GB1388684A - Coloured sheet material suitable as photographic light filters and leader films - Google Patents
Coloured sheet material suitable as photographic light filters and leader filmsInfo
- Publication number
- GB1388684A GB1388684A GB672671A GB672671A GB1388684A GB 1388684 A GB1388684 A GB 1388684A GB 672671 A GB672671 A GB 672671A GB 672671 A GB672671 A GB 672671A GB 1388684 A GB1388684 A GB 1388684A
- Authority
- GB
- United Kingdom
- Prior art keywords
- binder
- polyethylene terephthalate
- dye
- light filters
- films
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
-
- 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
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
- G03C1/835—Macromolecular substances therefor, e.g. mordants
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Laminated Bodies (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Abstract
1388684 Light filters AGFA-GEVAERT 28 Feb 1972 [12 March 1971] 6726/71 Heading B2E [Also in Division G2] A light filter comprises a support of hydrophobic film coated on at least one side with a yellow pyroxolinone dye dispersed in an optionally alkylated melamine-formaldehyde resin binder. The support is a cellulose ester, polystyrol, polycarbonate or a high molecular weight homer polyester e.g. biaxially oriented polyethylene terephthalate. Other polyesters and copolyesters of phthalic, isophthalic, sebacic and adipic acids with ethylene and neopentyl glycol and 1, 4-di (hydroxymethyl) cyclohexane are mentioned. A subbing coating to assist adhesion of the light-absorbing coating may be applied. The material may be used in sun glasses, light filters or photographic binder films. The sub-coating may comprise vinyl chloride/vinylidene chloride/n-butyl acrylate/itaconic acid copolymer optionally containing dispersed silica and be applied as a dispersion. In Examples (1 & 2) polyethylene terephthalate films subcoated, and the dye binder layer applied as a solution, contains phenyl trichlorosilane, (3) one side of a polyethylene terephthalate is film coated similarly to example 1, the reverse side being coated by solution with an antistatic layer comprising styrene/maleic acid monosodium salt copolymer and vinyl chloride/vinyl acetate copolymer, and (4) a cellulose triacetate or polystyrene film is coated directly with a dye/binder solution.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB672671A GB1388684A (en) | 1971-03-12 | 1971-03-12 | Coloured sheet material suitable as photographic light filters and leader films |
FR7206011A FR2128347B3 (en) | 1971-03-12 | 1972-02-22 | |
BE779643A BE779643A (en) | 1971-03-12 | 1972-02-22 | SHEET MATERIAL FOR USE IN LIGHT FILTERS AND STARTING STRIPS |
DE19722209957 DE2209957A1 (en) | 1971-03-12 | 1972-03-02 | Scratch-resistant and wet-insensitive, colored sheet materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB672671A GB1388684A (en) | 1971-03-12 | 1971-03-12 | Coloured sheet material suitable as photographic light filters and leader films |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1388684A true GB1388684A (en) | 1975-03-26 |
Family
ID=9819659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB672671A Expired GB1388684A (en) | 1971-03-12 | 1971-03-12 | Coloured sheet material suitable as photographic light filters and leader films |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE779643A (en) |
DE (1) | DE2209957A1 (en) |
FR (1) | FR2128347B3 (en) |
GB (1) | GB1388684A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0131473A2 (en) * | 1983-07-12 | 1985-01-16 | Kiyoshi Nagai | Composite filter and the use of such a filter |
GB2552806A (en) * | 2016-08-10 | 2018-02-14 | Sumitomo Chemical Co | Light filter and sensor |
-
1971
- 1971-03-12 GB GB672671A patent/GB1388684A/en not_active Expired
-
1972
- 1972-02-22 BE BE779643A patent/BE779643A/en unknown
- 1972-02-22 FR FR7206011A patent/FR2128347B3/fr not_active Expired
- 1972-03-02 DE DE19722209957 patent/DE2209957A1/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0131473A2 (en) * | 1983-07-12 | 1985-01-16 | Kiyoshi Nagai | Composite filter and the use of such a filter |
EP0131473A3 (en) * | 1983-07-12 | 1987-09-16 | Kiyoshi Nagai | Composite filter, observation system and filamentary display device |
GB2552806A (en) * | 2016-08-10 | 2018-02-14 | Sumitomo Chemical Co | Light filter and sensor |
WO2018029014A1 (en) * | 2016-08-10 | 2018-02-15 | Cambridge Display Technology Limited | Light filter and sensor |
CN109564162A (en) * | 2016-08-10 | 2019-04-02 | 剑桥显示技术有限公司 | Light filtering body and sensor |
Also Published As
Publication number | Publication date |
---|---|
FR2128347A3 (en) | 1972-10-20 |
BE779643A (en) | 1972-08-22 |
FR2128347B3 (en) | 1974-06-07 |
DE2209957A1 (en) | 1972-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PCNP | Patent ceased through non-payment of renewal fee |