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EP1436119B2 - Dispositif et procede pour l'usinage complet de lentilles optiquement actives sur les deux faces - Google Patents
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EP1436119B2 - Dispositif et procede pour l'usinage complet de lentilles optiquement actives sur les deux faces - Google Patents

Dispositif et procede pour l'usinage complet de lentilles optiquement actives sur les deux faces Download PDF

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Publication number
EP1436119B2
EP1436119B2 EP02774715A EP02774715A EP1436119B2 EP 1436119 B2 EP1436119 B2 EP 1436119B2 EP 02774715 A EP02774715 A EP 02774715A EP 02774715 A EP02774715 A EP 02774715A EP 1436119 B2 EP1436119 B2 EP 1436119B2
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EP
European Patent Office
Prior art keywords
lens
machining
optical axis
axis
holding device
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.)
Expired - Lifetime
Application number
EP02774715A
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German (de)
English (en)
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EP1436119B1 (fr
EP1436119A1 (fr
Inventor
Gunter Schneider
Helwig Buchenauer
Klaus Krämer
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Schneider GmbH and Co KG
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Schneider GmbH and Co KG
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Application filed by Schneider GmbH and Co KG filed Critical Schneider GmbH and Co KG
Publication of EP1436119A1 publication Critical patent/EP1436119A1/fr
Publication of EP1436119B1 publication Critical patent/EP1436119B1/fr
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    • 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
    • B24B13/0012—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for multifocal lenses
    • 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
    • B24B13/0031—Machines having several working posts; Feeding and manipulating devices
    • B24B13/0037—Machines having several working posts; Feeding and manipulating devices the lenses being worked by different tools, e.g. for rough-grinding, fine-grinding, polishing
    • 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

Definitions

  • the invention relates to a device for processing a two-sided optically active lens with a cutting and / or milling unit for processing at least a first side of the lens, wherein a first holding device for clamping the lens and a transformer unit for re-clamping the lens from the first side is provided on a second side for processing the second side of the lens and a method for producing a lens from a lens blank with two unprocessed sides, which is clamped in a rotatable about a workpiece spindle axis lens mount, after which a first optically active surface with an optical axis the first side of the lens blank is machined, wherein the optical axis of this surface lies substantially in the workpiece spindle axis and a method for processing a two-sided optically active lens with a cutting and / or milling unit for processing at least the first side of the lens, wherein the lens is held by a first holding device associated with a second side, and a transformer unit is provided for circumscribing the lens from
  • a lens blank made of plastic or glass is used, whose one or first side identifies already the final optically effective form.
  • this is the front side, ie the side facing away from the eye, which as a rule forms a spherical surface.
  • Such lens blanks are in gradations stockpiled in terms of the radii of curvature of the spherical surface.
  • For the abrasive toric processing of the rear surface or second side of the lens blank is blocked, that is, fixed with the front surface or first side of a block piece, which is clamped in the chuck of a lens grinding machine.
  • the front or first side is usually provided with an individual progressive addition surface by means of a cutting process.
  • a progressive addition surface is understood to mean a surface which deviates in some areas from a symmetrical-generally spherical-base surface, so that a progressive lens with near and far-vision regions and the corresponding transition regions is formed.
  • the base surface of the front surface or first side relative to the rear surface or second side is tilted, offset and / or phase-rotated.
  • the lens blank is previously attached to the rear surface on a block piece by means of a metallic paste.
  • the thus blocked lens is clamped for processing in the head of a workpiece spindle. Since the lens blank is mounted directly on the block piece, the tilt, offset, and / or phase of blocking must be taken into account by tilting the lens blank on the block piece. As a result, the blocking takes a long time. In addition, this requires a separate machine. Despite all care This additional step results in certain unavoidable inaccuracies.
  • the machine has a cutting unit and a polishing unit for processing one side of a lens. A complete processing of the lens on both sides is not provided.
  • the invention has for its object to form a device and a method in such a way and to design that a complete machining of the lens is ensured on both sides.
  • the positioning feature is a reference to the orientation of the first and / or the second side of the lens.
  • the reference between the positioning feature and the first side serves to align the lens in the second holder with respect to an optical axis of the first side.
  • the positioning feature is generated during machining of the first page in the same setup. The relation between this first holding surface and the supporting part to the first side is given. The relationship between the first page and the second page is present anyway.
