CA2574431C - Methode de production de lentilles de contact multifocales utilisant un insert de moulage - Google Patents

Methode de production de lentilles de contact multifocales utilisant un insert de moulage Download PDF

Info

Publication number: CA2574431C
Authority: CA; Canada
Prior art keywords: mold; insert; mold half; molding; power
Prior art date: 1995-09-29
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 - Lifetime

Application number

CA002574431A

Other languages

English (en)

Other versions

CA2574431A1 (fr

Inventor

Wallace Anthony Martin

Edgar V. Menezes

Victor Lust

Robert B. Phillips

Jongliang Wu

Kornelis Renkema

Wybren Van Der Meulen

Gerbrand Eshuis

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.)

Johnson and Johnson Vision Care Inc

Original Assignee

Johnson and Johnson Vision Care 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.)

1995-09-29

Filing date

1996-09-26

Publication date

2008-08-19

1995-09-29 Priority claimed from US08/536,930 external-priority patent/US5702735A/en

1996-09-26 Application filed by Johnson and Johnson Vision Care Inc filed Critical Johnson and Johnson Vision Care Inc

1997-03-30 Publication of CA2574431A1 publication Critical patent/CA2574431A1/fr

2008-08-19 Application granted granted Critical

2008-08-19 Publication of CA2574431C publication Critical patent/CA2574431C/fr

2016-09-26 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
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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
- B29D11/0048—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
- B29D11/00009—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
- B29D11/00038—Production of contact lenses

Landscapes

Engineering & Computer Science (AREA)
Health & Medical Sciences (AREA)
Manufacturing & Machinery (AREA)
Ophthalmology & Optometry (AREA)
Mechanical Engineering (AREA)
Moulds For Moulding Plastics Or The Like (AREA)

CA002574431A 1995-09-29 1996-09-26 Methode de production de lentilles de contact multifocales utilisant un insert de moulage Expired - Lifetime CA2574431C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US08/536,930 US5702735A (en)	1994-06-10	1995-09-29	Molding arrangement to achieve short mold cycle time
US08/536,930		1995-09-29
CA002186571A CA2186571A1 (fr)	1995-09-29	1996-09-26	Moule permettant de reduire la duree du cycle de moulage

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002186571A Division CA2186571A1 (fr)	1995-09-29	1996-09-26	Moule permettant de reduire la duree du cycle de moulage

Publications (2)

Publication Number	Publication Date
CA2574431A1 CA2574431A1 (fr)	1997-03-30
CA2574431C true CA2574431C (fr)	2008-08-19

Family

ID=37872033

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002574431A Expired - Lifetime CA2574431C (fr)	1995-09-29	1996-09-26	Methode de production de lentilles de contact multifocales utilisant un insert de moulage

Country Status (1)

Country	Link
CA (1)	CA2574431C (fr)

1996
- 1996-09-26 CA CA002574431A patent/CA2574431C/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
CA2574431A1 (fr)	1997-03-30

Legal Events

Date	Code	Title	Description
2007-01-31	EEER	Examination request

Publication	Publication Date	Title
US5702735A (en)	1997-12-30	Molding arrangement to achieve short mold cycle time
CA2233556C (fr)	2007-06-26	Methode de fabrication de lentilles de contact souple a caracteristiques optiques complexes
US5545366A (en)	1996-08-13	Molding arrangement to achieve short mold cycle time and method of molding
EP0686486B1 (fr)	2001-10-31	Demi-moules et dispositif de moulage pour la fabrication de lentilles de contact
US5951934A (en)	1999-09-14	Method of making plastic molds
AU2002332720B2 (en)	2008-03-20	Method and mold for making ophthalmic devices
CN101094755A (zh)	2007-12-26	用于快速更换工具的非光学多件式型芯组件
CA2574431C (fr)	2008-08-19	Methode de production de lentilles de contact multifocales utilisant un insert de moulage
AU718165B2 (en)	2000-04-06	Molding arrangement to achieve short mold cycle time
US8540907B2 (en)	2013-09-24	Methods for producing ophthalmic lens molds and molded ophthalmic lenses
CA2540100C (fr)	2008-07-29	Moule permettant d'obtenir un cycle de moulage court
AU716599B2 (en)	2000-03-02	Molding arrangement to achieve short mold cycle time
CN101378878B (zh)	2012-02-29	制造用于制造隐形眼镜的半模的方法
JPS5849219A (ja)	1983-03-23	プラスチツクレンズの製造方法