IT8367587A0 - Vetro fototropico eventualmente per lenti di occhiali - Google Patents
Vetro fototropico eventualmente per lenti di occhialiInfo
- Publication number
- IT8367587A0 IT8367587A0 IT8367587A IT6758783A IT8367587A0 IT 8367587 A0 IT8367587 A0 IT 8367587A0 IT 8367587 A IT8367587 A IT 8367587A IT 6758783 A IT6758783 A IT 6758783A IT 8367587 A0 IT8367587 A0 IT 8367587A0
- Authority
- IT
- Italy
- Prior art keywords
- glass
- possibly
- phototropic
- lenses
- glass lenses
- Prior art date
Links
- 239000011521 glass Substances 0.000 title 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
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- 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
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823220367 DE3220367A1 (de) | 1982-05-29 | 1982-05-29 | Phototropes glas mit brauntoenung im belichteten zustand |
Publications (1)
Publication Number | Publication Date |
---|---|
IT8367587A0 true IT8367587A0 (it) | 1983-05-26 |
Family
ID=6164862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8367587A IT8367587A0 (it) | 1982-05-29 | 1983-05-26 | Vetro fototropico eventualmente per lenti di occhiali |
Country Status (6)
Country | Link |
---|---|
US (1) | US4485178A (it) |
JP (1) | JPS58213651A (it) |
DE (1) | DE3220367A1 (it) |
FR (1) | FR2527586B1 (it) |
GB (1) | GB2121027B (it) |
IT (1) | IT8367587A0 (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3206958C2 (de) * | 1982-02-26 | 1986-09-18 | Schott Glaswerke, 6500 Mainz | Phototropes Glas mit einem Brechungsindex ≥ 1,59, einer Abbezahl ≥ 44 und einer Dichte ≦ 3,0 g/cm↑3↑ |
US4550087A (en) * | 1984-09-13 | 1985-10-29 | Corning Glass Works | Photochromic comfort glasses |
WO2018111954A1 (en) * | 2016-12-16 | 2018-06-21 | Corning Incorporated | Holmium-based contrast enhancing uv blocking glass compositions |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2085970A1 (en) * | 1970-04-10 | 1971-12-31 | Jenaer Glaswerk Schott & Gen | Photochromatic colour glass with borosili-ca |
US3902909A (en) * | 1970-12-10 | 1975-09-02 | Jenaer Glaswerk Schott & Gen | Phototropic material and a method for its production |
GB1274780A (en) * | 1970-12-11 | 1972-05-17 | Jenaer Glas Schott Gen Veb | Coloured glass exhibiting phototropic properties |
GB1275019A (en) * | 1970-12-18 | 1972-05-24 | Jenaer Glas Schott Gen Veb | Photochromatic borate glass without silicon dioxide |
DE2500317A1 (de) * | 1974-01-17 | 1975-07-24 | South African Inventions | Photochromes glas |
US4043781A (en) * | 1974-11-04 | 1977-08-23 | Corning Glass Works | Method for making a brown photochromic glass |
US4035527A (en) * | 1974-11-29 | 1977-07-12 | American Optical Corporation | Method of providing a phototropic layer on a carrier |
US3923529A (en) * | 1975-01-10 | 1975-12-02 | Corning Glass Works | Sodalite-related glass compositions for production of photochromic and fluorescent articles |
US4036624A (en) * | 1975-10-22 | 1977-07-19 | American Optical Corporation | Heat treatment method for making photochromic gradient lenses |
FR2289458A1 (fr) * | 1975-11-03 | 1976-05-28 | Corning Glass Works | Procede de fabrication de verre photochromique |
DE2703100A1 (de) * | 1976-02-10 | 1977-08-18 | American Optical Corp | Verfahren zum herstellen von linsen mit ophthalmischer qualitaet, die einen progressiven, oertlichen gradienten der photochromen oder phototropen verhaltensweise zeigen |
US4190451A (en) * | 1978-03-17 | 1980-02-26 | Corning Glass Works | Photochromic glass |
BR8004828A (pt) * | 1979-08-09 | 1981-02-10 | Pilkington Brothers Ltd | Processo para produzir um vidro fotocromico e vidro fotocromico obtido |
US4251278A (en) * | 1980-01-21 | 1981-02-17 | Corning Glass Works | Photochromic glasses which darken to a brown hue |
US4358542A (en) * | 1981-04-08 | 1982-11-09 | Corning Glass Works | Photochromic glass suitable for microsheet and simultaneous heat treatment and shaping |
-
1982
- 1982-05-29 DE DE19823220367 patent/DE3220367A1/de not_active Withdrawn
-
1983
- 1983-05-20 GB GB08313985A patent/GB2121027B/en not_active Expired
- 1983-05-24 JP JP58091412A patent/JPS58213651A/ja active Pending
- 1983-05-25 FR FR8308582A patent/FR2527586B1/fr not_active Expired
- 1983-05-26 IT IT8367587A patent/IT8367587A0/it unknown
- 1983-05-31 US US06/499,684 patent/US4485178A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2121027B (en) | 1986-11-05 |
GB8313985D0 (en) | 1983-06-29 |
FR2527586A1 (fr) | 1983-12-02 |
FR2527586B1 (fr) | 1986-07-11 |
GB2121027A (en) | 1983-12-14 |
JPS58213651A (ja) | 1983-12-12 |
DE3220367A1 (de) | 1983-12-01 |
US4485178A (en) | 1984-11-27 |
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