Color switchable photographic display image
US6436620B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2001 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Apr 27, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3029
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention relates to an imaging element comprising a translucent sheet, and at least three photosensitive dye forming coupler containing layers on the face side of said sheet, wherein said at least three photosensitive forming coupler containing layers comprise a cyan dye forming layer comprising a cyan dye forming coupler in combination with a red sensitized photosensitive emulsion, a yellow dye forming layer comprising a yellow dye forming coupler in combination with a blue light sensitive photosensitive emulsion, a magenta dye forming layer comprising a magenta dye forming coupler and a green light sensitive photosensitive emulsion, and on the back side of said translucent polymer sheet at least one dye forming coupler comprising magenta dye forming coupler, cyan dye forming coupler, or yellow dye forming coupler in combination with a light sensitive silver halide emulsion sensitive to a different wavelength of visible light than it was in combination with on the face side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.