基于改进禁忌搜索算法的液体透镜系统优化设计

建立了一套最新的优化概念,以便于液体透镜在一般光学系统中的优化设计。由于液体透镜拥有多个离散的变焦位置,设计时不得不在其中选择多个位置作为阻尼最小二乘法(DLS)的初始优化点。而这些位置通常是由设计者凭经验来选择的,不同的选择不仅会对设计过程带来不同的影响,而且会给设计结果带来本质的不同。基于此提出了一套改进禁忌搜索(ITS)算法,从而实现在DLS算法优化的过程中液体透镜变焦位置的自动选取,从而得到更佳的成像效果。

Study of Optical Design with Liquid Lens Based on Improved Tabu Search

For optimizing the optical system with liquid lenses, a new concept is proposed. Because liquid lenses have multiple discrete zoom locations, it is inevitable to select an initial solution for the damped least square algorithm (DLS) optimization process. The selection of the initial solution mostly depends on the experience of the designer. Thus different choices not only can bring the influence for different design processes, but also can bring difference in nature for the design results. To obtain a dynamic solution during the optimization process, an improved tabu search (ITS) algorithm with the DLS is proposed. The results show that automatic selection of zoom positions makes imaging effect better.