Why is Jena called City of Light?

For more than 150 years the science city Jena has been shaped by innovative, light-based technologies. Many of Jena’s „Brilliant Success Stories” describe sustainable solutions with light to address important challenges of the future in the area of health, energy, mobility, environment, security, communications and information technology. Find out more


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NEU: Jenaer Lichtgedanken in der "Jena Lichtstadt" Broschüre Weitere Informationen

Brilliant Success Stories from Jena

Ideas and innovations play a big role in Jena. An estimated 250 patents per 100,000 inhabitants are being registered here annually (the German average is 59). With about 1,000 researchers in the fields of optics and photonics as well as more than 9,000 employees in the high-tech industries Jena is an European centre in the field of light-based technologies. There are more than 100 companies in Jena that belong to the optoelectronic industry and precision engineering. Among them well established companies of Carl Zeiss AG, JENOPTIK AG and SCHOTT AG. Find out more

"For the rest of my life I will reflect on what light is."

- Albert Einstein