A new way to obtain colour glasses with some reflectence is reported. The sol-gel process is used to solve the well-known problem of incorporating colour and reflectence on the glass surface. Compared with general method, fluorescent thin films are prepared by low temperature process with the aid of a surface agent with good homogeneity and reproducability. Some kind of organic fluorescent molecules are embedded in titania films. If at least twenty alkoxy titania groups per molecule fluorescent are available and if these titania are sufficiently hydrolyzed, the dye is completely encapsulated by a three dimensional 'cage' of Ti-O bonds. And when it is coated, the dyes are adhered to the glass. A low acid concentration in the coating solution results in the incorporation of large amount of the dye clusters in the titania layer.
