JPS55126549A - High refraction high dispersion optical glass - Google Patents

High refraction high dispersion optical glass

Info

Publication number
JPS55126549A
JPS55126549A JP3116779A JP3116779A JPS55126549A JP S55126549 A JPS55126549 A JP S55126549A JP 3116779 A JP3116779 A JP 3116779A JP 3116779 A JP3116779 A JP 3116779A JP S55126549 A JPS55126549 A JP S55126549A
Authority
JP
Japan
Prior art keywords
glass
optical glass
metal oxides
dispersion optical
zro
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
JP3116779A
Other languages
Japanese (ja)
Other versions
JPS623103B2 (en
Inventor
Sadao Suwa
Goro 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 OPTICAL GLASS
Ohara Inc
Original Assignee
OBARA OPTICAL GLASS
Ohara Inc
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 OPTICAL GLASS, Ohara Inc filed Critical OBARA OPTICAL GLASS
Priority to JP3116779A priority Critical patent/JPS55126549A/en
Publication of JPS55126549A publication Critical patent/JPS55126549A/en
Publication of JPS623103B2 publication Critical patent/JPS623103B2/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

Abstract

PURPOSE: To provide optical glass consisting basically of SiO2, TiO2, ZrO2, Nb2O3, divalent metal oxides, monovalent metal oxides and As2O3 and/or F2 exhibiting superior devitrification resistance, uncolorability and chemical durability, and having low specific gravity.
CONSTITUTION: The high refraction high dispersion optical glass consists of, by wt., SiO2 20W37%, TiO2 26W33%, ZrO2 1W8%, Nb2O3 1W12%, (BaO+MgO+ SrO+ZnO) 9W18%, (Na2O+K2O+Li2O) 10W18% and As2O3 and/or F2 in fluorides substd. for the metal oxides 0.02W5% in total. In the compsn. Na2O 4W12%, K2O 2W10%, Li2O 0W5% and As2O3 0W0.5%. This glass has such optical constants as a refractive index of 1.75W1.85 and an Abbe's no. (νd) of 29W23. Since it is superior to conventional glass in devitrification resistance, it is manufactured easily, and starting materials for this glass are cheap.
COPYRIGHT: (C)1980,JPO&Japio
JP3116779A 1979-03-19 1979-03-19 High refraction high dispersion optical glass Granted JPS55126549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3116779A JPS55126549A (en) 1979-03-19 1979-03-19 High refraction high dispersion optical glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3116779A JPS55126549A (en) 1979-03-19 1979-03-19 High refraction high dispersion optical glass

Publications (2)

Publication Number Publication Date
JPS55126549A true JPS55126549A (en) 1980-09-30
JPS623103B2 JPS623103B2 (en) 1987-01-23

Family

ID=12323869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3116779A Granted JPS55126549A (en) 1979-03-19 1979-03-19 High refraction high dispersion optical glass

Country Status (1)

Country Link
JP (1) JPS55126549A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420306A1 (en) * 1983-07-14 1985-01-31 Hoya Corp., Tokio/Tokyo GLASS FOR EYE GLASS LENSES
US4526874A (en) * 1982-05-03 1985-07-02 Schott Glaswerke Optical light weight glass with a refractive index of >1.70, an Abbe index of >22 and a density of <3.5 G/CM3
FR2577212A1 (en) * 1985-02-11 1986-08-14 Schott Glaswerke HIGH REFRACTING OPTICAL GLASS
GB2377435A (en) * 2001-07-11 2003-01-15 Zeiss Stiftung Lead-free optical heavy flint glasses
JP2004155639A (en) * 2001-11-14 2004-06-03 Hoya Corp Optical glass, glass material for press molding, optical element, and methods of manufacturing them
JP2006315953A (en) * 2001-11-14 2006-11-24 Hoya Corp Optical glass, glass material for press molding, optical element and their manufacturing method
JP2009203134A (en) * 2008-02-28 2009-09-10 Ohara Inc Optical glass and optical element
CN104341103A (en) * 2013-07-23 2015-02-11 成都光明光电股份有限公司 Environment-friendly flint optical glass and optical element
CN104944768A (en) * 2015-06-12 2015-09-30 成都光明光电股份有限公司 Environment-friendly optical glass, fabricated glass part, optical element and optical instrument
WO2016008866A1 (en) * 2014-07-14 2016-01-21 Schott Ag High-refractive-index thin sheet glass
US10308545B2 (en) 2010-10-26 2019-06-04 Schott Ag Highly refractive thin glasses
US10343946B2 (en) 2010-10-26 2019-07-09 Schott Ag Highly refractive thin glasses
US11787729B2 (en) 2020-05-18 2023-10-17 Corning Incorporated Glass compositions with high refractive indexes and low densities

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830647A (en) * 1971-08-24 1973-04-23
JPS5225812A (en) * 1975-08-20 1977-02-26 Sumita Optical Glass Optical flint glass of low density

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830647A (en) * 1971-08-24 1973-04-23
JPS5225812A (en) * 1975-08-20 1977-02-26 Sumita Optical Glass Optical flint glass of low density

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526874A (en) * 1982-05-03 1985-07-02 Schott Glaswerke Optical light weight glass with a refractive index of >1.70, an Abbe index of >22 and a density of <3.5 G/CM3
DE3420306A1 (en) * 1983-07-14 1985-01-31 Hoya Corp., Tokio/Tokyo GLASS FOR EYE GLASS LENSES
FR2577212A1 (en) * 1985-02-11 1986-08-14 Schott Glaswerke HIGH REFRACTING OPTICAL GLASS
US4734389A (en) * 1985-02-11 1988-03-29 Schott Glaswerke Highly refractive optical glass with refractive indices >1.83 and Abbe numbers <25, and with very good chemical stability
GB2377435B (en) * 2001-07-11 2005-04-27 Zeiss Stiftung Lead-free optical heavy flint glasses
GB2377435A (en) * 2001-07-11 2003-01-15 Zeiss Stiftung Lead-free optical heavy flint glasses
US6709998B2 (en) 2001-07-11 2004-03-23 Schott Glas Lead-free optical heavy flint glasses
JP2006315953A (en) * 2001-11-14 2006-11-24 Hoya Corp Optical glass, glass material for press molding, optical element and their manufacturing method
JP2004155639A (en) * 2001-11-14 2004-06-03 Hoya Corp Optical glass, glass material for press molding, optical element, and methods of manufacturing them
JP2009203134A (en) * 2008-02-28 2009-09-10 Ohara Inc Optical glass and optical element
US10308545B2 (en) 2010-10-26 2019-06-04 Schott Ag Highly refractive thin glasses
US10343946B2 (en) 2010-10-26 2019-07-09 Schott Ag Highly refractive thin glasses
CN104341103A (en) * 2013-07-23 2015-02-11 成都光明光电股份有限公司 Environment-friendly flint optical glass and optical element
WO2016008866A1 (en) * 2014-07-14 2016-01-21 Schott Ag High-refractive-index thin sheet glass
CN104944768A (en) * 2015-06-12 2015-09-30 成都光明光电股份有限公司 Environment-friendly optical glass, fabricated glass part, optical element and optical instrument
US11787729B2 (en) 2020-05-18 2023-10-17 Corning Incorporated Glass compositions with high refractive indexes and low densities

Also Published As

Publication number Publication date
JPS623103B2 (en) 1987-01-23

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