Color deformographic storage target

Claim 1

In a deformographic storage/display tube wherein a modulated electron beam deposits information on a target assembly and wherein light is passed through or reflected from said target assembly to project said information for visual display, a target assembly comprising a dielectric target for receiving electrons from said electron beam and providing a surface for electrostatic charge build-up in accordance with beam modulation, said dielectric target retaining said charge build-up after said beam is removed, a dielectric mirror comprising optically a quarter wavelength stack of an odd number of alternating layers of material said dielectric mirror deposited on a second surface of said target opposite to the target surface upon which an electrostatic charge is built-up, a deformographic material deposited on the surface of said dielectric mirror to a thickness which is an even number of half wavelengths, a semi-transparent mirror and ground plan deposited on the surface of said deformographic material to a thickness sufficient to provide reflectivity for optical interference purposes and sufficiently thin to provide an acceptably low level of hindrance to the deformation of the deformographic material, so that when a light beam is transmitted through or reflected from said target, the deformographic material sandwiched between the two mirrors acts as a type of Fabry-Perot interference filter to provide a base color for projection and a different color for the light projected through the deformed areas of the deformographic material.