DK0447361T3 - Mold for contact lenses - Google Patents

Mold for contact lenses

Info

Publication number
DK0447361T3
DK0447361T3 DK91810152.8T DK91810152T DK0447361T3 DK 0447361 T3 DK0447361 T3 DK 0447361T3 DK 91810152 T DK91810152 T DK 91810152T DK 0447361 T3 DK0447361 T3 DK 0447361T3
Authority
DK
Denmark
Prior art keywords
contact lenses
mould
mold
casting
moulding surface
Prior art date
Application number
DK91810152.8T
Other languages
Danish (da)
Inventor
Wilhelm Hoerner
Peter Hoefer
Peter Hagmann
Original Assignee
Ciba Geigy Ag
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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Application granted granted Critical
Publication of DK0447361T3 publication Critical patent/DK0447361T3/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
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00057—Production of contact lenses characterised by the shape or surface condition of the edge, e.g. flashless, burrless, smooth
    • 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
    • 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
    • B29C33/20—Opening, closing or clamping
    • B29C33/202—Clamping means operating on closed or nearly closed mould parts, the clamping means being independently movable of the opening or closing 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/26—Moulds or cores
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/40—Compensating volume change, e.g. retraction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Led Device Packages (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Push-Button Switches (AREA)
  • Table Devices Or Equipment (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Lens Barrels (AREA)
  • Materials For Photolithography (AREA)

Abstract

A mould for casting contact lenses comprises two casting mould halves. On a female mould part (1) there is formed a concave moulding surface (11) and on a male mould part (2) there is formed a convex moulding surface (21). The two joined casting mould halves (1 and 2) hold together by frictional connection. <IMAGE>
DK91810152.8T 1990-03-16 1991-03-07 Mold for contact lenses DK0447361T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH87390 1990-03-16

Publications (1)

Publication Number Publication Date
DK0447361T3 true DK0447361T3 (en) 1994-06-20

Family

ID=4197163

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91810152.8T DK0447361T3 (en) 1990-03-16 1991-03-07 Mold for contact lenses

Country Status (13)

Country Link
EP (1) EP0447361B1 (en)
JP (1) JP3035673B2 (en)
KR (1) KR0160779B1 (en)
AT (1) ATE106317T1 (en)
AU (1) AU639538B2 (en)
CA (1) CA2038283A1 (en)
DE (1) DE59101743D1 (en)
DK (1) DK0447361T3 (en)
ES (1) ES2054472T3 (en)
HK (1) HK205696A (en)
IE (1) IE64685B1 (en)
IL (1) IL97175A (en)
PT (1) PT97018B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271875A (en) * 1991-09-12 1993-12-21 Bausch & Lomb Incorporated Method for molding lenses
US5238388A (en) * 1991-12-06 1993-08-24 Johnson & Johnson Vision Products, Inc. Ophthalmic lens mold seal
US5573715A (en) * 1992-12-21 1996-11-12 Johnson & Johnson Vision Products, Inc. Method for treating an ophthalmic lens mold
US5326505A (en) * 1992-12-21 1994-07-05 Johnson & Johnson Vision Products, Inc. Method for treating an ophthalmic lens mold
US5407062A (en) * 1994-01-28 1995-04-18 Bausch & Lomb Incorporated Contact lens mold packaging
US5540410A (en) * 1994-06-10 1996-07-30 Johnson & Johnson Vision Prod Mold halves and molding assembly for making contact lenses
DE19727671C2 (en) * 1997-06-30 2000-04-13 Woehlk Contact Linsen Gmbh Device for producing molded articles from a polymerizable mixture
US6592356B1 (en) 1999-05-05 2003-07-15 Johnson & Johnson Vision Care, Inc. Mold, molding system and molding machine for making ophthalmic devices
USD458023S1 (en) 1999-10-13 2002-06-04 Johnson & Johnson Vision Care, Inc. Contact lens container
US6368522B1 (en) 2000-01-03 2002-04-09 Johnson & Johnson Vision Care, Inc. Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture
EP1441898B1 (en) * 2001-10-11 2008-08-20 Coopervision International Holding Company, LP. Insert and method for cast molding contact lenses with a rounded edge form
KR100882283B1 (en) * 2005-05-03 2009-03-06 정규선 Contact lens making device
EP2240314B1 (en) 2007-12-31 2012-11-21 Bausch & Lomb Incorporated Casting mold for forming a biomedical device including an ophthalmic device
CN101890817B (en) * 2009-05-22 2013-11-20 鸿富锦精密工业（深圳）有限公司 Method for molding lens array by stamping
KR200476473Y1 (en) * 2014-08-28 2015-03-09 김규만 Apparatus for molding of contact lens
ES2781979T3 (en) * 2015-05-13 2020-09-09 Bausch & Lomb Toric Contact Lens Cast Molding

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1779712A1 (en) * 1968-09-14 1971-09-09 Wilhelm Lehnhardt Device for the production of self-contained components, in particular window frames and the like, from a core surrounded by a glass fiber reinforced cast resin jacket
GB8601967D0 (en) * 1986-01-28 1986-03-05 Coopervision Optics Manufacturing contact lenses
GB2216065A (en) * 1988-02-24 1989-10-04 Galley Geoffrey H Contact lens production
GB8900616D0 (en) * 1989-01-12 1989-03-08 Galley Geoffrey H Methods of manufacturing contact lenses

Also Published As

Publication number Publication date
EP0447361A1 (en) 1991-09-18
JPH04226310A (en) 1992-08-17
ES2054472T3 (en) 1994-08-01
IL97175A (en) 1996-01-31
CA2038283A1 (en) 1991-09-17
JP3035673B2 (en) 2000-04-24
IE910891A1 (en) 1991-10-09
IE64685B1 (en) 1995-08-23
EP0447361B1 (en) 1994-06-01
AU7357891A (en) 1991-09-19
AU639538B2 (en) 1993-07-29
HK205696A (en) 1996-11-22
PT97018B (en) 1998-10-30
KR910016472A (en) 1991-11-05
PT97018A (en) 1993-05-31
IL97175A0 (en) 1992-05-25
ATE106317T1 (en) 1994-06-15
DE59101743D1 (en) 1994-07-07
KR0160779B1 (en) 1999-01-15

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment