CONCENTRIC LENS SYSTEMS
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For citation: Ezhova K.V., Zverev V.A., Tochilina T.V. Concentric lens systems. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2016, vol. 16, no. 2, pp. 224–236. doi:10.17586/2226-1494-2016-16-2-224-236
Subject of Research. The paper discusses theoretical foundations of synthesis of concentric lens systems for various applications based on the 3rd order aberration theory. The main difference of concentric lens systems, in addition to the special geometry of the system, is an image spherical surface shape with the radius equal to the focal length of the entire system. For such optical systems compensation is required not only of corner spherical aberration, but also of chromaticity position. Method. The paper presented mathematical apparatus that allows determining the design parameters of the concentric lens systems. The coefficients were introduced determining interrelationship of the radii of curvature for the surfaces of concentric optical systems that gave the possibility to transform the obtained analytical relations in the system of two equations with two unknowns. It is shown that the existence of solutions of the system is determined by the optical constants of the selected lens material. Main Results. The results of correction conditions analysis of the chromatic aberration of position and the sequence of the resulting system of equations have provided theoretical basis for the engineering method of a parametric synthesis of concentric lens systems and developed a mathematical model for the calculation of such systems. Practical Relevance. The undoubted practical significance of the work lies in the examples of specific systems calculation with different possible designs of construction and defining the angular spherical aberration and chromatic aberration of position calculated for each system.
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