BE864672A - Procede et appareil pour le moulage de lentilles plastiques optiques du type standard et bifocal - Google Patents

Procede et appareil pour le moulage de lentilles plastiques optiques du type standard et bifocal

Info

Publication number
BE864672A
BE864672A BE185751A BE185751A BE864672A BE 864672 A BE864672 A BE 864672A BE 185751 A BE185751 A BE 185751A BE 185751 A BE185751 A BE 185751A BE 864672 A BE864672 A BE 864672A
Authority
BE
Belgium
Prior art keywords
standard
plastic lenses
optical plastic
molding optical
bifocal type
Prior art date
Application number
BE185751A
Other languages
English (en)
Original Assignee
Greshes Martin
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 Greshes Martin filed Critical Greshes Martin
Publication of BE864672A publication Critical patent/BE864672A/fr

Links

Classifications

    • 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
    • B29D11/00028—Bifocal lenses; Multifocal 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
    • B29D11/00528—Consisting of two mould halves joined by an annular gasket
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/808—Lens mold

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
BE185751A 1977-03-10 1978-03-08 Procede et appareil pour le moulage de lentilles plastiques optiques du type standard et bifocal BE864672A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77612977A 1977-03-10 1977-03-10
US05/810,357 US4190621A (en) 1977-03-10 1977-06-27 Method for molding optical plastic lenses of the standard and bifocal type

Publications (1)

Publication Number Publication Date
BE864672A true BE864672A (fr) 1978-07-03

Family

ID=27119152

Family Applications (1)

Application Number Title Priority Date Filing Date
BE185751A BE864672A (fr) 1977-03-10 1978-03-08 Procede et appareil pour le moulage de lentilles plastiques optiques du type standard et bifocal

Country Status (18)

Country Link
US (1) US4190621A (fr)
JP (1) JPS53124570A (fr)
BE (1) BE864672A (fr)
CA (1) CA1098268A (fr)
CH (1) CH625458A5 (fr)
DE (1) DE2809610A1 (fr)
DK (1) DK105278A (fr)
ES (2) ES467649A1 (fr)
FI (1) FI780749A7 (fr)
FR (1) FR2383002A1 (fr)
GB (1) GB1601327A (fr)
IE (1) IE46344B1 (fr)
IL (1) IL54079A (fr)
IT (1) IT1108328B (fr)
NL (1) NL7802485A (fr)
NO (1) NO780731L (fr)
PT (1) PT67745A (fr)
SE (1) SE7802719L (fr)

Families Citing this family (109)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364878A (en) * 1978-08-10 1982-12-21 Omnitech Inc. Method for molding ophthalmic lenses
GB2040785B (en) * 1978-12-28 1983-01-26 Philips Electronic Associated Producing polymer glass asherical optical elements
US4522768A (en) * 1979-05-11 1985-06-11 Sola Products Limited Casting gasket assembly and method for casting lenses therefrom
US4284399A (en) * 1980-06-23 1981-08-18 American Optical Corporation Contact lens mold
US4637904A (en) * 1983-11-14 1987-01-20 Rohm And Haas Company Process for molding a polymeric layer onto a substrate
US4605524A (en) * 1984-11-19 1986-08-12 Danker Laboratories, Inc. Method and master-die for casting a bifocal contact lens in a single piece
FR2576820B1 (fr) * 1985-02-01 1989-04-07 Essilor Int Bague d'appui pour la fixation d'un bloc de montage sur la face finie a courbure progressivement variable d'une ebauche semi-finie d'un palet, tel que lentille ophtalmique ou moule
US4693446A (en) * 1985-09-20 1987-09-15 Techna Vision, Inc. Gasket for molding plastic lenses
JPS62295001A (ja) * 1986-06-14 1987-12-22 Nippon Sheet Glass Co Ltd 合成樹脂製多焦点球面レンズおよびその製法
JPS63247014A (ja) * 1987-04-03 1988-10-13 Takashi Mori 透明カプセルの製造装置
BR8802923A (pt) * 1987-06-18 1989-01-03 Ocular Technologies Inc Processo de fabricacao de uma lente de contato,matriz para fabricacao de uma lente de contato e forma para fabricar uma matriz
US5147585A (en) * 1987-10-30 1992-09-15 Blum Ronald D Method for forming plastic optical quality spectacle lenses
US5178800A (en) * 1990-10-10 1993-01-12 Innotech, Inc. Method for forming plastic optical quality spectacle lenses
US5219497A (en) * 1987-10-30 1993-06-15 Innotech, Inc. Method for manufacturing lenses using thin coatings
FR2638391B1 (fr) * 1988-10-27 1991-01-25 Essilor Int Procede pour le formage d'une lentille ophtalmique a partir d'un palet en matiere synthetique
US5141678A (en) * 1990-10-10 1992-08-25 Blum Ronald D Method for forming disposable molds for producing optical quality lenses
GB9125480D0 (en) * 1991-11-29 1992-01-29 Pilkington Visioncare Holdings Polymeric bifocal lens production process
US5470892A (en) * 1992-05-01 1995-11-28 Innotech, Inc. Polymerizable resin for forming clear, hard plastics
US5288221A (en) * 1992-05-18 1994-02-22 Essilor Of America, Inc. Apparatus for making ophthalmic lenses
US5316702A (en) * 1992-07-20 1994-05-31 Innotech, Inc. Method of producing durable bonds between an optical preform and an optical resin layer cast on the preform surface
US5480600A (en) * 1993-03-24 1996-01-02 Innotech, Inc. Method for manufacturing thin progressive addition lenses
JPH09506560A (ja) * 1993-12-10 1997-06-30 イノテック・インコーポレーテッド ホトクロミックレンズの製造方法および装置
US5531940A (en) * 1993-12-10 1996-07-02 Innotech, Inc. Method for manufacturing photochromic lenses
JPH08216271A (ja) * 1995-02-10 1996-08-27 Kureha Chem Ind Co Ltd 合成樹脂製調光レンズの製造方法
US5789015A (en) * 1996-06-26 1998-08-04 Innotech, Inc. Impregnation of plastic substrates with photochromic additives
US5793465A (en) * 1996-10-08 1998-08-11 Innotech, Inc. Toric surfacecasting
US5914174A (en) * 1996-12-05 1999-06-22 Innotech, Inc. Lens or semi-finished blank comprising photochromic resin compositions
JP3710260B2 (ja) * 1997-06-23 2005-10-26 キヤノン株式会社 光学素子、それを保持する保持治具及びその光学素子を用いた撮像装置
US5989462A (en) 1997-07-31 1999-11-23 Q2100, Inc. Method and composition for producing ultraviolent blocking lenses
AR013512A1 (es) 1997-09-24 2000-12-27 Novartis Ag Metodo para fabricar una lente de contacto astigmatica
BR9912404A (pt) * 1998-07-24 2001-04-24 Optical Molding Systems Inc Método e composições para manufaturar artigos fotocromáticos revestidos
US6936197B1 (en) 1998-07-24 2005-08-30 Duane L. Wires Method and compositions for manufacturing coated photochromatic articles
US6416307B1 (en) * 1998-09-25 2002-07-09 Q2100, Inc. Plastic lens systems, compositions, and methods
US6419873B1 (en) * 1999-03-19 2002-07-16 Q2100, Inc. Plastic lens systems, compositions, and methods
FR2793038B1 (fr) 1999-04-29 2002-01-25 Essilor Int Lentille ophtalmique composite et procede d'obtention d'une telle lentille
US6619799B1 (en) 1999-07-02 2003-09-16 E-Vision, Llc Optical lens system with electro-active lens having alterably different focal lengths
US7023594B2 (en) * 2000-06-23 2006-04-04 E-Vision, Llc Electro-optic lens with integrated components
