EP1094917A1 - Aufnahmevorrichtung für ein brillenglas - Google Patents
Aufnahmevorrichtung für ein brillenglasInfo
- Publication number
- EP1094917A1 EP1094917A1 EP00929414A EP00929414A EP1094917A1 EP 1094917 A1 EP1094917 A1 EP 1094917A1 EP 00929414 A EP00929414 A EP 00929414A EP 00929414 A EP00929414 A EP 00929414A EP 1094917 A1 EP1094917 A1 EP 1094917A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- receiving device
- spectacle lens
- spherical cap
- base
- raw glass
- 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
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
- B24B9/146—Accessories, e.g. lens mounting devices
Definitions
- the invention relates to the use of a receiving device for an eyeglass lens for inserting and removing the eyeglass lens in or from a container and / or for attaching and removing to or from an eyeglass lens holding shaft of an eyeglass lens edge processing machine by means of a handling device
- Such a recording device is described in connection with a system for processing the peripheral edge and / or an optical surface of spectacle lenses in DE 44 14 784 C2 by the same applicant.
- a raw glass is first inserted into an opto-electronic detection device by means of a handling device, which has an electronic image processing and evaluation system for recognizing used markings such as points, crosses, notches on the edge of the raw glass or the location of an existing near part.
- Signals are transmitted from the electronic image processing and evaluation system of the opto-electronic recognition device to a control device for the handling device, so that the raw glass can be inserted into a holder, in particular an eyeglass holding shaft of an eyeglass lens processing machine, by means of the handling device
- the handling device has a movable pick-up device with a single suction device for introducing the raw glass into the detection device and a plurality of curved suction devices for transferring the raw glass from the detection device into the spectacle lens edge processing machine.
- the suction devices are arranged on a ring segment that can be rotated relative to the receiving device , the axis of rotation of which is perpendicular to the individual suction cups.
- a raw glass can be gripped in the area of the edge and placed on a three-point support of the opto-electronic detection device on or in the spectacle lens holding shaft of the spectacle lens edge processing machine, the middle area around the optical axis of the raw lens around to attach the soft elastic head to the swivel arm of the opto-electronic detection device or to insert it into the lens holding shaft in the lens edge machine remains free
- the suction cups can be subjected to negative pressure to hold the raw glass.
- the central suction cup on the holding device serves to close a raw glass out of a container remove and place on the three-point support of the opto-electronic detection device, while the suction cups arranged on the ring segment grip an eyeglass blank from above or below on the three-point support and insert it into the spectacle lens holding shaft, which ensures that there is no obstruction by the guide rod with the soft elastic Head or can enter through the lens holder shaft
- a raw lens can also be inserted into the lens holder shaft by means of the central suction device if it is ensured that the lens is first held on one side on the lens holder shaft and if the lens holder shaft can be moved so far apart is that the receiving device can move into this area and a raw glass can also be inserted by means of this suction device
- the invention is based on the problem of creating a receiving device which is suitable for receiving a spectacle lens by means of a central suction device and inserting it precisely into a position in a spectacle lens holding shaft, in particular exactly axially with respect to the optical surface of the raw lens opposite the receiving device, this receiving device thus should be designed so that it can be used with conventional spectacle lens edge processing machines, the spectacle lens holding shaft need not be adapted to the receiving device
- a receiving device which consists of a base held by the handling device with a depression, a controllable negative pressure connection on the depression, a spherical cap arranged in the depression, tightly fitting against an annular surface of the depression with an opening for depression and one Sealing area on the edge of the spherical cap for contact with an optical surface of the spectacle lens, for inserting and removing the spectacle lens in or from a container and / or for attaching and removing to or from a spectacle lens holding shaft in a lens processing machine by means of a handling device that holds the base
- the spherical cap is placed on an optical surface of a raw glass with the negative pressure application switched off, it adapts to any angular position of this optical surface, while the opposite optical surface maintains its position. If the negative pressure application is switched on, the raw glass is held in the sealing area at the edge of the spherical spherical cap, while the spherical cap is pulled against the annular surface of the recess in the base and is held in this position due to the friction between the annular surface of the recess and the complementary surface of the spherical cap.
