BE475565A - - Google Patents
Info
- Publication number
- BE475565A BE475565A BE475565DA BE475565A BE 475565 A BE475565 A BE 475565A BE 475565D A BE475565D A BE 475565DA BE 475565 A BE475565 A BE 475565A
- Authority
- BE
- Belgium
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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S501/00—Compositions: ceramic
- Y10S501/90—Optical glass, e.g. silent on refractive index and/or ABBE number
- Y10S501/903—Optical glass, e.g. silent on refractive index and/or ABBE number having refractive index less than 1.8 and ABBE number less than 70
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 |
|---|---|---|---|
| US689530A US2466510A (en) | 1946-08-09 | 1946-08-09 | Borate optical glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE475565A true BE475565A (ja) |
Family
ID=24768859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE475565D BE475565A (ja) | 1946-08-09 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2466510A (ja) |
| BE (1) | BE475565A (ja) |
| FR (1) | FR951835A (ja) |
| GB (1) | GB634684A (ja) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE949686C (de) * | 1951-02-26 | 1956-09-27 | Jenaer Glaswerk Schott & Gen | Praktisch fluorfreie optische Boratglaeser |
| DE957338C (de) * | 1952-05-10 | 1957-03-07 | Jenaer Glaswerk Schott & Gen | Praktisch fluorfreie optische Glaeser |
| US3081178A (en) * | 1959-08-10 | 1963-03-12 | Leitz Ernst Gmbh | Optical borate glass |
| DE1259027B (de) * | 1964-09-23 | 1968-01-18 | Leitz Ernst Gmbh | Glas, insbesondere als Werkstoff fuer optische Elemente |
| JP3196952B2 (ja) * | 1993-06-08 | 2001-08-06 | キヤノン株式会社 | 光学ガラス素子およびその製造方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE468457A (ja) * | 1939-07-12 | |||
| GB579832A (en) * | 1943-11-11 | 1946-08-16 | Chance Brothers Ltd | Improvements relating to optical glasses |
-
0
- BE BE475565D patent/BE475565A/xx unknown
-
1946
- 1946-08-09 US US689530A patent/US2466510A/en not_active Expired - Lifetime
-
1947
- 1947-08-08 GB GB21970/47A patent/GB634684A/en not_active Expired
- 1947-08-08 FR FR951835D patent/FR951835A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2466510A (en) | 1949-04-05 |
| GB634684A (en) | 1950-03-22 |
| FR951835A (fr) | 1949-11-04 |