CA1021981A - Phototropic glass for multifocal spectacle-glasses - Google Patents

Phototropic glass for multifocal spectacle-glasses

Info

Publication number
CA1021981A
CA1021981A CA182,885A CA182885A CA1021981A CA 1021981 A CA1021981 A CA 1021981A CA 182885 A CA182885 A CA 182885A CA 1021981 A CA1021981 A CA 1021981A
Authority
CA
Canada
Prior art keywords
glasses
multifocal spectacle
phototropic glass
phototropic
glass
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
CA182,885A
Other versions
CA182885S (en
Inventor
Georg Gliemeroth
Marga Faulstich
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
Original Assignee
Jenaer Glaswerk Schott and Gen
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 filed Critical Jenaer Glaswerk Schott and Gen
Application granted granted Critical
Publication of CA1021981A publication Critical patent/CA1021981A/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
CA182,885A 1973-08-20 1973-10-09 Phototropic glass for multifocal spectacle-glasses Expired CA1021981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732341929 DE2341929C3 (en) 1973-08-20 1973-08-20 Phototropic, chemically hardenable distance lens based on silicoborate, suitable for fusing with photochromic near lens for bifocal lenses

Publications (1)

Publication Number Publication Date
CA1021981A true CA1021981A (en) 1977-12-06

Family

ID=5890170

Family Applications (1)

Application Number Title Priority Date Filing Date
CA182,885A Expired CA1021981A (en) 1973-08-20 1973-10-09 Phototropic glass for multifocal spectacle-glasses

Country Status (8)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2346296A1 (en) * 1976-03-31 1977-10-28 Corning Glass Works Multifocal glass lens mfr. - using photochromic glass fused to another glass and heat treated
JPS61266326A (en) * 1985-05-20 1986-11-26 Yoshihiro Abe Photosensitive glass and opal glass composition
US4841119A (en) * 1986-12-19 1989-06-20 N.V. Bekaert S.A. Welding wire
CN110093602B (en) * 2019-05-21 2020-10-13 哈尔滨工业大学 Method for preparing silver nanowire array by utilizing capillary wetting action
CN111662008B (en) * 2020-06-30 2022-04-15 成都光明光电股份有限公司 Glass composition and method for producing same
CN115304283B (en) * 2022-01-24 2023-05-16 苏州东辉光学有限公司 C-Lens glass, blank preparation method and wire drawing machine

Family Cites Families (1)

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

Also Published As

Publication number Publication date
DE2341929B2 (en) 1977-12-01
JPS5045813A (en) 1975-04-24
DE2341929C3 (en) 1978-07-20
GB1460984A (en) 1977-01-06
AT337922B (en) 1977-07-25
DD107658A5 (en) 1974-08-12
FR2241506A1 (en) 1975-03-21
ATA915373A (en) 1976-11-15
FR2241506B1 (en) 1977-10-28
IT1000653B (en) 1976-04-10
DE2341929A1 (en) 1975-04-24
JPS5413245B2 (en) 1979-05-29

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