ILS is located in Stuetzerbach, a small village in the Thuringian Forest in central Germany. Even though small in size, Stuetzerbach has made a name for itself all over the world and has quite a history in glass manufacturing.
Since the first glass factory was founded in Stuetzerbach in 1674, it was a village of innovation. The German thermometer (1839), light bulb (1883), Mr. Röntgen's X-Ray tube (1893) and the vacuum flask (1895) were all first developed in Stuetzerbach.
