GB182419A - Method of and apparatus for casting ophthalmic lenses - Google Patents

Method of and apparatus for casting ophthalmic lenses

Info

Publication number
GB182419A
GB182419A GB25609/21A GB2560921A GB182419A GB 182419 A GB182419 A GB 182419A GB 25609/21 A GB25609/21 A GB 25609/21A GB 2560921 A GB2560921 A GB 2560921A GB 182419 A GB182419 A GB 182419A
Authority
GB
United Kingdom
Prior art keywords
ophthalmic lenses
casting ophthalmic
casting
lenses
ophthalmic
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
Application number
GB25609/21A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB182419A publication Critical patent/GB182419A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
    • 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
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/088—Flat discs
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/40—Product characteristics
    • C03B2215/44—Flat, parallel-faced disc or plate products
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/76—Pressing whereby some glass overflows unrestrained beyond the press mould in a direction perpendicular to the press axis
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/80—Simultaneous pressing of multiple products; Multiple parallel moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
GB25609/21A 1921-07-01 1921-09-27 Method of and apparatus for casting ophthalmic lenses Expired GB182419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US182419XA 1921-07-01 1921-07-01

Publications (1)

Publication Number Publication Date
GB182419A true GB182419A (en) 1922-11-23

Family

ID=21786943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25609/21A Expired GB182419A (en) 1921-07-01 1921-09-27 Method of and apparatus for casting ophthalmic lenses

Country Status (1)

Country Link
GB (1) GB182419A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207097A1 (en) * 1972-11-16 1974-06-14 Eastman Kodak Co
EP0536633A1 (en) * 1991-10-09 1993-04-14 Sumitomo Heavy Industries, Ltd Glass forming apparatus and method
CN110683745A (en) * 2019-09-26 2020-01-14 宁波大学 Injection molding preparation device and preparation method of chalcogenide glass micro-lens
US20200339463A1 (en) * 2018-04-17 2020-10-29 Okamoto Glass Co., Ltd. Mold for molding glass-made optical component and method for manufucturing glass-made optical component using mold

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207097A1 (en) * 1972-11-16 1974-06-14 Eastman Kodak Co
EP0536633A1 (en) * 1991-10-09 1993-04-14 Sumitomo Heavy Industries, Ltd Glass forming apparatus and method
US5540746A (en) * 1991-10-09 1996-07-30 Sumitomo Heavy Industries, Ltd. Glass forming apparatus
US20200339463A1 (en) * 2018-04-17 2020-10-29 Okamoto Glass Co., Ltd. Mold for molding glass-made optical component and method for manufucturing glass-made optical component using mold
CN110683745A (en) * 2019-09-26 2020-01-14 宁波大学 Injection molding preparation device and preparation method of chalcogenide glass micro-lens
CN110683745B (en) * 2019-09-26 2022-02-11 宁波大学 Injection molding preparation device and preparation method of chalcogenide glass micro-lens

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