BE850729A - Werkwijze en inrichting voor het door spuitgieten vervaardigen van lenzen. - Google Patents

Werkwijze en inrichting voor het door spuitgieten vervaardigen van lenzen.

Info

Publication number
BE850729A
BE850729A BE174362A BE174362A BE850729A BE 850729 A BE850729 A BE 850729A BE 174362 A BE174362 A BE 174362A BE 174362 A BE174362 A BE 174362A BE 850729 A BE850729 A BE 850729A
Authority
BE
Belgium
Prior art keywords
emi
cavity
mold cavity
liquid plastic
plastic
Prior art date
Application number
BE174362A
Other languages
English (en)
Dutch (nl)
Original Assignee
Weber Hermann P
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 Weber Hermann P filed Critical Weber Hermann P
Priority to BE174362A priority Critical patent/BE850729A/fr
Publication of BE850729A publication Critical patent/BE850729A/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
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/563—Enlarging the mould cavity during injection
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
BE174362A 1977-01-25 1977-01-25 Werkwijze en inrichting voor het door spuitgieten vervaardigen van lenzen. BE850729A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE174362A BE850729A (fr) 1977-01-25 1977-01-25 Werkwijze en inrichting voor het door spuitgieten vervaardigen van lenzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE850729 1977-01-25
BE174362A BE850729A (fr) 1977-01-25 1977-01-25 Werkwijze en inrichting voor het door spuitgieten vervaardigen van lenzen.

Publications (1)

Publication Number Publication Date
BE850729A true BE850729A (fr) 1977-05-16

Family

ID=25649825

Family Applications (1)

Application Number Title Priority Date Filing Date
BE174362A BE850729A (fr) 1977-01-25 1977-01-25 Werkwijze en inrichting voor het door spuitgieten vervaardigen van lenzen.

Country Status (1)

Country Link
BE (1) BE850729A (fr)

Similar Documents

Publication Publication Date Title
US4091057A (en) Method for injection molding lenses
EP0144622B1 (fr) Dispositif et procédé de moulage par injection de lentilles
EP0336946B1 (fr) Moulage de composants optiques thermoplastiques
US4184835A (en) Mold apparatus
US4778632A (en) Injection molding equipment and method
JP3264615B2 (ja) プラスチックレンズの射出成形方法
EP1370408B1 (fr) Procede de moulage par injection
KR870010933A (ko) 열가소성 수지의 사출 성형 방법 및 장치
JP3703873B2 (ja) 光学レンズを製造する方法および装置
KR20020011376A (ko) 얇은 열가소성 렌즈 제조를 위한 성형 방법
NL7905618A (nl) Werkwijze en inrichting voor het in een vorm vormen van ooglenzen.
JPS6119409B2 (fr)
EP0955147B1 (fr) Procede de moulage par injection de lentilles plastiques
US4839110A (en) Method of molding using gated dies
EP0377020A1 (fr) Procede et appareil de fabrication de moules optiques jetables
US6390621B1 (en) Manufacturing of positive power ophthalmic lenses
JPH0331124B2 (fr)
BE850729A (fr) Werkwijze en inrichting voor het door spuitgieten vervaardigen van lenzen.
JPH01316226A (ja) 成形・鋳造物品の製造方法と装置
GB1577522A (en) Injection moulding of lenses
JPS61233520A (ja) 成形品の射出成形方法
CA1093769A (fr) Methode et appareil de moulage de lentilles par injection
EP1273424B1 (fr) Procédé de fabrication des lentilles en matière plastique
DE2702412A1 (de) Verfahren und vorrichtung zum spritzgiessen von linsen
AU2002240709B2 (en) Injection molding method

Legal Events

Date Code Title Description
CN Change of patent owner's name

Owner name: *TECHSIGHT CORP.

Effective date: 19840201

RE Patent lapsed

Owner name: TECHSIGHT CORP.

Effective date: 19870131