JPS6479026A - Lens molding device - Google Patents

Lens molding device

Info

Publication number
JPS6479026A
JPS6479026A JP23651587A JP23651587A JPS6479026A JP S6479026 A JPS6479026 A JP S6479026A JP 23651587 A JP23651587 A JP 23651587A JP 23651587 A JP23651587 A JP 23651587A JP S6479026 A JPS6479026 A JP S6479026A
Authority
JP
Japan
Prior art keywords
die
glass lens
drum
stock
lens stock
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
JP23651587A
Other languages
Japanese (ja)
Inventor
Masaaki Haruhara
Shoji Nakamura
Takahisa Kondo
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP23651587A priority Critical patent/JPS6479026A/en
Publication of JPS6479026A publication Critical patent/JPS6479026A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To mold many kinds of lens stocks into a lens shape with high precision by providing a drum die, a molding die fitting to this drum die and a forceful cooler used for the drum die. CONSTITUTION:A glass lens stock is fed into the through-hole of a drum die 2 and an upper die 5 is successively fitted thereto. Then the drum die, the upper die, a lower die and the glass lens stock are heated until this glass lens stock is reached to a moldable softened state. The glass lens stock is exerted with prescribed force via an upper heater block and the upper die. A heater 9 is cut off when the flange part 5B of the upper die is allowed to abut against the upper face of the drum die 2. The drum die is quickly cooled from the outer peripheral part by using a forceful cooler 12 until a glass lens is reached to transition temp. of the glass lens stock and the rate of shrinkage of the drum die having about 1/2-1/3 expansion coefficient is made large in comparison with the glass lens stock and the glass lens stock is always exerted with pressing force via the upper die.
JP23651587A 1987-09-21 1987-09-21 Lens molding device Pending JPS6479026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23651587A JPS6479026A (en) 1987-09-21 1987-09-21 Lens molding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23651587A JPS6479026A (en) 1987-09-21 1987-09-21 Lens molding device

Publications (1)

Publication Number Publication Date
JPS6479026A true JPS6479026A (en) 1989-03-24

Family

ID=17001847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23651587A Pending JPS6479026A (en) 1987-09-21 1987-09-21 Lens molding device

Country Status (1)

Country Link
JP (1) JPS6479026A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283222A (en) * 1988-09-20 1990-03-23 Olympus Optical Co Ltd Method for cooling forming mold of device for forming optical element
JPH0311030U (en) * 1989-06-12 1991-02-01
WO2009035083A1 (en) * 2007-09-13 2009-03-19 Konica Minolta Opto, Inc. Process for producing glass molded product
WO2018123825A1 (en) * 2016-12-28 2018-07-05 オリンパス株式会社 Optical element forming device and optical element forming method
US10437288B2 (en) 2014-10-06 2019-10-08 Fasetto, Inc. Portable storage device with modular power and housing system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283222A (en) * 1988-09-20 1990-03-23 Olympus Optical Co Ltd Method for cooling forming mold of device for forming optical element
JPH0311030U (en) * 1989-06-12 1991-02-01
WO2009035083A1 (en) * 2007-09-13 2009-03-19 Konica Minolta Opto, Inc. Process for producing glass molded product
US10437288B2 (en) 2014-10-06 2019-10-08 Fasetto, Inc. Portable storage device with modular power and housing system
WO2018123825A1 (en) * 2016-12-28 2018-07-05 オリンパス株式会社 Optical element forming device and optical element forming method

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