Precision Metallized

A precision metallized DOVID is comprised of fine-line diffractive images which are in precise register to the metallization. In contrast to conventional de-metallization, the tolerances approach zero. Designs include Guilloche patterns with clearly-defined moving patterns and fully transparent intermediate areas (i.e. with no diffractive structures) revealing the underlying document security print. The registration between the diffractive images and the metallization can be verified using an optical microscope.