Solid-State Optical Radiation Matrix Receivers in Robots’ Vision Systems
Problem statement: Video sensors based on matrix optical receivers are often being used as a part of binocular and multi-angle portable robot’s vision systems. Their main aim is to provide robot a possibility to orient in any environment. Due to complex architecture of matrix receiver’s surface, instrumental errors may occur, which can have a significant impact the measuring result in robot’s orientation system. Thus, systematic research of matrix photodetector’s parameters, which affect the value of electric signal, is significant for the measuring video information schemes of portable robots’ video sensors accuracy analysis. Purpose of research: development of an algorithm for measuring the variation of optical parameters of the photodetector surface. Results: basing on ellipsometry method, algorithm for passing optical rays through the multilayer matrix structure and software for its implementation were developed, the variation of parameters of the solid-state matrix receiver’s surface were calculated. Practical significance: the ellipsometry method can be applied to control the quality of matrix optical receivers. The program, developed during this research, gives a possibility to automate the calculation of the optical parameters of video sensors matrices.
KeywordsEllipsometry Portable robot Optical matrix receivers Inverse ellipsometry problem Polarization Surface control
This work was financially supported by Government of the Russian Federation, Grant (08-08).
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