JPS647013B2 - - Google Patents

Info

Publication number
JPS647013B2
JPS647013B2 JP22994883A JP22994883A JPS647013B2 JP S647013 B2 JPS647013 B2 JP S647013B2 JP 22994883 A JP22994883 A JP 22994883A JP 22994883 A JP22994883 A JP 22994883A JP S647013 B2 JPS647013 B2 JP S647013B2
Authority
JP
Japan
Prior art keywords
specific gravity
glass
cao
sio
mgo
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
JP22994883A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60122745A (ja
Inventor
Hiroharu Sagara
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.)
Hoya Corp
Original Assignee
Hoya Corp
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 Hoya Corp filed Critical Hoya Corp
Priority to JP22994883A priority Critical patent/JPS60122745A/ja
Publication of JPS60122745A publication Critical patent/JPS60122745A/ja
Publication of JPS647013B2 publication Critical patent/JPS647013B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/12Silica-free oxide glass compositions
    • C03C3/14Silica-free oxide glass compositions containing boron
    • C03C3/15Silica-free oxide glass compositions containing boron containing rare earths
    • C03C3/155Silica-free oxide glass compositions containing boron containing rare earths containing zirconium, titanium, tantalum or niobium

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)
JP22994883A 1983-12-07 1983-12-07 光学ガラス Granted JPS60122745A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22994883A JPS60122745A (ja) 1983-12-07 1983-12-07 光学ガラス

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22994883A JPS60122745A (ja) 1983-12-07 1983-12-07 光学ガラス

Publications (2)

Publication Number Publication Date
JPS60122745A JPS60122745A (ja) 1985-07-01
JPS647013B2 true JPS647013B2 (enrdf_load_stackoverflow) 1989-02-07

Family

ID=16900224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22994883A Granted JPS60122745A (ja) 1983-12-07 1983-12-07 光学ガラス

Country Status (1)

Country Link
JP (1) JPS60122745A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8605356A (pt) * 1985-11-29 1987-08-04 Corning Glass Works Vidro para aplicacoes oticas e/ou oftalmicas
FR2690436B1 (fr) * 1992-04-22 1995-02-03 Corning France Verres à très haut indice de réfraction et faible densité.
AU3233401A (en) 2000-02-18 2001-08-27 Nikon Corporation Optical glass and projection aligner using the same
JP4522392B2 (ja) * 2006-06-16 2010-08-11 Hoya株式会社 光学ガラス及びそれを用いた光学製品
JP2009203155A (ja) 2008-01-31 2009-09-10 Ohara Inc 光学ガラス
JP2011037660A (ja) * 2009-08-07 2011-02-24 Ohara Inc 光学ガラス、レンズプリフォーム及び光学素子
JP2011246337A (ja) * 2010-04-30 2011-12-08 Ohara Inc 光学ガラス、光学素子およびガラス成形体の製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337887B2 (enrdf_load_stackoverflow) * 1972-11-13 1978-10-12
JPS5640092B2 (enrdf_load_stackoverflow) * 1973-10-31 1981-09-18
FR2348163A1 (fr) * 1976-04-16 1977-11-10 Corning Glass Works Verre a haut indice de refraction et faible densite
DE3201344C2 (de) * 1982-01-18 1984-02-16 Schott Glaswerke, 6500 Mainz Hochbrechende optische Gläser im System SiO↓2↓-B↓2↓O↓3↓-Alkalioxid-Erdalkalioxid-La↓2↓O↓3↓-ZrO↓2↓-TiO↓2↓-Nb↓2↓O↓5↓ mit Brechwerten von 1,79 - 1,82, Abbezahlen ≥ 32 und Dichten ≦ 4,0
DE3201346C2 (de) * 1982-01-18 1986-03-13 Schott Glaswerke, 6500 Mainz Hochbrechende optische Gläser mit Brechungsindices von 1,84 - 1,87 und Abbezahlen von 30 - 33 im System SiO↓2↓-B↓2↓O↓3↓-Alkalioxid-Erdalkalioxid/ZnO-PbO-La↓2↓O↓3↓-ZrO↓2↓-TiO↓2↓-Nb↓2↓O↓5↓

Also Published As

Publication number Publication date
JPS60122745A (ja) 1985-07-01

Similar Documents

Publication Publication Date Title
US4612295A (en) Glass for eye glass lens
US4179300A (en) Optical glass
US4084978A (en) Glass for eye glass lens
US4111707A (en) Optical glass
JPH0144651B2 (enrdf_load_stackoverflow)
JPH0243692B2 (enrdf_load_stackoverflow)
JP2668049B2 (ja) 光学ガラス
US4128432A (en) Optical glass
JPS6033229A (ja) 高屈折率光学ガラス
JPS638057B2 (enrdf_load_stackoverflow)
JPH1143344A (ja) 光学ガラス
JPH07149536A (ja) 光学ガラス
JP2001072432A (ja) 光学ガラス
US5320985A (en) Low refractive optical glass of a flint glass type
JPS638056B2 (enrdf_load_stackoverflow)
JP2707010B2 (ja) 光学ガラス
JPS6311292B2 (enrdf_load_stackoverflow)
JP2000128570A (ja) 光学ガラス
JPH08119666A (ja) 光学ガラス
JP2509334B2 (ja) 光学ガラス
JPH031246B2 (enrdf_load_stackoverflow)
JP3987174B2 (ja) 精密プレス成形用光学ガラス
JPS647013B2 (enrdf_load_stackoverflow)
JPH0741334A (ja) 光学ガラス
JPH06144868A (ja) 光学ガラス