JPS56135031A - Assembly of mold for formation of plastic lens - Google Patents

Assembly of mold for formation of plastic lens

Info

Publication number
JPS56135031A
JPS56135031A JP3692880A JP3692880A JPS56135031A JP S56135031 A JPS56135031 A JP S56135031A JP 3692880 A JP3692880 A JP 3692880A JP 3692880 A JP3692880 A JP 3692880A JP S56135031 A JPS56135031 A JP S56135031A
Authority
JP
Japan
Prior art keywords
molds
spacer
mold
assembly
positioning
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.)
Granted
Application number
JP3692880A
Other languages
Japanese (ja)
Other versions
JPS6029333B2 (en
Inventor
Naonori Hayashi
Mamoru Koda
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.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP3692880A priority Critical patent/JPS6029333B2/en
Publication of JPS56135031A publication Critical patent/JPS56135031A/en
Publication of JPS6029333B2 publication Critical patent/JPS6029333B2/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
    • 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
    • B29C33/0038—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
    • 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
    • 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

Landscapes

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

Abstract

PURPOSE:To exactly assemble two molds by a method in which a positioning spacer is put between two molds facing each other, positioning is made, and then the spacer is removed from the two molds. CONSTITUTION:The positioning of molds is made at the inside face other than the convexity 15 of a spacer 14, the optical face 16 of a mold 12, and the face touched by the convexity 15 of spacer 14. Then, a tape 10 is closely applied around two molds 12 and 13 and then a plastic raw material is filled into the cavity of the molds while holding the molds assembly by holders 1 and 2, for example. The tape used is made of plastics, rubbers, papers, etc., and the molds used are made of glass preferably. The plastic raw material used is most preferably diethyleneglycol bis (allyl carbonate).
JP3692880A 1980-03-25 1980-03-25 How to assemble a mold for plastic lens molding Expired JPS6029333B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3692880A JPS6029333B2 (en) 1980-03-25 1980-03-25 How to assemble a mold for plastic lens molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3692880A JPS6029333B2 (en) 1980-03-25 1980-03-25 How to assemble a mold for plastic lens molding

Publications (2)

Publication Number Publication Date
JPS56135031A true JPS56135031A (en) 1981-10-22
JPS6029333B2 JPS6029333B2 (en) 1985-07-10

Family

ID=12483410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3692880A Expired JPS6029333B2 (en) 1980-03-25 1980-03-25 How to assemble a mold for plastic lens molding

Country Status (1)

Country Link
JP (1) JPS6029333B2 (en)

Also Published As

Publication number Publication date
JPS6029333B2 (en) 1985-07-10

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