International Journal of lnfrared and Millimeter Waves, Vol. 8, No. 5, 1987 INFRARED DYNAMICAL THERMOVISION OF THE BIOLOGICAL OBJECTS E. E. Godik, Yu. V. Guljaev, A. G. Markov, A. V. Petrov, and A. M. Taratorin Institute of Radio Engineering & Electronics USSR Academy of Sciences, 103907, Marx Avenue 18 Moscow, USSR Received March 5, 1987 Abstract Dynamical infrared thermovision and applications for real time functional diagnostic of biological objects are reviewed. Experiments with humans and animals are described. It is shown that method is very promising for blood flow studies and brain research. Biological objects exists in quasiequilibrium conditions and therefore their temperature is close to the earth thermal background that is near 300 K. Intensity maximum of this temperature thermal radiation lies in the middle infrared range in the atmospheric transparance window 8-14 ~m. In the more short wave transparance window 3-5 ~m, intensity is ten times less, but here it strongly depends upon temperature and the contrast sensitivity is higher. Both absorption and radiation depths in water containing biolo- gical tissues is not higher than 100 ~m. It means 517 0195-9271/87/0500-0517505.G0/0 9 1987 Plenum Publishing Corporation