| 摘要 |
<p>The invention relates to a multi-layered glass structure for the changing of its light permeability which contains a closed space between two or more transparent pieces of glass or plastic. The characteristic feature is that the closed space contains a mixture of 0.1-100 % polymer, solvent or solvent mixture in a 0-99 % gel structure and 0-50 % dissolved material.</p> |
