Development of cost efficient optical fiber for sunligth illumination

Daylight and its smooth continuous spectrum is optimal for the well-being of peoples health and ability to work. This is why its good to switch from traditional lightning to a more natural daylight. If a glass fiber is used it is possible to transport daylight further into buildings to a reasonable cost. This should make it possible to broad exploit of daylight in environments as subways tunnels, large conference rooms and parking garages and result in a better indoor environment.

The project has developed a production protocol for a homogenous multicomponent silicate glass and a production technique for fiber drawing of quarts glass fibers. Four cables have been produced from fibers drawn in the project. Contacts have been fitted to these cables and they have been installed in solar lightening systems from Parans. One system is successfully installed by Skanska within the project and the second will be installed by Akademiska hus after the project. The project shows that it is possible to transport sunlight up to 75 m which is 3 times as long as for a plastic fiber.