Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products

An optical product configured, when illuminated, to reproduce an image that appears 3D of at least a part of a 3D object, said optical product comprising:

• a surface comprising a plurality of portions, each portion corresponding to a point on a surface of said 3D object;
• one or more non-holographic features disposed within each portion configured to produce at least part of said image without relying on diffraction;
• an interference optical structure disposed with respect to said one or more non-holographic features, wherein the interference optical structure comprises at least one of:
• a D/M/D multilayer thin film optical stack, where D is a transparent or optically transmissive dielectric layer and M is a metal layer;
• a M/D/M multilayer thin film optical stack;
• a H/L/H/L/H multilayer thin film optical stack, wherein H and L are layers with a refractive index, and wherein the H layers have a higher refractive index than the L layers;
• and
• a A/D/M multilayer thin film optical stack, where A is an absorber layer, D is a transparent dielectric layer, and M is a metal layer that is opaque;
• wherein for individual ones of the portions, a gradient in said non-holographic features correlates to a surface normal of said surface of said 3D object at said corresponding point, and
• wherein for individual ones of the portions, an orientation of said non-holographic features correlates to an orientation of said surface of said 3D object at said corresponding point.