Change a Scanner Light Source (flatbed scanner) with a UV Light Source

I would like to transform a usual A4 scanner (a flatbed scanner) into an UV Scanner : (what I mean is that I would like have an A4 scanner but instead of the normal light source ,to replace the source with a Ultraviolet light source) Explications : let's say that we buy a A4 Scanner device from Canon or HP (old models or new models, preferable new models) and the scanner has a normal light source ; What I want is that instead to use the normal light source, to change the normal light source with a Ultraviolet Light Source , so , when I scan a document which contain UV features on it , with this scanner to be able to scan the UV features; with normal light source scanners this option is not available this because the UV features are visible just over the UV Light . Here are some useful links : [login to view URL] [login to view URL]