GB2137981B - Optical glass - Google Patents

Optical glass

Info

Publication number
GB2137981B
GB2137981B GB08405441A GB8405441A GB2137981B GB 2137981 B GB2137981 B GB 2137981B GB 08405441 A GB08405441 A GB 08405441A GB 8405441 A GB8405441 A GB 8405441A GB 2137981 B GB2137981 B GB 2137981B
Authority
GB
United Kingdom
Prior art keywords
optical glass
glass
optical
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
GB08405441A
Other versions
GB2137981A (en
GB8405441D0 (en
Inventor
Danau Grabowski
Dr Ludwig Ross
Volkmar Geiler
Dr Georg Gliemeroth
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 GB8405441D0 publication Critical patent/GB8405441D0/en
Publication of GB2137981A publication Critical patent/GB2137981A/en
Application granted granted Critical
Publication of GB2137981B publication Critical patent/GB2137981B/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
    • C03C3/04—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
GB08405441A 1983-03-03 1984-03-01 Optical glass Expired GB2137981B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833307497 DE3307497C2 (en) 1983-03-03 1983-03-03 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

Publications (3)

Publication Number Publication Date
GB8405441D0 GB8405441D0 (en) 1984-04-04
GB2137981A GB2137981A (en) 1984-10-17
GB2137981B true GB2137981B (en) 1986-12-03

Family

ID=6192394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08405441A Expired GB2137981B (en) 1983-03-03 1984-03-01 Optical glass

Country Status (4)

Country Link
JP (1) JPS59169952A (en)
DE (1) DE3307497C2 (en)
FR (1) FR2541988B1 (en)
GB (1) GB2137981B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3500578A1 (en) * 1985-01-10 1986-07-10 Schott Glaswerke, 6500 Mainz Optical glass having refractive indices of from 1.73 to 1.80 and Abbe numbers >/= 49
TW593195B (en) 2001-02-05 2004-06-21 Koninkl Philips Electronics Nv Multicomponent glass, glass fiber, twister and taper
DE10227494C1 (en) * 2002-06-19 2003-12-04 Schott Glas Lead-free optical glass with specified refractive index and Abbe number, for optics, laser technology and communications, has specified composition
JP4739721B2 (en) * 2003-11-17 2011-08-03 株式会社オハラ Optical glass
DE102004009930B4 (en) * 2004-02-26 2008-07-24 Schott Ag Lead- and arsenic-free optical lanthanum flint glasses and their use
JP4751225B2 (en) 2006-03-28 2011-08-17 Ｈｏｙａ株式会社 Optical glass, precision press-molding preform, optical element and manufacturing method thereof
JP2010083702A (en) * 2008-09-30 2010-04-15 Hoya Corp Optical glass, glass gob for press forming and optical element
KR101679443B1 (en) 2009-02-03 2016-11-24 호야 가부시키가이샤 Optical glass, preform for precision press molding, and optical element
CN107879619B (en) * 2010-07-26 2021-09-17 株式会社小原 Optical glass, preform, optical element and optical apparatus
JP6095260B2 (en) * 2010-07-26 2017-03-15 株式会社オハラ 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
JP6076594B2 (en) * 2010-12-13 2017-02-08 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
JP5705175B2 (en) * 2011-08-05 2015-04-22 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
CN102311229A (en) * 2011-09-07 2012-01-11 成都光明光电股份有限公司 Optical glass and optical element
JP5727417B2 (en) * 2012-06-15 2015-06-03 Hoya株式会社 Optical glass, optical element and manufacturing method thereof
JP6049591B2 (en) * 2013-07-31 2016-12-21 株式会社オハラ Optical glass, preform material and optical element
JP6462244B2 (en) * 2014-01-07 2019-01-30 日本電気硝子株式会社 Optical glass
JP6462245B2 (en) * 2014-01-07 2019-01-30 日本電気硝子株式会社 Optical glass
CN111453988A (en) * 2019-01-22 2020-07-28 成都光明光电股份有限公司 Optical glass and glass prefabricated member, element and instrument thereof
CN109553296B (en) * 2019-01-22 2022-08-02 成都光明光电股份有限公司 Optical glass and glass prefabricated member, element and instrument thereof
CN111453989A (en) * 2019-01-22 2020-07-28 成都光明光电股份有限公司 Lanthanide optical glass and glass preform, element and instrument thereof
CN109455925B (en) * 2019-01-22 2022-04-22 成都光明光电股份有限公司 Low-softening-point optical glass and glass prefabricated member, element and instrument thereof

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650780A (en) * 1969-05-01 1972-03-21 Corning Glass Works Fiber optic core glass
DE2237259A1 (en) 1971-07-30 1973-02-01 Hoya Glass Works Ltd OPTICAL GLASSES
JPS582074B2 (en) 1973-05-15 1983-01-13 カブシキガイシヤ シヤケン Shashinshiyokujiki
JPS5117570A (en) 1974-08-02 1976-02-12 Meidensha Electric Mfg Co Ltd KOIRUSHIKEN SOCHI
JPS5214607A (en) * 1975-07-24 1977-02-03 Obara Optical Glass Optical glass not containing thorium
JPS5215510A (en) 1975-07-28 1977-02-05 Nippon Chemical Ind Optical glass
JPS5263211A (en) 1975-11-20 1977-05-25 Nippon Chemical Ind Optical glass
GB1562130A (en) * 1977-12-14 1980-03-05 Ohara Optical Glass Mfg Optical glass
DE2756160A1 (en) * 1977-12-16 1979-06-21 Ohara Optical Glass Mfg Optical glass having high refractive and low dispersive properties - and free of poisonous thorium oxide
JPS553329A (en) * 1978-06-21 1980-01-11 Ohara Inc Optical glass
JPS5678447A (en) * 1979-11-29 1981-06-27 Minolta Camera Co Ltd Optical glass
JPS5734044A (en) * 1980-08-07 1982-02-24 Nippon Kogaku Kk <Nikon> Optical glass
DE3130066A1 (en) * 1981-07-30 1983-02-17 Schott Glaswerke, 6500 Mainz CdO-, ThO2- and Ta2O5-free or low Ta2O5 optical glass having a refractive index of 1.76 - 1.81 and an Abbe number of 51-44
DE3138138C2 (en) 1981-09-25 1983-10-27 Schott Glaswerke, 6500 Mainz Th0 2 - and Cd0-free optical glass with refractive indices 1.73 - 1.88 and Abbe numbers of 35 - 52
JPH0514712A (en) 1991-07-02 1993-01-22 Ricoh Co Ltd Picture reader

Also Published As

Publication number Publication date
DE3307497A1 (en) 1984-09-06
FR2541988A1 (en) 1984-09-07
FR2541988B1 (en) 1991-07-12
GB2137981A (en) 1984-10-17
DE3307497C2 (en) 1985-09-12
GB8405441D0 (en) 1984-04-04
JPS59169952A (en) 1984-09-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950301