Focus-Tunable Microlens Arrays Fabricated on Spherical Surfaces
作者： Difeng Zhu , Xuefeng Zeng , Chenhui Li , Hongrui Jiang
DOI: 10.1109/JMEMS.2011.2105858
关键词:
摘要: We present microlens arrays consisting of multiple focus-tunable microlenses omnidirectionally fabricated on spherical surfaces, to realize large field view. Thin flexible polymer bridges connecting adjacent are designed reduce the wrapping stress and deformation array. Each microlens, formed via water-oil interface, is individually tuned by a thermo-responsive hydrogel actuator. The range focal length each in this array varied from millimeters infinity. A prototype optical imaging system based such surface, including charged-coupled device camera, fiber bundle, 3-D rotational stage, demonstrated as well.
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