Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1998-08-05
2000-04-04
Huff, Mark F.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430567, 430570, G03C 146
Patent
active
060459832
ABSTRACT:
A color negative film is disclosed capable of producing dye images suitable for digital scanning. With a green recording layer unit coated over a red recording layer unit a red exposure information containing dye image record is created that better matches human visual color perception when reversed to a positive that is red with unsought densities in the same spectral region as the red exposure information containing dye image attributable to blue and green recording layer units subtracted, by (a) withholding colored masking couplers from the recording layer units, (b) employing tabular grain emulsions with average aspect ratios of less than 15 in the green recording layer unit, and (c) placing spectral sensitizing dye in the red recording layer unit that exhibits an overall half-peak absorption bandwidth of at least 50 nm bridging the green and red regions of the spectrum, with absorption at 560 nm being in the range of from 80 to 95 percent of maximum absorption, which is located in the spectral region of from 575 to 710 nm.
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Buitano Lois A.
Gonzalez Maria J.
Link Steven G.
Sowinski Allan F.
Eastman Kodak Company
Huff Mark F.
Thomas Carol O.
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