JPS57207026A - Method of molding plastic lens - Google Patents

Method of molding plastic lens

Info

Publication number
JPS57207026A
JPS57207026A JP9226681A JP9226681A JPS57207026A JP S57207026 A JPS57207026 A JP S57207026A JP 9226681 A JP9226681 A JP 9226681A JP 9226681 A JP9226681 A JP 9226681A JP S57207026 A JPS57207026 A JP S57207026A
Authority
JP
Japan
Prior art keywords
plastic lens
lens
peripheries
resilient plates
resilient
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.)
Pending
Application number
JP9226681A
Other languages
Japanese (ja)
Inventor
Noriaki Takeya
Hideki Asano
Morimichi Unno
Tsuneo Narisawa
Masanori Nemoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9226681A priority Critical patent/JPS57207026A/en
Publication of JPS57207026A publication Critical patent/JPS57207026A/en
Pending 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
    • 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
    • B29C45/26—Moulds
    • B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
    • 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

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)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To mold a lens without set, by enclosing a liquid material for a plastic lens into the interface between opposed surfaces of a plurality of resilient plates whose peripheries are fixed. CONSTITUTION:Resilient plates 11, 12 that have been produced from a resilient material at about resin molding temperatures are placed between hollow pipes 15, 16 with the peripheries 11a, 12a secured by screws 13, 14 to the flanges 15a, 16a at the ends of the pipes 15, 16. Sections 11b, 12b excluding the peripheries 11a, 12a are placed to closed holes 15b, 16b of the hollow pipes 15, 16. With the two resilient plates 11, 12 being in contact with each other, a liquid material for a lens is injected from an injection hole 17 to the interface between them so that the resilient plates 11, 12 are resiliently bent outward thereby a convex plastic lens 18 is formed.
JP9226681A 1981-06-17 1981-06-17 Method of molding plastic lens Pending JPS57207026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9226681A JPS57207026A (en) 1981-06-17 1981-06-17 Method of molding plastic lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9226681A JPS57207026A (en) 1981-06-17 1981-06-17 Method of molding plastic lens

Publications (1)

Publication Number Publication Date
JPS57207026A true JPS57207026A (en) 1982-12-18

Family

ID=14049589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9226681A Pending JPS57207026A (en) 1981-06-17 1981-06-17 Method of molding plastic lens

Country Status (1)

Country Link
JP (1) JPS57207026A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61114232A (en) * 1984-11-09 1986-05-31 Mitsubishi Electric Corp Manufacture of screen for video projector
JP2008546559A (en) * 2005-06-13 2008-12-25 シルバー，ジョシュア，デビッド How to mold a lens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61114232A (en) * 1984-11-09 1986-05-31 Mitsubishi Electric Corp Manufacture of screen for video projector
JP2008546559A (en) * 2005-06-13 2008-12-25 シルバー，ジョシュア，デビッド How to mold a lens
US8398902B2 (en) 2005-06-13 2013-03-19 Joshua David Silver Moulding lenses

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