EP2091690B9 - Verfahren zur bestimmung der position eines in einem brillenglas zu erzeugenden bohrlochs - Google Patents

Verfahren zur bestimmung der position eines in einem brillenglas zu erzeugenden bohrlochs Download PDF

Info

Publication number
EP2091690B9
EP2091690B9 EP07872398A EP07872398A EP2091690B9 EP 2091690 B9 EP2091690 B9 EP 2091690B9 EP 07872398 A EP07872398 A EP 07872398A EP 07872398 A EP07872398 A EP 07872398A EP 2091690 B9 EP2091690 B9 EP 2091690B9
Authority
EP
European Patent Office
Prior art keywords
target
lens
point
projection
drilling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07872398A
Other languages
English (en)
French (fr)
Other versions
EP2091690B1 (de
EP2091690A1 (de
Inventor
Philippe Pinault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR0611124A external-priority patent/FR2910644B1/fr
Application filed by Essilor International Compagnie Generale dOptique SA filed Critical Essilor International Compagnie Generale dOptique SA
Publication of EP2091690A1 publication Critical patent/EP2091690A1/de
Publication of EP2091690B1 publication Critical patent/EP2091690B1/de
Application granted granted Critical
Publication of EP2091690B9 publication Critical patent/EP2091690B9/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • B24B9/146—Accessories, e.g. lens mounting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/005—Blocking means, chucks or the like; Alignment devices
    • B24B13/0055—Positioning of lenses; Marking of lenses

