EP0727279A1 - Appareil de glantage pour lentilles - Google Patents

Appareil de glantage pour lentilles Download PDF

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Publication number
EP0727279A1
EP0727279A1 EP96100872A EP96100872A EP0727279A1 EP 0727279 A1 EP0727279 A1 EP 0727279A1 EP 96100872 A EP96100872 A EP 96100872A EP 96100872 A EP96100872 A EP 96100872A EP 0727279 A1 EP0727279 A1 EP 0727279A1
Authority
EP
European Patent Office
Prior art keywords
lens blank
holding
attaching
holding part
centering
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.)
Granted
Application number
EP96100872A
Other languages
German (de)
English (en)
Other versions
EP0727279B1 (fr
Inventor
Lutz Dr.-Ing. Gottschald
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.)
Wernicke and Co GmbH
Original Assignee
Wernicke and Co GmbH
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
Application filed by Wernicke and Co GmbH filed Critical Wernicke and Co GmbH
Publication of EP0727279A1 publication Critical patent/EP0727279A1/fr
Application granted granted Critical
Publication of EP0727279B1 publication Critical patent/EP0727279B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24B13/005—Blocking means, chucks or the like; Alignment devices
    • B24B13/0055—Positioning of lenses; Marking of lenses

Definitions

  • the invention relates to a device for attaching a holding part to an optical surface of a lens blank before the lens blank is inserted into a lens processing machine.
  • Such holding parts are required if a second optical surface of a lens blank is to be machined in accordance with the required optical values, or if the lens periphery is to be edged in accordance with the shape of the selected spectacle frame.
  • the holding part For processing the second optical surface of a lens blank, the holding part must be attached to an already finished optical surface of the lens blank in such a way that a predeterminable position, the position of a close-up part, and the axis position of a cylinder or Prismatic cuts are taken into account.
  • the same also applies when attaching a holding part for the edge of the lens blank, with the decentration, ie the position of the pupils of the wearer with respect to the geometric center of the lens openings of the eyeglass frame that the eyeglass wearer has selected, also to be taken into account here.
  • German patent specification 42 33 400 by the same applicant describes a device for parallax-free centering of an eyeglass lens blank and for attaching markings and / or a holding part before inserting an eyeglass lens blank into an eyeglass lens edge grinding machine, in which a light divider arranged between the eye and the eyeglass lens blank describes an image of a template or an eyeglass frame opening and a scale superimposed on the image of the eyeglass lens blank.
  • This device has an electromotively driven up and down movable support for the eyeglass lens blank, a likewise up and down movable retainer holding the eyeglass lens blank on the support but allowing lateral movements in the support plane and one with the drive for the support and with the hold down in Proximity detector operatively connected to position the spectacle lens blank held between the hold-down device and the support at a predeterminable height. That on the lens blank
  • the holding part to be attached is attached to a holder of a swing-out swivel arm and pivoted into the area of the centered lens blank held between the support and the holding-down device, whereupon the support with the lens blank and the holding-down device is moved upwards until the lens upper side abuts and adheres to the holding part .
  • This holding part can be designed as a sucker or adhesive block.
  • the spectacle lens blank with the holding part attached to it is then removed from the device and inserted into a spectacle lens edge grinding machine.
  • this known device only prefabricated adhesive blocks or suction cups of small diameter can be attached to the lens blank.
  • the eyeglass lens blank with its convexly curved optical surface is placed on a surface above a flat one LCD screen, which shows images of the finished, rimmed spectacle lens, an axis cross and other data required for processing the spectacle lens, arranged alignment ring.
  • the one placed on this fixed alignment ring Eyeglass lens blank is viewed by means of a viewing unit and can be moved by hand into a desired or prescribed centering position.
  • a holding device in the form of a suction cup then lowers onto the surface of the spectacle lens blank to be machined and transports the spectacle lens blank in the transverse direction to a device for casting a plastic holding part onto the optical surface of the spectacle lens blank.
  • the spectacle lens blank is placed on a sealing ring by means of the holding device and provided with the holding part from below. This is done in such a way that a holding part element is first inserted into a cavity below the sealing ring, which is designed according to a recording in a machine for processing the optical surface and then the space between this holding part element and the optical surface of the lens blank with a thermoplastic material is filled out.
  • the invention has for its object to provide a device for attaching a holding part to an optical surface of a lens blank, with which all types of holding parts can be attached and which allows the attachment of always identical holding parts with a simple structure and simple operation, even if the Eyeglass lens blank should receive a prismatic or cylindrical cut or having.
  • a device of the type mentioned at the outset it has at least one viewing unit with a fixed stop, against which the lens blank is to be placed for parallax-free viewing when centering the lens blank, at least one movable holding device with a support for the lens blank, at least one block station arranged in a plane below or above the movable holding device and a movement drive for the holding device for placing the spectacle lens blank held on the support against the stop into the centering position and from the centering position into a position below or to the side for attaching the holding part in which has at least one block station.
  • the position for attaching the holding part is not between the viewing unit and the holding device and above the centering position, but is arranged below the centering position or to the side of it.
  • the attack can therefore be designed as a simple, stable ring, possibly with three pins arranged uniformly around the ring opening. As a result, a constant observation plane for the lens blank is defined, regardless of how the lens blank is aligned or centered.
  • the holding device only needs to be movable up and down between the centering position and the position for attaching the holding part and can be pivoted about a horizontal axis.
  • the holding device can advantageously be transversely displaceable between a first position for attaching the holding part and a second position for attaching the holding part, so that one eyeglass lens center and a second already centered eyeglass lens can be provided with a holding part in the second position.
  • a holding device so as to be movable in one of two positions for attaching the holding part and to provide a viewing unit in each of the two positions.
  • the movement drive for the holding device By means of the movement drive for the holding device, it can be raised and / or lowered up to the stop on the viewing unit and / or in the position for attaching the holding part.
  • this can have a pivot drive about a horizontal axis, so that the Holding device obtained swinging lens blank swing up to be brought into the centering position and swing down to be brought into the position for attaching the holding part.
  • the holding device can preferably have three support pins with controllable suction heads for holding the lens blank on the surface facing away from the optical surface. After aligning or centering the lens blank, a vacuum is applied to the suction heads, so that the lens blank is held securely, but the scope and the optical surface that has already been processed remain completely free.
  • the support pins are arranged to be axially displaceable in a spring-elastic manner, a full-surface contact of the optical surface of the lens blank at the stop in the centering position is always achieved and the lens blank can be aligned without problems.
  • the holding device can advantageously consist of a pot-shaped support with an illumination device and guides for the support pins, which penetrate a focusing screen and a condenser lens, and have a locking device for the support pins.
  • These Locking device holds the support pins in the position which they assume when centering the lens blank, so that the lens blank can be moved into the position for attaching the holding part in this position.
  • the viewing unit, the stop and the holding device can preferably be arranged one above the other on a common slide and the slide on a carrier housing can be moved alternately into one or the other of the two positions for attaching the holding part.
  • the holding device can have axially parallel guide rails which cooperate with corresponding guide rails which can be pivoted about a horizontal axis on parallel holding arms of the slide, as a result of which the holding device moves between the centering position optical surface of the spectacle lens blank facing upwards and the position for attaching the holding part with the optical surface of the spectacle lens blank directed obliquely downward can be pivoted and raised and lowered.
  • the position (s) for attaching the holding part to the optical surface of the centered Spectacle lens blank can be assigned a device for casting on a wax, plastic or metal alloy holding part.
  • the device has a carrier housing 1, on which two spaced block stations 2, each with a central sealing ring 3, are arranged on a beveled front surface.
  • a carrier housing 1 In the carrier housing 1 below the block stations 2 there is an arrangement, not shown in detail, for keeping wax, thermoplastic plastic or a metal alloy liquid, which, when an eyeglass lens blank 16 is placed on the sealing ring 3, is located in a mold cavity below the eyeglass lens blank on the sealing ring 3 can be introduced and cools there.
  • two parallel guide rails 4 are arranged, on which a carriage 5 can be moved transversely. This can be achieved by means of a geared motor 27 fastened to the slide 5, which is in engagement with a gearwheel 28, which in turn meshes with a toothed rack 29 on one of the guide rails 4.
  • a viewing unit 6 is arranged on the carriage 5, the optical part of which can correspond to the viewing unit described in German Patent 42 32 400. Furthermore, 5 parallel holding arms 7 are arranged on the carriage, which are approximately horizontally parallel to the viewing unit 6 run. At the end of the holding arms 7, a cup-shaped carrier 8 is arranged, from one side of which three resilient, axially displaceable support pins 9 protrude, at the ends of which suction heads 10 are arranged. As can be seen in particular from FIG. 7, axially parallel guide rails 11 are fastened laterally on the pot-shaped support 8 and cooperate with corresponding guide rails 12 on the holding arms 7. The guide rails 12 can be pivoted about a horizontal pivot axis 13 parallel to the guide rails 4.
  • the guide rails 12 are mounted in the holding arms 7 by means of ball bearings 24 and are connected to a swivel drive 14 and a height adjustment drive 15.
  • the swivel drive consists of a geared motor 20 mounted on a swivel arm 7 with a toothed belt wheel 21.
  • Another toothed belt wheel 23 is arranged in the swivel axis 13 of the guide rails 12, and a toothed belt 22 is placed over the toothed belt wheels 21, 23.
  • the height adjustment drive consists of a geared motor 15 attached to a guide rail 12, the gearwheel 25 of which meshes with a rack 26 on a guide rail 11.
