JPS54148055A - Molding of lens with degree - Google Patents

Molding of lens with degree

Info

Publication number
JPS54148055A
JPS54148055A JP5680478A JP5680478A JPS54148055A JP S54148055 A JPS54148055 A JP S54148055A JP 5680478 A JP5680478 A JP 5680478A JP 5680478 A JP5680478 A JP 5680478A JP S54148055 A JPS54148055 A JP S54148055A
Authority
JP
Japan
Prior art keywords
pressure
cavities
resin
lens
degree
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.)
Pending
Application number
JP5680478A
Other languages
Japanese (ja)
Other versions
JPS5953858B2 (en
Inventor
Kaname Hashimoto
Hitoshi Tanaka
Original Assignee
Daicel Chem Ind 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 Daicel Chem Ind Ltd filed Critical Daicel Chem Ind Ltd
Priority to JP5680478A priority Critical patent/JPS5953858B2/ja
Publication of JPS54148055A publication Critical patent/JPS54148055A/en
Publication of JPS5953858B2 publication Critical patent/JPS5953858B2/ja
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00Producing optical elements, e.g. lenses or prisms
    • B29D11/00009Production of simple or compound lenses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561Injection-compression moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Abstract

PURPOSE:To cover the resin volume shrinkage in cooling by compression, and to eliminate the sink in the thick part of a lens with a degree, by compressing a cast molten resin, utilizing the mold clamping force of an injection molding machine. CONSTITUTION:The working plate 8 is pushed by the low clamping pressure F1 due to the hydraulic pressure of the machine 12 to press the movable core plate 3 to the fixed core plate 1. The working clearance 9 is left between the plates 3 and 8 to form the cavities 6 containing the volume shrinkage. The molten resin 10 is injected into the cavities 6 at a pressure below the pressure F1 to increase the clamping pressure to the maximum and to advance the movable cores 4. The resin 10 in the cavities 6 is thus compressed not to flow back from the gates 11.
JP5680478A 1978-05-13 1978-05-13 Expired JPS5953858B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5680478A JPS5953858B2 (en) 1978-05-13 1978-05-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5680478A JPS5953858B2 (en) 1978-05-13 1978-05-13

Publications (2)

Publication Number Publication Date
JPS54148055A true JPS54148055A (en) 1979-11-19
JPS5953858B2 JPS5953858B2 (en) 1984-12-27

Family

ID=13037572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5680478A Expired JPS5953858B2 (en) 1978-05-13 1978-05-13

Country Status (1)

Country Link
JP (1) JPS5953858B2 (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174227A (en) * 1981-03-31 1982-10-26 Zeiss Stiftung Molding tool for manufacturing member consisting of thermoplastic material
JPS6122917A (en) * 1984-07-10 1986-01-31 Sumitomo Chem Co Ltd Press-molding method of thermoplastic resin
JPS61127323A (en) * 1984-11-27 1986-06-14 Hitachi Ltd Mold assembly for injection compression molding
JPS61177222A (en) * 1985-02-04 1986-08-08 Meiki Co Ltd Molding of thin lens by injection molder
JPS61206616A (en) * 1985-03-11 1986-09-12 Meiki Co Ltd Injection compression molding machine
JPS62105616A (en) * 1985-11-01 1987-05-16 Daicel Chem Ind Ltd Injection mold of optical disk
JPS62207612A (en) * 1986-03-07 1987-09-12 Matsushita Electric Ind Co Ltd Manufacture of replica plate
EP0244783A2 (en) * 1986-05-05 1987-11-11 Galic/Maus Ventures Method and apparatus for molding articles
JPS6394807A (en) * 1986-10-09 1988-04-25 Toshiba Mach Co Ltd Injection compression molding
JPS63135211A (en) * 1986-11-28 1988-06-07 Sony Corp Injection molding method for disc
JPS63209915A (en) * 1987-02-27 1988-08-31 Sony Corp Resin molding equipment
JPH01114409A (en) * 1987-10-28 1989-05-08 Toyoda Gosei Co Ltd Mold for cast molding
US4907960A (en) * 1986-11-26 1990-03-13 Cincinnati Milacron Inc. Hydraulic system for a toggle-type plastic injection molding machine capable of precision coining
US4933119A (en) * 1987-10-13 1990-06-12 Gentex Corporation Molding apparatus and method
US5415817A (en) * 1993-10-22 1995-05-16 Industrial Technology Research Institute Process for molding plastic lenses
EP0778119A1 (en) 1995-12-04 1997-06-11 Hoya Corporation Injection compression molding method of a spectacle lens and a spectacle lens produced by using the same
US5855824A (en) * 1995-12-04 1999-01-05 Hoya Corporation Ejecting method of a molding in an injection molding apparatus
US5948327A (en) * 1996-04-05 1999-09-07 Hoya Corporation Lens injection-compression-molding method
US6156242A (en) * 1996-02-29 2000-12-05 Hoya Corporation Method of injection molding plastic lens
US6210610B1 (en) 1996-01-18 2001-04-03 Hoya Corporation Method of manufacturing lens, injection mold for molding of lens, and molded lens
JP2002187177A (en) * 2000-12-21 2002-07-02 Polyplastics Co Method for manufacturing injection compression molded article
JP2004510607A (en) * 2000-10-02 2004-04-08 クラウス−マッファイ クンストシュトッフテヒニーク ゲゼルシャフト ミット ベシュレンクテル ハフツングKrauss−Maffei Kunststofftechnik GmbH Method and apparatus for producing thick molded parts
USRE38617E1 (en) * 1997-03-18 2004-10-12 Hoya Corporation Method of injection molding plastic lens
US7763191B2 (en) 2005-05-27 2010-07-27 Gentex Optics, Inc. Method and apparatus for performing an in-mold coining operation
US7914273B2 (en) 2004-10-29 2011-03-29 Konica Minolta Opto, Inc. Optical component molding apparatus
JP2014516003A (en) * 2011-06-09 2014-07-07 イノファレンス・ベー・フェー Molds and methods for manufacturing contacts or intraocular lenses

