JPS5211210A - Glass for eyeglass - Google Patents

Glass for eyeglass

Info

Publication number
JPS5211210A
JPS5211210A JP7412975A JP7412975A JPS5211210A JP S5211210 A JPS5211210 A JP S5211210A JP 7412975 A JP7412975 A JP 7412975A JP 7412975 A JP7412975 A JP 7412975A JP S5211210 A JPS5211210 A JP S5211210A
Authority
JP
Japan
Prior art keywords
eyeglass
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.)
Granted
Application number
JP7412975A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5324202B2 (enExample
Inventor
Sadao Suwa
Gorou Enomoto
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.)
OBARA KOUGAKU GARASU SEIZOUSHIYO KK
OBARA OPTICAL GLASS
Original Assignee
OBARA KOUGAKU GARASU SEIZOUSHIYO KK
OBARA OPTICAL GLASS
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 OBARA KOUGAKU GARASU SEIZOUSHIYO KK, OBARA OPTICAL GLASS filed Critical OBARA KOUGAKU GARASU SEIZOUSHIYO KK
Priority to JP7412975A priority Critical patent/JPS5211210A/ja
Publication of JPS5211210A publication Critical patent/JPS5211210A/ja
Publication of JPS5324202B2 publication Critical patent/JPS5324202B2/ja
Granted legal-status Critical Current

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
    • 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)
  • Eyeglasses (AREA)
  • Glass Compositions (AREA)
JP7412975A 1975-06-18 1975-06-18 Glass for eyeglass Granted JPS5211210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7412975A JPS5211210A (en) 1975-06-18 1975-06-18 Glass for eyeglass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7412975A JPS5211210A (en) 1975-06-18 1975-06-18 Glass for eyeglass

Publications (2)

Publication Number Publication Date
JPS5211210A true JPS5211210A (en) 1977-01-28
JPS5324202B2 JPS5324202B2 (enExample) 1978-07-19

Family

ID=13538261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7412975A Granted JPS5211210A (en) 1975-06-18 1975-06-18 Glass for eyeglass

Country Status (1)

Country Link
JP (1) JPS5211210A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53109514A (en) * 1977-03-05 1978-09-25 Nippon Chemical Ind Glass for spectacle lens
FR2486516A1 (fr) * 1980-07-14 1982-01-15 Jenaer Glaswerk Schott & Gen Verre leger, a usage optique et ophtalmique, presentant une bonne tenue aux acides et a l'hydrolyse
US4642297A (en) * 1982-01-22 1987-02-10 Schott Glaswerke Optical glass with refractive indexes of 1.60-1.69 and Abbe numbers of at least 54 with particularly low density and particularly good chemical stability

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53109514A (en) * 1977-03-05 1978-09-25 Nippon Chemical Ind Glass for spectacle lens
FR2486516A1 (fr) * 1980-07-14 1982-01-15 Jenaer Glaswerk Schott & Gen Verre leger, a usage optique et ophtalmique, presentant une bonne tenue aux acides et a l'hydrolyse
US4642297A (en) * 1982-01-22 1987-02-10 Schott Glaswerke Optical glass with refractive indexes of 1.60-1.69 and Abbe numbers of at least 54 with particularly low density and particularly good chemical stability

Also Published As

Publication number Publication date
JPS5324202B2 (enExample) 1978-07-19

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