Definitions

  • the present invention generally relates to the field of eyewear and more specifically to the drilling of ophthalmic lenses for mounting on spectacle frames of the type without a circle.
  • it relates to a method of determining the position of a target borehole to be made on a target correction lens from a reference lens that has a reference borehole.
  • the positioning of the target drill holes to be made on the target corrective lens is inferred from that of the reference drilling holes of the reference lens. This positioning can be done manually: the optician measures the position of the referred drilling holes and reports these measurements on the target correction lens of the cut-out lens.
  • the reference lens is placed in an image acquisition device of this lens, which displays this image on a screen.
  • the operator then proceeds to locate the referent drilling holes by pointing on the screen each of these holes.
  • the processing system stores the position of the referential drill holes relative to the image of the reference contour of the reference lens in the acquisition plane.
  • the target correction lens is then centered. Its image is acquired in a centering plane so as to locate its optical reference and to position accordingly the desired target contour for the target correction lens. Then, after trimming the target correction lens according to the target contour identical to that of the reference lens, a drill bit having a suitable diameter is brought opposite a target piercing point of the lens. target correction.
  • This target drilling point is directly defined as being the projection counterpart in the acquisition and centering planes of the reference drilling point, in the sense that it is the point that is projected in the centering plane ( of the correction lens) has a position similar to that of the image in the acquisition plane (of the reference lens) of the reference drilling point of the reference lens.
  • the correction lens is then pierced by means of a relative advance movement of the drill bit relative to the lens along the axis of rotation of the drill bit. If the diameter of the drill bit is smaller than the desired diameter, the hole obtained is widened to the right diameter by means of a suitable transverse displacement of the drill bit.
  • the object of the present invention is to accurately determine the position of the drilling holes to be made on the target correction lens for assembly to the branches and the nasal bridge of the eyeglass frame without a circle selected by the wearer.
  • the drill When drilling the target correction lens, for example on the side of the front face of the lens, the drill pierces the lens at a previously marked target drilling point.
  • this target drilling point is marked so that, if the projected images of the reference and correction lenses are superimposed in projection in the acquisition and centering planes so as to coincide their respective reference and target contours, the image of the target piercing point of the target correction lens is merged with the image of the reference piercing point of the reference lens.
  • the actual three-dimensional distance separating the wafer (or any other point identified) from the reference lens of the reference point of the drilling hole is determined. Knowing this distance, it is possible to transfer it to the corresponding optical face of the target correction lens, so that the actual three-dimensional distance between the wafer of the correction lens and its target piercing hole is identical to that determined on the reference lens. This distance no longer depends on the projection plane in which the image of the reference lens is acquired.
  • the bridge and the branches of the frame can thus be assembled with the correction lenses without any difficulty and at the desired position, which then allows to correctly position the lenses opposite the pupils of the eyes of the wearer so that they exercise the best the optical functions for which they were designed.
  • the drill points reference and target drill holes of the reference lens and the target correction lens match" in the sense that they are of the same nature with respect to the piercing hole concerned: for example, if the point The reference hole of the reference drilling hole is chosen to be the center of the mouthpiece on the front face of this reference drilling hole, the reference point of the target drilling hole is also coincident with the center of its mouth on the front face.
  • two points are "homologous" if, on the one hand, they belong to the corresponding optical faces of the target correction lens and of the reference lens, and if, on the other hand, when the images of the reference lens and the correction lens are superimposed in the same plane by matching all or part of their contours, the images of these two points are also superimposed.
  • projections anchor points and piercing points in the acquisition plane are made in the same and only direction of projection perpendicular to a general plane of the lens or parallel to the axis of illumination or image capture.
  • a target anchor point of the target correction lens homologous to the reference anchor point of the objective lens is identified. reference and calculates the position of the target drilling point according to this target anchor point and the reference three-dimensional distance.
  • the referent anchor point and the referent pierce point belong to the same reference face of the reference lens, and the target anchor point and the target pierce point belong to the same target face of the target correction lens, said reference face and said corresponding target face.
  • the target three-dimensional distance from said target anchor point is transferred to the target correction lens substantially in a deflection direction connecting the target anchor point to the target piercing point.
  • the target anchor point of the target correction lens is homologous to the reference anchor point of the reference lens in the previously defined sense.
  • the reference anchor point of the reference lens is disposed on the contour of this lens, the target anchor point of the target correction lens is positioned on the same point of the contour after the correction lens has been trimmed. (these contours are identical).
  • the reference anchor point of the reference lens is disposed in the center of another of the referent boreholes associated with a target target already determined, the target anchor point of the Target correction is the center of this target hole.
  • the anchor points of the lens Target correction and the reference lens are therefore not necessarily homologous.
  • a drill bit opposite the piercing point of the correction lens there are various types of drills and different types of methods for positioning according to the invention a drill bit opposite the piercing point of the correction lens.
  • One of these methods is to come tangent with the drill bit the edge of the correction lens previously cut out, and then move the drill in a direction parallel to the plane tangent to the area to be pierced from the front face of the correction lens. This displacement, if it is performed by a distance corresponding to the previously calculated distance, then makes it possible correctly to position the drill vis-à-vis the desired drilling point so that the mount can be precisely assembled with this lens.
  • At least one characteristic of the curve of the target correction lens is determined and the target projection distance is calculated in a centering plane similar to the acquisition plane, between the projected target drilling point of the target drilling hole of the target correction lens and the projection of the target anchor point of this target correction lens, depending on the reference three-dimensional distance and the curve characteristic of the target correction lens.
  • the anchor points of the reference and correction lenses are homologous in the sense explained above.
  • the image of the reference lens is acquired in a given acquisition plan.
  • the image of the correction lens is acquired, in view of its centering, in a given centering plane.
  • These planes are similar in that they are substantially inclined in the same way with respect to the lenses, so that the contour of the image of the reference lens is identical to that of the image of the correction lens.
