JPS55116641A - Optical glass - Google Patents
Optical glassInfo
- Publication number
- JPS55116641A JPS55116641A JP2202379A JP2202379A JPS55116641A JP S55116641 A JPS55116641 A JP S55116641A JP 2202379 A JP2202379 A JP 2202379A JP 2202379 A JP2202379 A JP 2202379A JP S55116641 A JPS55116641 A JP S55116641A
- Authority
- JP
- Japan
- Prior art keywords
- optical glass
- zro
- zno
- refractive index
- sio
- 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
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
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)
Abstract
PURPOSE: To provide ThO2-free low dispersion optical glass having a special composition based on SiO2, B2O3, ZnO, ZrO2, La2O3 and Y2O3, superior devitrification resistance and a high refractive index.
CONSTITUTION: A mixt. consisting of, by weight SiO2 2W5%, B2O3 24W32%, ZnO 1W20%, ZrO2 1W10%, La2O3 45.1W55%, Y2O3 1W20%, CaO+PbO 0W10%, WO3 0W10%, Nb2O5 0W20% and Li2O+K2O+Na2O 0W1% is melted at 1250W 1350°C, refined, agitated, poured into a mold preheated to a suitable temp., and slowly cooled to obtain optical glass having a refractive index of 1.74W1.85 and an abbe's no. of 38W55.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2202379A JPS55116641A (en) | 1979-02-28 | 1979-02-28 | Optical glass |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2202379A JPS55116641A (en) | 1979-02-28 | 1979-02-28 | Optical glass |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55116641A true JPS55116641A (en) | 1980-09-08 |
JPS6114090B2 JPS6114090B2 (en) | 1986-04-17 |
Family
ID=12071377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2202379A Granted JPS55116641A (en) | 1979-02-28 | 1979-02-28 | Optical glass |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55116641A (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1245544A2 (en) * | 2001-03-27 | 2002-10-02 | Hoya Corporation | Optical glass and optical part |
GB2411398A (en) * | 2004-02-26 | 2005-08-31 | Schott Ag | Lead- and arsenic-free optical lanthanum flint glasses |
JP2006248897A (en) * | 2002-12-27 | 2006-09-21 | Hoya Corp | Optical glass, glass gob for press molding and optical element |
WO2008111681A1 (en) * | 2007-03-12 | 2008-09-18 | Ohara Inc. | Optical glass and process for producing the same |
EP1980448A1 (en) * | 2007-03-20 | 2008-10-15 | Hoya Corporation | On-vehicle camera lens glass material and on-vehicle camera lens |
US7576020B2 (en) | 2004-10-12 | 2009-08-18 | Hoya Corporation | Optical glass, precision press-molding preform, process for the production of the preform, optical element and process for the production of the optical element |
WO2013034082A1 (en) * | 2011-09-07 | 2013-03-14 | 成都光明光电股份有限公司 | Optical glass and optical element |
JP2014062026A (en) * | 2011-12-28 | 2014-04-10 | Ohara Inc | Optical glass and optical element |
JP2015030631A (en) * | 2013-07-31 | 2015-02-16 | 株式会社オハラ | Optical glass and optical element |
JP2015044724A (en) * | 2013-07-31 | 2015-03-12 | 株式会社オハラ | Optical glass, preform, and optical element |
JP2015044725A (en) * | 2013-07-31 | 2015-03-12 | 株式会社オハラ | Optical glass, preform, and optical element |
WO2015083616A1 (en) * | 2013-12-03 | 2015-06-11 | 旭硝子株式会社 | Optical glass, preform for press-molding, and optical element |
JP2016196408A (en) * | 2016-08-19 | 2016-11-24 | 株式会社オハラ | Optical glass and optical element |
US9650285B2 (en) | 2014-09-30 | 2017-05-16 | Hoya Corporation | Glass, glass material for press molding, optical element blank, and optical element |
JP2017171578A (en) * | 2017-06-23 | 2017-09-28 | 株式会社オハラ | Optical glass and optical element |
CN107721160A (en) * | 2013-04-05 | 2018-02-23 | 株式会社小原 | Optical glass, preforming material and optical element |
JP2018065747A (en) * | 2018-01-18 | 2018-04-26 | Hoya株式会社 | Glass, glass blank for press-forming, optical element blank, and optical element |
JP2019178058A (en) * | 2017-05-16 | 2019-10-17 | 株式会社オハラ | Optical glass, preform and optical element |