  • the support member is then removed after clamping by the second holder.
  • a robot arm can also be used as a second holding device or for re-clamping.
  • the reference surface is a portion of the edge of the lens that remains after processing the first side of the lens. With or after editing the second page, this reference surface is removed.
  • the second holding device has at least two holding parts, each with at least one, at least one reference surface associated plant.
  • the uniform design of the system and the holding part ensures accurate positioning of the lens without additional reference between the system and the holding part.
  • the attachment of the lens holder is designed as a counter surface to the annular surface or reference surface of the lens blank and extends perpendicular to the workpiece spindle axis.
  • a support part which can be brought into abutment with the first side of the lens is provided, wherein the support part has a plastically and / or elastically deformable surface which can be applied to the first side of the lens and the surface is made of bandage - And / or filler formed and / or curable.
  • a support of the lens is given, which ensures the processing of the second page.
  • the curing of the surface or of the adhesive ensures a pretension-free support of the lens and thus a reproducible processing of the second side.
  • a device for signing and / or marking the lens is provided. This ensures the positioning of the lens in its subsequent recording within a component, such as a spectacle frame.
  • the signing takes place here either in a cutting unit by a tool and / or in a transformer unit by a laser.
  • the marking also serves to position the lens relative to the holding device, as long as the cover is not guaranteed by the re-tightening device when re-clamping.
  • a washing and / or rinsing device is provided for the lens.
  • the first side of the lens can thus be cleaned prior to removal and the finished lens before removal.
  • the washing and / or rinsing device is provided here in a polishing unit.
  • the orthogonally arranged reference surface is used for vertical alignment, wherein the reference surface arranged in parallel determines the radial position of the lens. It is also possible to ensure the alignment of the lens in the vertical and in the radial direction over a molding surface.
  • the respective required inclination or the respectively required offset of the lens blank when editing the second side is thus obtained by working out a Spannabsatzes whose axis is tilted relative to the optical axis of the first optical surface and / or offset , So that the turned lens blank can be tilted and / or offset clamped.
  • the second surface is now machined with its optical axis coincident with the workpiece spindle axis.
  • Elevations or depressions that define the progressive surface represent only a small deviation that can be easily included in the trajectory.
  • an optical axis of a progressive lens When in the description of the invention of an optical axis of a progressive lens is mentioned, so it is meant an axis which describes the mean curvature of the progressive power surface and is oriented on the optical axis of the underlying symmetrical base.
  • the clamping shoulder has a cylindrical lateral surface and an annular support surface extending perpendicular thereto.
  • the lateral surface is detected by pliers or holding parts of a lens holder or holding device in order to hold the lens blank in a rotationally fixed manner, the bearing surface resting on the abutments of the holding parts. Since the normal of the support surface is tilted relative to the blank axis and the upper end or the system of holding parts or their system is in a perpendicular to the workpiece spindle axis counter surface, the lens blank is held with a tilted relative to the workpiece spindle axis axis in the lens holder.
  • the major surface axes of the two sides must be correlated with each other. This, too, can be taken into account in the clamping paragraph by incorporating a phase marking, which interacts mechanically or optically with a corresponding counter mark on the lens mount, into the clamping shoulder. This makes it possible to use the turned lens blank phase-accurate in the lens mount, so that the controller, which knows the relative position of the workpiece spindle to the machining tool, thus also receives information about the phase alignment of the lens blank and thus a phase-matched Edit the second page can cause.
  • bar marks or signatures are incorporated, which make it possible to adjust the angular position of the two optical surfaces to each other for the processing of the second side and to control.
  • stroke marks also called signatures
  • the bar marks contain information about the position of the major and minor axes of the lens base. Markings on both sides are mainly needed for edge processing of spectacle lenses, which must be used in exact phase in spectacle frames.
  • the object is also achieved by a method according to claim 12.
  • the positioning feature can also be incorporated as a phase marker in the clamping paragraph, so that a phase-accurate insertion of the turned lens blank is possible.
  • polishing includes the finest diamond processing or machining without additives, only with water. As a result, minimal cutting marks are revised or removed.
  • a receiving adapter arranged on the second side of the lens for processing the first side is released from the second side of the lens, and the second side of the lens is processed by the cutting unit.
  • the lens is stretched by holding parts of the second holding device in the radial direction, wherein the positioning feature formed as a reference surface of the lens is brought into abutment with at least one holding part or a bearing of the holding part.
