JPS6472930A - Production of optical element - Google Patents

Production of optical element

Info

Publication number
JPS6472930A
JPS6472930A JP22671387A JP22671387A JPS6472930A JP S6472930 A JPS6472930 A JP S6472930A JP 22671387 A JP22671387 A JP 22671387A JP 22671387 A JP22671387 A JP 22671387A JP S6472930 A JPS6472930 A JP S6472930A
Authority
JP
Japan
Prior art keywords
molded
mold
production
optical element
adhesion
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
JP22671387A
Other languages
Japanese (ja)
Other versions
JPH0822756B2 (en
Inventor
Fumitaka Yoshimura
Masaki Omori
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP22671387A priority Critical patent/JPH0822756B2/en
Publication of JPS6472930A publication Critical patent/JPS6472930A/en
Publication of JPH0822756B2 publication Critical patent/JPH0822756B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/02—Press-mould materials
    • C03B2215/03—Press-mould materials defined by material properties or parameters, e.g. relative CTE of mould parts

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

Abstract

PURPOSE:To increase mass productivity as well as to prevent the deformation of a molded product due to the difference in shrinkage between a mold and a viscous material to be molded during cooling, by using a material having adhesion to the material to be molded as the material of the mold. CONSTITUTION:A material having adhesion to a viscous material to be molded is used as the material of a mold. The material to be molded is charged into the mold, press-molded and cooled to a temp. corresponding to the glass transition point of the material to be molded. During the cooling, the surface of the material to be molded is kept in contact with the molding surface of the mold.
JP22671387A 1987-09-11 1987-09-11 Method for manufacturing glass optical element Expired - Fee Related JPH0822756B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22671387A JPH0822756B2 (en) 1987-09-11 1987-09-11 Method for manufacturing glass optical element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22671387A JPH0822756B2 (en) 1987-09-11 1987-09-11 Method for manufacturing glass optical element

Publications (2)

Publication Number Publication Date
JPS6472930A true JPS6472930A (en) 1989-03-17
JPH0822756B2 JPH0822756B2 (en) 1996-03-06

Family

ID=16849469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22671387A Expired - Fee Related JPH0822756B2 (en) 1987-09-11 1987-09-11 Method for manufacturing glass optical element

Country Status (1)

Country Link
JP (1) JPH0822756B2 (en)

Also Published As

Publication number Publication date
JPH0822756B2 (en) 1996-03-06

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees