Color photographic film exhibiting increased blue speed
US5994042A · kind A · utility
3Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1999 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Apr 1, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color photographic element is disclosed containing in its blue recording layer unit a blue light reflective layer positioned to receive light from a layer in the blue recording layer unit containing latent image forming silver halide grains of maximum sensitivity. The blue light reflective layer is free of blue absorbing dye and contains tabular silver halide grains having a thickness in the range of from 0.12 to 0.15 .mu.m, an average aspect ratio of greater than 15, and a coating coverage of 0.5 to 1.5 g/m.sup.2, and are formed of greater than 50 mole percent bromide, based on silver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.