EP 0754964 A1 19970122 - Silver halide photographic materials comprising silver bromide or bromoiodide emulsions having triangular tabular grains
Title (en)
Silver halide photographic materials comprising silver bromide or bromoiodide emulsions having triangular tabular grains
Title (de)
Photographische Silberhalogenidmaterialien, die dreieckige Tafelkörner aufweisende Silberbromid- oder Bromidjodidemulsionen enthalten
Title (fr)
Matériaux photographiques à l'halogénure d'argent comprenant des émulsions au bromure ou iodobromure d'argent ayant des cristaux tabulaires triangulaires
Publication
Application
Priority
- EP 96201956 A 19960711
- EP 95201973 A 19950718
Abstract (en)
A light-sensitive silver bromide or silver bromoiodide emulsion is provided, comprising silver bromide or silver bromoiodide tabular triangular grains, said tabular triangular grains having an average grain thickness of less than 0.3 mu m, an average crystal diameter of at least 0.6 mu m; an average aspect ratio of at least 2:1; a variation coefficient of less than 40 %, said grains accounting for a total projective area of at least 30 %; characterised in that the thickness ratio of triangular tabular grains to hexagonal tabular grains is from 1.3 to 0.7.
IPC 1-7
IPC 8 full level
G03C 1/005 (2006.01); G03C 1/04 (2006.01)
CPC (source: EP)
G03C 1/0051 (2013.01); G03C 1/035 (2013.01); G03C 1/04 (2013.01); G03C 1/067 (2013.01); G03C 2001/03529 (2013.01); G03C 2001/03594 (2013.01)
C-Set (source: EP)
Citation (search report)
- [XY] FR 2534036 A1 19840406 - KODAK PATHE [FR]
- [Y] EP 0392092 A1 19901017 - AGFA GEVAERT NV [BE]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 96201956 A 19960711