  • a lens blank 16 can be placed on the suction heads 10 of the support pins 9 in such a way that the one finished optical surface 17 of the lens blank 16 faces the viewing unit 6 is directed.
  • the cup-shaped carrier 8 with the support pins 9 and the spectacle lens blanks 16 placed on the suction heads 10 is then moved into the position shown in FIG. 3, in which the optical surface 17 is attached to an annular stop 18 which is fastened to the viewing unit 6 by means of holders 19, booted.
  • the spectacle lens blank 16 is in a plane defined by the stop ring 18, in which parallax-free viewing on a screen 21 of the viewing unit is possible.
  • An image 37 of the spectacle lens blank appears on this screen 41 and a possibly already existing near part 38 can also be seen.
  • On the screen 41 which is preferably designed as a transparent LCD screen, an image of the rimed spectacle lens 40 can also be shown, as well as the position of the optionally decentred optical center 39, the axis position of a prismatic and / or cylindrical grinding.
  • a pre-decentering can also be identified in order to be able to manufacture a certain spectacle lens with the smallest possible diameter of the spectacle lens blank according to the shape of a selected spectacle frame with the personal optical values of the spectacle wearer.
  • the various optical values can be entered using an input keyboard 36 for a control unit (not shown in detail) or in another known manner, e.g. B. by entering a barcode reader or a floppy disk.
  • the pot-shaped carrier 8 has a condenser lens 30 on its upper surface and a matt screen 31 below it.
  • Guide sleeves 34 for the resiliently axially displaceable support pins 9 are arranged through the condenser lens 30 and through the focusing screen 31.
  • Each support pin 9 is provided with a vacuum connection 33 in order to be able to apply a vacuum to the suction heads 10.
  • a clamping ring 32 is actuated, vacuum is applied to the underside of the spectacle lens blank 16 via the vacuum connections 38, so that the latter is held in the position determined in the centering position.
  • An incandescent lamp 35 arranged in the cup-shaped support 8 illuminates the lens blank 16 through the focusing screen 31 and the condenser lens 30 so that the lens blank can be clearly seen on the screen 41 of the viewing unit 6, including any near part that may be present.
  • the pot-shaped support 8 is moved into the position shown in FIG. 4 by actuating the height adjustment drive 15
  • the position shown is lowered, then pivoted into the position shown in FIG. 5 by actuating the swivel drive 14 and lowered into the position shown in FIG. 6 by actuating the height adjustment drive 15 again, so that the spectacle lens blank 16 is sealed with its optical surface 17 on the sealing ring 3 is held.
  • wax or thermoplastic or a metal alloy is introduced into the cavity below the spectacle lens blank 16 and between the sealing ring 3 and cools there.
  • the carriage 5 with the viewing unit 6 and the holding device consisting of the cup-shaped support 8, the support pins 9 and the suction heads 10 can be moved transversely into the area of the second block station 2, where the same process of centering and attaching a holding part takes place can.
  • 9 and 10 describe two further embodiments of the device, which have two block stations and two holding devices 8, 9, 10, but only one viewing unit 6.
  • the holding devices 8, 9, 10 are arranged on a common carriage 42 and leave move across guide rails 43.
  • a holding device 8, 9, 10 is located below the viewing unit 6, ie in the centering position, while the other holding device 8, 9, 10 is located above one block station 2, ie in the position for attaching a holding part. Therefore, while an eyeglass lens blank 16 is aligned and centered in the centering position, another eyeglass lens blank 16 is held on the sealing ring 3 of the block station 2 and provided with a cast-on holding part.
  • the spectacle lens blank 16 placed on the sealing ring 3 can be held until the cast-on holding part has cooled and solidified sufficiently to be able to be shaped. During this time, a second lens blank 16 can be aligned and centered in the centering position.
  • both holding devices 8, 9, 10 are shifted to the right by means of a movement drive engaging on the carriage 42, so that the aligned and centered lens blank 16 is seated on the sealing ring 3 of the second block station 2 and inserted align and center another lens blank 16.
  • the distance between the holding devices 8, 9, 10 is half the distance between the two block stations 2 and the viewing unit 6 is arranged approximately in the middle above the two block stations 2.
  • two block stations 2 and two holding devices 8, 9, 10 are also arranged above them.
  • these holding devices 8, 9, 10 can only be pivoted and moved up and down, but not transversely.
  • the viewing unit 6 is arranged on a carriage 44, which can be moved back and forth along guide rails 45 on the carrier housing 1 transversely between the two block stations 2.
  • a lens blank 16 can be aligned and centered in the area of one block station, while another lens blank 16 is lowered onto the sealing ring 3 of the second block station 2 and is provided with a holding part.
  • the block stations can not only be set up to cast a holding part, but can also have holders for prefabricated adhesive blocks or suction cups, onto which the aligned and centered lens blanks are lowered and in this way with them get connected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Eyeglasses (AREA)
EP96100872A 1995-02-18 1996-01-23 Appareil de glantage pour lentilles Expired - Lifetime EP0727279B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19505524A DE19505524C2 (de) 1995-02-18 1995-02-18 Vorrichtung zum Zentrieren eines Brillenglasrohlings und Anbringen eines Halteteils auf einer optischen Oberfläche des Brillenglasrohlings
DE19505524 1995-02-18

