FR2628031B1 - METHODS AND APPARATUS FOR MANUFACTURING CAST OR MOLDED OBJECTS, IN PARTICULAR CORRECTIVE GLASSES - Google Patents

METHODS AND APPARATUS FOR MANUFACTURING CAST OR MOLDED OBJECTS, IN PARTICULAR CORRECTIVE GLASSES

Info

Publication number
FR2628031B1
FR2628031B1 FR8902721A FR8902721A FR2628031B1 FR 2628031 B1 FR2628031 B1 FR 2628031B1 FR 8902721 A FR8902721 A FR 8902721A FR 8902721 A FR8902721 A FR 8902721A FR 2628031 B1 FR2628031 B1 FR 2628031B1
Authority
FR
France
Prior art keywords
methods
molded objects
manufacturing cast
corrective glasses
particular corrective
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
FR8902721A
Other languages
French (fr)
Other versions
FR2628031A1 (en
Inventor
Jeffrey M Kingsbury
David P Spector
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.)
Pilkington Visioncare Holdings Inc
Original Assignee
Pilkington Visioncare Holdings 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
Priority claimed from US07/163,308 external-priority patent/US4839110A/en
Priority claimed from US07/163,771 external-priority patent/US4874561A/en
Application filed by Pilkington Visioncare Holdings Inc filed Critical Pilkington Visioncare Holdings Inc
Publication of FR2628031A1 publication Critical patent/FR2628031A1/en
Application granted granted Critical
Publication of FR2628031B1 publication Critical patent/FR2628031B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B29D11/0048—Moulds for lenses
    • B29D11/00528—Consisting of two mould halves joined by an annular gasket
    • 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
    • B29C33/0055—Moulds or cores; Details thereof or accessories therefor with incorporated overflow cavities
    • 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
    • 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
    • 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
    • B29C43/34—Feeding the material to the mould or the compression means
    • 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
    • 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
    • B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
FR8902721A 1988-03-02 1989-03-02 METHODS AND APPARATUS FOR MANUFACTURING CAST OR MOLDED OBJECTS, IN PARTICULAR CORRECTIVE GLASSES Expired - Fee Related FR2628031B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/163,308 US4839110A (en) 1988-03-02 1988-03-02 Method of molding using gated dies
US07/163,771 US4874561A (en) 1988-03-03 1988-03-03 Method for designing parametric molding apparatus

Publications (2)

Publication Number Publication Date
FR2628031A1 FR2628031A1 (en) 1989-09-08
FR2628031B1 true FR2628031B1 (en) 1995-05-19

Family

ID=26859528

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8902721A Expired - Fee Related FR2628031B1 (en) 1988-03-02 1989-03-02 METHODS AND APPARATUS FOR MANUFACTURING CAST OR MOLDED OBJECTS, IN PARTICULAR CORRECTIVE GLASSES

Country Status (8)

Country Link
JP (1) JPH01316226A (en)
AU (1) AU3089989A (en)
DE (1) DE3906564A1 (en)
FR (1) FR2628031B1 (en)
GB (2) GB2219241A (en)
IT (1) IT1232661B (en)
LU (1) LU87465A1 (en)
NL (1) NL8900499A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160749A (en) * 1990-10-30 1992-11-03 Minnesota Mining And Manufacturing Company Three piece mold assembly for making an ocular device
JP2545311Y2 (en) * 1990-10-30 1997-08-25 ミネソタ マイニング アンド マニュファクチャリング カンパニー Mold assembly for ophthalmic device manufacturing
US5137441A (en) * 1990-10-30 1992-08-11 Minnesota Mining And Manufacturing Company Mold assembly for making an ocular lens blank
JPH11114979A (en) * 1997-10-15 1999-04-27 Menicon Co Ltd Molding machine for eye lens material and method for molding using it
FR2790706B1 (en) * 1999-03-08 2001-06-08 Essilor Int THREE-PART MOLD FOR THE MANUFACTURE OF EYE ARTICLES OF TRANSPARENT POLYMERIC MATERIAL
JP2003512949A (en) 1999-11-04 2003-04-08 コンセプションライセンス アクチェンゲゼルシャフト Optical lens manufacturing equipment of polymerizable material
DE10048861A1 (en) * 2000-10-02 2002-04-25 Krauss Maffei Kunststofftech Thick-walled plastic lens molding method, involves molding a thin walled component and increasing cavity size during continued injection to produce a thick walled component
DE102007037204B4 (en) 2007-08-07 2020-11-12 Docter Optics Se Method for producing an optical lens element, in particular a headlight lens for a motor vehicle headlight and batch of headlight lenses produced one behind the other
JP5788231B2 (en) * 2011-06-10 2015-09-30 Hoya株式会社 Lens manufacturing method and spectacle lens manufacturing system

