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Proceedings Paper

Spectroscopic imaging from 400nm to 1800nm with liquid crystal tunable filters
Author(s): C. Hahlweg; H. Rothe
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Paper 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.

Paper Details

Date Published: 17 February 2007
PDF: 9 pages
Proc. SPIE 6503, Machine Vision Applications in Industrial Inspection XV, 650307 (17 February 2007); doi: 10.1117/12.705874
Show Author Affiliations
C. Hahlweg, Helmut Schmidt Univ. (Germany)
H. Rothe, Helmut Schmidt Univ. (Germany)


Published in SPIE Proceedings Vol. 6503:
Machine Vision Applications in Industrial Inspection XV
Fabrice Meriaudeau; Kurt S. Niel, Editor(s)

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