JPH0254208B2 - - Google Patents

Info

Publication number
JPH0254208B2
JPH0254208B2 JP56071048A JP7104881A JPH0254208B2 JP H0254208 B2 JPH0254208 B2 JP H0254208B2 JP 56071048 A JP56071048 A JP 56071048A JP 7104881 A JP7104881 A JP 7104881A JP H0254208 B2 JPH0254208 B2 JP H0254208B2
Authority
JP
Japan
Prior art keywords
lens
plastic
screen frame
injection gate
mounting frame
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 - Lifetime
Application number
JP56071048A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57187223A (en
Inventor
Kyokazu Shibusawa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP7104881A priority Critical patent/JPS57187223A/ja
Publication of JPS57187223A publication Critical patent/JPS57187223A/ja
Publication of JPH0254208B2 publication Critical patent/JPH0254208B2/ja
Granted 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

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)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP7104881A 1981-05-12 1981-05-12 Plastic lens Granted JPS57187223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7104881A JPS57187223A (en) 1981-05-12 1981-05-12 Plastic lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7104881A JPS57187223A (en) 1981-05-12 1981-05-12 Plastic lens

Publications (2)

Publication Number Publication Date
JPS57187223A JPS57187223A (en) 1982-11-17
JPH0254208B2 true JPH0254208B2 (zh) 1990-11-21

Family

ID=13449242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7104881A Granted JPS57187223A (en) 1981-05-12 1981-05-12 Plastic lens

Country Status (1)

Country Link
JP (1) JPS57187223A (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664854A (en) * 1986-01-06 1987-05-12 Neolens, Inc. Injection molding equipment and method
JPH0868910A (ja) 1994-08-29 1996-03-12 Enplas Corp 面光源装置用導光板及びその製造方法
JP2002200647A (ja) * 2000-12-28 2002-07-16 Sony Corp 光学素子、光学素子用金型及び光学素子製造方法
JP4876366B2 (ja) * 2001-09-28 2012-02-15 コニカミノルタホールディングス株式会社 光学成形品の収納方法、光学成形品の搬送方法及び光学成形品のコーティング方法
JP4502581B2 (ja) * 2003-01-14 2010-07-14 パナソニック株式会社 レンズ系光学装置
JP2005306011A (ja) * 2004-03-25 2005-11-04 Ricoh Co Ltd 記録ディスク成形方法および記録ディスク成形装置ならびに記録ディスク成形型
JP2008273088A (ja) * 2007-05-01 2008-11-13 Shin Etsu Polymer Co Ltd ダイシングフレームの製造方法及びダイシングフレーム
JP5275707B2 (ja) * 2008-07-03 2013-08-28 日立マクセル株式会社 射出成形装置および成形品取出方法
JP5040987B2 (ja) * 2009-12-21 2012-10-03 コニカミノルタホールディングス株式会社 光学成形品の収納方法、光学成形品の搬送方法及び光学成形品のコーティング方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5393850A (en) * 1977-01-25 1978-08-17 Pii Ueebaa Haaman Method and system of ejecting lens and lens blank

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5393850A (en) * 1977-01-25 1978-08-17 Pii Ueebaa Haaman Method and system of ejecting lens and lens blank

Also Published As

Publication number Publication date
JPS57187223A (en) 1982-11-17

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