  • these acquisition and centering planes are substantially parallel to the mean planes of the reference or target correction lens, or to the average planes of the contours of these lenses. It is thus possible to consider in the same virtual plane confusing these acquisition and centering plans, the images of the reference and correction lenses.
  • the grinders and drills locate the position of their drill bit in a plane corresponding to the aforementioned centering plane. It is therefore necessary to determine the distance between the projections of these two points in the centering plane, in order to then simply and accurately position the drill bit relative to the correction lens.
  • said characteristic of the curve of the target correction lens is identified on one of the optical faces of the target correction lens near an approximate point of the target drilling point of the target drilling hole, said optical face is palpated of the target correction lens at at least three points located in the vicinity (typically less than 10 millimeters) of the approximate point, and an angle of inclination of said optical face of the correction lens at the approximate point with respect to centering plane, this angle then constituting said characteristic of the desired curve.
  • the approximate point is a point on the correction lens that is judged to be near or calculated to be close to the piercing point of the target hole.
  • This approximate point may for example be the homologous point of the reference point of the reference drilling hole of the reference lens.
  • the relative positions of three probed points make it possible to approximate the shape of the palpated optical face of the lens, in the area of the approximate point.
  • the shape of the optical face of the lens does not have large variations in this area, it is approximated that this shape is identical to the shape of the lens in the vicinity of the area where it will be pierced.
  • This probing thus makes it possible in particular to deduce the inclination of the axis according to which the correction lens will have to be pierced so that the target piercing hole opens out orthogonally to the palpated optical face of the lens.
  • This inclination further provides a value of the curve of the correction lens which makes it possible to determine the position of the projected reference point of the target drilling hole in the centering plane.
  • the overall curvature of one of the optical faces of the target correction lens is acquired, one of the optical faces of the target correction lens is identified by approached point near the target drilling point of the target drilling hole, and an angle of inclination of said optical face of the target correction lens at the approached point is calculated as a function of said overall curvature and the position of the approached point. relative to the centering plane, this angle then constituting said characteristic of the desired curve.
  • the front optical face of a lens is generally approximately circumscribed to a sphere whose radius of curvature is generally provided to the optician by the lens manufacturer.
  • the radius of curvature of this sphere and the position of the point approaching the piercing point makes it possible to determine an approximation of the inclination of the axis through which the lens will be pierced.
  • this angle also makes it possible to determine the position of the projected reference point of the target drilling hole in the centering plane.
  • the objective of the method according to the invention is to determine the position of a target drilling hole to be made on a correction lens according to the position, which is proposed to acquire, a drilling hole referent of a reference lens.
  • the method thus comprises a first step of acquiring the position of the reference drilling holes of the reference lens.
  • This acquisition device comprises lighting means 51, 52, a support 55 for accommodating a reference lens 100 (typically consisting of a presentation lens used to present the frame) and capture means 53 of a global image of this lens.
  • the lighting means 51, 52 comprise a collimation lens 52 of axis A52 and a light source 51 placed at the focus of the collimation lens 52. After passing through the collimation lens 52, the light rays are thus directed in parallel. to the axis A52 of the collimation lens 52.
  • the illumination direction D51 is thus parallel to the direction of the axis A52.
  • the capture means 53 comprise a camera 53 provided with a lens having an optical axis A53.
  • the device for acquiring the position of the reference drilling holes comprises an optical axis defined as the axis A52 of the collimation lens 52 and the axis A53 of the objective of the acquisition means 53.
  • the capture direction image by the acquisition means 53 is here confused with the direction of illumination D51.
  • the directions of illumination or image capture are, of course, returned or not.
  • the support 55 of the reference lens 100 is designed such that the reference lens 100 extends in a general plane transverse to the direction of illumination D51. The lens 100 is then illuminated in front.
  • the reference lens 100 has an edge 120 which has a front edge 121 and a rear edge 122.
  • the edge 120 is cylindrical with an axis parallel to the direction of illumination and image capture and therefore here perpendicular to the acquisition plan.
  • the edge 120 could, however, be of different shape, in particular conical or similar, so that its projection on the acquisition plane would no longer be wired and the projections of its edges 121, 122 would no longer be confused but distinct.
  • the general plane of the lens typically consists of a middle or medial plane of one and / or the other of the surfaces of the lens, or a middle or medial plane of one and / or the other of the edges 121, 122 of its edge 120.
  • the support 55 of the lens 100 is here in the form of a transparent glass plate perpendicular to the illumination direction D 51, so that neither the front face 98 nor the rear face 99 of the reference lens 100 are visually hidden by the support 55.
  • This reference lens 100 here comprises two referent drilling holes, a first reference drilling hole 110 located on the side of the temporal zone and another drilling hole (not visible on the figure 1 ) located on the side of the nasal area of the lens.
  • the remainder of the description details only the acquisition of the reference drilling hole 110, but this description applies also to the acquisition of the other hole of drilling. Alternatively, if this lens had a greater number of drill holes, the following description would also apply to the additional drill holes.
  • the reference drilling hole 110 comprises, on the one hand, a front mouth 111 which opens on the front face 98 of the lens 100 and, on the other hand, a rear mouth 112 which opens on the rear face 99 of the lens 100.
  • the center C2 of the reference drilling hole 110 itself is also defined, which is also the average of the positions of the centers C1, C3 of the front mouthpieces 111 and rear 112.
  • the point C1 of the front mouth 111 of the drilling hole referent 110 will be considered here as a reference drilling point.
  • the image capturing means 53 ( figure 1 ) further communicate with an electronic and computer processing system 54.
  • the processing system 54 is adapted to derive from the acquired image the position of the center C1 of the mouth 111 of the referencing borehole 110. on the front face 98.
  • the processing system 54 may also be designed to deduce from the acquired image, the position of the center of the mouth 112 of the reference drilling hole 110 on the rear face 99, or any another point attached to this piercing hole defines as the referent piercing point.
  • the drilling hole position acquisition device is designed such that the camera 53 sees the lens in projected vision.
  • the lighting means 51, 52 and the camera 53 are distributed on either side of the support of the lens.
  • a frosted glass plate 50 is disposed between the camera 53 and the support 55 of the lens.
  • the frosted glass plate 50 is centered on the axis A52 of the collimating lens 52 and extends in the plane transverse to this axis A52.
  • the frosted glass plate 50 makes it possible to form the shadow of the assembly of the reference lens 100 and in particular the shadow of the reference drilling hole 110 of the lens.
