EP0759834B1 - Verfahren zum cnc-gesteuerten formschleifen des umfangsrandes und der dachfacette eines brillenglases - Google Patents
Verfahren zum cnc-gesteuerten formschleifen des umfangsrandes und der dachfacette eines brillenglases Download PDFInfo
- Publication number
- EP0759834B1 EP0759834B1 EP95920828A EP95920828A EP0759834B1 EP 0759834 B1 EP0759834 B1 EP 0759834B1 EP 95920828 A EP95920828 A EP 95920828A EP 95920828 A EP95920828 A EP 95920828A EP 0759834 B1 EP0759834 B1 EP 0759834B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roof
- arris edge
- length
- shaped
- measured
- 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
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Classifications
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
- B24B47/225—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation for bevelling optical work, e.g. lenses
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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
- 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
- B24B9/148—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 electrically, e.g. numerically, controlled
Definitions
- the invention relates to a method for CNC-controlled Shape grinding of the peripheral edge and the roof facet of one Eyeglass lenses according to the shape of a selected one Glasses frame and the personal optometric data of the Glasses wearer (see e.g. JP-A-05 212 661).
- the roof facet on the Circumferential edge of a shaped lens from the Leading edge have the same distance everywhere, even if the lens has a strong circular shape has a different shape.
- the front of the lens is purely spherical, so lies at a constant distance from the front edge of the Glass facets also manufactured on a roof Spherical surface with the same center as the spherical surface the front surface of the lens.
- Becomes an eyeglass lens by copying after the glasses frame produced corresponding shaped disc can constant distance of the roof facet from the front surface of the Reach glasses either by pressing a button the front surface of the eyeglass frame and the Relative displacement of a grinding wheel with respect to that Spectacle lens controls in the axial direction or by the Axial displacement using a so-called Panhard rod is effected, the length of which is the radius of the spherical Front surface of the lens minus the distance between the Corresponds to the roof facet from the front edge of the lens.
- a device for three-dimensional scanning of Eyeglass frames are in the German utility model G 86 08 291.4 of the applicant.
- German Offenlegungsschrift 34 10 040 the another a CNC-controlled lens edge grinding machine described in which the outer surface and the Inner surface of one in the eyeglass lens edge grinder clamped eyeglass lens blank on one of the Lens shape corresponding curve by two springy stored, pin-shaped feelers that are constantly scanned lie directly on the glass and its axial position Potentiometers is communicated, being by this Potentiometer determined values and data on a computer or be passed on to a data storage device, which spatial course of the front edge and rear edge of the Spectacle lenses and the respective lens thickness calculated and from a stored amount of data from different roof facets selected the roof facet that is on the Attach the peripheral edge of the shaped lens allows at any point without the peripheral edge leave.
- the invention lies therefore based on the task of a method for CNC controlled Shape grinding of the peripheral edge and the roof facet of one To create eyeglass lenses that can be used for eyeglass lenses are intended for a specific spectacle frame and according to the personal optometric data of the Glasses wearer are made without rework in that Have the selected spectacle frame inserted.
- the invention is based on the knowledge that through the personal optometric data of the glasses wearer Course of the roof facet is conditional, which is not with the Course of the facet groove of a selected eyeglass frame must match, although the shaped lens corresponds exactly to the shape of the eyeglass frame that however, an eyeglass lens with one of the facet groove deviating roof facet easily in the glasses frame can be used if the length of the roof facet with the length the faceted groove of the selected eyeglass frame matches.
- the length of the facet groove of the Glasses frame and the length of the roof facet of the Glasses are compared with each other and, the location and / or the course of the roof facet be changed on the peripheral edge of the lens such that the deviation of the length of the facet groove from the the roof facet within given, permissible limits lies without, however, the shape or the dimensions of the shaped glasses can be changed on simple, in the CNC control of the Eyeglass lens grinder programmable way achieve that the molded lens without Rework can be inserted into the selected glasses frame.
