Patent · US Expired

Photographic materials with antihalation means based upon silver halide emulsions

US4312941A · kind A · utility

19Cited by

3References

12Claims

0Family size

Assignee

VEB Filmfabrik Wolfen · DE

Inventors

Martin B. Scharf · Koblenzer Straße, DE
Ulrich Meisel · Jena, DE

Key dates

Filing date	May 29, 1980
Grant date	Jan 26, 1982
Priority date	—
Expiry date	May 29, 2000

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/142
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present invention is directed to a photographic material based upon silver halide emulsions comprising an emulsion layer containing a diffusible dye, and an antihalation layer containing a mordant for fixing the diffusible dye superimposed directly over the emulsion layer, the antihalation layer having its maximum degree of absorption in the same spectal range as the maximum degree of sensitivity of the emulsion layer.

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