FR2220810A1 - Direct reproduction of original colour print - by exposing photographic print paper to light reflected from original - Google Patents

Direct reproduction of original colour print - by exposing photographic print paper to light reflected from original

Info

Publication number
FR2220810A1
FR2220810A1 FR7308432A FR7308432A FR2220810A1 FR 2220810 A1 FR2220810 A1 FR 2220810A1 FR 7308432 A FR7308432 A FR 7308432A FR 7308432 A FR7308432 A FR 7308432A FR 2220810 A1 FR2220810 A1 FR 2220810A1
Authority
FR
France
Prior art keywords
original
pref
colour print
light reflected
photographic paper
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.)
Granted
Application number
FR7308432A
Other languages
French (fr)
Other versions
FR2220810B1 (en
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 Pathe SA
Original Assignee
Kodak Pathe SA
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 Pathe SA filed Critical Kodak Pathe SA
Priority to FR7308432A priority Critical patent/FR2220810A1/en
Publication of FR2220810A1 publication Critical patent/FR2220810A1/en
Application granted granted Critical
Publication of FR2220810B1 publication Critical patent/FR2220810B1/fr
Granted 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
    • G03C7/3041—Materials with specific sensitometric characteristics, e.g. gamma, density

Abstract

An original colour print is illuminated with white light and the light reflected from the original is focussed onto a photographic paper having three photosensitive halide (pref. silver halide) layers sensitive resp. to red, green, and blue light. Each photosensitive layer has a contrast factor of 1.30-1.70 (mean pref. 1.50) above an absolute density of 0.80 and a contrast factor of 0.80-1.20 (mean pref. 1.00) below this absolute density. After exposure the photographic paper is reversal developed to produce a colour print which is a copy of the original. Pref. the intensity of illumination of the original is 30,000-100,000 lux secs and the rating of the photographic paper is 10-20 ASA. Where the rating is 10 ASA the exposure time is pref. about 1 sec. An original colour print can be directly reproduced without using a negative.
FR7308432A 1973-03-09 1973-03-09 Direct reproduction of original colour print - by exposing photographic print paper to light reflected from original Granted FR2220810A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7308432A FR2220810A1 (en) 1973-03-09 1973-03-09 Direct reproduction of original colour print - by exposing photographic print paper to light reflected from original

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7308432A FR2220810A1 (en) 1973-03-09 1973-03-09 Direct reproduction of original colour print - by exposing photographic print paper to light reflected from original

Publications (2)

Publication Number Publication Date
FR2220810A1 true FR2220810A1 (en) 1974-10-04
FR2220810B1 FR2220810B1 (en) 1976-11-05

Family

ID=9116024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7308432A Granted FR2220810A1 (en) 1973-03-09 1973-03-09 Direct reproduction of original colour print - by exposing photographic print paper to light reflected from original

Country Status (1)

Country Link
FR (1) FR2220810A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664400A1 (en) * 1990-07-04 1992-01-10 Kodak Pathe INVERSIBLE PRODUCT FOR COLOR PHOTOGRAPHY.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR827169A (en) * 1936-09-30 1938-04-20 Ig Farbenindustrie Ag Multi-layered photographic material for color photography and cinematography
FR894052A (en) * 1942-04-18 1944-12-13 Ig Farbenindustrie Ag A method of producing color subtractive positive photographic images
FR899723A (en) * 1942-11-14 1945-06-08 Ig Farbenindustrie Ag Method for producing halftone reproductions from originals in black and white and / or in color
FR2003842A1 (en) * 1968-03-13 1969-11-14 Agfa Gevaert Nv

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR827169A (en) * 1936-09-30 1938-04-20 Ig Farbenindustrie Ag Multi-layered photographic material for color photography and cinematography
FR894052A (en) * 1942-04-18 1944-12-13 Ig Farbenindustrie Ag A method of producing color subtractive positive photographic images
FR899723A (en) * 1942-11-14 1945-06-08 Ig Farbenindustrie Ag Method for producing halftone reproductions from originals in black and white and / or in color
FR2003842A1 (en) * 1968-03-13 1969-11-14 Agfa Gevaert Nv

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664400A1 (en) * 1990-07-04 1992-01-10 Kodak Pathe INVERSIBLE PRODUCT FOR COLOR PHOTOGRAPHY.
WO1992001242A1 (en) * 1990-07-04 1992-01-23 Kodak-Pathe Reversal color photographic material
US5378591A (en) * 1990-07-04 1995-01-03 Eastman Kodak Company Reversal color photographic material

Also Published As

Publication number Publication date
FR2220810B1 (en) 1976-11-05

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Legal Events

Date Code Title Description
ST Notification of lapse