| 摘要 |
he invention relates to a clear and transparent plate glass having one side treated by sand blasting. The treated side is destined to be the recipient of images (light and colour) emitted by image projectors and can be used in the advertising sector for the projection of stable images or advertising films, in television or satellite programs, and, in general, for the projection of whatever lively image. The advantage of the invention is that it guarantees high granularity image, easy use in dependence on the installation place, low construction and maintenance cost, resistance and long service life. |
