EP1436119B1 - 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
EP1436119B1
EP1436119B1 EP02774715A EP02774715A EP1436119B1 EP 1436119 B1 EP1436119 B1 EP 1436119B1 EP 02774715 A EP02774715 A EP 02774715A EP 02774715 A EP02774715 A EP 02774715A EP 1436119 B1 EP1436119 B1 EP 1436119B1
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EP
European Patent Office
Prior art keywords
lens
optical axis
machining
holding device
page
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 - Fee Related
Application number
EP02774715A
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German (de)
English (en)
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EP1436119A1 (fr
EP1436119B2 (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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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
    • 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 Editing a two-sided optically active lens with a Cutting, milling, and / or a polishing unit for Edit at least a first side of the lens and a Method for editing a two-sided optically active Lens with a cutting, milling and / or a Polishing unit for processing at least a first page the lens, the lens being over a second side associated first holding device is held.
  • a lens blank used in plastic or glass, one or the first Page already identifies the final optically effective form.
  • this is the front, ie the eye opposite side, which is usually a spherical surface forms.
  • Such lens blanks are in gradations with respect to the radii of curvature of the spherical surface stored.
  • For grinding toric processing of rear surface or second side becomes the lens blank blocked, that is, with the front surface or first Side attached to a block piece that fits into the chuck a lens grinding machine is clamped.
  • the front or first page is usually by means of a machining process with an individual Provided progressive surface.
  • a progressive surface one understands an area, which in partial ranges of a symmetrical - usually spherical - footprint deviates so that a progressive lens with near and Far-sighted areas and the corresponding Transition areas arises.
  • the base area the front surface or first side opposite to the tilted rear surface or second side, offset and / or phase-twisted.
  • the lens blank is used to produce the progressive surface previously with the rear surface on a block piece by means of attached to a metallic paste.
  • the so blocked Lens is for editing in the head of a Clamped workpiece spindle. Because the lens blank is attached directly to the block piece, the Tilting, the offset and / or the phase angle during Blocking is taken into account by the lens blank inclined or offset is attached to the block piece. Thereby The blocking takes a long time. Also, this is for this a separate machine needed. Despite all care result from this additional step certain, unavoidable inaccuracies.
  • the invention is based on the object, a device and to form and design a method such that a complete machining of the lens on both sides is guaranteed.
  • the object is achieved erfindungaloom by an apparatus according to claim 1.
  • the transformer unit a second holding device for the lens, and the Lens via at least one positioning feature relative to the second holding device is storable, wherein the Positioning feature a reference to the first and / or to the second side of the lens to their orientation.
  • the reference between the positioning feature and the first Side is used to align the lens in the second Holding device with respect to an optical axis of first page.
  • the positioning feature is activated during editing the first page in the same Clamping generated.
  • a positioning feature can also first side or the first holding surface or the supporting part, used to edit the first page used become.
  • the relation between this first holding surface or the support member to the first page is given.
  • the reference between the first page and the second page is anyway available.
  • the support member is then after tightening by removed the second holding device.
  • second Holding device or for re-clamping can also be Robot arm can be used.
  • the position feature as Reference surface is formed, wherein the reference surface with respect to an optical axis of the first side and / or the second side is aligned.
  • the Reference surface is in this case a part of the edge of the lens, which are after editing the first side of the lens remains. With or after editing the second page this reference surface is removed.
  • Beside the one Reference surface is also a second reference surface of Advantage, which also coincides with the machining process of first side of the lens is made.
  • the second Reference surface can be used as side or lateral surface of the lens be formed and is perpendicular to the reference surface, ie substantially parallel to the optical axis of the first Side and / or the second page arranged.
  • Side surface formed reference surface provides in optimal case the later outer surface of the lens for a Version, d. h the lens does not need to be retrofitted Go through edge processing.
  • a positioning feature is also the first holding surface or the support part, the Editing the first page is used or the axis position of the Robot, which fixes the lens position, usable.
  • the second holding device at least two holding parts, each with at least one, at least one reference surface associated plant having.
  • the uniform training of the plant and the holding part ensures accurate positioning of the Lens without additional reference between the plant and the Holding part.
