AT349670B - GLASS AS A SEAM MATERIAL FOR FUSING WITH KNOWN PHOTOTROPIC FOCUS LENSES FOR MULTIFOCAL LENSES - Google Patents

GLASS AS A SEAM MATERIAL FOR FUSING WITH KNOWN PHOTOTROPIC FOCUS LENSES FOR MULTIFOCAL LENSES

Info

Publication number
AT349670B
AT349670B AT94576A AT94576A AT349670B AT 349670 B AT349670 B AT 349670B AT 94576 A AT94576 A AT 94576A AT 94576 A AT94576 A AT 94576A AT 349670 B AT349670 B AT 349670B
Authority
AT
Austria
Prior art keywords
lenses
phototropic
fusing
glass
seam material
Prior art date
Application number
AT94576A
Other languages
German (de)
Other versions
ATA94576A (en
Original Assignee
Jenaer Glaswerk Schott & 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 & Gen filed Critical Jenaer Glaswerk Schott & Gen
Publication of ATA94576A publication Critical patent/ATA94576A/en
Application granted granted Critical
Publication of AT349670B publication Critical patent/AT349670B/en

Links

Classifications

    • 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
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • C03C3/074—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron containing zinc

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Eyeglasses (AREA)
AT94576A 1975-05-07 1976-02-11 GLASS AS A SEAM MATERIAL FOR FUSING WITH KNOWN PHOTOTROPIC FOCUS LENSES FOR MULTIFOCAL LENSES AT349670B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752520260 DE2520260C3 (en) 1975-05-07 1975-05-07 Phototropic glass, suitable as a near-part material for fusing with photochromic far-part glasses, based on an optical glass of the SiO2 -B2 O3 -Al2 O3 -La2 O3 - (ZnO) system

Publications (2)

Publication Number Publication Date
ATA94576A ATA94576A (en) 1978-09-15
AT349670B true AT349670B (en) 1979-04-25

Family

ID=5945941

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94576A AT349670B (en) 1975-05-07 1976-02-11 GLASS AS A SEAM MATERIAL FOR FUSING WITH KNOWN PHOTOTROPIC FOCUS LENSES FOR MULTIFOCAL LENSES

Country Status (6)

Country Link
JP (1) JPS51134708A (en)
AT (1) AT349670B (en)
DE (1) DE2520260C3 (en)
FR (1) FR2333758A2 (en)
GB (1) GB1501820A (en)
IT (1) IT1058047B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211569A (en) * 1979-03-09 1980-07-08 Corning Glass Works High index ophthalmic glasses
DE3032580C2 (en) * 1980-08-29 1984-09-13 Deutsche Spezialglas Ag, 3223 Delligsen Phototropic multilayer glass and process for its manufacture
DE3117000C2 (en) * 1981-04-29 1986-05-28 Schott Glaswerke, 6500 Mainz Phototropic glass with a refractive index? 1.59, an Abbe number? 40 and a density ≦ 3.2 g / cm? 3?
JP4907850B2 (en) * 2003-06-11 2012-04-04 日本特殊陶業株式会社 Low-temperature fired dielectric ceramic composition and manufacturing method thereof

Also Published As

Publication number Publication date
FR2333758A2 (en) 1977-07-01
JPS51134708A (en) 1976-11-22
ATA94576A (en) 1978-09-15
GB1501820A (en) 1978-02-22
DE2520260C3 (en) 1978-07-13
DE2520260B2 (en) 1977-11-10
DE2520260A1 (en) 1976-11-18
FR2333758B2 (en) 1979-07-13
IT1058047B (en) 1982-04-10
JPS569458B2 (en) 1981-03-02

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties