What is fluorescent paper?
Fluorescent paper and plain paper itself is not luminous in the dark, so they are black. In the sun, when light irradiates on plain paper, paper put the light reflected, but also the ultraviolet reflected light reflected from the eye can see, but can not see the ultraviolet ray;
When light irradiates the fluorescent paper, paper in addition to the light reflected at the same time, but also the ultraviolet fluorescent powder into visible light and reflected light intensity increased, so the fluorescent paper looks much brighter than ordinary paper.
