Here is [upir] with their take on the simple edge-lit acrylic 7-segment design ... type used tiny tungsten filament bulbs and complex light paths to direct light to the front of the display.

The new technology may one day be useful for harvesting energy, while remaining transparent to light and using a single ... After exposing a simple line pattern on the surface of a tellurite ...

Researchers developed a graphene-based transparent film with light-sensitive properties, opening new possibilities in lasers, ...