by wpengine | May 7, 2021
an optical device that uses diffraction to shape a wavefront, as opposed to a refractive optical element (using materials with differing refractive indexes) that depends on refraction.
by wpengine | May 7, 2021
a thin material which is applied to paper or other substrate through the combination of heat and pressure. Hot-stamping foil can be used to support holographic images which can be transferred, using heat and pressure, onto another substrate such as paper or plastic....
by wpengine | May 7, 2021
in situations where a transparent hologram is required, for instance as a laminate to cover the variable data of a passport or other ID document, instead of coating the holographic image with a metallic film, a transparent coating is made using a material with a High...
by wpengine | May 7, 2021
the term ‘hologram’ is derived from two Greek words ‘holos’ meaning whole or complete and ‘graphos’ meaning an image. The term therefore describes a recorded image which is complete, in that it shows the whole volumetric space of...
