Title :
A multi-wavelength thermal imaging system
Author :
Hejazi, Shahram ; Spangler, Robert A.
Author_Institution :
State Univ. of New York, Buffalo, NY, USA
Abstract :
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
Keywords :
biomedical equipment; biothermics; infrared imaging; patient diagnosis; 4-wavelength digital thermal imager; Dewar; MCT photoconductive elements; active area; focusing optics; multi-wavelength thermal imaging system; Biomedical optical imaging; Detectors; Fluorescence; Focusing; Optical imaging; Optical surface waves; Photothermal effects; Skin; Temperature; Wavelength measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96134