JP2019189490A (en) * | 2018-04-26 | 2019-10-31 | Hoya株式会社 | Optical glass and optical element |
-
1979
- 1979-02-28 JP JP2202379A patent/JPS55116641A/en active Granted
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1245544A3 (en) * | 2001-03-27 | 2002-12-11 | Hoya Corporation | Optical glass and optical part |
US6645894B2 (en) * | 2001-03-27 | 2003-11-11 | Hoya Corporation | Optical glass and optical part |
EP1245544A2 (en) * | 2001-03-27 | 2002-10-02 | Hoya Corporation | Optical glass and optical part |
JP2006248897A (en) * | 2002-12-27 | 2006-09-21 | Hoya Corp | Optical glass, glass gob for press molding and optical element |
JP4562041B2 (en) * | 2002-12-27 | 2010-10-13 | Hoya株式会社 | Optical glass, glass gob for press molding, and optical element |
KR101177935B1 (en) * | 2004-02-26 | 2012-08-28 | 쇼오트 아게 | Lead- and arsenic-free optical lanthanum flint glasses |
JP2005239544A (en) * | 2004-02-26 | 2005-09-08 | Schott Ag | Lead-free and arsenic-free optical lanthanum flint glass |
FR2866873A1 (en) * | 2004-02-26 | 2005-09-02 | Schott Ag | FLINT OPTIC GLASSES WITH LANTHANE FREE OF LEAD AND ARSENIC |
GB2411398B (en) * | 2004-02-26 | 2010-12-29 | Schott Ag | Lead- and arsenic-free optical lanthanum flint glasses |
GB2411398A (en) * | 2004-02-26 | 2005-08-31 | Schott Ag | Lead- and arsenic-free optical lanthanum flint glasses |
US7576020B2 (en) | 2004-10-12 | 2009-08-18 | Hoya Corporation | Optical glass, precision press-molding preform, process for the production of the preform, optical element and process for the production of the optical element |
WO2008111681A1 (en) * | 2007-03-12 | 2008-09-18 | Ohara Inc. | Optical glass and process for producing the same |
EP1980448A1 (en) * | 2007-03-20 | 2008-10-15 | Hoya Corporation | On-vehicle camera lens glass material and on-vehicle camera lens |
US9145328B2 (en) | 2011-09-07 | 2015-09-29 | Cdgm Glass Co., Ltd | Optical glass and optical element |
WO2013034082A1 (en) * | 2011-09-07 | 2013-03-14 | 成都光明光电股份有限公司 | Optical glass and optical element |
JP2014529574A (en) * | 2011-09-07 | 2014-11-13 | 成都光明光▲電▼股▲分▼有限公司 | Optical glass and optical element |
JP2014062026A (en) * | 2011-12-28 | 2014-04-10 | Ohara Inc | Optical glass and optical element |
CN107721160A (en) * | 2013-04-05 | 2018-02-23 | 株式会社小原 | Optical glass, preforming material and optical element |
JP2015044725A (en) * | 2013-07-31 | 2015-03-12 | 株式会社オハラ | Optical glass, preform, and optical element |
JP2015030631A (en) * | 2013-07-31 | 2015-02-16 | 株式会社オハラ | Optical glass and optical element |
JP2015044724A (en) * | 2013-07-31 | 2015-03-12 | 株式会社オハラ | Optical glass, preform, and optical element |
CN108455840A (en) * | 2013-07-31 | 2018-08-28 | 株式会社小原 | Optical glass and optical element |
WO2015083616A1 (en) * | 2013-12-03 | 2015-06-11 | 旭硝子株式会社 | Optical glass, preform for press-molding, and optical element |
JP2019151550A (en) * | 2013-12-03 | 2019-09-12 | Agc株式会社 | Optical glass, preform for press-molding, and optical element |
JPWO2015083616A1 (en) * | 2013-12-03 | 2017-03-16 | 旭硝子株式会社 | Optical glass, preform for press molding, and optical element |
US9650285B2 (en) | 2014-09-30 | 2017-05-16 | Hoya Corporation | Glass, glass material for press molding, optical element blank, and optical element |
JP2016196408A (en) * | 2016-08-19 | 2016-11-24 | 株式会社オハラ | Optical glass and optical element |
JP2019178058A (en) * | 2017-05-16 | 2019-10-17 | 株式会社オハラ | Optical glass, preform and optical element |
JP2017171578A (en) * | 2017-06-23 | 2017-09-28 | 株式会社オハラ | Optical glass and optical element |
JP2018065747A (en) * | 2018-01-18 | 2018-04-26 | Hoya株式会社 | Glass, glass blank for press-forming, optical element blank, and optical element |
JP2019189490A (en) * | 2018-04-26 | 2019-10-31 | Hoya株式会社 | Optical glass and optical element |
Also Published As
Publication number | Publication date |
---|---|
JPS6114090B2 (en) | 1986-04-17 |
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