  • the system is here punctiform, linear or flat, so that the reference surface can be applied.
  • the support member has a plastic-elastic surface, which is cured after application, so that the lens is supported stress-free.
  • a marking and / or signing for later aligning the lens on the first side and / or on the second side is placed or incorporated, wherein after the processing of the first side, a protective layer or a protective film is placed on this .
  • the signing can be done by a laser immediately before re-clamping or with the cutting or milling process.
  • the marking also serves to position the lens relative to the holding device, provided that the reference is not guaranteed by the relay during re-clamping.
  • the lens is washed after processing the first side or after polishing and before applying the protective layer or the protective film and the first side and / or the second side is provided with a coating.
  • the coating of both sides at once is of greater importance.
  • the lens is advantageous for the lens to be held by the clamping jaws of the second holding device after the first side has been processed and removed from the first holding device.
  • the relative position of the lens to the first holding device from the system controller to the second holding device is transferable.
  • the use of signatures and / or markings can be omitted.
  • the lens is released from a receiving adapter and / or is released after processing of the second side by a support member. This ensures the processing or completion of the lens after the respective processing step.
  • Edge finishing after coating removes critical edge coating areas and creates special mounting options through shaping, grooving and drilling the lens to attach it to the eyeglass frame.
  • lens 1 has an optically active first page 1.1 and a second page to be machined 1.2.
  • the lens 1 is connected via a receiving adapter 6 and a receiving pin 6.1 with a workpiece spindle, not shown, a cutting, milling unit 7.
  • the cylindrically shaped lens is received directly in the tool spindle.
  • the lens 1 is according to FIG. 1 glued to the receiving adapter 6, so that the first side 1.1 of the lens 1 can be processed.
  • the lens 1 also has a reference surface 4.1, which is arranged orthogonal to the optical axis 1.3.
  • the reference surface 4.1 is part of the still protruding material of the former raw lens 1, according to FIG. 2 is processed in a further processing step to the second side 1.2 of the lens 1.
  • a side surface 4.2 is provided, which is arranged perpendicular to the reference surface 4.1 and also has a reference to the optical axis 1.3.
  • the lens 1 is arranged rotated, so that the already processed first side 1.1 of the lens 1 by two jaws 3.1, 3.2 of a second holding device 3 a transformer unit 2 can be accommodated.
  • the second page 1.2 is now according to FIG. 2 upwards and the receiving adapter 6 is removed.
  • the second page 1.2 is freely accessible in this position and can be edited.
  • the relative position of the lens 1 to the workpiece spindle, not shown, after FIG. 1 and the relative position of the lens 1 to the holding part 3.1 are hereby ensured.
  • the lens 1 rests with the reference surface 4.1 on a system 3.3 or Appendix 3.3 'of the jaw 3.2 and the clamping jaw 3.1 and is thus the optical axis 1.3 of the first page 1.1 aligned.
  • the optical axis 1.3 now runs approximately parallel to a tool spindle (not shown) or parallel to the side surface 4.2 of the first side 1.1.
  • the side surface 4.2 is used here for determining the position relative to the radial orientation of the lens 1. About the side surface 4.2, the lens 1 is held by the jaws 3.1, 3.2 in the radial direction.
  • a support member 5 which has a curable surface 5.1, such as an adhesive.
  • the support member 5 is connected via a receiving pin 5.2 with a tool spindle, not shown.
  • the surface 5.1 in this case is elastically-plastically deformable and can be applied or pressed against the lens 1 or the first side 1.1 for clamping the lens 1 by the clamping jaw 3.1 from below.
  • the surface 5.1 thus adapts to the geometry of the first side 1.1 of the lens 1 and provides sufficient support after curing.
  • a complete processing unit 10 has, on the one hand, a cutting and milling unit 7, an adjoining polishing unit 8, a transformer unit 2 and a coating unit 9.
  • the lens is passed on to the polishing unit 8.
  • the lens 1 is washed in the polishing unit 8, via the transformer unit 2 according to FIG. 1, 2 rotated and delivered to the cutting or milling unit 7 for processing the second side 1.2.
  • the second side 1.2 is polished and washed in the polishing unit 8.
  • the lens 1 is detached after the processing of the first page 1.1 of the receiving adapter 6 and after editing the second side 1.2 of the support member 5 and held by the jaws 3.1, 3.2.
