Gesellschaft zur Förderung von Medizin-,
Bio- und Umwelttechnologien e. V.

Felsbachstraße 7 trenner 07745 Jena
Tel: 03641 366710 trenner Fax: 03641 366777
E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it. trenner

The proliferation of imaging spectrometers opens new possibilities for analysis and monitoring for many technical fields. Spectral imaging represents a combination of digital image processing and classical spectroscopy, whereby a spectrum is recorded for each pixel simultaneously.

The advantages of spectral imaging are particularly generated through the combination of this technology with the appropriate multivariate analysis. For each application a suitable method is developed, capable of splitting (unmixing) the recorded spectra into its member components, as well as distinguishing the type and quantity of the components. The spectrum of analysis techniques ranges from unmixing (MCR, NMF) through classification (SAM, SVM, K-Means) up to data exploration methods (OPA, PCA-VARIMAX).

Application example: Microarray scanner for fluorescence measurements on biochips

The microarray scanner analyses fluorescence-labeled DNA-biochips spectrally resolved. Thereby spectral imaging technology offers some advantages over conventional microarray scanners:

  • larger number of dyes can be distinguished
  • dentification and consideration of contaminations
  • high throughput due to parallel recording of measurement points
Application example: Hyperspectral Raman sensor for simultaneous qualitative and quantitative analysis

Raman spectroscopy generates chemical fingerprints of substances and mixtures. The sensor developed acquires Raman spectra from more than one hundred measurement points along a line simultaneously which enables faster analysis compared to conventional spectrometers. Potential application fields are the (bio-) medical and chemical analysis e.g. in the paper or pharmaceutical industry.

Application example: VIS-NIR hyperspectral imaging for analysis of paintings

Paintings with oil, tempera, acrylic or water colors can be investigated by hyperspectral imaging in the visible and infrared wavelength range. By this non-destructive examination method it is for instance possible to reveal underlying layers like preliminary drawings or overpaintings/alterations and conclusions can be drawn on the pigments used for the painting. In addition to that also historical documents or scriptures can be analyzed by hyperspectral imaging.

Newspaper article: Jenaer Hodler-Gemälde mit Spezialkamera durchleuchtet

Application example: Image-based spectroscopic sensor for the automatic control of gas burners in the glass-processing industry

The precise composition of the combustion gas mixture of burners is essential for the maximum achievable flame temperature as well as for the economic use of raw material. A mobile device for optical flame analysis and optimization of gas supply for industrial burners has been developed. It assesses the relative fuel-to-oxygen ratio by analysing the gas emission spectra in the UV-VIS range along the flame. The sensor allows for calculation of a flame index stating the quality of fuel supply.

Contact: This email address is being protected from spambots. You need JavaScript enabled to view it.