  • the front face of this frosted glass plate 50 then forms an acquisition plane P1 of the image of the reference lens 100. This acquisition plane is parallel to the general plane of the reference lens 100.
  • the processing system 54 determines, from the image of the contour of the reference lens 100, a virtual rectangular frame 107, each of whose four edges passes through a single point of the projected image of the contour of the reference lens 100.
  • the considered contour of the reference lens 100 typically consists of one of the front 121 and rear 122 edges of the edge 120 of the reference lens 100, or an average of these two edges, in correspondence with the definition adopted for the reference drilling point.
  • Two edges of the frame 108, 109 are, under the conditions of the worn, horizontal and thus form lines of horizon.
  • the processing system calculates the intersection of the diagonals of this frame 107 which constitutes the projected image of a geometric center of the contour of the reference lens 100 called boxing center CB.
  • the processing system 54 also operates a treatment of the shadow image (or projection) of the reference drilling hole 110 of the reference lens 100.
  • This image represented on the lower part of the figure 2 shows an overall figure 90 of the reference drilling hole 110.
  • the overall figure 90 of the reference drilling hole 110 comprises two rings 40, 41, of substantially oval shape, which intersect each other.
  • the first ring 40 is the projected shadow of the mouth 111 on the front face of the reference drilling hole 110
  • the second ring 41 is the projected shadow of the mouth 112 on the rear face.
  • the portion constituted by the superposition of the two rings 40, 41 is clear. Indeed, this portion is the result of the projection of a portion of the reference drilling hole which is crossed by the light rays without meeting the material of the lens. Conversely, the non-superposed portions of the two rings are dark because of the reflection or diffusion of these rays by the side wall of the piercing hole.
  • the point 102 of the reference drilling hole 110 results from the intersection between, on the one hand, a cutting plane P3 and, on the other hand, the portion of the contour of the mouth 111 in the front face 98 of the reference hole 110 of the reference lens 100, located outwards of this lens.
  • the point 101 is defined as the point of intersection of the sectional plane P3 of the reference lens 100 with the portion of the contour of the mouth 111 on the front face 98 of the reference lens, located towards the inside of this lens.
  • Points 105 and 104 are defined as the points of intersection of the section plane P3 with the portion of the mouth 99 on the rear face 99 of the reference lens, located respectively outwardly and inwardly of this lens.
  • the processing system 54 operates from the image acquired in projection. For this purpose, as shown on the lower part of the figure 2 , we define a reference anchor line D3 which is the straight line passing through the centers of the two rings 40, 41 and which is identified as such by the processing system 54. This reference anchor line D3 corresponds to the trace in the acquisition plane P1 of the previously defined cutting plane P3.
  • the points M1 and M2 are then identified by the processing system 54 as points of intersection of the reference anchor line D3 with respectively the right (inner) and left (outer) parts of the ring 40 as represented on the figure 2 . These points M1 and M2 are the image points of the points 101 and 102. Similarly, the points M4 and M5 are identified by the processing system 54 as intersection points of the line D3 with the right (interior) parts respectively. and left (outer) second ring 41. These points M4 and M5 are the image points of the points 104 and 105. Note XM1, XM2, XM4, XM5 the positions of the points M1, M2, M4, M5 on the right D3.
  • the processing system 54 identifies the point MO1 which is situated at the intersection of the reference anchor line D3 with the contour image M121 of the reference lens 100.
  • This point MO1 is the projection of a point of reference.
  • reference anchor O1 which is located at the intersection of the section plane P3 and the front edge 121 of the reference lens 100.
  • the line D3 thus forms a linear guide whose origin is the MO1 point.
  • a reference anchor line D4 which passes through the projected MC2 of the center C2 of the reference drilling hole 110 and which is horizontal in range condition, that is to say parallel to the horizon lines 108, 109 of the frame 107.
  • the processing system then identifies the reference anchor point 04 of the reference lens 100 as the point whose projected MO4 is located at the intersection of a reference anchor line D4 and the contour image M121 of the reference lens 100.
  • the point MC1 is the image point of the center C1, projected in the acquisition plane P1, whose position XMC1 on the line D3 is to be calculated.
  • the position XMC1 of the center C1 then makes it possible to determine the distance R1 separating the point MC1 from the origin MO1 of the linear mark. This distance R1 is called reference projection distance.
  • a first method it is intended to determine the position XM90 of the center M90 of the overall figure 90 of the reference drilling hole 110 and to deduce the position of the image MC1 from the center C1 of the mouthpiece 111 in FIG. front face 98 of this drilling hole.
  • the processing system 54 includes a user interface and a display screen (not shown) which displays the overall image 90 of the referencing borehole 110.
  • the processing system 54 is also designed to enable display on the display. 60.
  • This ring has dimensions that can be modified by the operator.
  • the processing system 54 is also designed such that this registration ring 60 is movable by the operator on the display screen. The displacement of the registration ring 60 as well as the adjustments of its dimensions can be obtained using control tools integrated in the user interface of the processing system 54.
  • the operator sizes and centers the registration ring 60 on the overall image 90 of the reference drilling hole 110.
  • the operator can, for example as illustrated by the figure 2 overlay the registration ring 60 in the overall figure 90 so that the registration ring 60 passes through the media segments M1M4 and M2M5.
  • the optician may alternatively provide for adjusting the position and the dimension of the registration ring 60 to make it pass through the points M1 and M5 bordering the clear part of the overall figure 90. It can further adjust the position and the dimension of the registration ring 60 to make it pass through the points M2 and M4 bordering the dark part of the overall figure 90.
  • the processing system 54 automatically detects and stores the position of the center M60 of the registration ring 60.
  • the position of the center M60 is associated by the processing system 54 at position XM90 of center M90 of FIG.
  • the operator points on the screen, with a tool integrated in the user interface such as a mouse or a stylus, the center M60 of the registration ring 60 which is then stored.
  • a tool integrated in the user interface such as a mouse or a stylus
  • the processing system 54 calculates the position XMC1, on the line D3, of the image MC1 of the center C1 of the front mouth of the reference drilling hole 110 from the position of the center M90 of said overall figure 90 and as a function of the inclination angle ALPHA100 of the reference drilling hole 110 and the thickness E of the lens.
  • the angle of inclination ALPHA100 is the angle formed between the average direction of illumination D51 and the axis A110 of the reference drilling hole.
  • the angle ALPHA100 and the thickness E of the lens can be measured by probing the lens, for example, or can be entered manually by the operator using an on-screen input interface provided for this purpose. .
  • the considered thickness of the lens may be the local thickness of the lens around the reference drill hole or the average thickness of the lens.
  • the processing system 54 then associates said calculated position with the desired position of the center C1 of the mouth of the reference drilling hole 110 opening on the front face 98 of the lens 100.
  • the detection of the center M60 of the registration ring 60 is performed automatically by the processing system 54, which is then designed to superimpose (with appropriate centering and sizing) automatically the register ring 60 on the overall image 90 of the reference drilling hole 110 and thus deduce the position and the diameter of the center M60 of this ring.