  • a unit or station for coating the lens 1 with a protective layer or a protective film such as a plastic film is provided, so that the surface of the already processed first page 1.1 is not damaged during processing by the second side 1.2.
  • the lens After cutting or milling and polishing the first side 1.1 and / or the second side 1.2, the lens is signed in the transformer unit 2, for example with a laser and / or passed on to the coating unit 9, which then leaves completely processed.
  • FIG. 4 shows a cylindrical lens blank 1 with a first side 1.1 and a second side 1.2, both of which extend perpendicular to the blank axis 1.4.
  • the lens blank 1 is clamped in a holding parts or tongs 3.1, 3.2 having lens holder 3 of a workpiece spindle, not shown, so that the blank axis 1.4 coincides with the workpiece spindle axis.
  • the optically active surface of the first page 1.1 is worked out with a turning tool 11.
  • the optically active surface 1.1 is a spherical surface whose optical axis 1.3 coincides with the blank axis 1.4. But even here, a progressive power surface can be generated, wherein the optical axis 1.3 is the axis of the base surface of the progressive addition surface.
  • the machining is done with a fast rotating workpiece spindle, wherein the turning tool 11 is moved in accordance with the rotation of the workpiece spindle in the axial direction up and down and thereby slowly adjusted in the radial direction.
  • the workpiece spindle axis is thus a controlled, ie phase-controlled axis.
  • a clamping shoulder 4 is generated.
  • This consists of a peripheral step 4.3 with a lateral surface 4.2 and a perpendicular thereto ring surface 4.1. It is crucial that the clamping shoulder 4 is tilted relative to the blank axis 1.4 and thus with respect to the optical axis 1.3 of the optically active surface 1.1 of the first side, ie that the surface normal of the annular surface 4.1, which is the axis 12 of the clamping paragraph, is tilted relative to these axes ,
  • the stage 4.3 can also be additionally offset from the optical axis 1.3.
  • a laterally offset lathe chisel 11 is used in order to be able to process also the areas that represent themselves as an undercut.
  • the processing of the first page 1.1 of the lens blank 1 is thus completed. He is now removed from the clamping and turned and used with the first page 1.1 down again phase-exact by means of a phase marker in the form of a bar mark in the clamping. Such a marking can be dispensed with, if the clamping takes place in a controlled manner, that is to say when the phase angle of the lens 1 to the spindle is known and this information is not lost due to the controlled movement of the conversion tool 3, so that the turned lens 1 is again in phase alignment with the spindle Chuck of a phase-controlled spindle is used. It will - as the FIG.
  • FIG. 7 shows - the lens blank 1 detected at the stage 4.3, wherein the pliers 3.1, 3.2 of the lens holder 3 detect the lateral surface 4.2 and hold the lens blank 1 rotation.
  • the annular surface 4.1 rests on the upper end of the tongs 3.1, 3.2, so that the blank axis 1.4 is tilted relative to the workpiece spindle axis.
  • the now lying above the second side 1.2 of the lens blank 1 is tilted relative to the workpiece spindle axis.
  • the overhead second side 1.2 to a progressive power surface which is the second optical surface 1.2, processed, wherein the optical axis 1.4 coincides with the workpiece spindle axis and thus tilted relative to the optical axis 1.3 of the first page 1.1 and possibly offset.
  • a bar marking can be generated during the processing of the first page 1.1, which is taken into account in the processing of the second page 1.2.
  • the lens blank 1 is aligned with the bar mark. It also forms the starting point for editing the second page 1.2.
  • the resulting from the lens blank 1 lens of the lens holder 3 is removed and carried out a border processing, at least the material area, here double hatched, which forms the annular surface of the clamping is removed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Claims (21)

  1. Dispositif en vue du traitement d'une lentille (1) active du point de vue optique bilatéral avec une unité de découpe, de fraisage (7) et/ou de polissage (8) en vue du traitement d'au moins un premier côté de la lentille, un premier dispositif de maintien en vue de serrer la lentille (1) et une unité de rotation (2) en vue de retourner la lentille (1) du premier côté (1.1) sur le deuxième côté (1.2) étant prévus en vue du traitement du deuxième côté (1.2) de la lentille (1), caractérisé en ce que le dispositif sert au traitement d'une lentille (1) active au plan optique sur les deux côtés et présentant deux axes (1.3, 1.4) optiques basculés l'un par rapport à l'autre, un décrochement de serrage (4) présentant une surface d'enveloppe (4.2) cylindrique et une surface annulaire (4.1) et conçu comme caractéristique de positionnement (4) pouvant être fabriquée au moyen d'une unité de découpe et/ou de fraisage (7) avec un axe (12) défini par la surface d'enveloppe (4.2) et la surface annulaire (4.1) de telle sorte que l'axe (12) est décalé et/ou basculé par rapport à l'axe optique (1.3) du premier côté (1.1) et l'unité de changement d'outil (2) présente un second dispositif de retenue (3) pour la lentille (1) qui est conçu de telle sorte que la lentille (1) peut être positionnée par rapport à sa position d'axe au moyen de la caractéristique de positionnement (4) par rapport au second dispositif de retenue (3).
  2. Dispositif selon la revendication 1, caractérisé en ce que la caractéristique de positionnement (4) présente une référence par rapport au premier côté (1.1) et/ou au deuxième côté (1.2) de la lentille (1) et/ou par rapport à son orientation.
  3. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la caractéristique de positionnement (4.1) est réalisée en tant que surface de référence (4), la surface de référence (4) étant orientée par rapport à un axe optique (1.3, 1.4) du premier côté (1.1) et/ou du deuxième côté (1.2).
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le deuxième dispositif de maintien (3) présente au moins deux pièces de maintien (3.1, 3.2) avec à chaque fois au moins une installation (3.3) associée à au moins une surface de référence (4).
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une pièce d'appui (5) pouvant être amenée en appui avec le premier côté (1.1) de la lentille (1) est prévue.
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce d'appui (5) présente une surface (5.1) déformable plastiquement et/ou élastiquement pouvant s'appuyer sur le premier côté (1.1) de la lentille (1).
  7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface (5.1) est formée de liant et/ou d'agent de remplissage et/ou peut être durcie.
  8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif en vue de polir, signer et/ou de marquer la lentille (1) est prévu.
  9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de lavage et/ou de rinçage pour la lentille (1) est prévu.
  10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface de référence (4) est disposée de manière orthogonale et/ou parallèle à l'axe optique (1.3, 1.4) du premier côté (1.1) et/ou du deuxième côté (1.2) de la lentille (1).
  11. Procédé en vue de la fabrication d'une lentille à partir d'une ébauche de lentille (1) possédant deux côtés non traités qui est encastrée dans un logement de lentille (3) pouvant tourner autour d'un axe de broche porte-pièce, suite à quoi une première surface active du point de vue optique avec un axe optique (1.3) est dégrossie sur le premier côté (1.1) de l'ébauche de lentille (1), l'axe optique (1.2) de cette surface se trouvant essentiellement dans l'axe de la broche porte-pièce, caractérisé par les étapes opératoires suivantes:
    a) réalisation d'un gradin de serrage (4) avec une surface d'enveloppe cylindrique (4.2) et une surface d'appui annulaire (4.1) qui servent de caractéristique de positionnement (4.1) par rapport à l'axe optique (1.3) du premier côté (1.1), l'axe (12) défini par la surface d'enveloppe (4.2) et la surface annulaire (4.1) s'étendant de manière décalée et/ou basculée par rapport à l'axe optique (1.3) de la première surface active du point de vue optique (1.1), cette étape pouvant également être effectuée avant le dégrossissement de la première surface active du point de vue optique (1.1),
    b) prélèvement et rotation de l'ébauche de lentille (1) traitée jusqu'à présent,
    c) encastrement de l'ébauche de lentille tournée (1) dans le logement de lentille (3) déjà utilisé auparavant ou dans un autre logement de lentille (3) de sorte que l'axe (12) du gradin de serrage (4) coïncide avec l'axe de la broche porte-pièce,
    d) dégrossissement d'une deuxième surface optique (1.2) avec un axe optique (1.4) sur le deuxième côté de l'ébauche de lentille (1), l'axe optique (1.4) de cette surface se trouvant également essentiellement dans l'axe de la broche porte-pièce.
