The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2000
Filed:
Aug. 05, 1998
Lois A Buitano, Rochester, NY (US);
Allan F Sowinski, Rochester, NY (US);
Maria J Gonzalez, Pittsford, NY (US);
Steven G Link, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
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.