Multi-wavelength thermal imaging system

Shahram Hejazi, Robert A. Spangler

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


The design and construction of a four-wavelength digital thermal imager, with additional visible imaging capabilities, has been undertaken. Use of common focusing optics ensures image register and identical perspective at each of the wavelengths. The detector assembly for the multiwavelength system consists of a linear array of MCT photoconductive elements mounted in a single Dewar for liquid nitrogen cooling. Each element possesses an active area of about 0.01 mm, with spacing of approximately 0.25 mm. Each of the detectors samples the image formed by a single set of focusing optics, thereby ensuring uniform image properties among the four channels.

Original languageEnglish (US)
Pages (from-to)1153-1154
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume11 pt 4
StatePublished - Dec 1 1989
Externally publishedYes
EventImages of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 2 - Seattle, WA, USA
Duration: Nov 9 1989Nov 12 1989

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics


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