US7775660B2 (en) 1999-07-02 2010-08-17 E-Vision Llc Electro-active ophthalmic lens having an optical power blending region
US6960312B2 (en) * 2000-03-30 2005-11-01 Q2100, Inc. Methods for the production of plastic lenses
US6723260B1 (en) 2000-03-30 2004-04-20 Q2100, Inc. Method for marking a plastic eyeglass lens using a mold assembly holder
US6698708B1 (en) 2000-03-30 2004-03-02 Q2100, Inc. Gasket and mold assembly for producing plastic lenses
US6609793B2 (en) * 2000-05-23 2003-08-26 Pharmacia Groningen Bv Methods of obtaining ophthalmic lenses providing the eye with reduced aberrations
US8020995B2 (en) * 2001-05-23 2011-09-20 Amo Groningen Bv Methods of obtaining ophthalmic lenses providing the eye with reduced aberrations
AUPR276601A0 (en) * 2001-01-31 2001-02-22 Newman, Steve A contact lens for refractive correction and capable of engagement with an eye either inside out or right way out
US7074352B2 (en) * 2001-02-20 2006-07-11 Q2100, Inc. Graphical interface for monitoring usage of components of a lens forming apparatus
US6790024B2 (en) * 2001-02-20 2004-09-14 Q2100, Inc. Apparatus for preparing an eyeglass lens having multiple conveyor systems
US6899831B1 (en) 2001-02-20 2005-05-31 Q2100, Inc. Method of preparing an eyeglass lens by delayed entry of mold assemblies into a curing apparatus
US7052262B2 (en) * 2001-02-20 2006-05-30 Q2100, Inc. System for preparing eyeglasses lens with filling station
US6712331B2 (en) * 2001-02-20 2004-03-30 Q2100, Inc. Holder for mold assemblies with indicia
US6702564B2 (en) * 2001-02-20 2004-03-09 Q2100, Inc. System for preparing an eyeglass lens using colored mold holders
US6612828B2 (en) * 2001-02-20 2003-09-02 Q2100, Inc. Fill system with controller for monitoring use
US6863518B2 (en) * 2001-02-20 2005-03-08 Q2100, Inc. Mold filing apparatus having multiple fill stations
US6758663B2 (en) * 2001-02-20 2004-07-06 Q2100, Inc. System for preparing eyeglass lenses with a high volume curing unit
US7051290B2 (en) 2001-02-20 2006-05-23 Q2100, Inc. Graphical interface for receiving eyeglass prescription information
US7045081B2 (en) * 2001-02-20 2006-05-16 Q2100, Inc. Method of monitoring components of a lens forming apparatus
US6790022B1 (en) 2001-02-20 2004-09-14 Q2100, Inc. Apparatus for preparing an eyeglass lens having a movable lamp mount
US6726463B2 (en) 2001-02-20 2004-04-27 Q2100, Inc. Apparatus for preparing an eyeglass lens having a dual computer system controller
US7139636B2 (en) 2001-02-20 2006-11-21 Q2100, Inc. System for preparing eyeglass lenses with bar code reader
US6962669B2 (en) 2001-02-20 2005-11-08 Q2100, Inc. Computerized controller for an eyeglass lens curing apparatus
US6676398B2 (en) 2001-02-20 2004-01-13 Q2100, Inc. Apparatus for preparing an eyeglass lens having a prescription reader
US7124995B2 (en) 2001-02-20 2006-10-24 Q2100, Inc. Holder for mold assemblies and molds
US6875005B2 (en) 2001-02-20 2005-04-05 Q1200, Inc. Apparatus for preparing an eyeglass lens having a gating device
US6752613B2 (en) 2001-02-20 2004-06-22 Q2100, Inc. Apparatus for preparing an eyeglass lens having a controller for initiation of lens curing
US6655946B2 (en) 2001-02-20 2003-12-02 Q2100, Inc. Apparatus for preparing an eyeglass lens having a controller for conveyor and curing units
US7060208B2 (en) * 2001-02-20 2006-06-13 Q2100, Inc. Method of preparing an eyeglass lens with a controller
US7004740B2 (en) * 2001-02-20 2006-02-28 Q2100, Inc. Apparatus for preparing an eyeglass lens having a heating system
US6840752B2 (en) 2001-02-20 2005-01-11 Q2100, Inc. Apparatus for preparing multiple eyeglass lenses
US7025910B2 (en) * 2001-02-20 2006-04-11 Q2100, Inc Method of entering prescription information
US6676399B1 (en) 2001-02-20 2004-01-13 Q2100, Inc. Apparatus for preparing an eyeglass lens having sensors for tracking mold assemblies
US6893245B2 (en) 2001-02-20 2005-05-17 Q2100, Inc. Apparatus for preparing an eyeglass lens having a computer system controller
US7037449B2 (en) * 2001-02-20 2006-05-02 Q2100, Inc. Method for automatically shutting down a lens forming apparatus
US7011773B2 (en) * 2001-02-20 2006-03-14 Q2100, Inc. Graphical interface to display mold assembly position in a lens forming apparatus
US7083404B2 (en) 2001-02-20 2006-08-01 Q2100, Inc. System for preparing an eyeglass lens using a mold holder