  • the distance R1 taking into account the prismatic deviations induced by the reference lens 100 (the image of the point 102 is deflected by the reference lens 100) or from only easily recognizable positions of points M1 and M2.
  • Such variants of methods for acquiring the distance R1 are more precisely set out in the French patent application. FR 06/11124 .
  • the thickness E of the lens can be measured for example by probing or be fixed at an average value of about 2 millimeters.
  • the distance R1 separating the projected MO1 from the reference anchor point O1 of the reference lens 100 and the projected MC1 from the center C1 of the mouth opposite before the reference drilling hole 110 is known.
  • the ALPHA100 angle of inclination of the drilling axis A110 of the reference drilling hole 110 with respect to the illumination axis D51 is also known.
  • the processing system 54 then proceeds to calculate a reference three-dimensional distance R2 separating, in space and not in projection, the reference anchor point O1 of the reference lens 100 and the center C1 of the mouthpiece on the front face of the reference drilling hole 110. Because of the curve of the reference lens 100, the distances R1 and R2 are indeed different.
  • the reference anchor point O1, the center C1 of the mouthpiece on the front face of the reference drilling hole 110 and their respective projections in the acquisition plane P1 are coplanar (in the radial plane P3 corresponding to the section plane of the lower part of the figure 3 ).
  • This reference three-dimensional distance R2 is then that which, when it is carried over any target correction lens having a curve identical to or different from the curve of the reference lens 100, makes it possible to determine the position at which it will be necessary to pierce the correction lens so that the bridge or branch of the selected frame can hang easily on this correction lens.
  • This reference three-dimensional distance R2 must, however, be reported following the curvature of the front face of the correction lens concerned. It is therefore necessary to take into account the curve of the correction lens 200.
  • the processing system 54 then proceeds to the identification of a target piercing point C10 on the front face 198 of the correction lens 200 to which the correction lens 200 will have to be pierced.
  • This target piercing point C10 corresponds here to the center of the mouth on the front face of the target drilling hole 210 to be made on the correction lens 200.
  • the optician Prior to identifying the position of this target piercing point C10, the optician centers the correction lens 200.
  • This centering consists of determining the position that the correction lens will occupy on the frame selected by the wearer. , in order to be properly centered facing the pupil of the eye of the wearer to properly perform the optical function for which it was designed. This operation therefore consists in correctly positioning on the correction lens 200 the final contour according to which it will have to be cut off.
  • the geometry of this final contour is known, since this final contour is identical to the acquired contour of the reference lens 100.
  • the optician initially equips the wearer of a frame of reference glasses identical to the frame chosen by the wearer and provided with reference lenses, then he determines on each reference lens the position of the point. pupillary disposed opposite the pupil of the corresponding eye of the wearer. More specifically, it measures or conventionally acquires two parameters related to the morphology of the wearer, namely the interpupillary half-gaps defined as the distances between each of the wearer's pupils and the center of the nose, as well as the heights of his pupils by relation to the contour. The knowledge of these parameters allows him to locate the position of the contour of the reference lens relative to the pupillary point of the wearer.
  • the optician disposes the correction lens 200 in a lighting and image acquisition device such as for example that previously described and shown in FIG. figure 1 . It thus acquires the image of the correction lens 200 not cut out in a centering plane corresponding to the acquisition plane P1.
  • this correction lens 200 is provided with erasable visible marks 202, 203 which appear on the acquired image.
  • the correction lens 200 has in particular a visible mark 203 which corresponds to the optical centering point of the correction lens to be positioned facing the pupil of the eye of the wearer.
  • the optician Knowing the position of the pupillary point relative to the final contour 201, the optician virtually superimposes the pupillary point on the optical centering point 203 of the correction lens 200 and thus positions the final contour 201 on the correction lens 200. This positioning by orienting the final contour 201 with respect to the correction lens 200 as a function of the optical prescriptions of the wearer (in particular according to the prescribed cylinder axis). It thus determines on the correction lens 200 the position of the final contour 201 according to which the lens will have to be cut off.
  • the processing system 54 can therefore memorize and display on the screen 50 the image of the correction lens 200 uncut as well as, superimposed on this image, the image of the final contour 201.
  • one point of the correction lens 200 it is the homologue of a point of the reference lens 100 if, on the one hand, these two points are arranged on the front optical faces or the corresponding backs of the two lenses, and if, on the other hand, when the image of the contour of the reference lens 100 and the image of the final contour of the correction lens 200 are virtually superimposed, the images of these two lenses points are confused.
  • the point O2 is in this case located on the front face of the target correction lens 200 and on its final contour 201.
  • the position of the target anchor point O2 of the target correction lens 200 is then known.
  • the curves of the reference lenses 100 and correction 200 are not identical, the point C10 is not the homologue of the point C1 in the previously defined sense.
  • a characteristic of the overall shape of the target correction lens 200 is determined.
  • the angle ALPHA200 of the axis A210, in which the target correction lens 200 is to be pierced, can typically be defined with respect to the illumination direction D51 (this angle is characteristic of the curve of the target correction lens 200 at piercing point C10). This angle then constitutes said characteristic of the desired curve.
  • a first method for determining this angle ALPHA200 is to feel the front face 198 of the lens.
  • target correction lens 200 in a local area estimated to be close to the position the point of C10 drilling to position. More precisely, this method consists first of all in defining an approximate point C11 a priori located near the piercing point C10. This approximate point C11 is here chosen as being the homologous point of the point C1 of the reference lens 100. Then, the front face of the correction lens 200 is probed at three distinct points located less than 10 millimeters from the point approached C11.
  • the processing system 54 can thus determine the orientation of the plane tangent to the front face of the correction lens 200 at the approximate point C11.
  • the orientation of this plane with respect to the acquisition plane P1 is substantially identical to the orientation that would present the plane tangent to the front face of the correction lens 200 at the piercing point C10 with respect to this same acquisition plane.
  • the angle of inclination of this tangent plane with respect to the acquisition plane P1 corresponds to the angle ALPHA200 which can thus be calculated with precision.
  • the overall curvature of one of the optical faces 198, 199, in this case the front face 198, of the target correction lens 200 is identified on the face an approximate point C11 adjacent to the target piercing point C10 of the target pierce hole 210, and an inclination angle ALPHA200 of the optical face 198 is calculated as a function of said overall curvature and the position of the approximate point C11.
  • the processing system 54 identifies the approximate point C11 for example as the point whose projectile MC11 in the centering plane has a position homologous to that of the projected MC1 of the reference drilling point C1 of the reference drilling hole 110 in the plane of P1 acquisition.
  • the angle ALPHA200 can be determined otherwise.
  • the optician can measure it manually on the lens and then enter it using an on-screen input interface 50 provided for this purpose.
  • the angle ALPHA200 can also be calculated by the treatment system 54 from the calculated position of the approximate point C11 and the base of the lens which is generally supplied to the optician by the lens manufacturer and that the optician will have taken care to enter using the on-screen input interface.
  • R is the distance, projected in the acquisition plane P1, from the center C10 to the geometric center of the contour of the correction lens (obtained by image processing), B being the base of the lens, and n being the index of the lens.
  • the base of the lens can be entered manually by the operator using an on-screen input interface, or obtained, for example, by a spherometer.
  • the processing system 54 can then calculate, by means of a trigonometric relationship, the target projection distance R3 to be separated in the centering plane similar to the acquisition plane P1 from the projected point MC10. for the target three-dimensional distance R2 separating the target anchor point O2 from the target piercing point C10 to be equal to the distance R2.
  • the processing system can calculate the three-dimensional position of the target piercing point C10 by transferring the reference three-dimensional distance R2 from the target anchor point 02 to the target correction lens 200.
  • This transfer is carried out substantially according to the local inclination of the relevant face (here, the front face) of the target correction lens 200, that is to say substantially in a transfer direction connecting the target anchor point 02 to the target piercing point C10, as illustrated by the figure 3 .
  • a conventional grinder or drill with a drill bit may drill the target drill hole 210 in the correction lens so that lens is perfectly mountable on the frame without circle selected by the future carrier.
  • the method is identical to that described above, with the difference that it is necessary to define the anchoring points O1 and O2 and the points of reference C1 and drilling C10 as belonging to the rear face 199 of the correction lens 200.
  • Some eyeglass frames differ from the one previously studied in that they require, for fixing a branch or a bridge on a lens, two drilling holes.
  • the reference lens 100 has four holes of referent drilling, including two referent drilling holes 110, 150 located on the side of its temporal area and two other drilling holes (not shown) located on the side of its nasal area.
  • the correction lens shown on the upper part of the figure 8 is intended to be pierced with two target drilling holes 210, 250 on the side of its temporal area and two other drilling holes (not shown) on the side of its nasal area.
  • the method for determining the position of the two target drilling holes 210, 250 of the correction lens 200 is similar to that previously discussed for a lens having two piercing holes.
  • the processing system 54 determines, on the reference lens 100, on the one hand, the distance R1 separating, in the acquisition plane P1, the projected MO1 from the reference anchor point O1 and the projected MC1 from the center C1 by front face of the mouth of the first reference drilling hole 110, and, secondly, the distance R4 separating, in the acquisition plane P1, the projected MC1 from the center in front of the mouth of the first hole of reference drilling 110 and projected MC5 from the center on the front face of the mouth of the second reference drilling hole 150.
  • the method for determining the distance R1 is strictly identical to that previously described with the same references for a lens with two holes drilled isolated from each other.
  • the method for determining the distance R4 differs therefrom in that the reference anchor point from which the distance R4 is measured corresponds to the projected MC1 of the center C1 of the first reference drilling hole 110.
  • the technique is otherwise identical and will not be described in more detail. It also makes it possible to acquire the angle ALPHA150 between the lighting direction D51 and the axis A150 of the second referent drilling hole 150. As a variant, the calculation of this angle can be avoided by making the approximation that the angles ALPHA100 and ALPHA150 are equal.
  • the processing system 54 then proceeds to calculate, on the one hand, the distance R2 separating the reference anchor point O1 from the reference lens 100 and the center C1 of the mouthpiece on the front face of the first reference drilling hole. 110, and, on the other hand, the distance R5 separating the centers C1 and C5 from the mouths on the front face of the first and second referential drilling holes 110, 150.
  • the processing system 54 proceeds to identify, on the front face 198 of the target correction lens 200, the target piercing points C10, C15 to which it will be necessary to pierce the correction lens 200.
  • the identification of the piercing point C10 is here also carried out according to a method identical to that described for a lens with two piercing holes.
  • the identification of the piercing point C15 is carried out by taking the piercing point C10 as the target anchor point of the target correction lens 200.
  • the objective of this identification is to determine in the acquisition plane P1 the position of the projected MC15 of the drilling point C15.
  • the angular position of the piercing point C15 and its projected MC15 around the axis A52 of the correction lens 200 are known since they both belong to the radial plane P4 considered. It remains to determine the distance R6 separating, in the acquisition plane P1, the projectile MC10 from the drilling point C10 and the projected MC15 from the drilling point C15.
  • the angle ALPHA250 of the axis A250 it is necessary to define, with respect to the lighting direction D51, the angle ALPHA250 of the axis A250 according to which the lens must be pierced by the second target hole 250.
  • the determination of this angle can be carried out by a similar way to one of those presented to determine the angle ALPHA200.
  • the processing system 54 calculates, by means of a trigonometric relationship, the distance R6 to be separated in the acquisition plane P1 from the projected MC15 from the drilling point C15 and the projected MC10 from the piercing point C10, so that the distance in the space between the piercing point C10 and the piercing point C15 is equal to the distance R5.
  • the piercing points C10, C15 are perfectly located in the acquisition plane P1. Since the orientations of the axes A210 and A250 of the target drill holes 210, 250 are also known, a conventional grinder or drill with a drill bit can drill the target drill holes 210, 250 into the correction lens 200. so that this lens is perfectly mountable on the frame without circle selected by the future carrier.
  • the reference lens 100 is seen by the camera 53 in direct vision.
  • the camera 53 is arranged such that the optical axis of its objective is parallel to the direction of illumination and the optical center of its objective is located at the focus 51 of the collimation lens 52.
  • a set of backlighting composed of a matrix of light sources such as LEDs 56 and a diffusion plate 57, is arranged on the side of the support plate 55 opposite to the lens 100.
  • the camera 53 then sees directly, that is to say without intermediate projection screen, the reference lens 100 on the front face.
  • the lens of the camera acquires the image of the lens in an acquisition plane orthogonal to the image capture direction A52.
  • This acquisition plan is not identifiable here on the structure of the device. It corresponds here to the image plane P2 of the collimation lens 52. It is indeed in this image plane P2 that a clear image of the reference lens 100 seen by the collimating lens 52 is formed.
  • the base of the lens can be entered manually by the operator using an on-screen input interface, or obtained, for example, by a spherometer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Eyeglasses (AREA)
  • Drilling And Boring (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Prostheses (AREA)

