ES450600A1 - Photochromic glass articles - Google Patents
Photochromic glass articlesInfo
- Publication number
- ES450600A1 ES450600A1 ES450600A ES450600A ES450600A1 ES 450600 A1 ES450600 A1 ES 450600A1 ES 450600 A ES450600 A ES 450600A ES 450600 A ES450600 A ES 450600A ES 450600 A1 ES450600 A1 ES 450600A1
- Authority
- ES
- Spain
- Prior art keywords
- heat treatment
- silver
- lens
- glass
- silver halide
- 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
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
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/102—Photochromic filters
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Glass Compositions (AREA)
- Eyeglasses (AREA)
- Surface Treatment Of Glass (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
Method for manufacturing ophthalmic quality glass lenses having a local progressive variation of photochromic or phototropic behavior from an edge to a separate area thereof consisting in: preparing an oxide glass body from a mass of glass making, said body containing in its volume at least 0.005% by volume of at least one silver halide chosen from the group consisting of silver chloride, silver bromide and silver iodide and mixtures of these elements, subjecting said article of glass to a heat treatment, said heat treatment consisting in subjecting a zone of said lens to a temperature above the point of deformation, but below the point of softening for a period of time sufficient to form silver halide particles with an average linear dimension of about 50 nm, to vary substantially the temperature of the heat treatment through of said lens from said edge to said zone separated from it, in such a way that silver halide particles with a progressively smaller average linear dimension are formed in order to obtain a lens characterized by a local variation of its phototropic and photochromic behavior . (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62468875A | 1975-10-22 | 1975-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES450600A1 true ES450600A1 (en) | 1978-01-16 |
Family
ID=24502936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES450600A Expired ES450600A1 (en) | 1975-10-22 | 1976-08-10 | Photochromic glass articles |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS595538B2 (en) |
| BE (1) | BE841167A (en) |
| BR (1) | BR7604007A (en) |
| CA (1) | CA1061618A (en) |
| DE (1) | DE2617665C2 (en) |
| ES (1) | ES450600A1 (en) |
| FR (1) | FR2328668A1 (en) |
| GB (1) | GB1548744A (en) |
| IT (1) | IT1058165B (en) |
| MX (1) | MX143311A (en) |
| NL (1) | NL182395C (en) |
| SE (1) | SE425032B (en) |
| ZA (1) | ZA762173B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4160655A (en) * | 1977-12-19 | 1979-07-10 | Corning Glass Works | Process for making gradient photochromic glass articles |
| JPH041837U (en) * | 1990-04-17 | 1992-01-09 | ||
| JP2003231413A (en) * | 2002-07-22 | 2003-08-19 | Akiyoshi Sugimoto | Car |
| FR2923917B1 (en) * | 2007-11-16 | 2010-11-26 | Christian Dalloz Sunoptics | NOVEL TRANSPARENT OPTICAL SUBSTRATE, ITS OBTAINING METHOD AND ITS APPLICATION AS EYE |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2770922A (en) * | 1952-05-19 | 1956-11-20 | Pittsburgh Plate Glass Co | Radiation colorable chromium glass |
| US3419370A (en) * | 1965-11-22 | 1968-12-31 | Corning Glass Works | Method of producing a photochromic glass and resulting article |
-
1976
- 1976-04-12 ZA ZA762173A patent/ZA762173B/en unknown
- 1976-04-20 SE SE7604520A patent/SE425032B/en not_active IP Right Cessation
- 1976-04-20 IT IT49092/76A patent/IT1058165B/en active
- 1976-04-22 DE DE2617665A patent/DE2617665C2/en not_active Expired
- 1976-04-26 CA CA251,044A patent/CA1061618A/en not_active Expired
- 1976-04-27 BE BE166487A patent/BE841167A/en not_active IP Right Cessation
- 1976-04-28 JP JP51047928A patent/JPS595538B2/en not_active Expired
- 1976-04-28 GB GB17372/76A patent/GB1548744A/en not_active Expired
- 1976-05-03 MX MX164537A patent/MX143311A/en unknown
- 1976-05-04 FR FR7613214A patent/FR2328668A1/en active Granted
- 1976-05-20 NL NLAANVRAGE7605399,A patent/NL182395C/en not_active IP Right Cessation
- 1976-06-22 BR BR7604007A patent/BR7604007A/en unknown
- 1976-08-10 ES ES450600A patent/ES450600A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7605399A (en) | 1977-04-26 |
| SE425032B (en) | 1982-08-23 |
| JPS595538B2 (en) | 1984-02-06 |
| IT1058165B (en) | 1982-04-10 |
| JPS5251412A (en) | 1977-04-25 |
| FR2328668A1 (en) | 1977-05-20 |
| DE2617665C2 (en) | 1987-01-22 |
| GB1548744A (en) | 1979-07-18 |
| BR7604007A (en) | 1977-06-28 |
| DE2617665A1 (en) | 1977-04-28 |
| MX143311A (en) | 1981-04-14 |
| CA1061618A (en) | 1979-09-04 |
| NL182395C (en) | 1988-03-01 |
| ZA762173B (en) | 1977-04-27 |
| SE7604520L (en) | 1977-04-23 |
| NL182395B (en) | 1987-10-01 |
| BE841167A (en) | 1976-08-16 |
| FR2328668B1 (en) | 1979-04-20 |
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