Since 2015, Stellar has been supporting the i-ris-project. A revolutionary method to detect intake of medications, drugs or alcohol, as well as different illnesses in a matter of seconds.

The iris is connected to the human brain perception by a muscle that is not controllable by human beings. Human vision is differentiated into twilight vision and daylight vision. At twilight, when the iris diaphragm is fully opened for example, humans do not have colour vision. At the same time in order to protect itself the pupil contracts in the case of a sudden exposure to light.

In its function, the iris of the human eye follows special parameters that are uniquely attached to each individual human body. This unique signature of the reaction can be measured and recorded. All parameters within the reaction are reproducible measurable. However, it is significantly influenced by: age, illness, gender, alcohol, medication or drugs. This business concept is based on these findings.

Different measurement setups were carried out to examine, record and assess the function of the human iris.

The iris lab experimental setup uses a high speed camera to record the working sequences of the iris. It is important to consider different lighting scenarios by using light impulses with different intensity, duration and color temperature.

Based on the data obtained the following can be detected: intake of medication, drugs or alcohol.

At first, an experimental setup, an app to detect drugs was developed: iris head.

The second app conceptualized an experimental setup, iris lab, to detect tiredness and neurodegenerative diseases. The device can be used (personalized) for occupational health and safety purposes.


Federal Ministry for Economic Affairs and Energy
on the basis of a decision by the German Bundestag.


This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 805945



Prof. Dr. Bernhard Hill, RWTH Aachen
Prof. Dr. Gregor Fischer, TH Cologne
Univ.-Prof. Dr. med. Thomas Kraus, Uniklinik RWTH Aachen
Priv. Doz. Dr. Eva-Maria Elmenhorst, DLR Cologne

+49.2233.39 68 0