GB9017839D0 - Contact lens mould - Google Patents

Contact lens mould

Info

Publication number
GB9017839D0
GB9017839D0 GB909017839A GB9017839A GB9017839D0 GB 9017839 D0 GB9017839 D0 GB 9017839D0 GB 909017839 A GB909017839 A GB 909017839A GB 9017839 A GB9017839 A GB 9017839A GB 9017839 D0 GB9017839 D0 GB 9017839D0
Authority
GB
United Kingdom
Prior art keywords
contact lens
lens mould
mould
contact
lens
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
Application number
GB909017839A
Other versions
GB2235407B (en
GB2235407A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MJS Scientific Ltd
Original Assignee
MJS Scientific Ltd
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 MJS Scientific Ltd filed Critical MJS Scientific Ltd
Publication of GB9017839D0 publication Critical patent/GB9017839D0/en
Publication of GB2235407A publication Critical patent/GB2235407A/en
Application granted granted Critical
Publication of GB2235407B publication Critical patent/GB2235407B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/303—Mounting, exchanging or centering centering mould parts or halves, e.g. during mounting
    • 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
    • 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
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/0048—Moulds for lenses
    • B29D11/005—Moulds for lenses having means for aligning the front and back 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/005—Compensating volume or shape change during moulding, in general
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
GB9017839A 1989-08-29 1990-08-14 Contact lens mould Expired - Fee Related GB2235407B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898919532A GB8919532D0 (en) 1989-08-29 1989-08-29 Contact lens mould

Publications (3)

Publication Number Publication Date
GB9017839D0 true GB9017839D0 (en) 1990-09-26
GB2235407A GB2235407A (en) 1991-03-06
GB2235407B GB2235407B (en) 1993-01-13

Family

ID=10662221

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898919532A Pending GB8919532D0 (en) 1989-08-29 1989-08-29 Contact lens mould
GB9017839A Expired - Fee Related GB2235407B (en) 1989-08-29 1990-08-14 Contact lens mould

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898919532A Pending GB8919532D0 (en) 1989-08-29 1989-08-29 Contact lens mould

Country Status (1)

Country Link
GB (2) GB8919532D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5620720A (en) * 1994-11-29 1997-04-15 Allergan Cast molding of intraocular lenses
CA2362668A1 (en) * 1999-12-09 2001-06-14 Johnson & Johnson Vision Care, Inc. Molds for use in contact lens production
US8287269B2 (en) * 2005-12-12 2012-10-16 Johnson & Johnson Vision Care, Inc. Molds for use in contact lens production
US9283718B2 (en) * 2012-05-25 2016-03-15 Johnson & Johnson Vision Care, Inc. Reduced-tilt back plastic feature for a contact lens mold
ES2781979T3 (en) 2015-05-13 2020-09-09 Bausch & Lomb Toric Contact Lens Cast Molding

Also Published As

Publication number Publication date
GB2235407B (en) 1993-01-13
GB2235407A (en) 1991-03-06
GB8919532D0 (en) 1989-10-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010814