Photographic elements for producing blue, green, and red exposure records of the same hue and methods for the retrieval and differentiation of the exposure records
US5350664A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1993 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Jul 16, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3029
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units at least two of which produce images of the same hue upon processing (e.g., lacking an incorporated dye-forming coupler), and obtaining separate blue, green and red exposure records from the photographic element. The photographic element is additionally comprised of, interposed between the two emulsion layer units, an interlayer unit for transmitting to the emulsion layer unit of the two units which is nearer the support, electromagnetic radiation that this emulsion layer unit is intended to record and capable, after processing, of reflecting electromagnetic radiation within at least one wavelength region. The imagewise exposed photographic element is photographically processed to produce a silver image in each of the emulsion layer units, and is reflection scanned utilizing reflection from the interlayer unit to prov…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.