Patent · US Expired

Silver halide photographic light-sensitive material

US6641987B2 · kind B2 · utility

1Cited by
5References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 29, 2001
Grant dateNov 4, 2003
Priority date
Expiry dateMar 29, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03C2003/006
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Disclosed is a silver halide color photographic light-sensitive material including at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one blue-sensitive silver halide emulsion layer on a support, and having an ISO sensitivity of 640 or more, wherein the material exhibits a color saturation evaluation value &eegr;, represented by equation (I) below, of −15 dB or more.&eegr;=10 log(1/VT) [VT=(⅙)×((62−Y1)2+(62−Y2)2+(62−Y3)2+(62−Y4)2+(62−Y5)2+(62−Y6)2)]  (I) In Formula (I), each of Y1 to Y6 is a value obtained by exposing 12 colors of a Macbeth color chart with six exposure amounts, from −1 under to +4 over, measuring the saturation of each resultant color, and averaging the data (chroma values) for a corresponding exposure amount.

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