Micro-Optic Device

A micro-optic device, comprising:

• a substrate including a first surface and a second surface;
• optical elements;
• and
• image elements,
• wherein the optical elements and the image elements are integrally formed as a unitary structure located on the first or the second surface of the substrate, and
• wherein the image elements are arranged to be sampled by the optical elements to produce a first optical effect observable from the first surface of the substrate, and the same image elements are arranged to be sampled by the optical elements to produce a second optical effect observable from the second surface of the substrate.