تحسين كفاءة التصوير الحراري باستخدام أشكال مختلفة لفتحات العدسة

Improvement of Thermal Imaging Efficiency Using Different Shapes of the Lens Aperture

Thermal imaging is an effective form of night vision technology, with the ability to operate in the complete absence of any light.
The principle of its work is to capture the infrared part of the electromagnetic spectrum emitted by objects because these objects emit electromagnetic waves when their temperature is higher than absolute zero.
Thermal imaging cameras are widely used in military applications for their capabilities to provide night vision, monitoring, and identification of targets. Thermal imaging applications depend on specific wavelengths of infrared radiation (3-5) µm and (8-14) µm.
The quality of the optical system depends on several factors that in turn affect the intensity of the image, such as the geometrical aspects of the optical system design that result in diffraction and aberration, and also depends on factors related to the nature of the target and its surroundings environment (type of target, its speed and weather conditions). will be dealt with in this work, an ideal optical system. That means, studies the effect of factors which related to the target and its surroundings environment, and analyzing the degradation in the image intensity, which gives a blurry image to detect a higher intensity value that required to distinguish the target and not only detect it.
In this study, the thermal imaging conditions was applied to the RSF to find out the intensity distribution of the detected thermal image in the specific place of Karbala governorate.
different shapes of camera aperture (circle, square, triangular) were applied and optical filter to improve the thermal camera efficiency.
Mathcad software will be used to study and develop the performance of thermal imaging devices using the RSF function as a description of the targets, as the model it is a promising technology for military applications that try to improve the thermal camera in the environment of the Karbala governorate.