WO2011162958A3 - Methods, devices, and systems for injection molding contact lenses - Google Patents

Methods, devices, and systems for injection molding contact lenses Download PDF

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Publication number
WO2011162958A3
WO2011162958A3 PCT/US2011/039663 US2011039663W WO2011162958A3 WO 2011162958 A3 WO2011162958 A3 WO 2011162958A3 US 2011039663 W US2011039663 W US 2011039663W WO 2011162958 A3 WO2011162958 A3 WO 2011162958A3
Authority
WO
WIPO (PCT)
Prior art keywords
devices
mold
lens
systems
methods
Prior art date
Application number
PCT/US2011/039663
Other languages
French (fr)
Other versions
WO2011162958A2 (en
Inventor
Gregg A. Dean
Original Assignee
Coopervision International Holding Company, Lp
Coopervision, Inc.
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 Coopervision International Holding Company, Lp, Coopervision, Inc. filed Critical Coopervision International Holding Company, Lp
Priority to KR1020137001549A priority Critical patent/KR101742349B1/en
Priority to SG2012090767A priority patent/SG186266A1/en
Priority to CN201180030781.3A priority patent/CN102947081B/en
Priority to EP11798601.8A priority patent/EP2585285B1/en
Priority to US13/704,538 priority patent/US9370906B2/en
Publication of WO2011162958A2 publication Critical patent/WO2011162958A2/en
Publication of WO2011162958A3 publication Critical patent/WO2011162958A3/en
Priority to HK13104835.6A priority patent/HK1177718A1/en

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
    • B29D11/02—Artificial eyes from organic plastic material
    • 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
    • B29D11/00067—Hydrating contact lenses
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
    • 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
    • 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
    • B29D11/0048—Moulds for lenses
    • B29D11/00557—Moulds for lenses with deformable mould walls, e.g. to make lenses with different shapes
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/021—Lenses; Lens systems ; Methods of designing lenses with pattern for identification or with cosmetic or therapeutic effects
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B29C2045/0027—Gate or gate mark locations
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B29L2011/0041—Contact lenses

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Methods, devices, and systems for manufacturing ophthalmic lenses using direct injection molding are described. The present methods, devices, and systems include a mold block having a first mold insert and a second mold insert defining a lens-shaped cavity between them. A raised non-uniform region that projects into the lens-shaped cavity is incorporated in a peripheral zone of the molding surface of at least one of the mold inserts. When an ophthalmic lens is formed using the described mold block, at least one depression is produced in the lens. A gate placed at the non-uniform region allows the depression to hide any gate witness that may form when the mold is closed or separated.
PCT/US2011/039663 2010-06-22 2011-06-08 Methods, devices, and systems for injection molding contact lenses WO2011162958A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020137001549A KR101742349B1 (en) 2010-06-22 2011-06-08 Methods, devices, and systems for injection molding contact lenses
SG2012090767A SG186266A1 (en) 2010-06-22 2011-06-08 Methods, devices, and systems for injection molding contact lenses
CN201180030781.3A CN102947081B (en) 2010-06-22 2011-06-08 Method, Apparatus and system for injection-molded contact lens
EP11798601.8A EP2585285B1 (en) 2010-06-22 2011-06-08 Methods, devices, and systems for injection molding contact lenses
US13/704,538 US9370906B2 (en) 2010-06-22 2011-06-08 Methods, devices, and systems for injection molding contact lenses
HK13104835.6A HK1177718A1 (en) 2010-06-22 2013-04-22 Methods, devices, and systems for injection molding contact lenses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35737110P 2010-06-22 2010-06-22
US61/357,371 2010-06-22

Publications (2)

Publication Number Publication Date
WO2011162958A2 WO2011162958A2 (en) 2011-12-29
WO2011162958A3 true WO2011162958A3 (en) 2012-04-19

Family

ID=45372021

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/039663 WO2011162958A2 (en) 2010-06-22 2011-06-08 Methods, devices, and systems for injection molding contact lenses

Country Status (9)

