and ears. The adjustment criteria taken into account here are the same as those described above. These criteria can be evaluated by the operator or by measuring instruments. In all cases, the operator estimates the necessary deformation of the frame. This deformation can be here directly applied to the actual frame in order to achieve the adjustment of the actual frame on the modeling of the wearer's head. Whatever the embodiment of the invention, it is possible to provide a step of controlling the adjustment made, during which the centering of the circles of the frame relative to the eyes of the wearer, the pantoscopic angle of the mount, the distance between the eyes and the circles of the mount, the curve of the mount, the positioning of the branches on the ears are compared to the target values, standard or customized these parameters.
    [0028] In the second and third embodiments, physical modeling of the wearer's head may be provided to perform this control step simultaneously with the adjusted mount. For example, the modeling may be provided to the optician to enable him to verify the adjustment made or it can be provided to the wearer so that he himself readjusts his frame having been deformed by use. This physical modeling facilitates readjustment operations. Whatever the embodiment considered, it is advantageously possible to perform each step in different places. In particular, it is possible to perform step b) on a first site and step d) on a second site. The first site is located in any place accessible either physically by the wearer, or on the internet: these include the workplace of an optician, a kiosk installed in a shopping mall, or the website of an optician. The second site is located for example at an optician or in a glasses fitting laboratory.
    权利要求:
    Claims (22)
    [0001]
    REVENDICATIONS1. A method of fitting a predetermined spectacle frame (10) for use by a given wearer, comprising the following steps: b) at least partial modeling of the wearer's head (TS) is determined with, in a same referential, at least one model (MN) of a part of the nose (N) and a model (MORD, MORG) of part of the ears (ORD, ORG), c) a simulation of the positioning of the frame (10) on the head (TS) of the wearer, by superimposing, on the modeling of the head (TS) of the wearer, the corresponding zones of said frame (10) or a modeling thereof, d) determining from this superposition, the necessary deformation of the frame (10) to obtain an adjustment of the frame (10) on the head (TS) of the carrier conforming to at least one predetermined adjustment criterion.
    [0002]
    2. Adjustment method according to one of the preceding claims, wherein, in step b), the modeling of the head (TS) of the wearer is a numerical modeling, and, in step c), is superimposed on this numerical modeling of the head (TS) of the wearer, a numerical modeling of the frame (10), by a numerical computation.
    [0003]
    3. An adjustment method according to claim 1, wherein, in step b) the modeling of the head (TS) of the wearer is a physical modeling, and, in step c), is superimposed on this physical modeling of the wearer's head (TS), a physical modeling of the frame (10), by the actual placement of the physical modeling of the eyeglass frame (10) on the physical modeling of the wearer's head.
    [0004]
    4. Adjustment method according to one of claims 1 and 2, wherein, prior to step c), a step a) of determining the modeling of the frame (10) is carried out, with, in the same another referential, at least one model of a portion of the bridge (13) of the frame (10) and a model of a portion of the legs (14, 15) of the frame (10).
    [0005]
    5. An adjustment method according to claim 4, wherein, in step c), the model of a part of the bridge of the frame (10) and the model (MN) of the frame are superimposed on the one hand. part of the nose of the wearer, and, on the other hand, the model of part of the branches of the frame (10) and the model (MORD, MORG) of part of the wearer's ears.
    [0006]
    6. An adjustment method according to claim 1, wherein in step b) the modeling of the head (TS) of the wearer is a physical modeling, and, in step c), is superimposed on this physical modeling. of the wearer's head (TS), the mount (10) itself, by the actual placement of this spectacle frame (10) on the physical modeling of the wearer's head.
    [0007]
    7. An adjustment method according to claim 6, wherein, in step b), the physical modeling of the head is carried out at scale 1, using at least one of the following techniques: rapid prototyping, - deformable bench that can be motorized or not.
    [0008]
    8. Adjustment method according to claim 6, wherein, in step b), the physical modeling of the head is made from a deformable support and a set of inserts on this support.
    [0009]
    9. An adjustment method according to one of claims 6 to 8, wherein, in step b), the physical modeling of the head is selected from a set of head modelings previously carried out.
    [0010]
    10. Adjusting method according to one of the preceding claims, wherein in step d), said predetermined adjustment criterion comprises a desired relative position of the legs (14, 15) of the frame (10) by relationship to the ears (ORD, ORG) of the wearer.
    [0011]
    11. Adjustment method according to one of the preceding claims, wherein in step d), said predetermined adjustment criterion comprises a spacing of the legs (14, 15) of the frame (10) desired according a determined difference between the ears (ORD, ORG).
    [0012]
    12. An adjustment method according to one of the preceding claims, wherein in step d), said predetermined adjustment criterion consists of an optimization of the contact surface between two plates (16A) of the bridge (13). the mount (10) and nose (N) of the wearer.