Claims (14)

  1. Verfahren zur Bestimmung der Position eines in einem Zielbrillenglas (200) mit einer nach dem Zuschneiden vorgesehenen Zielkontur (220) zu erzeugenden Zielbohrlochs (210,250), ausgehend von einem Referenzbrillenglas (100) mit einer Referenzkontur (120) und mindestens einem Referenzbohrloch (110, 150), das folgende Arbeitsschritte umfasst:
    - Erfassen eines Bildes des Referenzbrillenglases (100) mit insbesondere einem Bild seiner Referenzkontur (120) und einem Bild seines Referenzbohrloches (110, 150) in einer Erfassungsebene (P1,P2);
    - Ableiten der Position eines Zielbohrpunktes (C10,C15) für das Zielbohrloch (210, 250) des Zielbrillenglases (200) in Bezug zur Zielkontur (220),
    dadurch gekennzeichnet, dass es folgende Arbeitsschritte umfasst:
    - Erfassen von mindestens einem Merkmal der Wölbung (ALPHA100; ALPHA150) des Referenzbrillenglases (100);
    - Bestimmen in der Erfassungsebene (P1; P2) der Referenzdistanzprojektion (R1; R4) zwischen der Projektion (MO1,MC1) eines Referenzverankerungspunktes (O1,C1) des Referenzbrillenglases (100) in Verbindung mit der Referenzkontur (120) und der Projektion (MC1, MC5) eines Referenzbohrpunktes (C1,C5) des Referenzbohrloches (110,150);
    - Berechnen der dreidimensionalen Referenzdistanz (R2,R5) zwischen dem Referenzverankerungspunkt (O1,C1) des Referenzbrillenglases (100) und dem Referenzbohrpunkt (C1,C5) des Referenzbohrloches (110,150) in Abhängigkeit des besagten Merkmals der Wölbung (ALPHA100, ALPHA150) des Referenzbrillenglases (100) und der bestimmten Referenzdistanzprojektion (R1,R4);
    - Bestimmen der Position des Zielbohrpunktes (C10, C15) für das Zielbohrloch (210, 250) des Zielbrillenglases (200) in Abhängigkeit der berechneten dreidimensionalen Referenzdistanz (R2, R5).
  2. Verfahren nach dem vorausgehenden Anspruch, bei dem man zum Bestimmen der Position des Zielbohrpunktes (C10, C15) für das Zielbohrloch (210, 250) einen Zielverankerungspunkt (O2,C10) des Zielbrillenglases (200) identifiziert, der zum Referenzverankerungspunkt (O1, C1) des Referenzbrillenglases (100) homolog ist und man die Position des Zielbohrpunktes (C10,C15) in Abhängigkeit dieses Zielverankerungspunktes (O2,C10) und der dreidimensionalen Referenzdistanz (R2,R5) berechnet.
  3. Verfahren nach vorausgehendem Anspruch, bei dem der Referenzverankerungspunkt (O1,C1) und der Referenzbohrpunkt (C1,C5) derselben Referenzseite des Referenzbrillenglases (100) angehören und der Zielverankerungspunkt (02, C10) und der Zielbohrpunkt (C10, C15) derselben Zielseite des Zielbrillenglases (200) angehören, wobei sich die besagte Referenzseite und die besagte Zielseite entsprechen.
  4. Verfahren nach einem der Ansprüche 2 und 3, bei dem man zum Berechnen der Position des Zielbohrpunktes (C10, C15) ausgehend vom Zielverankerungspunkt (O2,C10) auf das Zielbrillenglas (200) die dreidimensionale Referenzdistanz (R2,R5) überträgt, indem man im Wesentlichen eine Übertragungsrichtung verfolgt, die den Zielverankerungspunkt (O2, C10) mit dem Zielbohrpunkt (C10,C15) verbindet.
  5. Verfahren nach einem der Ansprüche 2 und 3, bei dem man zum Berechnen der Position des Zielbohrpunktes (C10,C15) mindestens ein Merkmal der Wölbung (ALPHA200, ALPHA250) des Zielbrillenglases (200) bestimmt und man die Zielprojektionsdistanz (R3,R6) in einer zur Erfassungsebene (P1,P2) analogen Zentrierebene berechnet, zwischen der Projektion (MC10,MC15) des Zielbohrpunktes (C10,C15) für das Zielbohrloch (210,250) des Zielbrillenglases (200) und der Projektion (MO2, MC10) des Zielverankerungspunktes (O2,C10) dieses Zielbrillenglases (200), in Abhängigkeit der dreidimensionalen Referenzdistanz (R2, R5) und des Merkmals der Wölbung (ALPHA200,ALPHA250) des Zielbrillenglases (200).
  6. Verfahren nach vorausgehendem Anspruch, bei dem man zum Bestimmen des Merkmals der Wölbung (ALPHA200,ALPHA250) des Zielbrillenglases (200) auf einer der Optikseiten (198, 199) des Zielbrillenglases (200) einen Annäherungspunkt (C11) in der Nähe des Zielbohrpunktes (C10,C15) für das Zielbohrloch (210,250) identifiziert, die Optikseite (198,199) des Zielbrillenglases (200) an mindestens drei Punkten in der Nähe des Annäherungspunktes (C11) abtastet, wovon ein Neigungswinkel (ALPHA200,ALPHA250) der Optikseite (198,199) des Brillenglases (200) am Näherungspunkt (C11) in Bezug zur Zentrierebene (P1) abgeleitet wird, wobei dieser Winkel das Merkmal der gesuchten Wölbung bildet.
  7. Verfahren nach Anspruch 5, bei dem man zum Bestimmen des Merkmals der Wölbung (ALPHA200, ALPHA250) des Zielbrillenglases (200) die globale Krümmung einer der Optikseiten (198,199) des Zielbrillenglases (200) erfasst, man anschließend auf einer der Optikseiten (198,199) des Zielbrillenglases (200) einen Annäherungspunkt (C11) in der Nähe des Zielbohrpunktes (C10,C15) für das Zielbohrloch (210,250) identifiziert und in Abhängigkeit der globalen Krümmung und der Position des Annäherungspunktes (C11) einen Neigungswinkel (ALPHA200,ALPHA250) der Optikseite (198,199) des Zielbrillenglases (200) am Annäherungspunkt (C11) in Bezug zur Zentrierebene (P1) berechnet, wobei dieser Winkel das Merkmal der gesuchten Wölbung darstellt.
  8. Verfahren nach vorausgehendem Anspruch, bei dem das Bild des Zielbrillenglases (200) auf der Zentrierebene (P1) erfasst wird und man den Annäherungspunkt (C11) als den Punkt identifiziert, dessen Projektion (MC11) auf der Zentrierebene (P1) eine homologe Position zur Position der Projektion (MC1,MC5) des Referenzbohrpunktes (C1,C5) für das Referenzbohrloch (110,150) auf der Erfassungsebene (P1) hat.
  9. Verfahren nach einem der vorausgehenden Ansprüche, bei dem man den Referenzverankerungspunkt (O1) des Referenzbrillenglases (100) als den Punkt identifiziert, dessen Projektion (MO1) auf der Erfassungsebene sich am Schnittpunkt zwischen einer projizierten Konturlinie (M121), die auf die Projektion einer (121) der vorderen und hinteren Kanten (121,122) des Randes (120) der Referenzbrille (100) oder eines Durchschnitts dieser Kanten zurückgeht, und einer Referenzverankerungslinie (D3,D4), die durch die Projektion (MC1) des Referenzbohrpunktes (C1) für das Referenzbohrloch (110) führt, befindet.
  10. Verfahren nach vorausgehendem Anspruch, bei dem die Referenzverankerungslinie (D3) durch die Projektion (CB) eines Geometriezentrums (CB) des Referenzbrillenglases (100) führt oder die zur Horizontlinie (108,109) des Referenzbrillenglases (100) parallel ist.
  11. Verfahren nach einem der Ansprüche 9 und 10 in Abhängigkeit des Anspruches 2, bei dem man den Zielverankerungspunkt (O2) des Zielbrillenglases (200) als den Punkt identifiziert, dessen Projektion (MO2) in einer zur Erfassungsebene (P1,P2) analogen Zentrierebene eine homologe Position wie die Position der Projektion (M01) des Referenzverankerungspunktes (O1) des Referenzbrillenglases (100) in der Erfassungsebene (P1) bildet.
  12. Verfahren nach einem der Ansprüche 9 bis 11 in Abhängigkeit des Anspruches 2, bei dem man zum Bestimmen der Position des Zielbohrpunktes (C10,C15) davon ausgeht, dass die Projektion (MC10,MC15) dieses Punktes in einer zur Erfassungsebene (P1,P2) analogen Erfassungsebene einer Zielverankerungslinie (D5,D6) angehört, die zur Referenzverankerungslinie (D3, D4) homolog ist.
  13. Verfahren nach einem der Ansprüche 1 bis 8, bei dem das Referenzbrillenglas (100) zwei angrenzende Referenzbohrlöcher (110,150) umfasst, die dazu bestimmt sind, einen selben Bügel oder einen selben Nasensteg einer Brillenfassung zu halten, mit einem ersten Referenzbohrloch (110) und einem zweiten Referenzbohrloch (150), wobei das Zielbrillenglas (200) zwei zu realisierende Zielbohrlöcher (210,250) aufweist, darunter ein erstes Zielbohrloch (210), das dem ersten Referenzbohrloch (110) des Referenzbrillenglases (100) entspricht und dessen Position bereits identifiziert ist und ein zweites Zielbohrloch (250), wobei der Referenzverankerungspunkt des Referenzbrillenglases (100) zum Bestimmen des zweiten Zielbohrloches (250) durch den Referenzbohrpunkt (C1) des ersten Referenzbohrloches (110) gebildet wird.
  14. Verfahren nach vorausgehendem Anspruch in Abhängigkeit von Anspruch 2, bei dem der Zielverankerungspunkt des Zielbrillenglases (200) aus dem Zielbohrpunkt (C10) des ersten Zielbohrlochs (210) besteht.
EP07872398A 2006-12-20 2007-12-19 Verfahren zur bestimmung der position eines in einem brillenglas zu erzeugenden bohrlochs Not-in-force EP2091690B9 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0611124A FR2910644B1 (fr) 2006-12-20 2006-12-20 Dispositif de determination de la position et/ou d'une dimension transversale d'un trou de percage d'une lentille de presentation de lunettes a monture sans cercle
FR0701554A FR2910646B1 (fr) 2006-12-20 2007-03-02 Procede de determination de la position d'un trou de percage a realiser sur une lentille ophtalmique
PCT/FR2007/002111 WO2008093016A1 (fr) 2006-12-20 2007-12-19 Procédé de détermination de la position d'un trou de perçage à réaliser sur une lentille ophtalmique