US6709257B2 (en) * 2001-02-20 2004-03-23 Q2100, Inc. Eyeglass lens forming apparatus with sensor
SE0101702D0 (sv) * 2001-05-15 2001-05-15 Ardenia Investments Ltd Novel potentiating compounds
US6488374B1 (en) 2002-02-12 2002-12-03 Davida Charlene Alberts Eyeglasses and method of making same for the treatment of low-vision
US6872335B2 (en) * 2002-03-12 2005-03-29 Technology Resource International Corporation Method and apparatus for holding a mold assembly and molding an optical lens using the same
US20080106633A1 (en) * 2002-03-13 2008-05-08 Blum Ronald D Electro-optic lens with integrated components for varying refractive properties
US7044429B1 (en) * 2002-03-15 2006-05-16 Q2100, Inc. Methods and systems for coating eyeglass lens molds
FR2850319B1 (fr) * 2003-01-24 2005-03-04 Essilor Int Procede de remplissage d'un moule avec une matiere organique a l'etat liquide en vue du moulage d'un element optique et procede de moulage incluant ce procede de remplissage
FR2850443B1 (fr) * 2003-01-24 2005-03-04 Essilor Int Vanne a pointeau pour le remplissage d'un moule avec une matiere organique a l'etat liquide et procede de moulage d'un element optique au moyen d'une telle vanne
JPWO2004109369A1 (ja) 2003-06-09 2006-07-20 株式会社アサヒオプティカル ２焦点プラスチックレンズ
FR2856005B1 (fr) * 2003-06-11 2007-03-23 Essilor Int Procede et dispositif de moulage d'une lentille optique, en particulier une lentille ophtalmique
US20060065989A1 (en) * 2004-09-29 2006-03-30 Thad Druffel Lens forming systems and methods
US8915588B2 (en) 2004-11-02 2014-12-23 E-Vision Smart Optics, Inc. Eyewear including a heads up display
US9801709B2 (en) 2004-11-02 2017-10-31 E-Vision Smart Optics, Inc. Electro-active intraocular lenses
US8778022B2 (en) 2004-11-02 2014-07-15 E-Vision Smart Optics Inc. Electro-active intraocular lenses
US20060219347A1 (en) * 2005-04-04 2006-10-05 Essilor International Compagnie Generale D'optique Process for transferring coatings onto a surface of a lens substrate with most precise optical quality
US7258437B2 (en) * 2005-09-07 2007-08-21 Transitions Optical, Inc. Photochromic multifocal optical article
JP5088903B2 (ja) * 2006-12-21 2012-12-05 ボシュ・アンド・ロム・インコーポレイテッド 後および前金型部分間のキャビティ内で成形されたレンズを取り外すための装置および方法
AR064985A1 (es) 2007-01-22 2009-05-06 E Vision Llc Lente electroactivo flexible
AU2008218240B2 (en) * 2007-02-23 2014-01-30 E-Vision Smart Optics, Inc. Ophthalmic dynamic aperture
US20080273169A1 (en) * 2007-03-29 2008-11-06 Blum Ronald D Multifocal Lens Having a Progressive Optical Power Region and a Discontinuity
US7883207B2 (en) * 2007-12-14 2011-02-08 Pixeloptics, Inc. Refractive-diffractive multifocal lens
US20090091818A1 (en) * 2007-10-05 2009-04-09 Haddock Joshua N Electro-active insert
US7883206B2 (en) * 2007-03-07 2011-02-08 Pixeloptics, Inc. Multifocal lens having a progressive optical power region and a discontinuity
EP2168746B1 (fr) 2007-06-14 2018-04-18 Aji Co., Ltd. Procédé et appareil de formage de lentilles non-sphériques
US7926941B2 (en) * 2007-12-14 2011-04-19 Pixeloptics Inc. Multiple layer multifocal composite lens
US7744215B2 (en) * 2007-12-25 2010-06-29 Pixeloptics, Inc. Multiple layer multifocal composite lens
BRPI0908992A2 (pt) 2008-03-18 2015-11-24 Pixeloptics Inc dispositivo ótico eletro-ativo avançado
US8154804B2 (en) * 2008-03-25 2012-04-10 E-Vision Smart Optics, Inc. Electro-optic lenses for correction of higher order aberrations
KR102276220B1 (ko) 2012-01-06 2021-07-13 이-비전 스마트 옵틱스, 아이엔씨. 안경류 도킹 스테이션 및 전자 모듈
WO2014005020A1 (fr) * 2012-06-29 2014-01-03 Johnson & Johnson Vision Care, Inc. Précurseur de lentille avec éléments pour la fabrication d'une lentille ophtalmique
WO2015077181A1 (fr) 2013-11-20 2015-05-28 Transitions Optical, Inc. Procédé de revêtement de lentille, et support de lentille
CN106030378A (zh) * 2014-03-18 2016-10-12 埃西勒国际通用光学公司 用于制造配备有插入件的眼科镜片的模具和方法
US10444537B2 (en) 2015-01-22 2019-10-15 Transitions Optical, Inc. Optical article having a photoluminescent mark
ES2861520T3 (es) 2016-04-12 2021-10-06 E Vision Smart Optics Inc Lentes electroactivas con puentes resistivos elevados
US10599006B2 (en) 2016-04-12 2020-03-24 E-Vision Smart Optics, Inc. Electro-active lenses with raised resistive bridges
DE102018111368B3 (de) * 2018-05-14 2019-04-25 Carl Mahr Holding Gmbh Werkstückhalter, Messvorrichtung und Messverfahren zum Messen eines Werkstücks

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2304217A (en) * 1938-01-20 1942-12-08 American Optical Corp Method and apparatus for making lenses
US2360641A (en) * 1940-08-14 1944-10-17 American Optical Corp Lens and process of making same
US2339433A (en) * 1940-12-07 1944-01-18 Eastman Kodak Co Method of forming optical surfaces on plastic material
US2728106A (en) * 1950-09-08 1955-12-27 American Optical Corp Means for producing optical elements
US2890486A (en) * 1955-08-29 1959-06-16 American Optical Corp Mold for producing lens of any shape from a polymerizable material
GB796825A (en) * 1955-10-04 1958-06-18 American Optical Corp Improvements in or relating to casting devices for optical elements
FR1136887A (fr) * 1955-10-06 1957-05-21 American Optical Corp Procédé et dispositif pour la fabrication d'éléments optiques et notamment de lentilles
GB858218A (en) * 1957-03-22 1961-01-11 John Johnson Method and apparatus for manufacturing optical elements from moulded polymer materials
GB846669A (en) * 1959-03-11 1960-08-31 American Optical Corp Improvements in devices and methods of forming optical elements
US3248460A (en) * 1963-02-28 1966-04-26 Bausch & Lomb Method of making lenses
US3422168A (en) * 1964-12-01 1969-01-14 Ppg Industries Inc Process of casting resinous lenses in thermoplastic cast replica molds
US3423488A (en) * 1966-05-11 1969-01-21 Ppg Industries Inc Process for casting resinous lenses in thermoplastic cast replica molds
US3460928A (en) * 1967-06-09 1969-08-12 American Optical Corp Method of making lens molds
US3528135A (en) * 1968-02-19 1970-09-15 Armorlite Lens Co Inc Gasket for molding plastic optical elements
DE1930291A1 (de) * 1969-06-14 1970-12-17 Rodenstock Optik G Verfahren zur Herstellung optischer Elemente aus Kunststoff
US3555611A (en) * 1969-12-15 1971-01-19 Armorlite Lens Co Inc Mold for casting optical elements and the like
US3946982A (en) * 1974-09-03 1976-03-30 Textron, Inc. Adjustable mold for direct casting of plastic multifocal lenses

Also Published As

Publication number Publication date
IT1108328B (it) 1985-12-09
SE7802719L (sv) 1978-09-11
IL54079A0 (en) 1978-04-30
DK105278A (da) 1978-09-11
IE780488L (en) 1978-09-10
FI780749A7 (fi) 1978-09-11
NL7802485A (nl) 1978-09-12
IL54079A (en) 1981-03-31
PT67745A (en) 1978-04-01
IE46344B1 (en) 1983-05-04
FR2383002B1 (fr) 1983-02-25
ES467649A1 (es) 1979-09-01
IT7867493A0 (it) 1978-03-08
JPS53124570A (en) 1978-10-31
NO780731L (no) 1978-09-12
CA1098268A (fr) 1981-03-31
DE2809610A1 (de) 1978-09-14
CH625458A5 (en) 1981-09-30
ES476080A1 (es) 1979-08-16
US4190621A (en) 1980-02-26
GB1601327A (en) 1981-10-28
FR2383002A1 (fr) 1978-10-06

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GRESHES MARTIN

Effective date: 19850308