SG79215A1 - Wedge demolding of cast lens mold assemblies - Google Patents
Wedge demolding of cast lens mold assembliesInfo
- Publication number
- SG79215A1 SG79215A1 SG9701011A SG1997001011A SG79215A1 SG 79215 A1 SG79215 A1 SG 79215A1 SG 9701011 A SG9701011 A SG 9701011A SG 1997001011 A SG1997001011 A SG 1997001011A SG 79215 A1 SG79215 A1 SG 79215A1
- Authority
- SG
- Singapore
- Prior art keywords
- mold
- wedge
- separating
- frontcurve
- array
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00038—Production of contact lenses
- B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
- B29D11/00192—Demoulding, e.g. separating lenses from mould halves
- B29D11/00221—Demoulding, e.g. separating lenses from mould halves using prying means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/006—Handling moulds, e.g. between a mould store and a moulding machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/0011—Moulds or cores; Details thereof or accessories therefor thin-walled moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/46—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles using fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0003—Discharging moulded articles from the mould
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/808—Lens mold
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Robotics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Eyeglasses (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/626,730 US5693268A (en) | 1996-04-01 | 1996-04-01 | Wedge demolding of cast lens mold assemblies |
Publications (1)
Publication Number | Publication Date |
---|---|
SG79215A1 true SG79215A1 (en) | 2001-03-20 |
Family
ID=24511592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG9701011A SG79215A1 (en) | 1996-04-01 | 1997-03-31 | Wedge demolding of cast lens mold assemblies |
Country Status (9)
Country | Link |
---|---|
US (1) | US5693268A (ja) |
EP (1) | EP0799689B1 (ja) |
JP (1) | JPH1058456A (ja) |
AT (1) | ATE242688T1 (ja) |
AU (1) | AU706354B2 (ja) |
CA (1) | CA2201260C (ja) |
DE (1) | DE69722697T2 (ja) |
SG (1) | SG79215A1 (ja) |
TW (1) | TW467826B (ja) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002515837A (ja) * | 1996-11-06 | 2002-05-28 | ボシュ アンド ロム インコーポレイテッド | コンタクトレンズの金型部分からの分離方法および装置 |
US6082987A (en) * | 1997-02-20 | 2000-07-04 | Technology Resources International Corporation | Apparatus for assembling a lens-forming device |
US6103148A (en) * | 1998-02-19 | 2000-08-15 | Technology Resources International Corporation | Method for curing a lens-forming fluid |
USD434050S (en) * | 1999-12-06 | 2000-11-21 | Technology Resource International Corporation | Gasket for lens making |
US6558584B1 (en) | 2000-03-31 | 2003-05-06 | Bausch & Lomb Incorporated | Apparatus and method for handling an ophthalmic lens |
GB2360730B (en) * | 2000-03-31 | 2004-09-22 | Bausch & Lomb Uk Ltd | Apparatus and method for separating contact lens molds |
US6514436B1 (en) | 2000-05-31 | 2003-02-04 | Bausch & Lomb Incorporated | Apparatus and method for clamping and releasing contact lens molds |
US6663801B2 (en) * | 2001-04-06 | 2003-12-16 | Johnson & Johnson Vision Care, Inc. | Silicon carbide IR-emitter heating device and method for demolding lenses |
US6708397B2 (en) * | 2001-08-09 | 2004-03-23 | Johnson & Johnson Vision Care, Inc. | Inlay station with alignment assemblies and transfer tubes |
