JPS548484B2 - - Google Patents

Info

Publication number
JPS548484B2
JPS548484B2 JP8624675A JP8624675A JPS548484B2 JP S548484 B2 JPS548484 B2 JP S548484B2 JP 8624675 A JP8624675 A JP 8624675A JP 8624675 A JP8624675 A JP 8624675A JP S548484 B2 JPS548484 B2 JP S548484B2
Authority
JP
Japan
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
JP8624675A
Other versions
JPS5134914A (ja
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 filed Critical
Publication of JPS5134914A publication Critical patent/JPS5134914A/ja
Publication of JPS548484B2 publication Critical patent/JPS548484B2/ja
Expired 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
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S501/00—Compositions: ceramic
    • Y10S501/90—Optical glass, e.g. silent on refractive index and/or ABBE number
    • Y10S501/903—Optical glass, e.g. silent on refractive index and/or ABBE number having refractive index less than 1.8 and ABBE number less than 70

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)
JP8624675A 1974-07-24 1975-07-16 Expired JPS548484B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742435555 DE2435555C2 (de) 1974-07-24 1974-07-24 Optisches glas des systems sio tief 2 -b tief 2 o tief 3 -bao-la tief 2 o tief 3 -zro tief 2 mit der optischen lage nd=(1,650+-2)x10 hoch -3 und vd=55,5+-1,0, das sich durch hohe chemische bestaendigkeit und geringe kristallisationsneigung auszeichnet

Publications (2)

Publication Number Publication Date
JPS5134914A JPS5134914A (ja) 1976-03-25
JPS548484B2 true JPS548484B2 (ja) 1979-04-16

Family

ID=5921375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8624675A Expired JPS548484B2 (ja) 1974-07-24 1975-07-16

Country Status (5)

Country Link
US (1) US3970466A (ja)
JP (1) JPS548484B2 (ja)
DE (1) DE2435555C2 (ja)
FR (1) FR2279685A1 (ja)
GB (1) GB1475642A (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2660012C2 (de) * 1975-06-02 1983-12-22 Hoya Glass Works, Ltd, Tokyo Gläser für Augenlinsen mit einem Brechungsindex von mindestens 1,70, einem Abbe-Wert von 40 und einem spezifischen Gewicht von nicht mehr als 3,0g/cm↑3↑
JPS55151601A (en) * 1979-05-15 1980-11-26 Minolta Camera Co Ltd Pentagonal prism for camera finder
DE2952705C2 (de) * 1979-12-29 1982-03-18 Schott Glaswerke, 6500 Mainz Optisches Glas mit der optischen Lage n↓D↓ ist 1,62+-(1,5 mal 10-2), V↓D↓ ist 59,5+-1,0, mit hoher chemischer Beständigkeit und geringer Kristallisationsneigung aufbauend auf dem an sich bekannten System SiO↓2↓-B↓2↓O↓3↓-La↓2↓O↓3↓-SrO-
DE3331106C2 (de) * 1983-08-30 1985-09-19 Schott Glaswerke, 6500 Mainz Optisches Glas mit einem Brechtwert ≥1.60 und einer Abbezahl ≥58, mit hoher chemischer Stabilität und Entmischungs- und Kristallisationsfestigkeit im System SiO↓2↓-B↓2↓O↓3↓-SrO-La↓2↓O↓3↓-Al↓2↓O↓3↓-BaO-Alkalioxid-F
JPS6291190A (ja) * 1985-10-17 1987-04-25 Ajinomoto Co Inc 発酵法によるｌ−アミノ酸の製造法
US5371048A (en) * 1993-10-18 1994-12-06 Corning Incorporated Dense barium crown optical glasses
DE60126186T2 (de) * 2000-06-05 2007-11-15 Kabushiki Kaisha Ohara, Sagamihara Optische Gläser die unter Betriebsbedingungen bei UV-Belichtung in Bezug auf ihren Brechungsindex möglichst stabil sind

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1496548B2 (de) * 1965-09-04 1971-09-30 Jenaer Glaswerk Schott & Gen , 6500 Mainz Kristallisationsstabile thoriumoxid und berylliumoxid freie optische glaeser

Also Published As

Publication number Publication date
DE2435555C2 (de) 1976-08-26
GB1475642A (en) 1977-06-01
FR2279685A1 (fr) 1976-02-20
US3970466A (en) 1976-07-20
DE2435555B1 (de) 1976-01-22
FR2279685B1 (ja) 1978-07-28
JPS5134914A (ja) 1976-03-25

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