Abstract
As the most widely used optimization method in optical system design, the damped least squares (DLS) method performs well in convergence speed. However, the fatal flaw of DLS method is that it is easy to get caught into local minima. Thus, some intelligent algorithms are adopted in optical system designing for global optimization. Genetic algorithm (GA) has the unique advantages of wide scope of application and powerful global search capability. In this paper, we proposed a new optimization method for optical system design, which is based on an improved genetic algorithm and combined with the damped least squares method. Besides, a machine vision lens is designed by the proposed method, which verified the effectiveness of the method.
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