JP4695798B2 (ja) * | 2001-09-28 | 2011-06-08 | 株式会社メニコンネクト | 眼用レンズの分離方法およびそれに用いる分離装置 |
US7628810B2 (en) | 2003-05-28 | 2009-12-08 | Acufocus, Inc. | Mask configured to maintain nutrient transport without producing visible diffraction patterns |
US20050062179A1 (en) * | 2003-09-22 | 2005-03-24 | Sanjay Rastogi | Automated method for transferring lenses in a hydrated state from molds to receivers |
GB2409427A (en) * | 2003-12-23 | 2005-06-29 | Bausch & Lomb | Handling moulded opthalmic lenses |
CN1933962B (zh) * | 2004-03-24 | 2010-05-05 | 诺瓦提斯公司 | 用于制造隐形眼镜的方法 |
US20060071356A1 (en) * | 2004-10-04 | 2006-04-06 | Kevin Beebe | Method for separating excess material from a lens mold |
US7799249B2 (en) * | 2005-08-09 | 2010-09-21 | Coopervision International Holding Company, Lp | Systems and methods for producing silicone hydrogel contact lenses |
US9102110B2 (en) * | 2005-08-09 | 2015-08-11 | Coopervision International Holding Company, Lp | Systems and methods for removing lenses from lens molds |
CN101405623A (zh) * | 2006-03-20 | 2009-04-08 | 库柏维景国际控股公司 | 用于硅氧水凝胶的脱模助剂和相关方法 |
EP2066493B1 (en) * | 2006-09-21 | 2011-03-30 | Novartis AG | Method of de-molding contact lenses |
ES2403585T3 (es) | 2006-12-21 | 2013-05-20 | Bausch & Lomb Incorporated | Procedimiento para liberar una lente moldeada en una cavidad entre secciones de molde posterior y anterior |
CN101579907B (zh) * | 2008-05-16 | 2013-05-08 | 鸿富锦精密工业(深圳)有限公司 | 分模装置 |
TWI409153B (zh) * | 2008-05-30 | 2013-09-21 | Hon Hai Prec Ind Co Ltd | 分模裝置 |
DE102008062477B3 (de) * | 2008-12-16 | 2010-03-25 | Airbus Deutschland Gmbh | Verfahren, System und Formwerkzeug zum Herstellen von Bauteilen aus Faserverbundwerkstoffen |
CA2770732C (en) | 2009-08-13 | 2017-04-25 | Acufocus, Inc. | Corneal inlay with nutrient transport structures |
US10004593B2 (en) | 2009-08-13 | 2018-06-26 | Acufocus, Inc. | Intraocular lens with elastic mask |
EP3290003B1 (en) | 2009-08-13 | 2023-12-13 | AcuFocus, Inc. | Method of manufacturing masked intraocular implants and lenses |
US8313675B2 (en) * | 2009-08-31 | 2012-11-20 | Coopervision International Holding Company, Lp | Demolding of ophthalmic lenses during the manufacture thereof |
US9623614B2 (en) | 2010-11-10 | 2017-04-18 | Novartis Ag | Method for making contact lenses |
US9545303B2 (en) | 2011-12-02 | 2017-01-17 | Acufocus, Inc. | Ocular mask having selective spectral transmission |
US9427922B2 (en) | 2013-03-14 | 2016-08-30 | Acufocus, Inc. | Process for manufacturing an intraocular lens with an embedded mask |
CN103990783B (zh) * | 2014-04-26 | 2017-02-15 | 浙江精一重工有限公司 | 一种铸造装置 |
EP3220859B8 (en) | 2014-11-19 | 2020-06-10 | AcuFocus, Inc. | Fracturable mask for treating presbyopia |
WO2017062316A1 (en) | 2015-10-05 | 2017-04-13 | Acufocus, Inc. | Methods of molding intraocular lenses |
CA3005891C (en) | 2015-11-24 | 2023-12-12 | Acufocus, Inc. | Toric small aperture intraocular lens with extended depth of focus |
US10286594B2 (en) | 2015-11-25 | 2019-05-14 | Clearcorrect Operating, Llc | Batch thermoformer for dental appliances |
CN109803814A (zh) * | 2016-10-14 | 2019-05-24 | 诺华股份有限公司 | 制造接触镜片的方法 |
US11279103B2 (en) | 2016-10-14 | 2022-03-22 | Alcon Inc. | Method for producing contact lenses |
WO2019217471A1 (en) | 2018-05-09 | 2019-11-14 | Acufocus, Inc. | Intraocular implant with removable optic |
