Digital Hidden Image Technology

Focus Digital Hidden Image Technology (DHIT) is a traditional hidden image printing which involves two main components: Encryption Images and Special Optical Lens.

The processing employs dot matrix principle and printing craft to combine and encrypt one or more images. Part of the images is selected as the revealed images, which can be seen with naked eyes; and the remaining part is the hidden digitalized images, which only visible with the use of special checker - an optical lens. The hidden section shows different images as the lens rotates in different angles.