DE69918346D1 - Verfahren und Gussform zur Herstellung einer Kontaktlinse mit Prismenballast - Google Patents

Verfahren und Gussform zur Herstellung einer Kontaktlinse mit Prismenballast

Info

Publication number
DE69918346D1
DE69918346D1 DE69918346T DE69918346T DE69918346D1 DE 69918346 D1 DE69918346 D1 DE 69918346D1 DE 69918346 T DE69918346 T DE 69918346T DE 69918346 T DE69918346 T DE 69918346T DE 69918346 D1 DE69918346 D1 DE 69918346D1
Authority
DE
Germany
Prior art keywords
mold
making
contact lens
prism ballast
ballast
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 - Fee Related
Application number
DE69918346T
Other languages
English (en)
Other versions
DE69918346T2 (de
Inventor
Hiroyuki Oyama
Yuuzi Gotou
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.)
Menicon Co Ltd
Original Assignee
Menicon Co 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 Menicon Co Ltd filed Critical Menicon Co Ltd
Application granted granted Critical
Publication of DE69918346D1 publication Critical patent/DE69918346D1/de
Publication of DE69918346T2 publication Critical patent/DE69918346T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • 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
    • 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
    • B29D11/00932—Combined cutting and grinding thereof
    • B29D11/00942—Combined cutting and grinding thereof where the lens material is mounted in a support for mounting onto a cutting device, e.g. a lathe, and where the support is of machinable material, e.g. plastics
    • 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
    • G02C7/048—Means for stabilising the orientation of lenses in the eye

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
DE69918346T 1998-03-09 1999-03-08 Verfahren und Gussform zur Herstellung einer Kontaktlinse mit Prismenballast Expired - Fee Related DE69918346T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5687898 1998-03-09
JP10056878A JPH11258553A (ja) 1998-03-09 1998-03-09 プリズムバラスト型コンタクトレンズ及びその製造方法並びにそれに用いられるモールド型

Publications (2)

Publication Number Publication Date
DE69918346D1 true DE69918346D1 (de) 2004-08-05
DE69918346T2 DE69918346T2 (de) 2005-09-08

Family

ID=13039684

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69918346T Expired - Fee Related DE69918346T2 (de) 1998-03-09 1999-03-08 Verfahren und Gussform zur Herstellung einer Kontaktlinse mit Prismenballast

Country Status (4)

Country Link
US (1) US6158861A (de)
EP (1) EP0942311B1 (de)
JP (1) JPH11258553A (de)
DE (1) DE69918346T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2394939C (en) * 1999-12-16 2007-10-30 Asahikasei Aime Co., Ltd. Long-wearable soft contact lens
US7628485B2 (en) 2000-03-31 2009-12-08 Coopervision International Holding Company, Lp Contact lens having a uniform horizontal thickness profile
US6467903B1 (en) * 2000-03-31 2002-10-22 Ocular Sciences, Inc. Contact lens having a uniform horizontal thickness profile
US6595639B1 (en) * 2000-11-10 2003-07-22 Ocular Sciences, Inc. Junctionless ophthalmic lenses and methods for making same
JP2003103401A (ja) * 2001-09-28 2003-04-08 Tomey Corp 光学レンズの製造方法
JP2003103532A (ja) * 2001-09-28 2003-04-09 Tomey Corp 眼用レンズの製造方法
TW544982B (en) * 2002-04-18 2003-08-01 Hon Hai Prec Ind Co Ltd Optical sealing cap and method of making the same
WO2004015480A1 (en) * 2002-08-06 2004-02-19 Novartis Ag Contact lenses
WO2004104675A2 (en) * 2003-05-21 2004-12-02 Novartis Ag Contact lenses
ES2732439T3 (es) 2004-08-27 2019-11-22 Coopervision Int Holding Co Lp Lentes de contacto de hidrogel de silicona
US9322958B2 (en) 2004-08-27 2016-04-26 Coopervision International Holding Company, Lp Silicone hydrogel contact lenses
AR062067A1 (es) 2006-07-17 2008-10-15 Novartis Ag Lentes de contacto toricas con perfil de potencia optica controlado
JP4575997B2 (ja) 2008-05-13 2010-11-04 株式会社メニコン コンタクトレンズ
US20130235334A1 (en) * 2011-08-31 2013-09-12 Michael F. Widman Ophthalmic lens forming optic
US9283718B2 (en) * 2012-05-25 2016-03-15 Johnson & Johnson Vision Care, Inc. Reduced-tilt back plastic feature for a contact lens mold
EP2876486B1 (de) 2012-07-18 2019-02-13 Menicon Co., Ltd. Kontaktlinse und herstellungsverfahren für die kontaktlinse
WO2014050879A1 (ja) 2012-09-25 2014-04-03 国立大学法人大阪大学 近視進行抑制能を有するコンタクトレンズおよび近視進行抑制能を有するコンタクトレンズセット
US9352493B2 (en) * 2013-02-08 2016-05-31 Johnson & Johnson Vision Care, Inc. Casting cup assembly for forming an ophthalmic device
MY175124A (en) * 2013-10-31 2020-06-09 Alcon Inc Method for producing ophthalmic lenses
US10175504B2 (en) 2015-10-01 2019-01-08 Menicon Co., Ltd. Contact Lens
US10786959B2 (en) * 2016-07-18 2020-09-29 Johnson & Johnson Vision Care, Inc Mold for contact lens with non-rotationally symmetric rim or edge
US12496790B2 (en) 2022-06-03 2025-12-16 Wavefront Dynamnics Inc. Customized manufacture of molds for making wavefront-customized contact lens using a wavefront aberrometer

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113224A (en) * 1975-04-08 1978-09-12 Bausch & Lomb Incorporated Apparatus for forming optical lenses
GB2082957A (en) * 1980-07-18 1982-03-17 Neefe Optical Lab Inc An Improved Method of Making Bifocal Contact Lenses
ZA817299B (en) * 1980-10-23 1982-09-29 Polymatic Investment Corp Nv Molded toric contact lenses
US4407766A (en) * 1981-05-26 1983-10-04 National Patent Development Corporation Molds and procedure for producing truncated contact lenses
US4681295A (en) * 1983-05-26 1987-07-21 International Hydron Corporation Tricurve optical metal master mold and method of making
US4614624A (en) * 1985-03-12 1986-09-30 Neefe Charles W Method of molding bifocal lenses
US5110278A (en) * 1990-11-30 1992-05-05 Pilkington Visioncare, Inc. Injection molding apparatus for producing a toric lens casting mold arbor
US5245366A (en) * 1991-10-31 1993-09-14 Svochak Jan B Bifocal contact lens and method of making same
US5422687A (en) * 1993-03-31 1995-06-06 Menicon Co., Ltd. Contact lens wherein central correction region has a center 0.2-2.4mm offset from lens geometric center and a diameter of 0.8-3.5mm
US5532768A (en) * 1993-10-04 1996-07-02 Menicon Co., Ltd. Contact lens
CA2181982C (en) * 1994-01-31 1999-07-06 Attilio Apollonio Method of cast molding toric contact lenses
DE69807334T2 (de) * 1997-06-30 2003-04-10 Bausch & Lomb Inc., Rochester Verfahren zum spritzgiessen einer asymmetrischen kontakt-linse

Also Published As

Publication number Publication date
JPH11258553A (ja) 1999-09-24
DE69918346T2 (de) 2005-09-08
EP0942311B1 (de) 2004-06-30
US6158861A (en) 2000-12-12
EP0942311A1 (de) 1999-09-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee