DEMOS: new possibility for design and modeling of complex optical systems

The application of the program DEMOS for design and modeling of IR optical systems is considered. The principles of the multiconfigurational optimization for IR and multispectral systems design are worded. The analysis of the kinoform elements (KE) application for the systems of this group is given. Besides, the methods of the image quality improvement by means of optical system optimization taking into account the surface errors are described. The examples of IR systems design are presented.