GB1418089A - Photochromic optical elements - Google Patents
Photochromic optical elementsInfo
- Publication number
- GB1418089A GB1418089A GB4529973A GB4529973A GB1418089A GB 1418089 A GB1418089 A GB 1418089A GB 4529973 A GB4529973 A GB 4529973A GB 4529973 A GB4529973 A GB 4529973A GB 1418089 A GB1418089 A GB 1418089A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen
- solution
- photochromic
- synthetic plastics
- plastics
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
- C08K5/3417—Five-membered rings condensed with carbocyclic rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00634—Production of filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/23—Photochromic filters
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Eyeglasses (AREA)
- Optical Filters (AREA)
Abstract
1418089 Addition polymers &c. AMERICAN OPTICAL CORP 27 Sept 1973 [1 Dec 1972] 45299/73 Heading C3P [Also in Division C4] A photochromic optical element comprises a synthetic plastics element incorporating photochromic indolino, spiropyrans wherein R 1 is hydrogen or a halogen atom and R 2 and R 3 , which may be the same or different, occupy the 5, 6, 7 or 8 positions and are hydrogen, halogen, nitro or alkoxy having up to 3 carbons atoms, at least one of R 2 and R 3 not being hydrogen and which on activation by U.V. light, becomes coloured, the element being produced by immersing the synthetic plastics element in a solution of the spiropyran. The solution may be saturated, is heated to boiling, maintained for 24 hrs., the element removed, washed and dried. The plastics may be polycarbonates (e.g. poly(allyl diglycol carbonate)), hydroxylated polyethylene, polymethylacrylates, (e.g. polymethyl methacrylates), polyethylacrylates, polybutylacrylates and may include additives such as plasticizers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31118872A | 1972-12-01 | 1972-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1418089A true GB1418089A (en) | 1975-12-17 |
Family
ID=23205794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4529973A Expired GB1418089A (en) | 1972-12-01 | 1973-09-27 | Photochromic optical elements |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4989551A (en) |
| AR (1) | AR198117A1 (en) |
| AT (1) | ATA897573A (en) |
| AU (1) | AU6133373A (en) |
| BR (1) | BR7309247D0 (en) |
| DE (1) | DE2347018A1 (en) |
| FR (1) | FR2211666A1 (en) |
| GB (1) | GB1418089A (en) |
| IL (1) | IL43211A0 (en) |
| IT (1) | IT997765B (en) |
| NL (1) | NL7316400A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286957A (en) | 1979-01-10 | 1981-09-01 | Essilor International "Cie Generale D'optique" | Process of integrating a photochromic substance into an ophthalmic lens and a photochromic lens of organic material |
| US4931220A (en) * | 1987-11-24 | 1990-06-05 | Ppg Industries, Inc. | Organic photochromic pigment particulates |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5393246U (en) * | 1976-12-28 | 1978-07-29 | ||
| FR2415318A1 (en) * | 1978-01-18 | 1979-08-17 | Essilor Int | PROCESS FOR THE INTEGRATION OF A PHOTOCHROMIC SUBSTANCE INTO A BASE SUBSTRATE TRANSLUCENT IN ORGANIC MATTER, AND BASIC TRANSPARENT SUBSTRATE |
| JPS5582623U (en) * | 1978-11-01 | 1980-06-07 |
-
1973
- 1973-09-12 IL IL43211A patent/IL43211A0/en unknown
- 1973-09-15 DE DE19732347018 patent/DE2347018A1/en active Pending
- 1973-09-20 AR AR250193A patent/AR198117A1/en active
- 1973-09-27 GB GB4529973A patent/GB1418089A/en not_active Expired
- 1973-10-12 AU AU61333/73A patent/AU6133373A/en not_active Expired
- 1973-10-16 IT IT53158/73A patent/IT997765B/en active
- 1973-10-23 AT AT897573A patent/ATA897573A/en not_active Application Discontinuation
- 1973-11-26 BR BR9247/73A patent/BR7309247D0/en unknown
- 1973-11-29 FR FR7343536A patent/FR2211666A1/fr not_active Withdrawn
- 1973-11-30 NL NL7316400A patent/NL7316400A/xx unknown
- 1973-11-30 JP JP48133642A patent/JPS4989551A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286957A (en) | 1979-01-10 | 1981-09-01 | Essilor International "Cie Generale D'optique" | Process of integrating a photochromic substance into an ophthalmic lens and a photochromic lens of organic material |
| US4931220A (en) * | 1987-11-24 | 1990-06-05 | Ppg Industries, Inc. | Organic photochromic pigment particulates |
Also Published As
| Publication number | Publication date |
|---|---|
| AU6133373A (en) | 1975-04-17 |
| ATA897573A (en) | 1976-07-15 |
| IT997765B (en) | 1975-12-30 |
| DE2347018A1 (en) | 1974-06-06 |
| FR2211666A1 (en) | 1974-07-19 |
| AR198117A1 (en) | 1974-05-31 |
| BR7309247D0 (en) | 1974-08-29 |
| NL7316400A (en) | 1974-06-05 |
| IL43211A0 (en) | 1973-11-28 |
| JPS4989551A (en) | 1974-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |