GB508011A - Manufacture of light filter layers - Google Patents

Manufacture of light filter layers

Info

Publication number
GB508011A
GB508011A GB32518/37A GB3251837A GB508011A GB 508011 A GB508011 A GB 508011A GB 32518/37 A GB32518/37 A GB 32518/37A GB 3251837 A GB3251837 A GB 3251837A GB 508011 A GB508011 A GB 508011A
Authority
GB
United Kingdom
Prior art keywords
filters
dyestuff
colour
image
coloured
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
GB32518/37A
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 GB508011A publication Critical patent/GB508011A/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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/02—Sensitometric processes, e.g. determining sensitivity, colour sensitivity, gradation, graininess, density; Making sensitometric wedges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Materials For Photolithography (AREA)
  • Optical Filters (AREA)

Abstract

508,011. Colour filters. I. G. FARBENINDUSTRIE AKT.-GES. Nov. 25, 1937, No. 32518. Convention date, Nov. 26, 1936. [Classes 97 (i) and 98 (ii)] Filters are produced by illuminating with coloured or white light material comprising one or more silver halide emulsion layers containing dyestuff components fast to diffusion, and forming therein, if desired through a patternfilter, a dyestuff image directly or by reversal by colour development or by azo coupling. Any silver image formed may be removed as by Farmer's reducer. There may be so produced uniformly coloured filters, graded or stepped filters, and multi-colour, e.g. strip, filters of uniform or varying strip density. The filter may be on a support as of glass, cellulose or its derivatives, artificial resins, &c. Specifications 430,991, 436,587, 458,400, 465,823, 468,946, 479,838, 481,501, 483,000, 484,698, 488,048, 489,093, 489,161 and 489,274 are referred to. The Specification as open to inspection under Sect. 91 claims broadly the manufacture of filter layers by exposing to white or coloured light material comprising one or more silver halide emulsion layers, and producing a dyestuff image therein directly or by way of a silver image. It refers also (1) to azo coupling processes using emulsion layers containing dyestuff components, (2) to processes wherein dyestuff formers in the emulsions, or dyes formed therefrom, are destroyed, and (3) to the production of multi-colour screens. This subject-matter does not appear in the Specification as accepted.
GB32518/37A 1936-11-26 1937-11-25 Manufacture of light filter layers Expired GB508011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE508011X 1936-11-26

Publications (1)

Publication Number Publication Date
GB508011A true GB508011A (en) 1939-06-26

Family

ID=6546876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32518/37A Expired GB508011A (en) 1936-11-26 1937-11-25 Manufacture of light filter layers

Country Status (1)

Country Link
GB (1) GB508011A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597046A (en) * 1968-09-27 1971-08-03 Sylvania Electric Prod Coated light permeable optical component
GB2246880A (en) * 1990-08-10 1992-02-12 Samsung Electronics Co Ltd A colour filter and a method of manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597046A (en) * 1968-09-27 1971-08-03 Sylvania Electric Prod Coated light permeable optical component
GB2246880A (en) * 1990-08-10 1992-02-12 Samsung Electronics Co Ltd A colour filter and a method of manufacturing the same

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