
TOKYO -- Central Glass has developed a way to make projected images look sharp on windows, providing an alternative to digital signage for advertising and other applications.
To create glass that can serve as a projection screen, the company bakes diamond particles processed by Tokyo-based Vision Development onto the surface. The diamond's high ability to refract light means that images appear clearly on glass so treated, even when projected laterally to the surface. This approach makes for more distinct images and costs less than coating windows with special films, according to Central Glass.