- the length of the circumference of the facet groove apex selected glasses frame can be by means of a Determine the odometer, but is preferably the Faceted groove of a selected eyeglass frame using a Measuring device three-dimensionally and are made the length of the circumference of the measured data Facet groove crest calculated. Because the measured Data e.g. B. in the form of polar coordinates for the radial Circumferential course and in the form of additional coordinates in There is a clear axis direction of the lens mathematical relationship between the angle, the radius and the axis coordinate of the space curve of the facet groove vertex, by means of using a suitable Algorithm can calculate the length of the facet groove.
- the computer can be a CNC-controlled Eyeglass lens edge grinding machine from the shape data of a selected glasses frame and personal optometric data of the wearer of the length of the circumference the apex of the in the area of the peripheral edge of the Calculate the lens facet of the roof. This Calculation can be done with the requirement that the facet everywhere the same distance from the front edge of the Should have peripheral edge of the lens.
- this interval periodically between a minimum value and to change a maximum value so that the roof facet undulating, if necessary, to compensate for a very large difference in length.
- a suitable roof facet determines the length of this roof facet with the length of the Faceted groove compared and, if necessary, the location and / or the course of the roof facet can be changed.
- the front and back are preferred one with its shape pre-grinded glasses along the edges with respect to the space curves and the glass thickness scanned, a suitable roof facet determined, the length this roof facet compared to the length of the facet groove and, if necessary, the location and / or the course of the Roof facet changed.
- the accuracy of the method according to the invention manufactured glasses can be increased if the Radius of a predeterminable, associated angle at least a point of the apex of the roof facet of the shaped glasses with reference to a support measured, the measured value entered into a computer, with a stored target value compared and if exceeded a permissible deviation of the Actual value of the target values an additional Grinding the circumferential contour with a radius correction is carried out according to the deviation.
- the radius can preferably be at least one circumferential point a facet of the shape of the polished lens with Be measured in relation to a keyway in the support, which shows that the angle of the roof facet is still is in the range of a permissible value.
- a radius correction according to the deviation usable glasses are created.
- the radius of at least one circumferential point Roof facet of the shape-ground spectacle lens both with With respect to the keyway in the support as well as with reference to a flat area of the support can be measured by Comparison of these measured values determine whether a Radius correction of those measured with reference to the keyway Deviation of the actual value from the target value is still possible or whether the lens with a new or dressed Grinding wheel must be reground.
- a more precise correction of the circumferential contour can be done achieve when the entire circumferential contour is measured with the stored target values compared and in areas Exceeding the permissible values that can be entered into the computer Deviation of the actual values from the target values of the additional, Grinding process with appropriate radius corrections only in the areas of the Circumferential contour is carried out.
- a corresponding measuring device is in the PCT patent application PCT / EP94 / 01945 by the same applicant described, the disclosure content to supplement the Disclosure content of this application is to be used.
- a circular lens blank 1 is said to be a Spectacle lens 2 are produced, the shape of which, for example by scanning a selected spectacle frame using a scanning device in accordance with utility model specification G 86 08 291.4 of the applicant.
- the shape of the Eyeglass lens 2 is then digitized in the form of a three-dimensional amount of data before, the radius ⁇ and angle ⁇ from the geometric center of the eyeglass frame and the Course of the space curve of the facet groove of this glasses frame perpendicular to the radius vector.
- the lens blank is 1 either in an eyeglass lens grinding machine around the X-, Clamp the Y values, or the X, Y values are in the polar coordinates ⁇ .
- ⁇ the lens shape included and taken into account in CNC-controlled form grinding.
- An eyeglass lens edge grinding machine can be used for this use as z. B. in the German patent application 33 16 619 is described.
- FIG. 2 is a section along the line II-II in FIG. 1 shown.
- the areas of the circular Spectacle lens blank 1, which is the shape grinding of Glasses 2 are not shown, are shown hatched.
- the spectacle lens blank 1 and the shape-ground spectacle lens 2 have a spherical front surface 7 with the radius R V and a spherical rear surface 8 with the radius R H.
- the centers of these surfaces 7, 8 lie on an axis 20.
- the shape-ground spectacle lens 2 has a peripheral edge 10 which is delimited by a front edge 4 and a rear edge 5.
- a roof facet 6 with a vertex 3 which is at a distance A 1 from the front edge 4 of the shape-ground spectacle lens 2 and thus from the front surface 7 of the spectacle lens blank 1. Since the front surface 7, as already mentioned, is a spherical surface, the roof facet 6 also lies on a spherical surface with the radius R F , which has the same center point as the radius R V. The length of this roof facet 6 can be calculated precisely because of the clear relationship between the polar coordinates of the peripheral edge 10 and the coordinates in the direction of the optical axis 20.
- this roof facet 6 now deviates from the length of the facet groove of the selected spectacle frame determined by means of the feeler device, an adjustment can be made by, for. B. the radius R F is reduced and / or the center point is shifted on the optical axis 20. This is done arithmetically by means of a suitable programming of the computer of the CNC control for the lens edge grinding machine.
- the personal optometric data of the spectacle wearer require a cylindrical or prismatic cut or if the spectacle lens is to have a close part, there are additional deviations, which is represented, for example, by a dashed front surface 9.
- the roof facet 6 is ground with the spherical radius R F , the distance between the roof facet increases in the lower area to the distance A 2 , so that this results in a protrusion of the spectacle lens over the spectacle frame to the front, which is undesirable for aesthetic reasons .
- the run of the roof facet 6 is changed so that it again has the same distance A 1 from the front surface 9, the length of the roof facet 6 changes and may no longer match the length of the facet groove of the selected eyeglass frame. In this case too, however, the length of the roof facet can be adjusted by changing the radius R F of the roof facet and / or the position of the center point on or next to the optical axis 20.
- Fig. 3 is a circular eyeglass blank 11 as Plus glass is shown, from which a polished Spectacle lens 12 is to be produced.
- the shape-ground Spectacle lens 12 has a front surface 17 and one Rear surface 18 on a leading edge 14 and one Result in rear edge 15.
- On the peripheral edge 19 of the shape-ground spectacle lens 12 is a roof facet 16 arranged here with a wavy course is shown. This representation serves as Illustration of the possibility of the length of the apex 13 the roof facet within relatively large limits the length of the facet groove of the selected eyeglass frame adjust if conditions require.
- the leading edges 4 and 14, the trailing edges 5, 15 and the respective thickness of the shape-ground spectacle lens 2, 12 can be used, for example, by means of the German Patent 38 42 601 described the device Applicant measured and one the peripheral edge 10 or 19th calculate non-leaving roof facet 6 or 16, whose The course then still arithmetically in the manner indicated can be corrected if the length of the apex 3 or 13 of Roof facet 6 or 16 of the length of the apex of the Faceted groove of the selected glasses frame so far deviates that a correction is necessary.
- the accuracy of the method according to the invention manufactured glasses 2, 12 can be increased, if the radius of a predeterminable, associated angle at least one point of the apex 3, 13 of the roof facet 6, 16 of the shape-ground spectacle lens 2, 12 with reference to FIG a support measured, the measured value in a computer entered, compared with a stored target value and if a permissible value that can be entered into the computer is exceeded Deviation of the actual value from the target values additional grinding process of the peripheral contour with a Radius correction carried out according to the deviation becomes.
- the radius of at least one circumferential point is one Roof facet of the polished lens 2, 12 with With respect to a keyway in the support is measured recognizable that the angle of the roof facet 6, 16 still is in the range of a permissible value. In this case by an additional grinding process with the circumferential contour a radius correction according to the deviation usable glasses 2, 12 are created.
- a more precise correction of the circumferential contour can be done achieve when the entire circumferential contour is measured with the stored target values compared and in areas Exceeding the permissible values that can be entered into the computer Deviation of the actual values from the target values of the additional, Grinding process with appropriate radius corrections only in the areas of the Circumferential contour is carried out.
- a corresponding measuring device is in the PCT patent application PCT / EP94 / 01945 by the same applicant described, the disclosure content to supplement the Disclosure content of this application is to be used.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
- Bestimmen der Länge des Umfangs des Facettennutscheitels eines ausgewählten Brillengestells,
- Bestimmen der Länge des Umfangs des Scheitels einer im Bereich des Umfangsrandes eines Brillenglases, das für dieses Brillengestell bestimmt ist und entsprechend den persönlichen optometrischen Daten des Brillenträgers bearbeitet ist oder werden soll, verlaufenden geeigneten Dachfacette,
- Vergleich der Länge der Facettennut mit der der Dachfacette,
- , Verändern der Lage und/oder des Verlaufs der Dachfacette auf dem Umfangsrand des Brillenglases derart, daß die Abweichung der Länge der Facettennut von der der Dachfacette innerhalb vorgegebener, zulässiger Grenzen liegt und
- Fertigschleifen der Dachfacette mit den sich aus dem Vergleich ergebenden, . veränderten Werten.
