CS272334B1 - Method of lenses rotating casting and equipment for realization of this method - Google Patents

Method of lenses rotating casting and equipment for realization of this method Download PDF

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Publication number
CS272334B1
CS272334B1 CS883255A CS325588A CS272334B1 CS 272334 B1 CS272334 B1 CS 272334B1 CS 883255 A CS883255 A CS 883255A CS 325588 A CS325588 A CS 325588A CS 272334 B1 CS272334 B1 CS 272334B1
Authority
CS
Czechoslovakia
Prior art keywords
mold
monomer mixture
rotation
liquid
calibrated tube
Prior art date
Application number
CS883255A
Other languages
Czech (cs)
English (en)
Other versions
CS325588A1 (en
Inventor
Jiri Ing Sulc
Zuzana Ing Krcova
Original Assignee
Sulc Jiri
Krcova Zuzana
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 Sulc Jiri, Krcova Zuzana filed Critical Sulc Jiri
Priority to CS883255A priority Critical patent/CS272334B1/cs
Priority to DE1989608763 priority patent/DE68908763T2/de
Priority to EP19890108634 priority patent/EP0341747B1/fr
Priority to CA 599565 priority patent/CA1330855C/fr
Priority to JP11764089A priority patent/JP2801261B2/ja
Publication of CS325588A1 publication Critical patent/CS325588A1/cs
Publication of CS272334B1 publication Critical patent/CS272334B1/cs

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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
    • B29C41/045—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry the axis being placed vertically, e.g. spin casting
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/38—Moulds, cores or other substrates
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/50—Shaping under special conditions, e.g. vacuum
    • 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
    • B29D11/00115—Production of contact lenses made by rotational casting
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Polymerisation Methods In General (AREA)
CS883255A 1988-05-13 1988-05-13 Method of lenses rotating casting and equipment for realization of this method CS272334B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CS883255A CS272334B1 (en) 1988-05-13 1988-05-13 Method of lenses rotating casting and equipment for realization of this method
DE1989608763 DE68908763T2 (de) 1988-05-13 1989-05-12 Verfahren zur Polymerisation von Linsen durch Rotationsgiessen und Vorrichtung zu dessen Durchführung.
EP19890108634 EP0341747B1 (fr) 1988-05-13 1989-05-12 Procédé pour la polymérisation de lentilles pendant le coulage par rotation et dispositif pour la mise en oeuvre
CA 599565 CA1330855C (fr) 1988-05-13 1989-05-12 Methode de moulage par rotation-polymerisation de lentilles, et materiel connexe
JP11764089A JP2801261B2 (ja) 1988-05-13 1989-05-12 レンズの重合回転注型法およびこの方法を行なうための装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS883255A CS272334B1 (en) 1988-05-13 1988-05-13 Method of lenses rotating casting and equipment for realization of this method

Publications (2)

Publication Number Publication Date
CS325588A1 CS325588A1 (en) 1990-04-11
CS272334B1 true CS272334B1 (en) 1991-01-15

Family

ID=5372073

Family Applications (1)

Application Number Title Priority Date Filing Date
CS883255A CS272334B1 (en) 1988-05-13 1988-05-13 Method of lenses rotating casting and equipment for realization of this method

Country Status (5)

Country Link
EP (1) EP0341747B1 (fr)
JP (1) JP2801261B2 (fr)
CA (1) CA1330855C (fr)
CS (1) CS272334B1 (fr)
DE (1) DE68908763T2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3651698B2 (ja) * 1995-04-28 2005-05-25 株式会社アサヒオプティカル プラスチックレンズの製造方法
CZ298423B6 (cs) * 2004-11-24 2007-09-26 Wilens, Spol. S R. O. Zpusob výroby intraokulárních cocek polymeracním odléváním do forem
AT506711B1 (de) 2008-05-05 2011-05-15 Hagleitner Hans Georg Spender für ein fliessfähiges medium
SG168419A1 (en) * 2009-07-10 2011-02-28 Menicon Co Ltd Systems and methods for the production of contact lenses
CN103057023B (zh) * 2013-01-21 2015-03-04 中国科学技术大学 一种用于离心铸造硅胶管的改进方法
GB202401153D0 (en) * 2024-01-29 2024-03-13 Flo Ltd Fabrication of optical articles
GB202506731D0 (en) * 2025-05-02 2025-06-18 Flo Optics Ltd Fabrication of optical articles

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH512980A (de) * 1969-01-20 1971-09-30 Ceskoslovenska Akademie Ved Verfahren zur Herstellung von rotationssymmetrischen Gegenständen durch Schleuderguss
IL62899A0 (fr) * 1981-05-18 1981-07-31
US4422984A (en) * 1982-09-13 1983-12-27 Neefe Charles W Centrifugal casting of contact lenses
US4517139A (en) * 1983-05-02 1985-05-14 International Hydron Corporation Device and method for centrifugally casting articles on a continuous basis
CS243055B1 (en) * 1983-05-23 1986-05-15 Otto Wichterle Contact lenses production equipment
CS247723B1 (en) * 1984-01-26 1987-01-15 Otto Wichterle Method and device for monomeric compounds triturating in moulds for contact lenses centrifugal casting

Also Published As

Publication number Publication date
JPH0278512A (ja) 1990-03-19
EP0341747A3 (fr) 1991-01-16
EP0341747A2 (fr) 1989-11-15
DE68908763T2 (de) 1994-03-24
JP2801261B2 (ja) 1998-09-21
EP0341747B1 (fr) 1993-09-01
DE68908763D1 (de) 1993-10-07
CS325588A1 (en) 1990-04-11
CA1330855C (fr) 1994-07-26

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Legal Events

Date Code Title Description
IF00 In force as of 2000-06-30 in czech republic
MM4A Patent lapsed due to non-payment of fee

Effective date: 20030513