Theatre programme which can be read in dark - is printed on photo-luminescent material which glows after exposure to light

摘要

The required text is printed on the transparent sheet which is then placed over a sheet of photo-luminescent material. It is then covered with a protective transparent sheet. The menu or programme is first exposed to the light for a short time. When removed from the light the photo-luminescent material provides a glow which enables the text to be read. USE/ADVANTAGE - A restaurant menu or a theatre programme can be read in a poor light or even in the dark.