- Fig. 1
- eine Draufsicht auf einen Brillenglasrohling und ein daraus herzustellendes Brillenglas,
- Fig. 2
- einen Schnitt gemäß II - II in Fig. 1 mit Darstellung eines Minusglases und
- Fig. 3
- einen Schnitt entlang der Linie II - II in Fig. 1 mit Darstellung eines Plusglases.
Claims (12)
- Verfahren zum CNC-gesteuerten Formschleifen der Dachfacette eines Brillenglases mit den Schritten:Bestimmen der Länge des Umfangs des Facettennutscheitels eines ausgewählten Brillengestells,Bestimmen der Länge des Umfangs des Scheitels einer im Bereich des Umfangsrandes eines Brillenglases, das für dieses Brillengestell bestimmt ist und entsprechend den persönlichen optometrischen Daten des Brillenträgers bearbeitet ist oder werden soll, verlaufenden, geeigneten Dachfacette,Vergleich der Länge der Facettennut mit der der Dachfacette, gekennzeichnet durch folgende Schritte:Verändern der Lage und/oder des Verlaufs der Dachfacette auf dem Umfangsrand des Brillenglases derart, daß die Abweichung der Länge der Facettennut von der der Dachfacette innerhalb vorgegebener, zulässiger Grenzen liegt undFertigschleifen der Dachfacette mit den sich aus dem Vergleich ergebenden,. veränderten Werten.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zum Bestimmen der Länge des Umfangs des Facettennutscheitels die Facettennut des ausgewählten Brillengestells mittels einer Abtastvorrichtung dreidimensional vermessen und aus den gemessenen Daten die Länge des Umfanges des Scheitels der Facettennut berechnet wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zum Bestimmen der Länge des Umfangs des Scheitels der Dachfacette des Brillenglases in einen Rechner einer CNC-gesteuerten Brillenglasrandschleifmaschine die Formdaten des ausgewählten Brillengestells und die persönlichen optometrischen Daten des Brillenträgers eingegebenen und die Länge des Umfanges des Scheitels der im Bereich des Umfangsrandes des Brillenglases verlaufenden Dachfacette berechnet wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Anpassen der Länge der Dachfacette an die der Facettennut durch Verändern des Abstands der Dachfacette zur Vorderkante des Umfangsrandes des Brillenglases und/oder des Radius und/oder der Lage des Mittelpunktes einer durch die Dachfacette verlaufenden Kugelfläche erfolgt.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Vorderseite und die Rückseite eines Brillenglasrohlings entsprechend dem Verlauf des Umfangsrandes des zu schleifenden Brillenglases hinsichtlich ihrer Raumkurven und der Glasdicke abgetastet, die Lage einer geeigneten Dachfacette ermittelt, die Länge dieser Dachfacette mit der Länge der Facettennut verglichen und, falls erforderlich, die Lage und/oder der Verlauf der Dachfacette verändert werden.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Vorderseite und die Rückseite eines hinsichtlich seiner Form vorgeschliffenen Brillenglases entlang den Kanten bezüglich der Raumkurven und der Glasdicke abgetastet, die Lage einer geeigneten Dachfacette ermittelt, die Länge dieser Dachfacette mit der Länge der Facettennut verglichen und, falls erforderlich, die Lage und/oder der Verlauf der Dachfacette verändert werden.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Radius eines vorbestimmbaren zugehörigen Winkels wenigstens eines Punktes des Scheitels der Dachfacette des formgeschliffenen Brillenglases mit Bezug auf ein Auflage gemessen, der Meßwert in einen Rechner eingegeben, mit einem gespeicherten Soll-Wert verglichen und bei Überschreiten einer dem Rechner eingebbaren zulässigen Abweichung des Ist-Wertes vom Soll-Wert ein zusätzlicher Schleifvorgang der Umfangskontur mit einer Radiuskorrektur entsprechend der Abweichung durchgeführt wird.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß der Radius wenigstens eines Umfangspunktes der Dachfacette des formgeschliffenen Brillenglases mit Bezug auf eine Keilnut in dem Auflager gemessen wird.
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß der Radius wenigstens eines Umfangspunktes der Dachfacette des formgeschliffenen Brillenglases sowohl mit Bezug auf die Keilnut in dem Auflager als auch mit Bezug auf einen flachen Bereich des Auflagers gemessen wird und durch Vergleich der Meßwerte bestimmt wird, ob eine Radiuskorrektur der mit Bezug auf die Keilnut gemessenen Abweichung des Ist-Wertes vom Soll-Wert möglich ist.
- Verfahren nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß die gesamte Umfangskontur vermessen, mit den gespeicherten Soll-Werten verglichen, bei Überschreiten der dem Rechner eingebbaren zulässigen Abweichung der Ist-Werte von den Soll-Werten durch den Rechner eine Mittelung der gemessenen Abweichungen durchgeführt und der zusätzliche Schleifvorgang der Umfangskontur mit einer Radiuskorrektur entsprechend den gemittelten Werten durchgeführt wird.
- Verfahren nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß die gesamte Umfangskontur vermessen, mit den gespeicherten Soll-Werten verglichen und bei bereichsweise Überschreiten der dem Rechner eingebbaren zulässigen Abweichung der Ist-Werte von den Soll-Werten der zusätzliche Schleifvorgang nur in den eine unzulässige Abweichung aufweisenden Bereichen der Umfangskontur mit einer entsprechenden Radiuskorrektur durchgeführt wird.
- Verfahren nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, daß das Vermessen der Umfangskontur eines formgeschliffenen Brillenglases bei einer gegenüber dem Schleifvorgang erhöhten Drehzahl der Brillenglashaltewelle durchgeführt wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4417533 | 1994-05-19 | ||
DE4417533A DE4417533C2 (de) | 1994-05-19 | 1994-05-19 | Verfahren zum CNC-gesteuerten Formschleifen der Dachfacette eines Brillenglases |
PCT/EP1995/001882 WO1995032075A1 (de) | 1994-05-19 | 1995-05-17 | Verfahren zum cnc-gesteuerten formschleifen des umfangsrandes und der dachfacette eines brillenglases |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0759834A1 EP0759834A1 (de) | 1997-03-05 |
EP0759834B1 true EP0759834B1 (de) | 1998-04-29 |
Family
ID=6518479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95920828A Expired - Lifetime EP0759834B1 (de) | 1994-05-19 | 1995-05-17 | Verfahren zum cnc-gesteuerten formschleifen des umfangsrandes und der dachfacette eines brillenglases |
Country Status (5)
Country | Link |
---|---|
US (1) | US5934972A (de) |
EP (1) | EP0759834B1 (de) |
DE (2) | DE4417533C2 (de) |
ES (1) | ES2117425T3 (de) |
WO (1) | WO1995032075A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19702287C2 (de) * | 1997-01-23 | 1999-02-11 | Wernicke & Co Gmbh | Verfahren zum Ermitteln des Facettenverlaufs auf dem Rand von formzubearbeitenden Brillengläsern und zum Steuern des Formbearbeitens entsprechend dem ermittelten Facettenverlauf |
US6945848B1 (en) * | 1999-10-15 | 2005-09-20 | Kabushiki Kaisha Topcon | Lens shape data processing apparatus and lens grinding machine having the same apparatus |
US6325697B1 (en) * | 1999-11-24 | 2001-12-04 | Glassline Corporation | CNC machine tools |
JP4121696B2 (ja) * | 2000-10-17 | 2008-07-23 | 株式会社トプコン | 眼鏡レンズの面取加工データ作成方法、眼鏡レンズの面取加工方法、眼鏡レンズの面取加工データ作成装置及び眼鏡レンズの面取加工装置 |
