JPH0425218B2 - - Google Patents
Info
- Publication number
- JPH0425218B2 JPH0425218B2 JP6665885A JP6665885A JPH0425218B2 JP H0425218 B2 JPH0425218 B2 JP H0425218B2 JP 6665885 A JP6665885 A JP 6665885A JP 6665885 A JP6665885 A JP 6665885A JP H0425218 B2 JPH0425218 B2 JP H0425218B2
- Authority
- JP
- Japan
- Prior art keywords
- optical glass
- present
- refractive index
- exceeds
- special
- 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
Links
- 239000005304 optical glass Substances 0.000 claims description 10
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 2
- 230000003254 anti-foaming effect Effects 0.000 description 2
- 238000004031 devitrification Methods 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6665885A JPS61227939A (ja) | 1985-04-01 | 1985-04-01 | 特殊硼珪クラウン光学硝子 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6665885A JPS61227939A (ja) | 1985-04-01 | 1985-04-01 | 特殊硼珪クラウン光学硝子 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61227939A JPS61227939A (ja) | 1986-10-11 |
| JPH0425218B2 true JPH0425218B2 (cs) | 1992-04-30 |
Family
ID=13322216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6665885A Granted JPS61227939A (ja) | 1985-04-01 | 1985-04-01 | 特殊硼珪クラウン光学硝子 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61227939A (cs) |
-
1985
- 1985-04-01 JP JP6665885A patent/JPS61227939A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61227939A (ja) | 1986-10-11 |
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