EP 0855048 B1 20020116 - METHOD AND DEVICE FOR TESTING A PHOTOGRAPHIC FILM
Title (en)
METHOD AND DEVICE FOR TESTING A PHOTOGRAPHIC FILM
Title (de)
VERFAHREN UND VORRICHTUNG ZUR PRÜFUNG EINES FOTOGRAFISCHEN FILMS
Title (fr)
PROCEDE ET DISPOSITIF POUR VERIFIER UNE PELLICULE PHOTOGRAPHIQUE
Publication
Application
Priority
- DE 19537906 A 19951011
- EP 9604444 W 19961011
Abstract (en)
[origin: DE19537906A1] The invention concerns a method of testing the state of development of a photographic film in a light-proof cartridge. According to the invention, the leading edge of the film is pulled out of the cartridge, the film is positioned between a light source and a photosensor, and the amount of light passing between the light source and photosensor is measured, the state of the film being recognized as undeveloped if a small amount of light passes therebetween.
IPC 1-7
IPC 8 full level
G03D 13/00 (2006.01)
CPC (source: EP US)
G03D 13/005 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 19537906 A1 19970417; DE 19537906 C2 20021121; DE 59608604 D1 20020221; EP 0855048 A1 19980729; EP 0855048 B1 20020116; ES 2171725 T3 20020916; JP H11513503 A 19991116; US 6000861 A 19991214; WO 9714078 A1 19970417
DOCDB simple family (application)
DE 19537906 A 19951011; DE 59608604 T 19961011; EP 9604444 W 19961011; EP 96934657 A 19961011; ES 96934657 T 19961011; JP 51472497 A 19961011; US 5150398 A 19980410