Abstract: According to one aspect of the present invention there is provided a coating material comprising: a functional coating component; and a fluorescent additive component whose fluorescence is substantially unquenched by the coating component, the fluorescent additive component having a peak fluorescence emission under excitation by visible or infrared light, the wavelength of that peak fluorescence emission being greater than 500 nm and lying outside the principal fluorescence absorption and emission wavelengths of the coating component.
Type:
Grant
Filed:
August 8, 2003
Date of Patent:
July 18, 2006
Assignees:
Heroit-Watt University, The University Court of The University of Edinburgh, AOI Foils Limited
Inventors:
Anita Claire Jones, James Stephen Barton, Jolyon Mark De Freitas, Julian David Clayton Jones, Philip Norman Spencer, Guy John Gregory