JPH0476932B2 - - Google Patents

Info

Publication number
JPH0476932B2
JPH0476932B2 JP63309930A JP30993088A JPH0476932B2 JP H0476932 B2 JPH0476932 B2 JP H0476932B2 JP 63309930 A JP63309930 A JP 63309930A JP 30993088 A JP30993088 A JP 30993088A JP H0476932 B2 JPH0476932 B2 JP H0476932B2
Authority
JP
Japan
Prior art keywords
mold
molding
glass material
functional surface
relief portion
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
JP63309930A
Other languages
English (en)
Japanese (ja)
Other versions
JPH02157130A (ja
Inventor
Fumitaka Yoshimura
Masaki Oomori
Masayuki Tomita
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 JP30993088A priority Critical patent/JPH02157130A/ja
Publication of JPH02157130A publication Critical patent/JPH02157130A/ja
Publication of JPH0476932B2 publication Critical patent/JPH0476932B2/ja
Granted 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
    • C03B2215/00—Press-moulding glass
    • C03B2215/40—Product characteristics
    • C03B2215/46—Lenses, e.g. bi-convex
    • C03B2215/48—Convex-concave

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)
JP30993088A 1988-12-09 1988-12-09 レンズの成形用型 Granted JPH02157130A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30993088A JPH02157130A (ja) 1988-12-09 1988-12-09 レンズの成形用型

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30993088A JPH02157130A (ja) 1988-12-09 1988-12-09 レンズの成形用型

Publications (2)

Publication Number Publication Date
JPH02157130A JPH02157130A (ja) 1990-06-15
JPH0476932B2 true JPH0476932B2 (en]) 1992-12-07

Family

ID=17999057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30993088A Granted JPH02157130A (ja) 1988-12-09 1988-12-09 レンズの成形用型

Country Status (1)

Country Link
JP (1) JPH02157130A (en])

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3224472B2 (ja) * 1993-05-26 2001-10-29 キヤノン株式会社 光学レンズ及びその成形用型
JP4467671B2 (ja) * 1998-08-24 2010-05-26 キヤノン株式会社 光学素子の成形装置及び成形方法
WO2003009983A1 (en) * 2001-07-25 2003-02-06 Asahi Lite Optical Co., Ltd. Semi-finished resin lens, and method and apparatus for producing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS616139A (ja) * 1984-06-15 1986-01-11 Hoya Corp 軸ずれの少ないレンズをプレス成形する方法
JPS61290012A (ja) * 1985-06-18 1986-12-20 Nippon Contact Lens:Kk レンズ成形装置

Also Published As

Publication number Publication date
JPH02157130A (ja) 1990-06-15

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