GB2106497B - Tho2-and cdo-free, optical glass with refractive indices 1.73-1.88 and abbe numbers 35-52 - Google Patents

Tho2-and cdo-free, optical glass with refractive indices 1.73-1.88 and abbe numbers 35-52

Info

Publication number
GB2106497B
GB2106497B GB08227105A GB8227105A GB2106497B GB 2106497 B GB2106497 B GB 2106497B GB 08227105 A GB08227105 A GB 08227105A GB 8227105 A GB8227105 A GB 8227105A GB 2106497 B GB2106497 B GB 2106497B
Authority
GB
United Kingdom
Prior art keywords
tho2
cdo
free
optical glass
refractive indices
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
GB08227105A
Other versions
GB2106497A (en
Inventor
Karl Mennemann
Danuta Grabowski
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB2106497A publication Critical patent/GB2106497A/en
Application granted granted Critical
Publication of GB2106497B publication Critical patent/GB2106497B/en
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
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/14—Silica-free oxide glass compositions containing boron
    • C03C3/15—Silica-free oxide glass compositions containing boron containing rare earths
    • C03C3/155—Silica-free oxide glass compositions containing boron containing rare earths containing zirconium, titanium, tantalum or niobium
GB08227105A 1981-09-25 1982-09-23 Tho2-and cdo-free, optical glass with refractive indices 1.73-1.88 and abbe numbers 35-52 Expired GB2106497B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813138138 DE3138138C2 (en) 1981-09-25 1981-09-25 Th0 2 - and Cd0-free optical glass with refractive indices 1.73 - 1.88 and Abbe numbers of 35 - 52

Publications (2)

Publication Number Publication Date
GB2106497A GB2106497A (en) 1983-04-13
GB2106497B true GB2106497B (en) 1985-04-03

Family

ID=6142557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08227105A Expired GB2106497B (en) 1981-09-25 1982-09-23 Tho2-and cdo-free, optical glass with refractive indices 1.73-1.88 and abbe numbers 35-52

Country Status (4)

Country Link
JP (1) JPS5869741A (en)
DE (1) DE3138138C2 (en)
FR (1) FR2513621A1 (en)
GB (1) GB2106497B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307497C2 (en) 1983-03-03 1985-09-12 Schott Glaswerke, 6500 Mainz Optical glass in the system Si0? 2? - B? 2? 0? 3? - La 2 0 3 - Zr0? 2? - alkali oxide - alkaline earth oxide - Zn0 - F with refractive index? 1.70, Payoff? 48, with good devitrification stability and good chemical resistance
JP4017832B2 (en) * 2001-03-27 2007-12-05 Ｈｏｙａ株式会社 Optical glass and optical components
TWI594966B (en) * 2010-10-08 2017-08-11 Ohara Kk Optical glass, preform and optical element
JP6096409B2 (en) * 2010-10-29 2017-03-15 株式会社オハラ Optical glass, preform and optical element
JP5731358B2 (en) * 2011-09-01 2015-06-10 株式会社オハラ Optical glass, preform and optical element
JP5800766B2 (en) * 2011-10-28 2015-10-28 株式会社オハラ Optical glass, preform and optical element
JP6014573B2 (en) * 2013-04-05 2016-10-25 株式会社オハラ Optical glass, preform material and optical element
JP5875572B2 (en) * 2013-04-05 2016-03-02 株式会社オハラ Optical glass, preform material and optical element
JP5979723B2 (en) * 2013-07-31 2016-08-31 株式会社オハラ Optical glass and optical element
JP6462245B2 (en) * 2014-01-07 2019-01-30 日本電気硝子株式会社 Optical glass
JP6462244B2 (en) * 2014-01-07 2019-01-30 日本電気硝子株式会社 Optical glass
CN109734304B (en) * 2019-03-28 2021-12-07 成都光明光电股份有限公司 Optical glass, glass preform, optical element and optical instrument

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1529337A (en) * 1966-12-12 1968-06-14 Jenaer Glas Schott Gen Veb Borate optical glasses
JPS5215510A (en) * 1975-07-28 1977-02-05 Nippon Chemical Ind Optical glass
JPS5285210A (en) * 1976-01-09 1977-07-15 Fuji Photo Film Co Ltd Optical glass
US4120732A (en) * 1977-12-12 1978-10-17 Kabushiki Kaisha Ohara Kogaku Garasu Seizosho Optical glass
JPS55121925A (en) * 1979-03-14 1980-09-19 Ohara Inc Optical glass
JPS565345A (en) * 1979-06-28 1981-01-20 Nippon Kogaku Kk <Nikon> Optical glass

Also Published As

Publication number Publication date
JPS5869741A (en) 1983-04-26
FR2513621A1 (en) 1983-04-01
JPS6332735B2 (en) 1988-07-01
DE3138138A1 (en) 1983-04-14
FR2513621B1 (en) 1985-05-17
GB2106497A (en) 1983-04-13
DE3138138C2 (en) 1983-10-27

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20020922