Publications (2)

Publication Number Publication Date
EP0727279A1 true EP0727279A1 (fr) 1996-08-21
EP0727279B1 EP0727279B1 (fr) 1998-06-17

Family

ID=7754334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100872A Expired - Lifetime EP0727279B1 (fr) 1995-02-18 1996-01-23 Appareil de glantage pour lentilles

Country Status (3)

Country Link
US (1) US5720647A (fr)
EP (1) EP0727279B1 (fr)
DE (2) DE19505524C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1842624A1 (fr) * 2006-04-03 2007-10-10 Nidek Co., Ltd. Appareil de pose de ventouse avec dispositif de montage et serrage d'un verre de lunettes

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2136541B1 (es) * 1997-05-06 2000-08-01 Indo Int Sa Aparato para el centrado y bloqueo de un disco de lente oftalmica.
US5919080A (en) * 1997-05-30 1999-07-06 Micro Optics Design Corporation Ophthalmic lens blocker
US6012965A (en) * 1997-10-07 2000-01-11 Micro Optics Design Corp. Manufacturing ophthalmic lenses using lens structure cognition and spatial positioning system
US6869333B2 (en) * 2002-09-11 2005-03-22 National Optronics, Inc. Lens blank alignment and blocking device and method
US6846078B2 (en) * 2002-09-11 2005-01-25 National Optronics, Inc. System and method for aligning reference marks on a lens blank using adjustable alignment marks
US7090559B2 (en) * 2003-11-19 2006-08-15 Ait Industries Co. Ophthalmic lens manufacturing system
FR2869822B1 (fr) * 2004-05-06 2007-08-10 Owoay Sarl Procede de fixation d'un verre de lunette pour son usinage
DE102014015200A1 (de) 2014-10-16 2016-05-12 Satisloh Ag Vorrichtung zum Blocken von Werkstücken, insbesondere Brillengläsern, für deren Bearbeitung und/oder Beschichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1948644A1 (de) * 1969-09-26 1971-04-01 Zeiss Carl Fa Vorrichtung zum Ausrichten einer rohkantigen Linse zur Formschablone ihrer Fassung
EP0409760A1 (fr) * 1989-07-17 1991-01-23 Indo Internacional S.A. Appareil pour centrer et poser des verres ophtalmiques
DE4233400A1 (de) * 1992-10-05 1994-05-05 Wernicke & Co Gmbh Vorrichtung zum parallaxenfreien Zentrieren eines Brillenglasrohlings
DE4431880A1 (de) 1993-09-07 1995-03-16 Gerber Optical Inc Linsenhalteapparatur

