GB1460984A - Glass for multifocal spectacle glasses - Google Patents

Glass for multifocal spectacle glasses

Info

Publication number
GB1460984A
GB1460984A GB3363374A GB3363374A GB1460984A GB 1460984 A GB1460984 A GB 1460984A GB 3363374 A GB3363374 A GB 3363374A GB 3363374 A GB3363374 A GB 3363374A GB 1460984 A GB1460984 A GB 1460984A
Authority
GB
United Kingdom
Prior art keywords
glass
near portion
multifocal
phototropic
refractive index
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
GB3363374A
Other languages
English (en)
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.)
Schott AG
Carl Zeiss AG
Original Assignee
Jenaer Glaswerk Schott and Gen
Carl Zeiss AG
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 Jenaer Glaswerk Schott and Gen, Carl Zeiss AG filed Critical Jenaer Glaswerk Schott and Gen
Publication of GB1460984A publication Critical patent/GB1460984A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/04—Compositions for glass with special properties for photosensitive glass
    • C03C4/06—Compositions for glass with special properties for photosensitive glass for phototropic or photochromic glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Eyeglasses (AREA)
GB3363374A 1973-08-20 1974-07-30 Glass for multifocal spectacle glasses Expired GB1460984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732341929 DE2341929C3 (de) 1973-08-20 1973-08-20 Phototropes, chemisch härtbares Fernteil-Glas auf Silicoborat-Basis, geeignet zur Verschmelzung mit phototropen Nahteilgläsern für Bifokalbrillengläser

Publications (1)

Publication Number Publication Date
GB1460984A true GB1460984A (en) 1977-01-06

Family

ID=5890170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3363374A Expired GB1460984A (en) 1973-08-20 1974-07-30 Glass for multifocal spectacle glasses

Country Status (8)

Country Link
JP (1) JPS5413245B2 (enExample)
AT (1) AT337922B (enExample)
CA (1) CA1021981A (enExample)
DD (1) DD107658A5 (enExample)
DE (1) DE2341929C3 (enExample)
FR (1) FR2241506B1 (enExample)
GB (1) GB1460984A (enExample)
IT (1) IT1000653B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175298A (en) * 1985-05-20 1986-11-26 Central Glass Co Ltd Glass useful as either photosensitive glass or opaline foam glass
US4841119A (en) * 1986-12-19 1989-06-20 N.V. Bekaert S.A. Welding wire
CN111662008A (zh) * 2020-06-30 2020-09-15 成都光明光电股份有限公司 玻璃组合物及其制造方法
CN115304283A (zh) * 2022-01-24 2022-11-08 苏州东辉光学有限公司 一种C-Lens玻璃、毛坯制备方法、拉丝炉及拉丝机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2346296A1 (fr) * 1976-03-31 1977-10-28 Corning Glass Works Procede pour la fabrication de lentilles ophtalmiques photochromiques multifocales
CN110093602B (zh) * 2019-05-21 2020-10-13 哈尔滨工业大学 一种利用毛细润湿作用制备银纳米线阵列的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2112376B1 (enExample) * 1970-11-02 1976-04-30 Jenaer Glaswerk Schott & Gen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175298A (en) * 1985-05-20 1986-11-26 Central Glass Co Ltd Glass useful as either photosensitive glass or opaline foam glass
US4841119A (en) * 1986-12-19 1989-06-20 N.V. Bekaert S.A. Welding wire
CN111662008A (zh) * 2020-06-30 2020-09-15 成都光明光电股份有限公司 玻璃组合物及其制造方法
CN115304283A (zh) * 2022-01-24 2022-11-08 苏州东辉光学有限公司 一种C-Lens玻璃、毛坯制备方法、拉丝炉及拉丝机

Also Published As

Publication number Publication date
DE2341929C3 (de) 1978-07-20
ATA915373A (de) 1976-11-15
DE2341929B2 (de) 1977-12-01
FR2241506A1 (enExample) 1975-03-21
DE2341929A1 (de) 1975-04-24
FR2241506B1 (enExample) 1977-10-28
JPS5045813A (enExample) 1975-04-24
AT337922B (de) 1977-07-25
IT1000653B (it) 1976-04-10
CA1021981A (en) 1977-12-06
DD107658A5 (enExample) 1974-08-12
JPS5413245B2 (enExample) 1979-05-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee