BE820731A - Kunststoflens en werkwijze ter vervaardiging daarvan - Google Patents

Kunststoflens en werkwijze ter vervaardiging daarvan

Info

Publication number
BE820731A
BE820731A BE149237A BE149237A BE820731A BE 820731 A BE820731 A BE 820731A BE 149237 A BE149237 A BE 149237A BE 149237 A BE149237 A BE 149237A BE 820731 A BE820731 A BE 820731A
Authority
BE
Belgium
Prior art keywords
manufacture
plastic lens
lens
plastic
Prior art date
Application number
BE149237A
Other languages
English (en)
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 filed Critical
Publication of BE820731A publication Critical patent/BE820731A/nl

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F18/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
    • C08F18/02—Esters of monocarboxylic acids
    • C08F18/04—Vinyl esters
    • C08F18/08—Vinyl acetate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Ophthalmology & Optometry (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Eyeglasses (AREA)
  • Polymerization Catalysts (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
BE149237A 1974-02-11 1974-10-04 Kunststoflens en werkwijze ter vervaardiging daarvan BE820731A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/441,645 US3944637A (en) 1974-02-11 1974-02-11 Increasing the yield of cast plastic lenses

Publications (1)

Publication Number Publication Date
BE820731A true BE820731A (nl) 1975-02-03

Family

ID=23753719

Family Applications (1)

Application Number Title Priority Date Filing Date
BE149237A BE820731A (nl) 1974-02-11 1974-10-04 Kunststoflens en werkwijze ter vervaardiging daarvan

Country Status (10)

Country Link
US (1) US3944637A (nl)
JP (1) JPS50110481A (nl)
BE (1) BE820731A (nl)
BR (1) BR7500738A (nl)
CA (1) CA1035095A (nl)
DE (1) DE2457202A1 (nl)
FR (1) FR2260590B1 (nl)
GB (1) GB1460933A (nl)
IT (1) IT1025885B (nl)
NL (1) NL7412671A (nl)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845445B2 (ja) * 1975-03-26 1983-10-11 日本原子力研究所 透明プラスチック成形体の製法
US4113686A (en) * 1977-06-09 1978-09-12 Burton, Parsons And Company, Inc. Hydrophilic contact lenses and lens polymer
US4238524A (en) * 1978-03-06 1980-12-09 American Optical Corporation Process for identification marking clear plastic articles
FR2449522A1 (fr) * 1979-02-20 1980-09-19 Essilor Int Procede de moulage, et moule correspondant, notamment pour moulage de lentilles ophtalmiques en matiere organique
NL8301482A (nl) * 1983-04-27 1984-11-16 Philips Nv Matrijs en methode voor de vervaardiging van voorwerpen van kunststof onder toepassing van de matrijs.
CS239282B1 (en) * 1983-08-17 1986-01-16 Otto Wichterle Preparation method of objects made from hydrophilic gelsnamely contact lences by polymer casting
US4664859A (en) * 1983-12-02 1987-05-12 Vcf Films Inc. Div. Of Pmc Process for solvent casting a film
US4537911A (en) * 1984-01-13 1985-08-27 The Dow Chemical Company Interface beads for mixed-bed ion exchange resins
US4623708A (en) 1985-03-01 1986-11-18 Coburn Optical Industries, Inc. Prepolymerization of monomer compositions containing diethylene glycol bis(allyl carbonate)
US4693446A (en) * 1985-09-20 1987-09-15 Techna Vision, Inc. Gasket for molding plastic lenses
GB8611837D0 (en) * 1986-05-15 1986-06-25 Plessey Co Plc Photochromic spiropyran compounds
GB8614680D0 (en) * 1986-06-17 1986-07-23 Plessey Co Plc Photoreactive lenses
US5753730A (en) * 1986-12-15 1998-05-19 Mitsui Toatsu Chemicals, Inc. Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur-containing urethane resin lens and lens prepared thereby
JPH0694495B2 (ja) * 1987-04-18 1994-11-24 株式会社トクヤマ 重合性組成物
CA1316315C (en) * 1988-02-22 1993-04-20 Nobuyuki Kajimoto Highly-refractive plastic lens and process for making the lens
NO174729C (no) * 1991-07-10 1994-06-22 Neosign As Fluorescerende folie
JP3969609B2 (ja) * 1997-09-17 2007-09-05 Ｈｏｙａ株式会社 プラスチックレンズ用注型成形材料およびプラスチックレンズの製造方法
US20070037897A1 (en) * 2005-08-12 2007-02-15 Guigui Wang Method for making contact lenses
EP2637847B1 (en) 2010-11-10 2014-07-23 Novartis AG Method for making contact lenses
CN114316125B (zh) * 2022-01-27 2023-05-23 江苏铁锚玻璃股份有限公司 高耐热性有机玻璃配方及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542386A (en) * 1947-12-03 1951-02-20 John O Beattie Manufacture of plastic lenses from monomeric materials
GB1117191A (en) * 1964-10-13 1968-06-19 Mitsubishi Rayon Co Process for producing synthetic resin article having mar-resistant surface
US3422168A (en) * 1964-12-01 1969-01-14 Ppg Industries Inc Process of casting resinous lenses in thermoplastic cast replica molds

Also Published As

Publication number Publication date
GB1460933A (en) 1977-01-06
FR2260590B1 (nl) 1978-05-05
DE2457202A1 (de) 1975-08-14
IT1025885B (it) 1978-08-30
CA1035095A (en) 1978-07-18
US3944637A (en) 1976-03-16
BR7500738A (pt) 1975-11-18
JPS50110481A (nl) 1975-08-30
FR2260590A1 (nl) 1975-09-05
NL7412671A (nl) 1975-08-13

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