EP3865290B1 (en) * | 2020-02-13 | 2023-12-27 | Essilor International | Machine and method for disassembling a lens mold assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792947A (en) * | 1972-07-10 | 1974-02-19 | A Diehl | Molding apparatus |
US5160749A (en) * | 1990-10-30 | 1992-11-03 | Minnesota Mining And Manufacturing Company | Three piece mold assembly for making an ocular device |
US5417557A (en) * | 1992-09-18 | 1995-05-23 | Johnson & Johnson Vision Products, Inc. | Laser assisted demolding of ophthalmic lenses |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2365764A (en) * | 1942-03-06 | 1944-12-26 | Akron Standard Mold Co | Method and apparatus for stripping articles from molds |
GB572748A (en) * | 1944-01-27 | 1945-10-22 | John Johnson | Improvements in or relating to the moulding of plastics |
US3851038A (en) * | 1972-08-02 | 1974-11-26 | Sybron Corp | Method of depositing a stack of reinforcing members in a mold and molding |
JPS58187317A (ja) * | 1982-04-28 | 1983-11-01 | Matsushima Kogyo Co Ltd | 合成樹脂製レンズの離型装置 |
CA1230517A (en) * | 1982-08-25 | 1987-12-22 | Ladislao W. Putkowski | Press with wedge |
CA1263208A (en) * | 1985-12-19 | 1989-11-28 | Kirk K.S. Hwang | Method and apparatus for making optical devices |
US5137441A (en) * | 1990-10-30 | 1992-08-11 | Minnesota Mining And Manufacturing Company | Mold assembly for making an ocular lens blank |
US5358672A (en) * | 1992-06-08 | 1994-10-25 | Innotech, Inc. | Method for removing finished articles from glass, plastic or metallic molds |
DE4414977A1 (de) * | 1994-04-29 | 1995-11-02 | Wilhelm Hegler | Vorrichtung zur Herstellung von Rohren aus thermoplastischem Kunststoff mit Querprofilierung |
-
1996
- 1996-04-01 US US08/626,730 patent/US5693268A/en not_active Expired - Lifetime
-
1997
- 1997-03-27 EP EP97302131A patent/EP0799689B1/en not_active Expired - Lifetime
- 1997-03-27 AU AU16636/97A patent/AU706354B2/en not_active Expired
- 1997-03-27 CA CA002201260A patent/CA2201260C/en not_active Expired - Lifetime
- 1997-03-27 DE DE69722697T patent/DE69722697T2/de not_active Expired - Lifetime
- 1997-03-27 AT AT97302131T patent/ATE242688T1/de not_active IP Right Cessation
- 1997-03-31 JP JP9094399A patent/JPH1058456A/ja active Pending
- 1997-03-31 SG SG9701011A patent/SG79215A1/en unknown
- 1997-05-12 TW TW086106260A patent/TW467826B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792947A (en) * | 1972-07-10 | 1974-02-19 | A Diehl | Molding apparatus |
US5160749A (en) * | 1990-10-30 | 1992-11-03 | Minnesota Mining And Manufacturing Company | Three piece mold assembly for making an ocular device |
US5417557A (en) * | 1992-09-18 | 1995-05-23 | Johnson & Johnson Vision Products, Inc. | Laser assisted demolding of ophthalmic lenses |
Also Published As
Publication number | Publication date |
---|---|
AU1663697A (en) | 1997-10-09 |
EP0799689A8 (en) | 2006-07-12 |
AU706354B2 (en) | 1999-06-17 |
EP0799689A2 (en) | 1997-10-08 |
TW467826B (en) | 2001-12-11 |
EP0799689B1 (en) | 2003-06-11 |
US5693268A (en) | 1997-12-02 |
MX9702424A (es) | 1998-03-31 |
DE69722697T2 (de) | 2004-04-29 |
CA2201260A1 (en) | 1997-10-01 |
DE69722697D1 (de) | 2003-07-17 |
EP0799689A3 (en) | 1998-01-28 |
JPH1058456A (ja) | 1998-03-03 |
ATE242688T1 (de) | 2003-06-15 |
CA2201260C (en) | 2006-06-06 |
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