Up-conversion infrared pigment is a inorganic luminescent material that can convert different invisible infrared light into visible light. It has characteristic of sensitive response, rich glowing colors, long lifetime, easy test and the most important-- high safety and concealed ability, by using it, IR (infrared ray) beam can be efficiently detected, tracked, identified and proofread etc. Some of the common applications are in postage stamps, currency notes, credit cards, lottery tickets, security passes, etc.

            infrared green powder（avoid light）                               infrared green powder（under light）