Spectroscopic imaging from 400nm to 1800nm with liquid crystal tunable filters

C. Hahlweg; H. Rothe

doi:10.1117/12.705874

17 February 2007 Spectroscopic imaging from 400nm to 1800nm with liquid crystal tunable filters

C. Hahlweg, H. Rothe

Proceedings Volume 6503, Machine Vision Applications in Industrial Inspection XV; 650307 (2007) https://doi.org/10.1117/12.705874
Event: Electronic Imaging 2007, 2007, San Jose, CA, United States

Abstract

In the recent years an experimental hyperspectral multi-camera system based on liquid crystal tunable filters (LCTF) was developed at the Chair for Measurement and Information Technology of the HSU Hamburg. The system allows the acquisition of narrow band image series over the complete spectral range from 400nm - 1800nm. In the range from 400nm - 1100nm CMOS cameras with a dynamic range of up to 22bits are used, allowing radiometrical measurements over 6.5 decades. In the SWIR range an InGaAs camera with a dynamic range of 14 bits is used. The system is intended especially to find out interesting spectral ranges for particular applications.

Citation Download Citation

C. Hahlweg and H. Rothe "Spectroscopic imaging from 400nm to 1800nm with liquid crystal tunable filters", Proc. SPIE 6503, Machine Vision Applications in Industrial Inspection XV, 650307 (17 February 2007); https://doi.org/10.1117/12.705874

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