US7740519B2 (en) * | 2003-04-16 | 2010-06-22 | Kabushiki Kaisha Topcon | Method for processing chamfering of eyeglass lens and apparatus for processing the same |
ATE535346T1 (de) * | 2005-05-06 | 2011-12-15 | Satisloh Gmbh | Verfahren für die automatische kalibrierung der werkzeuge in einer drehmaschine benutzt für die herstellung von insbesondere brillenlinsen |
WO2016120985A1 (ja) * | 2015-01-27 | 2016-08-04 | 日立マクセル株式会社 | 回転非軸対称なレンズの製造方法、回転非軸対称なレンズ成形型の製造方法、回転非軸対称面ミラーの製造方法、及び回転非軸対称面ミラー成形型の製造方法 |
Family Cites Families (15)
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EP0092364A1 (de) * | 1982-04-14 | 1983-10-26 | The Hanwell Optical Co. Limited | Verfahren und Gerät zur Dimensionierung einer in ein Brillengestell einzupassenden Linse |
FR2543039B1 (fr) * | 1983-03-22 | 1985-08-09 | Essilor Int | Procede pour le biseautage d'une lentille ophtalmique, et machine a meuler automatique correspondante |
US4870784A (en) * | 1983-11-14 | 1989-10-03 | Ait Industries, Inc. | Lens edging machine and method |
DE8608291U1 (de) * | 1986-03-26 | 1986-05-07 | Wernicke & Co GmbH, 4000 Düsseldorf | Tasteinrichtung zum Abtasten der Kontur von Brillengestellöffnungen |
FR2611560B1 (fr) * | 1987-03-05 | 1992-10-02 | Briot Int | Perfectionnements aux machines a meuler et a biseauter les verres ophtalmiques |
DE3842601A1 (de) * | 1988-12-17 | 1990-07-05 | Wernicke & Co Gmbh | Brillenglasrandschleifmaschine |
US5053971A (en) * | 1989-08-30 | 1991-10-01 | Gerber Optical, Inc. | Method and apparatus for edging an optical lens |
JPH0816611B2 (ja) * | 1989-11-15 | 1996-02-21 | 株式会社トプコン | レンズのコバ厚測定方法およびそのための装置 |
US5210695A (en) * | 1990-10-26 | 1993-05-11 | Gerber Optical, Inc. | Single block mounting system for surfacing and edging of a lens blank and method therefor |
WO1993001024A1 (de) * | 1991-07-01 | 1993-01-21 | Wernicke & Co. | Verfahren zur herstellung eines gerandeten brillenglases |
JP3011526B2 (ja) * | 1992-02-04 | 2000-02-21 | 株式会社ニデック | レンズ周縁加工機及びレンズ周縁加工方法 |
FR2697769B1 (fr) * | 1992-11-10 | 1995-01-13 | Buchmann Optical Eng | Machine automatique pour meuler et biseauter les verres ophtalmiques. |
US5512004A (en) * | 1993-06-08 | 1996-04-30 | Coburn Optical Industries, Inc. | Lens edging machine bevel control process |
DE4320934C2 (de) * | 1993-06-24 | 1995-04-20 | Wernicke & Co Gmbh | Brillenglasrandschleifmaschine |
US5577950A (en) * | 1993-11-29 | 1996-11-26 | Coburn Optical Industries, Inc. | Conformal tool operating apparatus and process for an ophthalmic lens finer/polisher |
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1994
- 1994-05-19 DE DE4417533A patent/DE4417533C2/de not_active Expired - Fee Related
-
1995
- 1995-05-17 EP EP95920828A patent/EP0759834B1/de not_active Expired - Lifetime
- 1995-05-17 DE DE59502059T patent/DE59502059D1/de not_active Expired - Fee Related
- 1995-05-17 US US08/737,763 patent/US5934972A/en not_active Expired - Fee Related
- 1995-05-17 WO PCT/EP1995/001882 patent/WO1995032075A1/de active IP Right Grant
- 1995-05-17 ES ES95920828T patent/ES2117425T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1995032075A1 (de) | 1995-11-30 |
EP0759834A1 (de) | 1997-03-05 |
ES2117425T3 (es) | 1998-08-01 |
US5934972A (en) | 1999-08-10 |
DE4417533C2 (de) | 1996-03-21 |
DE59502059D1 (de) | 1998-06-04 |
DE4417533A1 (de) | 1995-12-07 |
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