HK86488A - Manufacturing process of half-finished contact lenses - Google Patents

Manufacturing process of half-finished contact lenses

Info

Publication number
HK86488A
HK86488A HK864/88A HK86488A HK86488A HK 86488 A HK86488 A HK 86488A HK 864/88 A HK864/88 A HK 864/88A HK 86488 A HK86488 A HK 86488A HK 86488 A HK86488 A HK 86488A
Authority
HK
Hong Kong
Prior art keywords
blank
semi
produced
contact lens
finished
Prior art date
Application number
HK864/88A
Other languages
English (en)
Inventor
Otto-Christian Dr Geyer
Frank Dr Wingler
Original Assignee
Bayer 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 Bayer Ag filed Critical Bayer Ag
Publication of HK86488A publication Critical patent/HK86488A/xx

Links

Classifications

    • 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
    • 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
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • 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
    • 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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Coloring (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
HK864/88A 1984-07-28 1988-10-27 Manufacturing process of half-finished contact lenses HK86488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3427887 1984-07-28

Publications (1)

Publication Number Publication Date
HK86488A true HK86488A (en) 1988-11-04

Family

ID=6241811

Family Applications (1)

Application Number Title Priority Date Filing Date
HK864/88A HK86488A (en) 1984-07-28 1988-10-27 Manufacturing process of half-finished contact lenses

Country Status (7)

Country Link
EP (1) EP0170141B1 (ja)
JP (1) JPS6141118A (ja)
KR (1) KR860001357A (ja)
AT (1) ATE34335T1 (ja)
DE (1) DE3562730D1 (ja)
ES (1) ES8608399A1 (ja)
HK (1) HK86488A (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0220919A3 (en) * 1985-10-21 1989-04-12 Shin-Etsu Chemical Co., Ltd. Contact lens
DE3543357A1 (de) * 1985-12-07 1987-06-11 Bayer Ag Verfahren und vorrichtung zur herstellung von kontaktlinsen-rohlingen mit fertig ausgebildeten rueckflaechen-geometrien
US5141677A (en) * 1991-01-22 1992-08-25 Minnesota Mining And Manufacturing Company Method of hot stamping intraocular lens bodies
US5760100B1 (en) 1994-09-06 2000-11-14 Ciba Vision Corp Extended wear ophthalmic lens
US7468398B2 (en) 1994-09-06 2008-12-23 Ciba Vision Corporation Extended wear ophthalmic lens
JP4087947B2 (ja) * 1998-05-08 2008-05-21 Ｈｏｙａヘルスケア株式会社 ガス透過型ハードコンタクトレンズの製造方法
US6162376A (en) 1999-02-24 2000-12-19 Mead Opthalmics Compression molding of optical lenses
KR100368014B1 (ko) * 2000-10-18 2003-01-24 (주)보성기연 에프.알.피 플랜지관 제조방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH280552A (de) * 1950-03-23 1952-01-31 Diplom Optiker Albert Braun Fa Verfahren und Vorrichtung zur Herstellung von Augenhaftschalen.
GB819474A (en) * 1955-05-13 1959-09-02 Frederick Thomas Ridley Contact lenses
AT265699B (de) * 1966-02-15 1968-10-25 Ceskoslovenska Akademie Ved Verfahren zur Herstellung von Linsen mit asphärischen Flächen aus Plasten
DE2729385A1 (de) * 1976-07-12 1978-01-19 American Optical Corp Verfahren zum herstellen einer thermoplastischen linse vermittels verformen in fester phase
DE3325055A1 (de) * 1983-07-12 1985-01-24 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von kontaktoptischen gegenstaenden

Also Published As

Publication number Publication date
EP0170141A3 (en) 1986-07-09
ATE34335T1 (de) 1988-06-15
ES545600A0 (es) 1986-06-16
JPS6141118A (ja) 1986-02-27
KR860001357A (ko) 1986-02-26
DE3562730D1 (en) 1988-06-23
EP0170141B1 (de) 1988-05-18
EP0170141A2 (de) 1986-02-05
ES8608399A1 (es) 1986-06-16

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Legal Events

Date Code Title Description
NR Patent deemed never to have been added to the register under section 13(7) of patents (transitional arrangements) rules