- the raw glass is brought between the separated halves of a spectacle lens holding shaft in a spectacle lens edge processing machine by means of the handling device the raw glass with its free Attach the surface precisely and coaxially to the axis of this spectacle lens holding shaft and fasten it there in a suitable manner.
- This can be done by moving the raw lens with the free optical surface directly against a clamping sleeve on this half of the spectacle lens holding shaft that can be pressurized and holding it by applying negative pressure it is possible to provide the optical surface of the raw glass opposite the receiving device in a centering device with a customary block or suction device that can be inserted in the correct position and coaxially into a corresponding clamping sleeve on the corresponding half of the spectacle lens holding shaft.
- the ring surface of the recess in the base can be designed such that there is a linear contact of the surface of the spherical cap.
- the spherical cap can advantageously be fastened movably to the base by means of a mushroom-shaped holder which is guided through the opening, so that it cannot be lost when the negative pressure is released
- the spherical cap can be made entirely of an elastic plastic material, but preferably has a soft lip seal in the sealing area, which ensures good adaptation and sealing to a non-spherical optical surface of the raw glass.
- the dimensions of the base with the spherical cap arranged therein are only insignificantly larger than that of a conventional block or nipple, so that the receiving device according to the invention with a raw glass can be easily moved into the area of the separated halves of the spectacle lens holding shaft This eccentric arrangement of the retaining bolt ensures that the area of the spectacle lens retaining shaft remains completely free of elements of the handling device
- Fig. 1 is a schematic sectional view of a housing part
- Eyeglass lens edge grinding machine with the grinding space and an eyeglass lens holding shaft arranged therein
- Fig. 2 is an enlarged sectional view of the receiving device
- a spectacle lens edge processing machine Of a spectacle lens edge processing machine, only one housing area 1 is shown in section, which shows a machining space 2 for a raw lens and the halves 3, 7 of a spectacle lens holding shaft.
- the axially immovable, rotatable part 3 is referred to as a centering shaft and carries a clamping sleeve 4 at its free end can be pressurized via an axial bore 5 in the centering shaft 3
- a vacuum connection 6 is provided on the housing 1 in the area of the bearing of the centering shaft 3.
- the second half 7 of the spectacle lens holding shaft is arranged, which is referred to as the clamping shaft and Is axially displaceable
- a ball adapter 8 is arranged with a soft support ring.
- the surface of the raw glass 24 facing the clamping sleeve 4 has its axis exactly coaxial with the axis of the centering shaft 3 when the raw glass 24 is attached to the clamping sleeve 4, irrespective of the angular position of the surface of the raw glass 24 by the receiving device 10 is held, occupies
- a block or suction device 25 is attached to the optical surface of the raw glass 24 opposite the receiving device 10 by means of a conventional centering device, and its axis also runs coaxially with the axis of the centering shaft 3 when the handling device 9 also attaches the raw glass to the clamping sleeve 4 the block or suction device 25 can be held in the clamping sleeve 4 by negative pressure if it is sealed in a suitable manner with respect to the clamping sleeve 4, since in this way a secure mounting on the centering shaft 3 is already ensured if the receiving device 10 is released by releasing the negative pressure and before the ball adapter 8 is pressed against the raw glass 24 by axial movement of the tensioning shaft 7
- the holding device 10 is shown in FIG. 2 on an enlarged scale and consists of a base 11 with a depression 12.
- the base 11 has an annular surface 13 which is shaped in a complementary manner to an outer spherical cap surface 19 of a spherical cap 17
- the base 11 has a plate-shaped widening 23, on the one edge region of which a holding bolt 15 is fastened.
- the handling device 9 engages on this holding bolt 15.
- a radial bore 14 leads to an axial bore 16 in the retaining bolt 15 from the recess 12 , 16, the depression 12 can be pressurized in a controlled manner.
- a spherical cap 17 is inserted into the recess 12, the spherical cap surface 19 of which rests sealingly on the annular surface 13.
- the spherical cap 17 is guided by a mushroom-shaped holder 22 which passes through an opening 18 in the spherical cap 17 is held on the base 11.
- An edge 20 of the spherical cap 17 is provided with an annular, soft lip seal 21
- the raw glass 24 provided with a block or suction device 25 in a conventional centering device is, for example, arranged horizontally in a container from which it is to be removed by means of the receiving device 10.
- the block or suction device 25 is inserted into a holder in the container, which determines the position of the block or sucker 25 and the optical surface of the raw glass 24 to which the block or sucker 25 is attached
- the optical surface of the raw glass 24 opposite the block or sucker 25, to which the receiving device 10 is to be attached can have a different angular position, which may be due to the fact that the raw glass 24 is provided with a prismatic or cylindrical cut
- the spherical cap 17 adapts to the angular position of this optical surface, while the relevant position of the block or suction pad 25 or the optical surface against which this block or suction pad 25 rests remains unchanged
- the raw glass 24 can now, as already described with reference to FIG. 1, be attached to the clamping sleeve 4 of the centering shaft 3 and is also held there securely by negative pressure. After the negative pressure has been removed from the receiving device 10, it can be removed from the area of the centering shaft 3 and the move axially displaceable clamping shaft 7, after which the ball adapter 8 with the support clamping ring is moved against the raw glass 24.
- the ball adapter 8 like the spherical cap 17, adapts to the angular position of the optical surface of the raw glass 24 against which this ball adapter 8 is pressed, so that Even when the raw glass 24 is clamped between the centering shaft 3 and the clamping shaft 7, there is no change in the angular position of the optical surface of the raw glass 24 which faces the clamping sleeve 24
- the raw glass 24 can also be attached to the clamping sleeve 4 without prior attachment of a block or suction device 25, if this is provided with an annular seal, as has already been described with reference to the spherical cap 17. In this case too, the angular position is that of the clamping sleeve 4 adjacent surface of the raw glass 24 clearly determined
Landscapes
- 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)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19920204 | 1999-05-03 | ||
DE19920204A DE19920204C2 (de) | 1999-05-03 | 1999-05-03 | Aufnahmevorrichtung für ein Brillenglas |
PCT/EP2000/003669 WO2000066325A1 (de) | 1999-05-03 | 2000-04-22 | Aufnahmevorrichtung für ein brillenglas |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1094917A1 true EP1094917A1 (de) | 2001-05-02 |
EP1094917B1 EP1094917B1 (de) | 2003-01-29 |
Family
ID=7906744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00929414A Expired - Lifetime EP1094917B1 (de) | 1999-05-03 | 2000-04-22 | Aufnahmevorrichtung für ein brillenglas |
Country Status (4)
Country | Link |
---|---|
US (1) | US6419570B1 (de) |
EP (1) | EP1094917B1 (de) |
DE (2) | DE19920204C2 (de) |