  • the attachment of the lens holder is as Counter surface to the annular surface or reference surface of Lens blanks formed and extends perpendicular to Workpiece spindle axis.
  • one engageable with the first side of the lens Support member is provided, wherein the support member to the first side of the lens applied plastically and / or having elastically deformable surface and the Surface formed of binder and / or filler and / or is curable.
  • the support member to the first side of the lens applied plastically and / or having elastically deformable surface and the Surface formed of binder and / or filler and / or is curable.
  • a device for Signing and / or marking the lens is provided. This is the positioning of the lens in its later Recording within a component, such as a Glasses frame, guaranteed.
  • the signing takes place 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, if the cover by the Umspannvorraum not guaranteed when re-tightening becomes.
  • a washing and / or Flushing device is provided for the lens.
  • the first Side of the lens can thus be before re-clamping and the finished machined lens to be cleaned before removal.
  • the Washing and / or rinsing device is here in one Polishing unit provided.
  • the reference surface orthogonal or parallel to the optical axis of the first Side and / or the second side of the lens is arranged.
  • the orthogonally arranged reference surface serves the vertical orientation, with the parallel arranged Reference surface determines the radial position of the lens. It is Also possible, the orientation of the lens in vertical and to ensure in the radial direction over a molding surface.
  • the problem is solved by claim 11.
  • the necessary inclination or the respectively necessary offset of the lens blank when editing the second page is obtained accordingly a working out a Spannabsatzes whose axis opposite the optical axis of the first optical surface tilted and / or offset, so the turned Lens blank tilted and / or offset clamped can.
  • the second surface is now edited, with its optical axis coincides with the workpiece spindle axis.
  • the leadership of the tool is essential simplified; this just needs to follow a lane, which follows in the main the symmetrical base. Elevations or depressions that the progressive surface define only a small deviation that can be easily included in the trajectory.
  • an axis meant the mean curvature of the Progressive surface describes and is on the optical axis oriented to the underlying symmetric base.
  • the clamping shoulder has a cylindrical Lateral surface and a perpendicular thereto annular bearing surface on.
  • the lateral surface is of Pliers or holding parts of a lens holder or Detected holding device to the lens blank rotation with the bearing surface on the plants of the Holding parts rests. Because the normal of the bearing surface is tilted relative to the blank axis and the upper Termination or the installation of the holding parts or their attachment in a direction perpendicular to the workpiece spindle axis Counter surface is the lens blank is with a with respect to the workpiece spindle axis tilted axis in the Lens holder held.
  • the main surface axes of the two sides must be together be correlated.
  • the stroke marks contain particular information about the location of the Major and minor axes of the lens base. marks on both sides are predominantly for one Edge processing of spectacle lenses needed, the must be used accurately 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-exact insertion of the turned Lens blanks is possible.
  • the polishing includes besides the usual mechanical and chemical processing a finest diamond machining or the processing without additives, only with water. hereby Minimal cutting marks are revised or removed.
  • the lens goes through Holding parts of the second holding device in the radial Direction is stretched, with the reference surface trained positioning feature of the lens with at least a holding part or a system of the holding part to the plant is brought.
  • the plant is punctiform, formed linear or flat, so that the Reference surface can be applied.
  • the reference surface perpendicular or parallel to an optical axis of the lens is arranged and on the first side a support member for Plant is brought.
  • the support member has a plastic-elastic Surface hardened after application so that the lens is tension-free.
  • a mark and / or Signing for later aligning the lens on the first Page and / or placed on the second page or is incorporated, wherein after editing the first Side a protective layer or a protective film on this is arranged.
  • the signing can be done by a Laser done immediately before the re-tightening or with the cutting or milling process.
  • the marking in addition also the Positioning the lens relative to the holding device, provided the reference by the transformer in the Repositioning is not guaranteed.
  • the lens after editing the first page or after polishing and before Wash the protective layer or the protective film washed is and the first page and / or the second page with a coating is provided. Because of practical reasons the coating on both sides is larger at once Importance.
  • the lens after the Edit the first page and remove it from the first one Holding device through the jaws of the second Holding device is held.
  • the relative position the lens to the first holding device of the System control on the second holding device transferable.
