GB2318576B - Lead-free optical light flint and double-light flint glasses - Google Patents
Lead-free optical light flint and double-light flint glassesInfo
- Publication number
- GB2318576B GB2318576B GB9720752A GB9720752A GB2318576B GB 2318576 B GB2318576 B GB 2318576B GB 9720752 A GB9720752 A GB 9720752A GB 9720752 A GB9720752 A GB 9720752A GB 2318576 B GB2318576 B GB 2318576B
- Authority
- GB
- United Kingdom
- Prior art keywords
- light flint
- double
- lead
- free optical
- glasses
- 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 - Fee Related
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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen
- C03C3/112—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine
- C03C3/115—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron
- C03C3/118—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron containing aluminium
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996144736 DE19644736C1 (en) | 1996-10-28 | 1996-10-28 | Light flint glass composition used in optical applications |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9720752D0 GB9720752D0 (en) | 1997-12-03 |
GB2318576A GB2318576A (en) | 1998-04-29 |
GB2318576B true GB2318576B (en) | 2000-03-15 |
Family
ID=7810197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9720752A Expired - Fee Related GB2318576B (en) | 1996-10-28 | 1997-10-01 | Lead-free optical light flint and double-light flint glasses |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP3073474B2 (en) |
CN (1) | CN1171817C (en) |
DE (1) | DE19644736C1 (en) |
FR (1) | FR2755125B1 (en) |
GB (1) | GB2318576B (en) |
MY (1) | MY122044A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104445928B (en) * | 2014-11-11 | 2018-10-26 | 湖北新华光信息材料有限公司 | A kind of light flint |
CA3117892A1 (en) | 2018-11-26 | 2020-06-04 | Owens Corning Intellectual Capital, Llc | High performance fiberglass composition with improved elastic modulus |
KR20210096138A (en) | 2018-11-26 | 2021-08-04 | 오웬스 코닝 인텔렉츄얼 캐피탈 엘엘씨 | High-performance fiber glass composition with improved specific modulus |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE973350C (en) * | 1940-06-10 | 1960-01-28 | Jenaer Glaswerk Schott & Gen | Optical silicate glasses with a refractive index that is low in relation to the mean dispersion or the ª † value |
JPH01133956A (en) * | 1987-11-20 | 1989-05-26 | Canon Inc | Glass composition for distributed refractive index lens |
JP2795326B2 (en) * | 1991-04-05 | 1998-09-10 | 株式会社オハラ | Optical glass |
JP2908604B2 (en) * | 1991-04-09 | 1999-06-21 | 株式会社オハラ | Optical glass |
US5320985A (en) * | 1992-10-01 | 1994-06-14 | Kabushiki Kaisha Ohara | Low refractive optical glass of a flint glass type |
DE4402537C2 (en) * | 1994-01-28 | 1996-07-25 | Schott Glaswerke | Lead-free optical heavy flint glass |
-
1996
- 1996-10-28 DE DE1996144736 patent/DE19644736C1/en not_active Expired - Fee Related
-
1997
- 1997-10-01 GB GB9720752A patent/GB2318576B/en not_active Expired - Fee Related
- 1997-10-07 FR FR9712457A patent/FR2755125B1/en not_active Expired - Fee Related
- 1997-10-20 JP JP09303332A patent/JP3073474B2/en not_active Expired - Fee Related
- 1997-10-27 CN CNB971215731A patent/CN1171817C/en not_active Expired - Fee Related
- 1997-10-27 MY MYPI9705068 patent/MY122044A/en unknown
Also Published As
Publication number | Publication date |
---|---|
JPH10139473A (en) | 1998-05-26 |
FR2755125A1 (en) | 1998-04-30 |
JP3073474B2 (en) | 2000-08-07 |
GB9720752D0 (en) | 1997-12-03 |
FR2755125B1 (en) | 2000-01-07 |
GB2318576A (en) | 1998-04-29 |
MY122044A (en) | 2006-03-31 |
DE19644736C1 (en) | 1997-11-27 |
CN1171817C (en) | 2004-10-20 |
CN1182721A (en) | 1998-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20051001 |