Publications (3)

Publication Number Publication Date
EP2091690A1 EP2091690A1 (de) 2009-08-26
EP2091690B1 EP2091690B1 (de) 2010-04-21
EP2091690B9 true EP2091690B9 (de) 2010-09-08

Family

ID=39493739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07872398A Not-in-force EP2091690B9 (de) 2006-12-20 2007-12-19 Verfahren zur bestimmung der position eines in einem brillenglas zu erzeugenden bohrlochs

Country Status (6)

Country Link
US (1) US8300983B2 (de)
EP (1) EP2091690B9 (de)
AT (1) ATE464975T1 (de)
DE (1) DE602007006049D1 (de)
FR (1) FR2910646B1 (de)
WO (1) WO2008093016A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0527047Y2 (de) * 1987-08-10 1993-07-09
DE102008060590B4 (de) 2008-12-05 2014-09-04 Schneider Gmbh & Co. Kg Verfahren und Vorrichtung zur Randvermessung von optischen Linsen
JP6746894B2 (ja) * 2015-11-04 2020-08-26 株式会社ニデック 軸出し装置および軸出し位置設定プログラム
US9905026B1 (en) * 2016-09-14 2018-02-27 The Boeing Company Photogrammetric identification of locations for performing work
US12097560B2 (en) 2021-05-07 2024-09-24 Transportation Ip Holdings, Llc Body and method for locating machining features in additively manufactured parts
CN116612101B (zh) * 2023-05-31 2023-11-21 广州市盛通建设工程质量检测有限公司 锚固件锚固过程中的可视化控制方法、装置、设备及存储介质

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804428A1 (de) * 1998-02-05 1999-08-19 Wernicke & Co Gmbh Verfahren zum Markieren oder Bohren von Löchern in Brillengläsern und Vorrichtung zur Durchführung des Verfahrens
JP3247687B1 (ja) * 2001-05-23 2002-01-21 株式会社タケダ企画 縁無眼鏡におけるレンズ連結装置
US6951627B2 (en) * 2002-04-26 2005-10-04 Matsushita Electric Industrial Co., Ltd. Method of drilling holes with precision laser micromachining
FR2865046B1 (fr) * 2004-01-08 2006-03-10 Frederic Dupuy Dispositif pour le percage de verres et la finition des vis d'assemblage et son procede associe
JP2006189472A (ja) * 2004-12-28 2006-07-20 Nidek Co Ltd 眼鏡レンズ加工装置
JP4708035B2 (ja) * 2005-01-06 2011-06-22 株式会社ニデック 眼鏡レンズ加工装置
JP5085898B2 (ja) * 2006-07-31 2012-11-28 株式会社ニデック 眼鏡レンズ加工装置

Also Published As

Publication number Publication date
ATE464975T1 (de) 2010-05-15
EP2091690B1 (de) 2010-04-21
US8300983B2 (en) 2012-10-30
WO2008093016A1 (fr) 2008-08-07
DE602007006049D1 (de) 2010-06-02
EP2091690A1 (de) 2009-08-26
FR2910646A1 (fr) 2008-06-27
FR2910646B1 (fr) 2009-02-27
US20100074556A1 (en) 2010-03-25

Similar Documents

Publication Publication Date Title
EP2139642B1 (de) Vorrichtung und verfahren zur herstellung einer ophthalmischen linse zur maschinellen verarbeitung
EP2134249B1 (de) Verfahren zur messung der position des drehpunkts im auge einer person auf der horizontalen sagittalebene
EP1817562B9 (de) Einrichtung zum automatischen messen von kenngrössen einer brillenlinse
EP2091690B9 (de) Verfahren zur bestimmung der position eines in einem brillenglas zu erzeugenden bohrlochs
EP2091689B1 (de) Vorrichtung zur bestimmung der position und/oder der querabmessung eines bohrlochs in einer linse zur herstellung von brillen mit randlosem rahmen
CA2929942A1 (fr) Methode de determination d'au moins un parametre de conception optique d'une lentille ophtalmique progressive
EP1338382B1 (de) Verfahren zum Aufbringen eines Halteteils auf einen optischen Linsenrohling
EP1866694B1 (de) Verfahren zum zentrieren einer brillenlinse an einem randlosen rahmen
EP2027968B1 (de) Verfahren zur Bestimmung der Parameter für die Trägerherstellung einer Kontaktlinse
CA2956030C (fr) Procede d'elaboration d'une consigne de detourage d'une lentille optique
EP2150375B1 (de) Konturfräsverfahren für brillengläser mittels ablesen und aktualisierung eines datenbankregisters für linsen und/oder fassungen
EP2196845B1 (de) Verfahren zur Vorbereitung einer ophthalmischen Linse zwecks ihres Einbaus in eine gewölbte Brillenfassung
EP2380701B9 (de) Method for trimming an ophthalmic spectacle lens
WO2006061477A1 (fr) Procede et dispositif de preparation automatique au montage d'une lentille ophtalmique au moyen d'une paire de nez de prehension transfert et blocage
WO2012160273A1 (fr) Procède et dispositif de détermination d'au moins un paramètre d'ajustement personnalise d'une lentille portee par une monture de lunettes en regard de l'œil d'un porteur
WO2007128925A1 (fr) Procédé de centrage d'une lentille ophtalmique sur une monture de lunettes cambrée
EP3172011B1 (de) Maschine zur erfassung von bildern optischer linsen und verfahren zum besäumen von optischen linsen
FR3013620A1 (fr) Procede de biseautage d'une lentille ophtalmique
WO2006061475A1 (fr) Methode de blocage d'une lentille ophtalmique en vue de son detourage et dispositif de preparation automatique au montage d'une lentille ophtalmique
EP1882207B1 (de) Verfahren zum aufzeichnen von geometrischen kenngrössen einer zweiten linse mittels abtasten einer ersten linse, wobei beide linsen aus derselben charge stammen
EP4116762A1 (de) Vorrichtung zur unterstützung der herstellung eines endgültigen korrekturlinsenglases und entsprechendes verfahren

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090513

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

DAX Request for extension of the european patent (deleted)
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REF Corresponds to:

Ref document number: 602007006049

Country of ref document: DE

Date of ref document: 20100602

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20100421

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20100421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100801

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100821

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100823

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

26N No opposition filed

Effective date: 20110124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100722

BERE Be: lapsed

Owner name: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQ

Effective date: 20101231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101219

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101022

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111231

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111231

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20121207

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100721

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20131219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131219

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602007006049

Country of ref document: DE

Representative=s name: 24IP LAW GROUP SONNENBERG FORTMANN, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 602007006049

Country of ref document: DE

Owner name: ESSILOR INTERNATIONAL, FR

Free format text: FORMER OWNER: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), CHARENTON-LE-PONT, FR

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: ESSILOR INTERNATIONAL, FR

Effective date: 20180601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20181226

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20181231

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602007006049

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191231

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200701