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100853061B1 (en) * 2004-08-02 2008-08-19 코니카 미놀타 옵토 인코포레이티드 Manufacturing apparatus for optical part

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174227A (en) * 1981-03-31 1982-10-26 Zeiss Stiftung Molding tool for manufacturing member consisting of thermoplastic material
JPS6122917A (en) * 1984-07-10 1986-01-31 Sumitomo Chem Co Ltd Press-molding method of thermoplastic resin
JPH051128B2 (en) * 1984-11-27 1993-01-07 Hitachi Ltd
JPS61127323A (en) * 1984-11-27 1986-06-14 Hitachi Ltd Mold assembly for injection compression molding
JPS61177222A (en) * 1985-02-04 1986-08-08 Meiki Co Ltd Molding of thin lens by injection molder
JPS61206616A (en) * 1985-03-11 1986-09-12 Meiki Co Ltd Injection compression molding machine
JPH0312530B2 (en) * 1985-03-11 1991-02-20 Meiki Seisakusho Kk
JPH0586328B2 (en) * 1985-11-01 1993-12-10 Daicel Chem
JPS62105616A (en) * 1985-11-01 1987-05-16 Daicel Chem Ind Ltd Injection mold of optical disk
JPS62207612A (en) * 1986-03-07 1987-09-12 Matsushita Electric Ind Co Ltd Manufacture of replica plate
JPS62268620A (en) * 1986-05-05 1987-11-21 Galic Maus Ventures Method and device for molding article
EP0244783A2 (en) * 1986-05-05 1987-11-11 Galic/Maus Ventures Method and apparatus for molding articles
JPS6394807A (en) * 1986-10-09 1988-04-25 Toshiba Mach Co Ltd Injection compression molding
JPH0511533B2 (en) * 1986-10-09 1993-02-15 Toshiba Machine Co Ltd
US4907960A (en) * 1986-11-26 1990-03-13 Cincinnati Milacron Inc. Hydraulic system for a toggle-type plastic injection molding machine capable of precision coining
JPS63135211A (en) * 1986-11-28 1988-06-07 Sony Corp Injection molding method for disc
JPH0675888B2 (en) * 1986-11-28 1994-09-28 ソニー株式会社 Disk injection molding method
JPS63209915A (en) * 1987-02-27 1988-08-31 Sony Corp Resin molding equipment
US4933119A (en) * 1987-10-13 1990-06-12 Gentex Corporation Molding apparatus and method
JPH01114409A (en) * 1987-10-28 1989-05-08 Toyoda Gosei Co Ltd Mold for cast molding
JPH0528968B2 (en) * 1987-10-28 1993-04-28 Toyoda Gosei Kk
US5415817A (en) * 1993-10-22 1995-05-16 Industrial Technology Research Institute Process for molding plastic lenses
US5855824A (en) * 1995-12-04 1999-01-05 Hoya Corporation Ejecting method of a molding in an injection molding apparatus
US5972252A (en) * 1995-12-04 1999-10-26 Hoya Corporation Injection compression molding method of a spectacle lens and a spectacle lens produced by using the same
EP0778119A1 (en) 1995-12-04 1997-06-11 Hoya Corporation Injection compression molding method of a spectacle lens and a spectacle lens produced by using the same
US6210610B1 (en) 1996-01-18 2001-04-03 Hoya Corporation Method of manufacturing lens, injection mold for molding of lens, and molded lens
US6156242A (en) * 1996-02-29 2000-12-05 Hoya Corporation Method of injection molding plastic lens
US5948327A (en) * 1996-04-05 1999-09-07 Hoya Corporation Lens injection-compression-molding method
USRE38617E1 (en) * 1997-03-18 2004-10-12 Hoya Corporation Method of injection molding plastic lens
JP4646181B2 (en) * 2000-10-02 2011-03-09 クラウスマッファイ テヒノロギース ゲゼルシャフト ミット ベシュレンクテル ハフツングKraussMaffei Technologies GmbH Method and apparatus for manufacturing thick optical lenses
JP2004510607A (en) * 2000-10-02 2004-04-08 クラウス−マッファイ クンストシュトッフテヒニーク ゲゼルシャフト ミット ベシュレンクテル ハフツングKrauss−Maffei Kunststofftechnik GmbH Method and apparatus for producing thick molded parts
JP2002187177A (en) * 2000-12-21 2002-07-02 Polyplastics Co Method for manufacturing injection compression molded article
US7914273B2 (en) 2004-10-29 2011-03-29 Konica Minolta Opto, Inc. Optical component molding apparatus
US7763191B2 (en) 2005-05-27 2010-07-27 Gentex Optics, Inc. Method and apparatus for performing an in-mold coining operation
JP2014516003A (en) * 2011-06-09 2014-07-07 イノファレンス・ベー・フェー Molds and methods for manufacturing contacts or intraocular lenses
US9919485B2 (en) 2011-06-09 2018-03-20 Innovalens B.V. Cast mould and method for manufacturing contact or intraocular lenses

Also Published As

Publication number Publication date
JPS5953858B2 (en) 1984-12-27

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