Country Link
US (1) US9370906B2 (en)
EP (1) EP2585285B1 (en)
KR (1) KR101742349B1 (en)
CN (1) CN102947081B (en)
HK (1) HK1177718A1 (en)
HU (1) HUE056910T2 (en)
MY (1) MY167305A (en)
SG (1) SG186266A1 (en)
WO (1) WO2011162958A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101484716B1 (en) 2012-06-26 2015-01-21 한라비스테온공조 주식회사 Air conditioner for vehicle
US8911080B2 (en) * 2012-08-27 2014-12-16 Johnson & Johnson Vision Care, Inc. Usage compliance indicator for contact lenses
SG2013091079A (en) 2013-01-09 2014-08-28 Johnson & Johnson Vision Care Multi-piece insert device with locking seal for ophthalmic devices
GB201302268D0 (en) * 2013-02-08 2013-03-27 Ocutec Ltd Molding Apparatus and Method
CN104708763B (en) * 2013-12-11 2017-03-01 均豪精密工业股份有限公司 Mirror system processed and the preparation method of eyeglass
CN109477976A (en) * 2016-07-26 2019-03-15 诺华股份有限公司 Toric contact lenses with the ballast label for indicating lens identification code
KR101876701B1 (en) * 2018-01-25 2018-07-09 부산대학교 산학협력단 Mold for manufacturing hydrogel scaffold for culturing three-dimensional cells and method for manufacturing hydrogel scaffold using thereof
JP7183037B2 (en) * 2018-12-28 2022-12-05 株式会社小糸製作所 Resin molded products for vehicles
CN110341096B (en) * 2019-07-10 2020-12-25 苏州瑞尔康科技有限公司 50% water content contact lens molding die and manufacturing method thereof
FR3114040B1 (en) * 2020-09-11 2022-08-26 Faurecia Interieur Ind Mold for making a part in molding material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6772988B2 (en) * 2000-03-31 2004-08-10 Bausch & Lomb Incorporated Method and mold to control optical device polymerization
US20070035049A1 (en) * 2005-08-09 2007-02-15 Coopervision Inc. Systems and methods for removing lenses from lens molds
US20090059166A1 (en) * 2007-08-31 2009-03-05 Menicon Co., Ltd. Contact lens and method of manufacturing the same
US20090303432A1 (en) * 2007-01-16 2009-12-10 Menicon Co., Ltd. Contact Lens and Method of Producing Contact Lens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2665112B2 (en) * 1992-08-25 1997-10-22 本田技研工業株式会社 Injection molding method and injection molding device
JP2908176B2 (en) * 1993-05-18 1999-06-21 株式会社小糸製作所 Synthetic resin laminated lens for vehicle lighting and molding method thereof
US5632936A (en) * 1994-05-04 1997-05-27 Ciba-Geigy Ag Method and apparatus for molding ophthalmic lenses using vacuum injection
US6203156B1 (en) * 1998-03-31 2001-03-20 Johnson & Johnson Vision Care, Inc. Contact lenses bearing marks
DE60124619T2 (en) 2000-05-25 2007-09-20 Novartis Ag Contact lens with injected inversion mark
US9296160B2 (en) 2009-09-11 2016-03-29 Coopervision International Holding Company, Lp Method for moving wet ophthalmic lenses during their manufacture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6772988B2 (en) * 2000-03-31 2004-08-10 Bausch & Lomb Incorporated Method and mold to control optical device polymerization
US20070035049A1 (en) * 2005-08-09 2007-02-15 Coopervision Inc. Systems and methods for removing lenses from lens molds
US20090303432A1 (en) * 2007-01-16 2009-12-10 Menicon Co., Ltd. Contact Lens and Method of Producing Contact Lens
US20090059166A1 (en) * 2007-08-31 2009-03-05 Menicon Co., Ltd. Contact lens and method of manufacturing the same

Also Published As

Publication number Publication date
US9370906B2 (en) 2016-06-21
EP2585285B1 (en) 2021-10-06
SG186266A1 (en) 2013-01-30
KR20130126888A (en) 2013-11-21
US20130188123A1 (en) 2013-07-25
EP2585285A2 (en) 2013-05-01
WO2011162958A2 (en) 2011-12-29
MY167305A (en) 2018-08-16
HUE056910T2 (en) 2022-03-28
CN102947081A (en) 2013-02-27
EP2585285A4 (en) 2017-12-27
KR101742349B1 (en) 2017-05-31
HK1177718A1 (en) 2013-08-30
CN102947081B (en) 2016-08-24

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