WO2009072586A1 - Optical glass, and preform for fine press molding and optical element each comprising the same - Google Patents
Optical glass, and preform for fine press molding and optical element each comprising the same Download PDFInfo
- Publication number
- WO2009072586A1 WO2009072586A1 PCT/JP2008/072100 JP2008072100W WO2009072586A1 WO 2009072586 A1 WO2009072586 A1 WO 2009072586A1 JP 2008072100 W JP2008072100 W JP 2008072100W WO 2009072586 A1 WO2009072586 A1 WO 2009072586A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical glass
- optical
- preform
- same
- press molding
- Prior art date
Links
- 239000005304 optical glass Substances 0.000 title abstract 4
- 238000000465 moulding Methods 0.000 title abstract 3
- 230000003287 optical effect Effects 0.000 title abstract 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 abstract 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 1
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 abstract 1
- 230000009477 glass transition Effects 0.000 abstract 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 abstract 1
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten(VI) oxide Inorganic materials O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/02—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of crystals, e.g. rock-salt, semi-conductors
-
- 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)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
Disclosed is an optical glass which comprises 15 to 30% of B2O3, 2 to 8% of SiO2, 15 to 30% of La2O3, 15 to 30% of Gd2O3, 20 to 30% of ZnO, 0.1 to 2% of Li2O, 0.1 to 6% of ZrO2 and 0.1 to 6% of Ta2O5 as essential components, and optionally further comprises 0 to 6% of WO3, wherein all of the contents of the components are expressed in terms of the oxide contents by mass. The optical glass has a total content of Ta2O5, ZrO2 and WO3 of 0.2 to 9%, a refractive index (nd) of 1.77 to 1.78, an Abbe's number (νd) of 46 to 48, and a glass transition temperature (Tg) of 600˚C or lower. The optical glass has high-refractive and low-scattering optical properties, has a low molding temperature, is less likely to devitrify, and has excellent molding resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009544726A JPWO2009072586A1 (en) | 2007-12-06 | 2008-12-04 | Optical glass, and precision press molding preform and optical element using the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007316424 | 2007-12-06 | ||
| JP2007-316424 | 2007-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009072586A1 true WO2009072586A1 (en) | 2009-06-11 |
Family
ID=40717764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2008/072100 WO2009072586A1 (en) | 2007-12-06 | 2008-12-04 | Optical glass, and preform for fine press molding and optical element each comprising the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2009072586A1 (en) |
| TW (1) | TW200932697A (en) |
| WO (1) | WO2009072586A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011026157A (en) * | 2009-07-23 | 2011-02-10 | Nippon Electric Glass Co Ltd | Optical glass |
| CN102923952A (en) * | 2012-11-23 | 2013-02-13 | 成都光明光电股份有限公司 | Optical glass, glass prefabricated part and optical element |
| CN112368246A (en) * | 2018-09-28 | 2021-02-12 | 日本山村硝子株式会社 | Optical glass |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190256402A1 (en) * | 2016-06-29 | 2019-08-22 | Ohara Inc. | Optical glass, preform, and optical element |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826766A (en) * | 1994-07-07 | 1996-01-30 | Nikon Corp | Optical glass |
| JP2003201143A (en) * | 2001-10-24 | 2003-07-15 | Hoya Corp | Optical glass, preform for press forming and optical parts |
| JP2005015302A (en) * | 2003-06-27 | 2005-01-20 | Nippon Electric Glass Co Ltd | Optical glass for mold press molding |
| JP2006016286A (en) * | 2004-07-05 | 2006-01-19 | Hoya Corp | Manufacturing method of glass optical element |
| JP2006111482A (en) * | 2004-10-14 | 2006-04-27 | Konica Minolta Opto Inc | Optical glass and optical element |
-
2008
- 2008-12-04 WO PCT/JP2008/072100 patent/WO2009072586A1/en active Application Filing
- 2008-12-04 JP JP2009544726A patent/JPWO2009072586A1/en active Pending
- 2008-12-05 TW TW97147532A patent/TW200932697A/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826766A (en) * | 1994-07-07 | 1996-01-30 | Nikon Corp | Optical glass |
| JP2003201143A (en) * | 2001-10-24 | 2003-07-15 | Hoya Corp | Optical glass, preform for press forming and optical parts |
| JP2005015302A (en) * | 2003-06-27 | 2005-01-20 | Nippon Electric Glass Co Ltd | Optical glass for mold press molding |
| JP2006016286A (en) * | 2004-07-05 | 2006-01-19 | Hoya Corp | Manufacturing method of glass optical element |
| JP2006111482A (en) * | 2004-10-14 | 2006-04-27 | Konica Minolta Opto Inc | Optical glass and optical element |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011026157A (en) * | 2009-07-23 | 2011-02-10 | Nippon Electric Glass Co Ltd | Optical glass |
| CN102923952A (en) * | 2012-11-23 | 2013-02-13 | 成都光明光电股份有限公司 | Optical glass, glass prefabricated part and optical element |
| CN107473582A (en) * | 2012-11-23 | 2017-12-15 | 成都光明光电股份有限公司 | Optical glass, gas preform and optical element |
| CN112368246A (en) * | 2018-09-28 | 2021-02-12 | 日本山村硝子株式会社 | Optical glass |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200932697A (en) | 2009-08-01 |
| JPWO2009072586A1 (en) | 2011-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2009072335A1 (en) | Optical glass and preforms for precision press molding and optical elements made by using the glass | |
| TW200609193A (en) | Optical glass | |
| EP1468974A3 (en) | Optical glass; press-molding preform and method of manufacturing same; and optical element and method of manufacturing same | |
| TW200637799A (en) | Optical glass | |
| CN101389574B (en) | Optical glass | |
| JP2010180129A5 (en) | ||
| EP2281786A4 (en) | Optical glasses, preforms for precision press molding, optical elements, process for production of them, and imaging devices | |
| TW200702311A (en) | Optical glass | |
| TW200708493A (en) | A glass composition | |
| JP2011093780A5 (en) | ||
| TW200642979A (en) | Optical glass | |
| WO2008156091A1 (en) | Glass composition | |
| JP2010260740A5 (en) | ||
| JP2010248057A5 (en) | ||
| WO2014048295A1 (en) | Optical glass for precision molding, prefabricated glass, optical element and optical instrument | |
| WO2009072586A1 (en) | Optical glass, and preform for fine press molding and optical element each comprising the same | |
| TW200626516A (en) | Optical glass | |
| JP2012092016A5 (en) | ||
| TW200738579A (en) | Matrix glass composition for gradient index rod lens, and gradient index rod lens produced with the composition | |
| JP2019511445A (en) | Optical glass and optical element | |
| TW200633943A (en) | Lead and arsenic free optical hard crown glasses | |
| JP2013028532A5 (en) | ||
| JPH0741334A (en) | Optical glass | |
| WO2005102949A3 (en) | Optical glass | |
| CN101746952A (en) | High refractive index optical spectacle glass |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08858151 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2009544726 Country of ref document: JP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 08858151 Country of ref document: EP Kind code of ref document: A1 |