LOUISE MURRAY / SCIENCE PHOTO LIBRARY LOUISE MURRAY / SCIENCE PHOTO LIBRARY
Danish banknote in UV light, close up. The design on this 500 kroner banknote incorporates an invisible pattern that fluoresces brightly under ultraviolet (UV) light. The portrait is scientist Niels Bohr. This and other security measures are designed to prevent counterfeiting.
Model release not available. Property release not required.