  • the use of signatures and / or Markings can be omitted.
  • the lens after the Edit the first page of a capture adapter is resolved and / or after editing the second page is released from a support member. This ensures the Processing or completion of the lens after the respective processing step.
  • edge processing after coating become critical coating sites in the edge area removed and special mounting options through Form rounds, grooves and drilling the lens for attachment produced on the spectacle frame.
  • the lens 1 shown in Figure 1 has a optically active first page 1.1 and one too editing second page 1.2. According to FIG the lens 1 via a receiving adapter 6 and a Spigot 6.1 with a not shown Workpiece spindle of a cutting, milling unit 7 connected. In a not shown Embodiment is the cylindrically shaped Lens added directly to the tool spindle.
  • the lens 1 is according to Figure 1 on the Adhesive adapter 6 glued, so the first Page 1.1 of the lens 1 can be edited.
  • the generated lens shape of the first page 1.1 with the resulting optical axis 1.3 points the lens 1 also has a reference surface 4.1, the is arranged orthogonal to the optical axis 1.3.
  • the reference area 4.1 is part of the still protruding material of the former raw lens 1, that according to Figure 2 in another Processing step to the second side 1.2 of the lens 1 is processed.
  • a side surface 4.2 provided perpendicular to Reference surface 4.1 is arranged and also a Reference to the optical axis 1.3 has.
  • the lens 1 is arranged rotated, so that already edited first page 1.1 of Lens 1 by two jaws 3.1, 3.2 a second Holding device 3 a transformer unit 2 was added can be.
  • the second page 1.2 is now according to Figure 2 upwards and the receiving adapter 6 is away.
  • the second page 1.2 is in this position freely accessible and can be edited.
  • the relative position of the lens 1 to not shown Workpiece spindle of Figure 1 and the relative Position of the lens 1 to the holding part 3.1 are here maintained.
  • the lens 1 rests with the reference surface 4.1 Annex 3.3 or Annex 3.3 'of the jaw 3.2 or the jaw 3.1 and is thus the optical axis 1.3 of the first page 1.1 after aligned.
  • the optical axis 1.3 now runs approximately parallel to a not shown Tool spindle or parallel to the side surface 4.2 the first page 1.1.
  • the side surface 4.2 is used here for determining the position relative to the radial Alignment of the lens 1. Over the side surface 4.2 is the lens 1 through the jaws 3.1, 3.2 in held radial direction.
  • a support member 5 which is a curable surface 5.1, such as a Adhesive, has.
  • the support member 5 is over a Spigot 5.2 with a not shown Tool spindle connected.
  • the surface is 5.1 this elastic-plastically deformable and can for Bracing the lens 1 through the jaw 3.1 of down against the lens 1 and the first page 1.1 be created or pressed.
  • the surface 5.1 thus adapts to the geometry of the first page 1.1 the lens 1 and provides after curing enough support.
  • FIG. 3 has a Complete processing unit 10 for a Cutting, milling unit 7, an adjoining Polishing unit 8, a transformer unit 2 and a Coating unit 9 on.
  • milling unit 7 becomes passed the lens to the polishing unit 8.
  • To the polishing is the lens 1 in the polishing unit. 8 washed, via the transformer unit 2 according to Figure 1, 2nd rotated and to the cutting or milling unit 7 for Processing of the second page 1.2 submitted. After that becomes the second side 1.2 in the polishing unit 8 polished and washed.
  • the lens 1 In the transformer unit 2 is the lens 1 after editing the first page 1.1 from the receiving adapter 6 or after editing the second side 1.2 released from the support member 5 and held by the jaws 3.1, 3.2.
  • a Protective layer or a protective film such as a Plastic film provided so that the surface the already edited first page 1.1 during the Editing through the second page 1.2 not ödamaged.
  • the lens in the transformer unit 2 After cutting or milling and polishing the first page 1.1 and / or the second page 1.2 becomes the lens in the transformer unit 2, for example, with Signed a laser and / or to the Coating unit 9 passed, which they then completely processed leaves.
  • FIG. 4 shows a cylindrical lens blank 1 with a first page 1.1 and a second page 1.2, both perpendicular to the blank axis 1.4 extend.
