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New version of DEMOS program is presented. DEMOS ( Design, Evaluation andModeling of Optical Systems) is integrated dialog system for modeling evaluation and design of optical systems with conventional and hologram optical elements (HOE). Theoretical principles and modern state of the main possibilities and application principles of DEMOS program for optical systems with HOE design on personal computers are discussed. L IntroductionFor the last years the interest for the design, making and application of optical systems with HOE is considerably increased. The most of the optical systems, which being designed and manufactured now, are constructed on the basis of the axial symmetric refractive and reflective elements. But for a number of cases the properties of such scheme have been quite limited.The program DEMOS was born in 1973 out of the need for appropriate tool for the design of the no centered optical systems with biaxial HOE on computer. And than one is continuously improved owing to the necessity to automatic the analysis and design of the different types of the optical systems.In 1988-1991 we had made new versions of this program DEMOS-PC which is integrated dialog system for the automated modeling and design of optical systems with conventional and hologram optical elements on computer compatible with IBM PC-AT.The progress of DEMOS is closely connected with the specific problem solution for the design of new optical systems. DEMOS software integrates the experience of many designers and users.The purpose of present paper is to consider the theoretical principles and the modern state of DEMOS-PC with point of view needs the design of optical systems with HOE 254 / SPIE Vol. 1574 International Colloquium on Diffractive Optical Elements (1991) 0-8194-0704-6/91 /$4.0O Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/25/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

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