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.)
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.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba 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
Priority claimed from CH645566Aexternal-prioritypatent/CH458924A/de
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Priority to FR105208ApriorityCriticalpatent/FR1521913A/fr
Application grantedgrantedCritical
Publication of FR1521913ApublicationCriticalpatent/FR1521913A/fr
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B27/00—Photographic printing apparatus
G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
G03B27/735—Controlling exposure by variation of spectral composition, e.g. multicolor printers in dependence upon automatic analysis of the original
Landscapes
Physics & Mathematics
(AREA)
Spectroscopy & Molecular Physics
(AREA)
General Physics & Mathematics
(AREA)
FR105208A1966-05-041967-05-03Commande d'exposition dans les appareils à copier photographiques pour exposition polychrome
ExpiredFR1521913A
(fr)