Patent ID: 6696229
Filing Date: 2004-02-24
Classification: G03C,Y10S

Abstract:
Photographic process, which comprises the steps of:aâ€”providing a substrate comprising a plurality of superimposed layers of photochromic materials sensitive to different light wavelengths; bâ€”scanning the object to be photographed; câ€”generating from the scanning a digital file defining the image of said object; dâ€”providing a plurality of sources of laser light having different wavelengths, each of which is the wavelength to which one of said photochromic materials is sensitive; and eâ€”irradiating said layers of photochromic materials by means of the laser beams produced by said sources, according to a program determined by said digital file, whereby to develop in each pixel of the substrate the color that it has in said image.