  • the lens blank 1 is in one Holding parts or pliers 3.1, 3.2 having Lens holder 3 a not shown Clamped workpiece spindle, so that the Blank axis 1.4 with the workpiece spindle axis matches.
  • the optically active surface is first of all the first page 1.1 with a turning tool 11 worked out. In the simplest case, it is at the optically active surface 1.1 to a spherical Surface whose optical axis 1.3 with the Blank axis 1.4 matches. But here too can already be produced a progressive surface, wherein the optical axis 1.3 the axis of the base of the Is progressive.
  • the processing is done with a rapidly rotating workpiece spindle, wherein the turning tool 11 according to the rotation of the Workpiece spindle in the axial direction up and down is moved while slowly in the radial direction is adjusted.
  • the acceleration of the Tool is not too large in the axial direction, can use the rotational movement or rotation in areas large changes in the local curvatures, if necessary be slowed down.
  • the workpiece spindle axis is thus a controlled, i. phase-controlled axis.
  • FIG. 6 is in the same restraint Spannabsatz 4 generated.
  • This consists of a circumferential stage 4.3 with a lateral surface 4.2 and a perpendicularly extending annular surface 4.1.
  • the clamping paragraph 4 opposite the blank axis 1.4 and thus against the optical axis 1.3 of the optically active surface 1.1 the first side is tilted, i. that the Surface normal of the ring surface 4.1, that is the Axis 12 of the clamping shoulder, opposite these axes is tilted.
  • the level 4.3 can also additionally offset to the optical axis 1.3 be formed.
  • Turning tool 11 used to cover the areas as well to be able to edit, which is as an undercut represent.
  • the processing of the first page 1.1 of the Lens blanks 1 is thus completed. He will now taken from the clamping and turned and with the first page 1.1 down again in phase with Help of a phase marker in the form of a Line marking used in the clamping. On such a mark can be dispensed with if the re-clamping is controlled, that is when the Phase angle of the lens 1 to the spindle is known and by the controlled movement of the transfer tool 3 this information is not lost, so that the turned lens 1 again in phase in the Chuck of a phase-controlled spindle used becomes.
  • Page 1.2 to a progressive surface, that is the second optical surface 1.2, edited, with their optical axis 1.4 with the workpiece spindle axis coincides and thus with respect to the optical Axis 1.3 of the first page 1.1 tilted and possibly is offset.
  • the angular alignment of the two optical Areas 1.1, 1.2 has the desired dimension, can at the Editing the first page 1.1 one Line marking are generated at the Processing of the second page 1.2 Consideration place. Before the cutting process begins, the Lens blank 1 based on the line marking aligned. It also forms the starting point for editing the second page 1.2.

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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 qu'un deuxième dispositif de maintien (3) pour la lentille (1) est prévu et conçu de sorte que la lentille (1) puisse être logée par rapport à sa position axiale au-dessus d'au moins une caractéristique de positionnement (4) par rapport au deuxième dispositif de maintien (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 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), 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, de fraisage et/ou de polissage en vue du traitement d'au moins un premier côté (1.1) de la lentille (1), la lentille (1) étant maintenue par l'intermédiaire d'un premier dispositif de maintien associé à un 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 et/ou après le polissage d'un 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 - Fee Related EP1436119B2 (fr)

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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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CN111390701A (zh) * 2020-04-09 2020-07-10 梅州市尚善光电有限公司 一种光学透镜冷加工装置以及加工工艺
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DE102005057725A1 (de) * 2005-12-01 2007-06-06 Schneider Gmbh + Co. Kg Vorrichtung zum Fräsen, Drehen und Polieren von Linsen
DE102007007161A1 (de) 2007-02-09 2008-08-14 Satisloh Gmbh Verfahren, Vorrichtung und Material zum Blocken von Werkstücken, insbesondere Brillengläsern, für deren Bearbeitung und/oder Beschichtung

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EP1436119A1 (fr) 2004-07-14
WO2003033205A1 (fr) 2003-04-24
EP1436119B2 (fr) 2008-08-13
DE50202507D1 (de) 2005-04-21
DE10248103A1 (de) 2003-05-15
US20050020186A1 (en) 2005-01-27

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