Abstract

A one-step encoding technique for the archival storage of color films utilizing a white-light grating interferometer is described. The white-light grating interferometer comprised of three pairs of diffracting gratings each with a different azimuthal orientation and an imaging system is employed to simultaneously produce different spatial carriers to each of the tricolor components of the input color image such that the color encoding process can be implemented in one step. This real-time encoding technique greatly simplifies the traditional color encoding process.^1,2 Since a spatially extended white-light source is utilized, low-noise high-fidelity recording of a color image on monochrome film can be obtained. Experimental demonstrations are also provided.

© 1985 Optical Society of America