WO (1) | WO2000066325A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2491096C (en) * | 2002-06-28 | 2012-01-10 | Carl-Zeiss-Stiftung Trading As Carl Zeiss | Method and apparatus for aligning optical elements |
JP4098046B2 (ja) * | 2002-09-20 | 2008-06-11 | 株式会社トプコン | レンズ研削加工装置 |
FR2878978B1 (fr) * | 2004-12-03 | 2007-04-27 | Essilor Int | Methode de blocage d'une lentille ophtalmique en vue de son detourage et dispositif de preparation automatique au montage d'une lentille ophtalmique |
CN100386179C (zh) * | 2005-05-24 | 2008-05-07 | 亚洲光学股份有限公司 | 重置定心系统 |
CN100544889C (zh) * | 2006-09-06 | 2009-09-30 | 财团法人工业技术研究院 | 负压真空吸附装置及使用该装置的磨边装置 |
FR2958870B1 (fr) * | 2010-04-20 | 2012-04-20 | Essilor Int | Procede de detourage d'une lentille ophtalmique de lunettes |
JP2014200888A (ja) * | 2013-04-05 | 2014-10-27 | ローム株式会社 | 吸引保持装置およびウエハ研磨装置 |
ITMI20131758A1 (it) * | 2013-10-22 | 2015-04-23 | Mei S R L | Processo di lavorazione di una lente |
JP6270865B2 (ja) * | 2013-10-29 | 2018-01-31 | オリンパス株式会社 | レンズ保持具 |
CN105150050A (zh) * | 2015-07-28 | 2015-12-16 | 中国科学院长春光学精密机械与物理研究所 | 一种通用型光学元件抛光用真空夹具 |
CN105345870A (zh) * | 2015-11-10 | 2016-02-24 | 丹阳佰易视光学眼镜有限公司 | 一种无框眼镜片开槽机 |
CN112959171B (zh) * | 2021-02-01 | 2022-08-19 | 大鼎光学薄膜(中山)有限公司 | 一种高精度光学镜片加工工艺 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1577425A (de) | 1968-04-25 | 1969-08-08 | ||
DE2252503C3 (de) * | 1972-10-26 | 1975-12-18 | Wilhelm Loh Kg Optikmaschinenfabrik, 6330 Wetzlar | Futter für optische Linsen zur Verwendung in Linsenschleif- oder Poliermaschinen |
US3978620A (en) * | 1973-05-30 | 1976-09-07 | Agfa-Gevaert, A.G. | Apparatus for working the marginal zones of a lens |
US4164099A (en) * | 1978-02-10 | 1979-08-14 | Grant Alan H | Contact lens tool |
FR2551382B1 (fr) * | 1983-09-02 | 1986-05-16 | Essilor Int | Procede et dispositif pour le surfacage d'une lentille optique |
JPS6056863A (ja) | 1983-09-06 | 1985-04-02 | Nippon Kogaku Kk <Nikon> | レンズ研摩機のレンズ保持具 |
EP0169932B1 (de) * | 1984-08-03 | 1987-04-22 | Wilhelm Loh Wetzlar Optikmaschinen GmbH & Co. KG | Vorrichtung zum Halten von empfindlichen Werkstücken, insbesondere von optischen Linsen und anderen optischen Bauelementen |
JPH04250963A (ja) * | 1990-12-28 | 1992-09-07 | Olympus Optical Co Ltd | レンズ研削・研磨機のワーク保持装置 |
FR2682058B1 (fr) | 1991-10-04 | 1993-12-10 | Buchmann Optical Engineering | Appareil pour relver la topographie de la face convexe d'un verre optique et machine de pose d'un adaptateur integrant un tel appareil. |
GB2275633B (en) * | 1993-03-05 | 1996-07-10 | Europtica Int Ltd | Lens blocking |
DE4414784C2 (de) * | 1994-04-28 | 1996-07-18 | Wernicke & Co Gmbh | Anlage zum Schleifen des Umfangsrandes und/ oder einer optischen Oberfläche von Brillengläsern |
-
1999
- 1999-05-03 DE DE19920204A patent/DE19920204C2/de not_active Expired - Fee Related
-
2000
- 2000-04-22 WO PCT/EP2000/003669 patent/WO2000066325A1/de active IP Right Grant
- 2000-04-22 DE DE50001162T patent/DE50001162D1/de not_active Expired - Lifetime
- 2000-04-22 EP EP00929414A patent/EP1094917B1/de not_active Expired - Lifetime
- 2000-04-22 US US09/720,946 patent/US6419570B1/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0066325A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2000066325A1 (de) | 2000-11-09 |
DE50001162D1 (de) | 2003-03-06 |
DE19920204C2 (de) | 2001-10-31 |
DE19920204A1 (de) | 2000-11-16 |
EP1094917B1 (de) | 2003-01-29 |
US6419570B1 (en) | 2002-07-16 |
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