Anti-stokes inks can be easily detected in safety -
Although the instrument generates an invisible infrared laser beam, the header protection and see-through hole allowe the user to work without worries about the laser aimed at his or her eyes inadvertently.
Infrared laser light excitation is seen as a visible light colour -
Special pigments absorb the energy from laser light until they can emit the visible colour reflection.
Security Printing Feature -
The anti-stokes effect is currently used as a security printing feature in special inks used for Currency, ID cards, passports, checks and other security documents.