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB650692A (en) * 1944-11-28 1951-02-28 Teksun Inc Injection mold for use in molding opthalmic lenses and other articles
GB611432A (en) * 1946-04-26 1948-10-29 James Mitchell Anderson A new or improved means for moulding ophthalmic contact lenses from plastics
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
GB915523A (en) * 1959-01-28 1963-01-16 Combined Optical Ind Ltd Improvements in or relating to casting
FR1362588A (en) * 1963-04-23 1964-06-05 Morvan Soc Improvement in heat treatment, more especially in vulcanization, insitu, of elastic masses and in particular of seals
US3423488A (en) * 1966-05-11 1969-01-21 Ppg Industries Inc Process for casting resinous lenses in thermoplastic cast replica molds
US3605195A (en) * 1970-08-24 1971-09-20 Charles D Campbell Mold assembly for casting plastic optical lenses
GB1366927A (en) * 1970-12-14 1974-09-18 Goodyear Tire & Rubber Method of moulding plastics materials under pressure
IL39580A (en) * 1971-06-04 1975-03-13 Ashland Optical Corp Multiple molding of plastic optical lenses
DE2308144A1 (en) * 1973-02-19 1974-08-22 Battelle Institut E V Inhomogeneously constructed contact lens - incorporating a pharmaceutically active ingredient
US3881683A (en) * 1973-11-29 1975-05-06 American Optical Corp Gasket for lens mold
JPS5225651A (en) * 1975-08-22 1977-02-25 Olympus Optical Co Ltd Process for fabricating an optical curved surface using a photopolymer izable adhesive
US4208364A (en) * 1976-03-24 1980-06-17 Shepherd Thomas H Process for the production of contact lenses
AT368067B (en) * 1977-01-21 1982-09-10 Weber Hermann P METHOD AND DEVICE FOR PRODUCING AN OPTICAL LENS BY INJECTION MOLDING
GB2088273A (en) * 1980-12-03 1982-06-09 Philips Electronic Associated Method of making biaspherical optical elements
US4353849A (en) * 1981-06-19 1982-10-12 Lawrence Lewison Manufacture of soft contact lenses having vent passageways
FR2530181A1 (en) * 1982-07-16 1984-01-20 Essilor Int METHOD AND DEVICE FOR MOLDING AN OPTICAL MEMBER IN SYNTHETIC MATERIAL
FR2530182A1 (en) * 1982-07-16 1984-01-20 Essilor Int MOLDING DEVICE, IN PARTICULAR FOR OPTICAL ELEMENT, FOR EXAMPLE OPHTHALMIC LENS

Also Published As

Publication number Publication date
GB2219241A (en) 1989-12-06
LU87465A1 (en) 1989-08-30
AU3089989A (en) 1989-09-07
GB2219243A (en) 1989-12-06
GB8904653D0 (en) 1989-04-12
NL8900499A (en) 1989-10-02
DE3906564A1 (en) 1989-10-12
FR2628031A1 (en) 1989-09-08
IT8947700A0 (en) 1989-03-01
IT1232661B (en) 1992-03-02
JPH01316226A (en) 1989-12-21
GB8915053D0 (en) 1989-08-23

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
ST Notification of lapse