    [0013]
    13. Adjusting method according to one of claims 4 and 5, wherein, in step a), is further determined a model of a portion of the circles (11, 12) of the frame (10), in step b), a model (MOD, MOG) of a part of the eyes (OD, OG) of the wearer is furthermore determined and in step d), said predetermined adjustment criterion comprises a relative position of the circles (11, 12) of the frame (10) and eyes (OD, OG) of the wearer.
    [0014]
    14. An adjustment method according to one of claims 4 and 5, wherein in step a), further determines a model of a portion of the circles (11, 12) of the frame (10); in step b), a model of a part of the cheekbones (J) and / or eyebrows (SC) of the wearer is furthermore determined, and in step d), said predetermined adjustment criterion comprises a distance desired minimum between the circles (11, 12) of the frame (10) and the cheekbones and / or eyebrows of the wearer.
    [0015]
    15. Adjusting method according to one of the preceding claims, wherein in a step e), the user is provided adjustment instructions for applying to the frame (10) glasses the deformation determined at the step d).
    [0016]
    16. Adjusting method according to one of the preceding claims, wherein, in a step f), is applied to the frame (10) glasses the deformation determined in step d).
    [0017]
    17. Adjusting method according to claim 13, wherein, the following step is further carried out: g) determining the corrected relative position of the model of part of the circles (11, 12) of the frame (10) and the model of a portion of the eyes of the wearer 20 taking into account the necessary deformation of the frame (10) determined in step d), by means of a digital simulation similar to that of step c).
    [0018]
    18. An adjustment method according to claim 17, wherein the following step is further carried out: h) at least one geometric-physiognomic parameter 25 for implanting an ophthalmic lens into the frame (10) is determined so that the optical center of the lens comes opposite the corresponding eye (OD, OG) of the wearer, as a function of the corrected relative position determined in step g).
    [0019]
    19. Adjusting method according to one of claims 17 and 18, wherein the following step is further carried out: i) determining at least one optical refraction characteristic of at least one ophthalmic lens to be mounted in this mount (10) according to said corrected relative position determined in step g).
    [0020]
    20. An adjustment method according to one of the preceding claims, wherein step b) is performed on a first site and step d) is performed on a second site.
    [0021]
    21. A method of adjustment according to the preceding claim, wherein the first site is located in any location accessible either physically by the wearer or on the internet, and the second site is located at an optician or in a spectacle fitting laboratory. .
    [0022]
    22. Adjustment method according to one of the preceding claims, according to which is carried out, following step d), at least one of the following two additional steps: p) a reference information on the adequacy between the ability to deform the mount and the necessary deformation of the mount (10) determined in step d), q) a reference information indicating a final relative position of the frame on the wearer's head, after adjustment of the mount.
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    同族专利:
    公开号 | 公开日
    WO2015101738A3|2015-09-17|
    WO2015101738A2|2015-07-09|
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    US20160327811A1|2016-11-10|
    EP3090308A2|2016-11-09|
    CN105992966A|2016-10-05|
    US10488679B2|2019-11-26|
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    法律状态:
    2016-01-26| PLFP| Fee payment|Year of fee payment: 3 |
    2017-01-25| PLFP| Fee payment|Year of fee payment: 4 |
    2018-01-25| PLFP| Fee payment|Year of fee payment: 5 |
    2018-07-06| TP| Transmission of property|Owner name: ESSILOR INTERNATIONAL, FR Effective date: 20180601 |
    2020-01-27| PLFP| Fee payment|Year of fee payment: 7 |
    2021-01-25| PLFP| Fee payment|Year of fee payment: 8 |
    2022-01-25| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1450017A|FR3016050B1|2014-01-02|2014-01-02|METHOD OF ADJUSTING A PREDETERMINED GLASS MOUNT FOR USE BY A DONOR|FR1450017A| FR3016050B1|2014-01-02|2014-01-02|METHOD OF ADJUSTING A PREDETERMINED GLASS MOUNT FOR USE BY A DONOR|
    US15/108,632| US10488679B2|2014-01-02|2014-12-22|Method for fitting a predetermined glasses frame for the use thereof by a given wearer|
    EP14830999.0A| EP3090308A2|2014-01-02|2014-12-22|Adjustment process of a pre-selected real spectacles frame for use by a given wearer|
    CN201480075419.1A| CN105992966A|2014-01-02|2014-12-22|Method for fitting an actual predetermined glasses frame for the use thereof by a given wearer|
    PCT/FR2014/053505| WO2015101738A2|2014-01-02|2014-12-22|Method for fitting a predetermined glasses frame for the use thereof by a given wearer|
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