GB2237241B - Contact lens cast moulding and packaging - Google Patents

Contact lens cast moulding and packaging

Info

Publication number
GB2237241B
GB2237241B GB9025556A GB9025556A GB2237241B GB 2237241 B GB2237241 B GB 2237241B GB 9025556 A GB9025556 A GB 9025556A GB 9025556 A GB9025556 A GB 9025556A GB 2237241 B GB2237241 B GB 2237241B
Authority
GB
United Kingdom
Prior art keywords
packaging
contact lens
cast moulding
lens cast
moulding
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.)
Expired - Lifetime
Application number
GB9025556A
Other versions
GB2237241A (en
GB9025556D0 (en
Inventor
Ronald Shade Hamilton
William Edward Seden
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.)
BTG International Ltd
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
British Technology Group 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
Priority claimed from GB888825650A external-priority patent/GB8825650D0/en
Priority claimed from GB898904720A external-priority patent/GB8904720D0/en
Application filed by National Research Development Corp UK, British Technology Group Ltd filed Critical National Research Development Corp UK
Priority to GB9025556A priority Critical patent/GB2237241B/en
Publication of GB9025556D0 publication Critical patent/GB9025556D0/en
Publication of GB2237241A publication Critical patent/GB2237241A/en
Application granted granted Critical
Publication of GB2237241B publication Critical patent/GB2237241B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B29D11/0048—Moulds for lenses
    • B29D11/00567—Moulds for lenses wherein the mould forms part of the final package for 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0011—Moulds or cores; Details thereof or accessories therefor thin-walled moulds
    • B29C33/0016—Lost moulds, e.g. staying on the moulded object
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • 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
    • B29D11/00865—Applying coatings; tinting; colouring
    • B29D11/00894—Applying coatings; tinting; colouring colouring or tinting
    • B29D11/00903—Applying coatings; tinting; colouring colouring or tinting on the surface
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0838—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using laser
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
    • B29C2071/0018—Absorbing ingredients, e.g. drugs, flavourings, UV screeners, embedded in the articles
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0045—Perforating
    • 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
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0068—Permeability to liquids; Adsorption

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
GB9025556A 1988-11-02 1990-11-23 Contact lens cast moulding and packaging Expired - Lifetime GB2237241B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9025556A GB2237241B (en) 1988-11-02 1990-11-23 Contact lens cast moulding and packaging

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB888825650A GB8825650D0 (en) 1988-11-02 1988-11-02 Contact lens cast mouldings
GB898904720A GB8904720D0 (en) 1989-03-02 1989-03-02 Contact lens cast moulding packaging
GB9025556A GB2237241B (en) 1988-11-02 1990-11-23 Contact lens cast moulding and packaging

Publications (3)

Publication Number Publication Date
GB9025556D0 GB9025556D0 (en) 1991-01-09
GB2237241A GB2237241A (en) 1991-05-01
GB2237241B true GB2237241B (en) 1993-01-13

Family

ID=27264149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9025556A Expired - Lifetime GB2237241B (en) 1988-11-02 1990-11-23 Contact lens cast moulding and packaging

Country Status (1)

Country Link
GB (1) GB2237241B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5316700A (en) * 1992-11-02 1994-05-31 Wesley-Jessen Corporation Method and apparatus for removing excess lens forming material
US5697495A (en) * 1993-11-02 1997-12-16 Johnson & Johnson Vision Products, Inc. Packaging arrangement for contact lenses
US6012471A (en) * 1994-06-10 2000-01-11 Johnson & Johnson Vision Products, Inc. Automated method and apparatus for single sided hydration of soft contact lenses in package carriers
GB9524452D0 (en) * 1995-11-30 1996-01-31 Award Plc Contact lens packaging
JPH10315252A (en) * 1997-05-20 1998-12-02 Menicon Co Ltd Mold for molding lens blank and manufacture of contact lens
US6207086B1 (en) 1999-02-18 2001-03-27 Johnson & Johnson Vision Care, Inc. Method and apparatus for washing or hydration of ophthalmic devices
GB2355686A (en) * 1999-10-25 2001-05-02 Hydron Ltd A method of forming an ophthalmic device
US7001138B2 (en) 2002-03-01 2006-02-21 Johnson & Johnson Vision Care, Inc. Split collar for mechanical arm connection

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2040213A (en) * 1979-01-15 1980-08-28 American Optical Corp Method and apparatus for making plastics lenses
GB2185933A (en) * 1986-01-28 1987-08-05 Coopervision Optics Moulding contact lenses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2040213A (en) * 1979-01-15 1980-08-28 American Optical Corp Method and apparatus for making plastics lenses
GB2185933A (en) * 1986-01-28 1987-08-05 Coopervision Optics Moulding contact lenses

Also Published As

Publication number Publication date
GB2237241A (en) 1991-05-01
GB9025556D0 (en) 1991-01-09

Similar Documents

Publication Publication Date Title
IL85860A (en) Contact lens
GB2216062B (en) Moulding
GB2230730B (en) Lens mould
GB2237241B (en) Contact lens cast moulding and packaging
GB2235408B (en) Contact lens mould
EP0340636A3 (en) Contact lens
GB2235407B (en) Contact lens mould
GB2237240C (en) Contact lens cast moulding method and packaging
GR3022419T3 (en) Contact lens cast moulding and packaging
HK16994A (en) Contact lens cast moulding and packaging
GB2254582B (en) Moulds
GB8825650D0 (en) Contact lens cast mouldings
GB8904720D0 (en) Contact lens cast moulding packaging
GB2215265B (en) Moulds
GB2220159B (en) Casting mould
GB2225552B (en) Gang-pot mould
GB2225553B (en) Gang-pot mould
GB8905474D0 (en) Contact lens mould
RO101257B1 (en) Casting mould
IL88109A0 (en) Mould
GB8821416D0 (en) Moulds
GB8829173D0 (en) Moulds
GB8823341D0 (en) Moulds
GB8821417D0 (en) Moulds
PL270357A1 (en) Permanent casting mould

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
773C Action not proceeded with (sect. 73/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20091026