JPS6433022A - Production of optical element forming die - Google Patents

Production of optical element forming die

Info

Publication number
JPS6433022A
JPS6433022A JP18681687A JP18681687A JPS6433022A JP S6433022 A JPS6433022 A JP S6433022A JP 18681687 A JP18681687 A JP 18681687A JP 18681687 A JP18681687 A JP 18681687A JP S6433022 A JPS6433022 A JP S6433022A
Authority
JP
Japan
Prior art keywords
forming
matrix
die
parting film
forming die
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
JP18681687A
Other languages
Japanese (ja)
Inventor
Mitsuo Goto
Reiki Matsui
Takao Shibazaki
Shigeya Sugata
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP18681687A priority Critical patent/JPS6433022A/en
Publication of JPS6433022A publication Critical patent/JPS6433022A/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
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
    • C03B11/086—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor of coated dies
    • 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
    • C03B2215/08—Coated press-mould dies
    • C03B2215/10—Die base materials
    • C03B2215/12—Ceramics or cermets, e.g. cemented WC, Al2O3 or TiC
    • 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
    • C03B2215/08—Coated press-mould dies
    • C03B2215/14—Die top coat materials, e.g. materials for the glass-contacting layers
    • C03B2215/22—Non-oxide ceramics

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 mass-produce the title high-precision and high-quality die having a desired aspherical shape, etc., by hot-pressing a forming die material consisting of glass on a forming matrix, and transferring the matrix to the material. CONSTITUTION:A lower forming matrix 3 having a parting film 3c of CrN, etc., formed by ion plating, etc., on the forming surface having a desired aspherical shape, etc., of the forming matrix main body 3a made of a WC-Ni based sintered hard alloy, etc., and an upper forming matrix 2 made of the same material and having a parting film 2a on its flat forming surface are inserted into a cylindrical heating ring 1 contg. a heater 1a to form a pressforming die. A forming die material 4 consisting of glass, etc., is arranged between a couple of the upper and lower forming matrices 2 and 3, and heated by the heater 1a to a temp. close to the siftening point of the material 4. The upper forming matrix 2 is pressed on the material 4 at about 50 kg/cm<2> pressure, for example, through a pressing device and kept under such conditions for about one hour, and the material is formed. The formed product is then annealed and taken out, a parting film 5b of MgF, etc., is formed, as required, by vacuum deposition, etc., on the forming surface 5a of the obtained forming main body 5, and the title forming die 5 is obtained.
JP18681687A 1987-07-27 1987-07-27 Production of optical element forming die Pending JPS6433022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18681687A JPS6433022A (en) 1987-07-27 1987-07-27 Production of optical element forming die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18681687A JPS6433022A (en) 1987-07-27 1987-07-27 Production of optical element forming die

Publications (1)

Publication Number Publication Date
JPS6433022A true JPS6433022A (en) 1989-02-02

Family

ID=16195097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18681687A Pending JPS6433022A (en) 1987-07-27 1987-07-27 Production of optical element forming die

Country Status (1)

Country Link
JP (1) JPS6433022A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6119485A (en) * 1997-02-21 2000-09-19 Matsushita Electric Industrial Co., Ltd. Press-molding die, method for manufacturing the same and glass article molded with the same
JP2015113262A (en) * 2013-12-12 2015-06-22 Hoya株式会社 Molding tool for abrasive glass optical element blank, abrasive glass optical element blank, and manufacturing method of optical element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6119485A (en) * 1997-02-21 2000-09-19 Matsushita Electric Industrial Co., Ltd. Press-molding die, method for manufacturing the same and glass article molded with the same
JP2015113262A (en) * 2013-12-12 2015-06-22 Hoya株式会社 Molding tool for abrasive glass optical element blank, abrasive glass optical element blank, and manufacturing method of optical element

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