Photocopying – Projection printing and copying cameras – Identifying – composing – or selecting
Patent
1980-11-06
1983-09-13
Griffin, Donald A.
Photocopying
Projection printing and copying cameras
Identifying, composing, or selecting
355 38, G03B 2778
Patent
active
044038542
ABSTRACT:
A color print machine, which makes prints from developed color film, is provided with an automatic exposure control system. A memory stores control signals for adjusting the automatic exposure control system for predetermined differing color film types and is addressable for selecting the control signals to be furnished for the color film type involved. The color film is provided with machine-readable film-type identifying code markings prior to printing. A code-marking scanner performs machine-reading of the film-type identifying code markings and generates corresponding film-type signals. The memory is addressed, thereby selecting the control signals to be furnished to the automatic exposure control system for the particular color film type involved, in automatic response to the film-type signals.
REFERENCES:
patent: 2482242 (1949-09-01), Brustman
patent: 3490844 (1970-01-01), Sapp
patent: 3768903 (1973-10-01), Steinberger et al.
patent: 3898002 (1975-08-01), Kinder et al.
Fergg Berthold
von Stein Werner
Agfa-Gevaert AG
Griffin Donald A.
Striker Michael J.
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