  12. Procédé en vue du traitement d'une lentille (1) active du point de vue optique bilatéral avec une unité de découpe et/ou de fraisage en vue du traitement d'au moins le premier côté (1.1) de la lentille (1), la lentille (1) étant maintenue par l'intermédiaire d'un premier dispositif de maintien associé à la deuxième côté (1.2) et une unité de rotation (2) en vue de retourner la lentille (1) du premier côté (1.1) sur le deuxième côté (1.2) étant prévue en vue du traitement du deuxième côté (1.2) de la lentille (1), caractérisé par les étapes opératoires suivantes:
    a) la lentille (1) est pourvue d'au moins une caractéristique de positionnement (4.1) présentant une référence vers le premier côté (1.1) et/ou vers le deuxième côté (1.2) au moyen du procédé de découpe,
    b) la lentille (1) est saisie par le deuxième dispositif de maintien (3) après la découpe le polissage du premier côté (1.1) et avant le prélèvement du premier dispositif de maintien et orientée au moyen de la caractéristique de positionnement (4) par rapport au deuxième dispositif de maintien (3),
    c) le deuxième côté (1.2) de la lentille (1) est traité par l'unité de découpe et/ou de polissage.
  13. Procédé selon la revendication 12, caractérisé en ce que la lentille (1) est serrée par des pièces de maintien (3.1) du deuxième dispositif de maintien (3) dans la direction radiale, la caractéristique de positionnement de la lentille (1) réalisée en tant que surface de référence (4) étant amenée en appui avec au moins une pièce de maintien (3.1) ou une installation (3.3) de la pièce de maintien (3.1).
  14. Procédé selon la revendication 12 ou 13, caractérisé en ce que la surface de référence (4) est disposée perpendiculairement ou parallèlement à un axe optique (1.3, 1.4) de la lentille (1).
  15. Procédé selon la revendication 12, 13 ou 14, caractérisé en ce qu'une pièce d'appui (5) est amenée en appui sur le premier côté (1.1).
  16. Procédé selon les revendications 12 à 14 ou 15,
    caractérisé en ce qu'une marque et/ou une signature est placée ou incorporée en vue de l'orientation ultérieure de la lentille (1) sur le premier côté (1.1) et/ou sur le deuxième côté (1.2).
  17. Procédé selon les revendications 12 à 15 ou 16,
    caractérisé en ce qu'une couche de protection ou une feuille de protection est disposée après le traitement du premier côté (1.1) sur celui-ci.
  18. Procédé selon les revendications 12 à 16 ou 17,
    caractérisé en ce que la lentille (1) est lavée après le traitement du premier côté (1.1) ou après le polissage et avant l'application de la couche de protection ou de la feuille de protection.
  19. Procédé selon les revendications 12 à 17 ou 18,
    caractérisé en ce que le premier côté (1.1) et/ou le deuxième côté (1.2) est pourvu d'un revêtement.
  20. Procédé selon les revendications 12 à 18 ou 19,
    caractérisé en ce que la lentille (1) est maintenue après le traitement du premier côté (1.1) et avant le prélèvement du premier dispositif de maintien par les mâchoires de serrage (3.1, 3.2) du deuxième dispositif de maintien.
  21. Procédé selon la revendication 19 ou 20, caractérisé en ce qu'un traitement de bordure en vue du positionnement et/ou de la fixation ultérieur(e) de la lentille (1) sur la monture de lunettes est effectué avant ou après le revêtement.
EP02774715A 2001-10-17 2002-10-15 Dispositif et procede pour l'usinage complet de lentilles optiquement actives sur les deux faces Expired - Lifetime EP1436119B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10150663 2001-10-17
DE10150663 2001-10-17
PCT/EP2002/011518 WO2003033205A1 (fr) 2001-10-17 2002-10-15 Dispositif et procede pour l'usinage complet de lentilles optiquement actives sur les deux faces

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EP1436119A1 EP1436119A1 (fr) 2004-07-14
EP1436119B1 EP1436119B1 (fr) 2005-03-16
EP1436119B2 true EP1436119B2 (fr) 2008-08-13

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Country Link
US (1) US20050020186A1 (fr)
EP (1) EP1436119B2 (fr)
DE (2) DE50202507D1 (fr)
WO (1) WO2003033205A1 (fr)

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US20050020186A1 (en) 2005-01-27
DE50202507D1 (de) 2005-04-21
EP1436119B1 (fr) 2005-03-16
EP1436119A1 (fr) 2004-07-14
DE10248103A1 (de) 2003-05-15
WO2003033205A1 (fr) 2003-04-24

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