Penn State-affiliated startup Chromatir develops color-shifting coatings
If you look at the back of a credit card, a driver’s license, or even a dollar bill, you will likely notice a hologram, or iridescent feature, that appears to change color when viewed at different angles. These color-shifting security features have been around for decades, allowing ample time for people to find ways of counterfeiting the effects. Even so, these types of highly visible and easily recognized color-shifting features are still among the most commonly used optical security element ...
Amy Goodling Caleb Meredith Lauren Zarzar Office Of Technology Management Lab Bench To Commercialization National Science Foundation
Source: psu.edu