FR2419916A1 - Nouveaux verres photochromiques - Google Patents
Nouveaux verres photochromiquesInfo
- Publication number
- FR2419916A1 FR2419916A1 FR7906855A FR7906855A FR2419916A1 FR 2419916 A1 FR2419916 A1 FR 2419916A1 FR 7906855 A FR7906855 A FR 7906855A FR 7906855 A FR7906855 A FR 7906855A FR 2419916 A1 FR2419916 A1 FR 2419916A1
- Authority
- FR
- France
- Prior art keywords
- useful
- transmittance
- chemical strengthening
- ophthalmic applications
- li2o
- 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
- 239000011521 glass Substances 0.000 title abstract 4
- 238000003426 chemical strengthening reaction Methods 0.000 title 1
- 238000002834 transmittance Methods 0.000 abstract 4
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 3
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 3
- 230000005855 radiation Effects 0.000 abstract 3
- KOPBYBDAPCDYFK-UHFFFAOYSA-N Cs2O Inorganic materials [O-2].[Cs+].[Cs+] KOPBYBDAPCDYFK-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- AKUNKIJLSDQFLS-UHFFFAOYSA-M dicesium;hydroxide Chemical compound [OH-].[Cs+].[Cs+] AKUNKIJLSDQFLS-UHFFFAOYSA-M 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 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
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 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
- C03C4/00—Compositions for glass with special properties
- C03C4/04—Compositions for glass with special properties for photosensitive glass
- C03C4/06—Compositions for glass with special properties for photosensitive glass for phototropic or photochromic glass
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
L'invention se rapporte aux verres. Elle concerne un verre photochromique transparent dont les propriétés photochromiques sont peu sensibles aux variations de température et dont la transmission optique ne descend pas en dessous de 15 % à - 18 degrés C. La composition d'un tel verre est, en % en poids sur la base des oxydes, 0 à 2,5 % de Li2 O, 0 à 9 % de Na2 O, 0 à 17 % de K 2 O, 0 à 6 % de Cs2 O, 8 à 20 % de Li2 O + Na2 O + K 2 O + Cs2 O, 14 à 23 % de B2 O3 , 5 à 25 % d'A12 O 3 , 0 à 25 % de P2 O5 , 20 à 65 % de SiO 2 0,004 à 0,02 % de CuO, 0,15 à 0,3 % d'Ag, 0,1 à 0,25 % de Cl, et 0,1 à 0,2 % de Br. Utilisation pour la réalisation de verres photochromiques correcteurs ou solaires.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88767778A | 1978-03-17 | 1978-03-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2419916A1 true FR2419916A1 (fr) | 1979-10-12 |
| FR2419916B1 FR2419916B1 (fr) | 1986-04-18 |
Family
ID=25391635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7906855A Expired FR2419916B1 (fr) | 1978-03-17 | 1979-03-19 | Nouveaux verres photochromiques |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2419916B1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2422607A1 (fr) * | 1978-04-12 | 1979-11-09 | Corning Glass Works | Verres photochromiques se pretant a un traitement thermique et a un faconnage simultanes |
| FR2467182A1 (fr) * | 1979-10-12 | 1981-04-17 | Pilkington Brothers Ltd | Verres photochromiques |
| FR2474019A1 (fr) * | 1980-01-21 | 1981-07-24 | Corning Glass Works | Verres photochromiques s'assombrissant en brun contenant du palladium et/ou de l'or |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2256116A1 (fr) * | 1973-12-29 | 1975-07-25 | Hoya Glass Works Ltd | |
| FR2307771A1 (fr) * | 1975-04-14 | 1976-11-12 | Corning Glass Works | Compositions de verre en feuille photochromique et articles realises a partir de telles compositions |
| FR2339578A1 (fr) * | 1976-01-30 | 1977-08-26 | Pilkington Brothers Ltd | Perfectionnements au verre photochrome a borosilicate et cristaux d'halogenure d'argent |
-
1979
- 1979-03-19 FR FR7906855A patent/FR2419916B1/fr not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2256116A1 (fr) * | 1973-12-29 | 1975-07-25 | Hoya Glass Works Ltd | |
| FR2307771A1 (fr) * | 1975-04-14 | 1976-11-12 | Corning Glass Works | Compositions de verre en feuille photochromique et articles realises a partir de telles compositions |
| FR2339578A1 (fr) * | 1976-01-30 | 1977-08-26 | Pilkington Brothers Ltd | Perfectionnements au verre photochrome a borosilicate et cristaux d'halogenure d'argent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2422607A1 (fr) * | 1978-04-12 | 1979-11-09 | Corning Glass Works | Verres photochromiques se pretant a un traitement thermique et a un faconnage simultanes |
| FR2467182A1 (fr) * | 1979-10-12 | 1981-04-17 | Pilkington Brothers Ltd | Verres photochromiques |
| FR2474019A1 (fr) * | 1980-01-21 | 1981-07-24 | Corning Glass Works | Verres photochromiques s'assombrissant en brun contenant du palladium et/ou de l'or |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2419916B1 (fr) | 1986-04-18 |
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