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088312A (en) * 1977-09-27 1978-05-09 Nasa Variable contour securing system
US4229911A (en) * 1978-04-03 1980-10-28 Bicskei Bela J Precision blocking of semi-finished lens blanks
US4400251A (en) * 1981-06-05 1983-08-23 Aluminum Company Of America Method and apparatus for simultaneously electrocoating the interior and exterior of a metal container
EP0082322B1 (fr) * 1981-12-23 1987-06-24 Wernicke & Co. GmbH Appareil pour le centrage des verres de lunettes et pour la fixation d'un organe de maintien sur les verres
US4684113A (en) * 1984-09-28 1987-08-04 The Boeing Company Universal holding fixture
JPH0327757Y2 (fr) * 1984-10-17 1991-06-14
JPS6299065A (ja) * 1985-10-22 1987-05-08 Matsushita Electric Ind Co Ltd 球面研削装置
FR2629746B1 (fr) * 1988-04-06 1991-01-25 Bertin & Cie Procede et dispositif de polissage d'un composant optique
FR2652528A1 (fr) * 1989-09-29 1991-04-05 Essilor Int Dispositif de glantage.
DE59003239D1 (de) * 1989-11-16 1993-12-02 Plm Berlin Dosenwerk Gmbh Verfahren und Vorrichtungen zum anodischen oder kathodischen Elektrolackieren von Hohlkörpern, insbesondere von Dosen.
US5005633A (en) * 1989-12-08 1991-04-09 Coburn Optical Industries, A Division Of Pilkington Visioncare, Inc. Lens blocking apparatus
FR2668410B1 (fr) * 1990-10-25 1993-01-22 Essilor Int Dispositif de glantage a bras de glantage verrouillable.
FR2676383B1 (fr) * 1991-05-16 1993-09-10 Buchmann Optical Eng Dispositif de pose d'un adaptateur sur une ebauche de verre optique.
DE4414784C2 (de) * 1994-04-28 1996-07-18 Wernicke & Co Gmbh Anlage zum Schleifen des Umfangsrandes und/ oder einer optischen Oberfläche von Brillengläsern
US5498200A (en) * 1994-08-12 1996-03-12 Wernicke & Co. Gmbh Device for parallex-free centering of a blank for a glass lens for spectacles and for providing markings and/or attaching a holder before inserting the blank into a grinding machine for blanks for glass lenses

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1948644A1 (de) * 1969-09-26 1971-04-01 Zeiss Carl Fa Vorrichtung zum Ausrichten einer rohkantigen Linse zur Formschablone ihrer Fassung
EP0409760A1 (fr) * 1989-07-17 1991-01-23 Indo Internacional S.A. Appareil pour centrer et poser des verres ophtalmiques
DE4233400A1 (de) * 1992-10-05 1994-05-05 Wernicke & Co Gmbh Vorrichtung zum parallaxenfreien Zentrieren eines Brillenglasrohlings
DE4233400C2 (de) 1992-10-05 1994-08-25 Wernicke & Co Gmbh Vorrichtung zum parallaxenfreien Zentrieren eines Brillenglasrohlings
DE4431880A1 (de) 1993-09-07 1995-03-16 Gerber Optical Inc Linsenhalteapparatur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1842624A1 (fr) * 2006-04-03 2007-10-10 Nidek Co., Ltd. Appareil de pose de ventouse avec dispositif de montage et serrage d'un verre de lunettes
US7686674B2 (en) 2006-04-03 2010-03-30 Nidek Co., Ltd. Cup attaching apparatus

Also Published As

Publication number Publication date
DE19505524A1 (de) 1996-08-22
DE19505524C2 (de) 1996-12-19
DE59600280D1 (de) 1998-07-23
US5720647A (en) 1998-02-24
EP0727279B1 (fr) 1998-06-17

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