GB493308A - Improvements relating to colour photography - Google Patents

Improvements relating to colour photography

Info

Publication number
GB493308A
GB493308A GB10019/37A GB1001937A GB493308A GB 493308 A GB493308 A GB 493308A GB 10019/37 A GB10019/37 A GB 10019/37A GB 1001937 A GB1001937 A GB 1001937A GB 493308 A GB493308 A GB 493308A
Authority
GB
United Kingdom
Prior art keywords
colour
layer
filter layer
april
sodium salt
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
Application number
GB10019/37A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB493308A publication Critical patent/GB493308A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Filters (AREA)

Abstract

493,308. Ultra - violet filter for colour photography. I. G. FARBENINDUSTRIE AKT.-GES. April 8, 1937, No. 10019. Convention date, April 29, 1936. [Class 98 (ii)] Colour photographic material has on the surface which is hit first by the incident light, a filter layer which absorbs rays having a wavelength less than 400 mÁ and leaves the visible rays substantially unaffected. Aesculin, quinine, primulin, the urea of the sodium salt of paraminobenzoyl - paraphenylenediaminosulphonic acid, the sodium salt of di-metaaminobenzoyl-diaminostilbene disulphonic acid and Diazo light yellow are compounds to be used with gelatine solution or dry gelatine in forming the filter layer. Multi-layer, multipack, lenticular screen and multi-colour screen materials can all be adapted to include the filter layer in front of the first emulsion layer.
GB10019/37A 1936-04-29 1937-04-08 Improvements relating to colour photography Expired GB493308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE493308X 1936-04-29

Publications (1)

Publication Number Publication Date
GB493308A true GB493308A (en) 1938-10-06

Family

ID=6544542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10019/37A Expired GB493308A (en) 1936-04-29 1937-04-08 Improvements relating to colour photography

Country Status (2)

Country Link
FR (1) FR820690A (en)
GB (1) GB493308A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508295A (en) * 1945-11-08 1950-05-16 Gen Aniline & Film Corp Photographic filter layer for absorbing ultraviolet radiations
US2632701A (en) * 1949-05-04 1953-03-24 Eastman Kodak Co Ultraviolet filter on photographic layers
US2747996A (en) * 1952-10-31 1956-05-29 Eastman Kodak Co Photographic element protected against action of ultraviolet radiation
US2748021A (en) * 1953-06-24 1956-05-29 Eastman Kodak Co Solubilized benzal derivatives of alpha-methyl-alpha-phenyl hydrazines and ultraviolet radiation absorbing products thereof
DE972067C (en) * 1941-02-18 1959-05-14 Agfa Ag Process for increasing the whiteness of photographic reflective images

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196636B (en) * 1961-07-13 1965-07-15 Diamond Alkali Co Process for the continuous production of terephthalic acid dichloride or isophthalic acid dichloride or mixtures thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972067C (en) * 1941-02-18 1959-05-14 Agfa Ag Process for increasing the whiteness of photographic reflective images
US2508295A (en) * 1945-11-08 1950-05-16 Gen Aniline & Film Corp Photographic filter layer for absorbing ultraviolet radiations
US2632701A (en) * 1949-05-04 1953-03-24 Eastman Kodak Co Ultraviolet filter on photographic layers
US2747996A (en) * 1952-10-31 1956-05-29 Eastman Kodak Co Photographic element protected against action of ultraviolet radiation
US2748021A (en) * 1953-06-24 1956-05-29 Eastman Kodak Co Solubilized benzal derivatives of alpha-methyl-alpha-phenyl hydrazines and ultraviolet radiation absorbing products thereof

Also Published As

Publication number Publication date
FR820690A (en) 1937-11-16

Similar Documents

Publication Publication Date Title
US2305693A (en) Process of making photographs
GB493308A (en) Improvements relating to colour photography
GB382483A (en) Improvements in or relating to the manufacture of light-sensitive layers
GB504283A (en) Improvements in or relating to light-sensitive or image-bearing layers
GB479446A (en) Improvements relating to photographic developing agents
GB507152A (en) Light-sensitive multilayer photographic material
GB492795A (en) Improvements in or relating to photographic printing material
GB517416A (en) Improvements in and relating to the photographic reproduction of coloured objects
GB501190A (en) Improvements relating to the production of subtractive colour photographs
GB524379A (en) Method and materials for absorbing short-wave light
GB511281A (en) Improvements in multi-colour photographic transparencies
GB517193A (en) Improvements in anti-halation layers for photographic multi-layer sensitive material
DE851721C (en) Method and material for the production of multicolored images with the aid of a three-pack negative material, the topmost layer of which can be peeled off and which is copied separately from the two layers below
DE674190C (en) Process for making photographic copies by means of short-wave ultraviolet rays
AT160298B (en) Process for the production of multicolor photographic images.
AT221366B (en) Method of copying a color photographic image
SU33810A1 (en) A method of making two-sided photographic paper
GB418976A (en) Improvements in and relating to the treatment of papers and fabrics for use in photographic printing
DE878888C (en) Process for making fluoroscopic copies
GB507485A (en) Photographic light-sensitive material for colour photography
GB490844A (en) Photographic material for colour pictures
GB515838A (en) Improvements relating to the photographic development of silver halide layers
GB521961A (en) Improvements in light-sensitive materials and processes of colour photography
GB520076A (en) Improvements in multi-layer colour photography
GB527005A (en) Improvements relating to the production of filters for use in photography