For many,Jena is still synonymous with the optical systems manufacturer Zeiss. But the city is also home to many internationally renowned research institutes. Over the last 2 decades,Jena has become a city of science and one of eastern Germany's economic success stories.In addition to Zeiss,many other high-tech companies,such as Jenoptik and Schott are based here. And the city's Friedrich Schiller University of Jena attracts students from around the globe. Our reporter Jürgen Schneider went to take a look around.