by wpengine | May 7, 2021
a method of embossing in which a film of soft resin is applied to a nickel shim then exposed to ultraviolet light causing the resin to harden by cross linking. The resin film can now be removed and retains a faithful copy of the surface relief image that was present...
by wpengine | May 7, 2021
a classic hologram is usually made using a 3D object, often a model. A laser beam is split in two and part is diverted onto the object, reflected off it then allowed to combine (or interfere) with the other part of the beam known as the reference beam. The classic...
by wpengine | May 7, 2021
the degree to which photons in a beam of light are in phase.
by wpengine | May 7, 2021
a technique that uses computational methods to calculate the interference pattern that would have been created by a reference beam interfering with an object beam. The pattern is printed onto a mask or film to be viewed using illumination from a suitable light...
by wpengine | May 7, 2021
as ‘stereogram’ but where the sequential images are generated from processing images on a computer.
