Lounge of EuroCenter Óbuda Shopping and Entertainment Center with special light pipe luminaires.
The birth of the so-called “light pipe” was enabled by the invention of a special micro- grove polycarbonate film, OLF, which ensures the passage of the light from the light source all along the pipe with minimal waste.

The film positioned in the pipe acts both as a high- efficiency mirror and as a transparent window; because of the complete reflection it passes on the majority of the entering light while the minor part is let through the cylindrical surface providing a balanced illuminance.