by Justin Ives | Nov 11, 2022
The process of hot stamping DOVIDs (holograms) is well established but suffers from the drawbacks of being slow and offline. It has been rejected by some powerful brand owners as unsuitable for high volume application. For this reason, cold foil is coming under new...
by Justin Ives | Nov 11, 2022
A method is proposed to compute and synthesize a nano-optical element to produce a new visual effect: 3D image formed in the vicinity of zero diffraction order. The main idea of the new method is to set large viewing zone with the center at zero order (not as narrow...
by Justin Ives | Nov 11, 2022
In 2022, People’s Bank of China issues two commemorative banknotes for Beijing 24th Olympic Winter Games. One is polymer banknote and the other is paper banknote. The polymer base and paper base of the Winter Olympics commemorative banknotes are both use color dynamic...
by Justin Ives | Nov 11, 2022
Commonly used in passports, ID cards, driver’s licenses, and more, holographic optical effects are striking and attractive. Holograms are widely used to secure identity documents, specifically as the picture is the most attacked feature. Traditionally, holograms are...
by Justin Ives | Nov 11, 2022
The ability of an optical security device to provide a highly attractive overt image yet contain variable behaviour, so end-users can easily authenticate, is why secure optical technology remains prevalent. Even as digital and electronic security becomes more...
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