GB520076A - Improvements in multi-layer colour photography - Google Patents

Improvements in multi-layer colour photography

Info

Publication number
GB520076A
GB520076A GB2383338A GB2383338A GB520076A GB 520076 A GB520076 A GB 520076A GB 2383338 A GB2383338 A GB 2383338A GB 2383338 A GB2383338 A GB 2383338A GB 520076 A GB520076 A GB 520076A
Authority
GB
United Kingdom
Prior art keywords
light
ultra
layer
violet
specifications
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
GB2383338A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Priority to GB2383338A priority Critical patent/GB520076A/en
Priority to FR859033D priority patent/FR859033A/en
Publication of GB520076A publication Critical patent/GB520076A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

520,076. Colour photography. KODAK, Ltd., and JELLEY, E. E. Aug. 12, 1938, No. 23833. [Class 98 (ii)] In a process for the production of coloured images in multi-layer colour photographic material wherein light sensitive silver salt images in the layers have to be selectively exposed, the light sensitive salt in an outer layer or in both outer layers is exposed with the aid of ultraviolet light having a wavelength wholly within the range which the emulsion binder, e.g., gelatine is capable of absorbing. The ultra-violet light may be obtained by filtering light from a line or continuous source through a filter, which may consist of an ultra-violet transmitting solid distributed in an ultra-violet transmitting medium, the dispersions of solid and liquid being different but their refractive indices for the selected wavelength may be the same, and, whose temperature may be controlled. The method may replace the exposure to red light of the lower layer described in example 1 of Specification 500,826, and the exposure to coloured light of the lower layer of a three-layer element, after removal of the negative silver, as described in Specification 501,000, or may be applied to the process of Specifications 501,002, Specifications 440,032 and 500,717 also are referred to.
GB2383338A 1938-08-12 1938-08-12 Improvements in multi-layer colour photography Expired GB520076A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2383338A GB520076A (en) 1938-08-12 1938-08-12 Improvements in multi-layer colour photography
FR859033D FR859033A (en) 1938-08-12 1939-08-12 Improvements in color photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2383338A GB520076A (en) 1938-08-12 1938-08-12 Improvements in multi-layer colour photography

Publications (1)

Publication Number Publication Date
GB520076A true GB520076A (en) 1940-04-15

Family

ID=10202047

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2383338A Expired GB520076A (en) 1938-08-12 1938-08-12 Improvements in multi-layer colour photography

Country Status (2)

Country Link
FR (1) FR859033A (en)
GB (1) GB520076A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592864A (en) * 1945-11-28 1952-04-15 Dufay Chromex Ltd Color photography

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2960722B1 (en) 2010-05-26 2013-03-08 Sagem Defense Securite POWER COUPLER / LOW FREQUENCY FLOW CANCELLATION DATA

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592864A (en) * 1945-11-28 1952-04-15 Dufay Chromex Ltd Color photography

Also Published As

Publication number Publication date
FR859033A (en) 1940-12-09

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