CA1070066A - Apparatus for and method of forming optical lenses - Google Patents

Apparatus for and method of forming optical lenses

Info

Publication number
CA1070066A
CA1070066A CA225,087A CA225087A CA1070066A CA 1070066 A CA1070066 A CA 1070066A CA 225087 A CA225087 A CA 225087A CA 1070066 A CA1070066 A CA 1070066A
Authority
CA
Canada
Prior art keywords
mold
lens
reservoir
members
cavity
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
Application number
CA225,087A
Other languages
English (en)
French (fr)
Inventor
James A. Clark
Donald V. Livesey
Richard J. Wrue
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.)
Bausch and Lomb Inc
Original Assignee
Bausch and Lomb Inc
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 Bausch and Lomb Inc filed Critical Bausch and Lomb Inc
Application granted granted Critical
Publication of CA1070066A publication Critical patent/CA1070066A/en
Expired legal-status Critical Current

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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/303—Mounting, exchanging or centering centering mould parts or halves, e.g. during mounting
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0888—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds
    • B29C35/0894—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds provided with masks or diaphragms
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/005—Compensating volume or shape change during moulding, in general
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/38—Moulds for making articles of definite length, i.e. discrete articles with means to avoid flashes
    • 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
    • B29D11/00057—Production of contact lenses characterised by the shape or surface condition of the edge, e.g. flashless, burrless, smooth
    • 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
    • B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
    • B29D11/00442—Curing the lens material
    • 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
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/76—Office equipment or accessories
    • B29L2031/7602—Maps
CA225,087A 1974-05-06 1975-04-21 Apparatus for and method of forming optical lenses Expired CA1070066A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46693374A 1974-05-06 1974-05-06
US56440375A 1975-04-08 1975-04-08

Publications (1)

Publication Number Publication Date
CA1070066A true CA1070066A (en) 1980-01-22

Family

ID=27041840

Family Applications (1)

Application Number Title Priority Date Filing Date
CA225,087A Expired CA1070066A (en) 1974-05-06 1975-04-21 Apparatus for and method of forming optical lenses

Country Status (7)

Country Link
JP (1) JPS598219B2 (ja)
CA (1) CA1070066A (ja)
DE (1) DE2518905C2 (ja)
FR (1) FR2270082B1 (ja)
GB (1) GB1511901A (ja)
IT (1) IT1032811B (ja)
SE (1) SE418822B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9551814B2 (en) 2009-12-21 2017-01-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method for manufacturing a structure, optical component, optical layer stack

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121896A (en) * 1976-03-24 1978-10-24 Shepherd Thomas H Apparatus for the production of contact lenses
JPS6030529B2 (ja) * 1977-04-28 1985-07-17 日本コンタクトレンズ製造株式会社 シリコン樹脂製コンタクトレンズの製造用成形型
US4155962A (en) * 1977-05-25 1979-05-22 Neefe Optical Laboratory, Inc. Method of removing molded lenses from the mold
US4165158A (en) * 1977-07-25 1979-08-21 American Optical Corporation Cast contact lenses and method for making same
DE2839249A1 (de) * 1977-09-12 1979-03-22 Toray Industries Verfahren zur herstellung einer weichen kontaktlinse und ausgangsloesung zur durchfuehrung des verfahrens
IT1094754B (it) * 1978-05-12 1985-08-02 Italiana Lenti S I L S R L Soc Procedimento per la fabbricazione tramite colata a compensazione continua di lenti o mezzi ottici in resine sintetiche polimerizzabili
US4209289A (en) * 1979-05-14 1980-06-24 American Optical Corporation Contact lens mold
DE2938098C2 (de) * 1979-09-20 1983-02-03 Deutsche Spezialglas Ag, 3223 Delligsen Gießharzmischung zur Herstellung von Kunststoff-Formkörpern mit optischer Oberflächenqualität und ihre Verwendung
FR2477058A1 (fr) * 1980-02-28 1981-09-04 Medicornea Sa Procede de fabrication par moulage de lentilles de contact, et lentilles obtenues
FR2477059A1 (fr) * 1980-02-28 1981-09-04 Medicornea Sa Procede de fabrication par moulage de lentilles de contact et lentilles obtenues
NZ200362A (en) * 1981-04-30 1985-10-11 Mia Lens Prod A method of forming a hydrophilic polymer suitable for use in the manufacture of soft contact lenses and a mould for use in the polymerization
FR2523505A2 (fr) * 1982-03-17 1983-09-23 Medicornea Sa Procede perfectionne pour la fabrication, par moulage, de lentilles de contact et dispositif de mise en oeuvre
JPS6370619U (ja) * 1986-10-29 1988-05-12
US4913857A (en) * 1987-04-03 1990-04-03 Kei Mori Method for molding a transparent capsule
JPH01258916A (ja) * 1988-04-09 1989-10-16 Asahi Optical Co Ltd レンズ成形用注形型
JPH0214718U (ja) * 1988-07-13 1990-01-30
US5573108A (en) * 1988-11-02 1996-11-12 British Technology Group Ltd. Disposable contact lens package
DE68923345T2 (de) * 1988-11-02 1995-12-21 British Tech Group Giessen von Kontaktlinsen.
US5271875A (en) * 1991-09-12 1993-12-21 Bausch & Lomb Incorporated Method for molding lenses
US5254000A (en) * 1992-04-23 1993-10-19 Corning Incorporated Organic polymer lens mold
DE19706846A1 (de) * 1997-02-21 1998-09-03 Bodenseewerk Geraetetech Vorrichtung zur lichtinitiierten chemischen Vernetzung von Material
JPH10315252A (ja) * 1997-05-20 1998-12-02 Menicon Co Ltd レンズブランク成形用型及びコンタクトレンズの製造方法
US6368522B1 (en) * 2000-01-03 2002-04-09 Johnson & Johnson Vision Care, Inc. Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture
DE102009055080B4 (de) * 2009-12-21 2019-11-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zum Herstellen einer Struktur, Abformwerkzeug
JP5558152B2 (ja) * 2010-03-23 2014-07-23 京セラメディカル株式会社 光グラフト重合用レンズおよび製膜装置
SG192187A1 (en) * 2011-02-28 2013-08-30 Coopervision Int Holding Co Lp Phosphine-containing hydrogel contact lenses
GB201302268D0 (en) * 2013-02-08 2013-03-27 Ocutec Ltd Molding Apparatus and Method
CN110341096B (zh) * 2019-07-10 2020-12-25 苏州瑞尔康科技有限公司 一种50％含水量隐形眼镜模压模具及其制作方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB847797A (en) * 1955-12-30 1960-09-14 Combined Optical Ind Ltd Improvements in or relating to the casting of synthetic resins
DE1945321A1 (de) * 1969-09-06 1971-03-11 Zeiss Carl Fa Verfahren zur Herstellung von optischen Elementen aus duroplastischen Kunststoffen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9551814B2 (en) 2009-12-21 2017-01-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method for manufacturing a structure, optical component, optical layer stack

Also Published As

Publication number Publication date
AU8063175A (en) 1976-11-04
DE2518905A1 (de) 1975-11-20
SE7505165L (sv) 1975-11-07
SE418822B (sv) 1981-06-29
GB1511901A (en) 1978-05-24
IT1032811B (it) 1979-06-20
FR2270082B1 (ja) 1977-11-18
FR2270082A1 (ja) 1975-12-05
JPS598219B2 (ja) 1984-02-23
DE2518905C2 (de) 1984-10-04
JPS50151966A (ja) 1975-12-06

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Legal Events

Date Code Title Description
MKEX Expiry