Patent · US Expired

Light sensitive photographic recording material and the use thereof for the production of photographic images

US4348474A · kind A · utility

11Cited by

8References

9Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Rainer Scheerer · Neunburg vorm Wald, DE
Erwin Ranz · Leverkusen, DE
Joachim W. Lohmann · Odenthal, DE

Key dates

Filing date	Jul 23, 1981
Grant date	Sep 7, 1982
Priority date	—
Expiry date	Jul 23, 2001

Classification

Technology area (CPC G)Physics
CPC primaryG03C2007/3034
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A photographic recording material having at least 2 panchromatically sensitized silver-halide emulsion layers differing in speed, a DIR-compound and at least 2 yellow couplers of differing coupling velocity provides an improved graininess.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.