Fluidic shaping of optical components
Fluidic shaping of optical components
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DOI：
10.1017/flo.2021.1
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发表时间：
2021-05-03
期刊：
影响因子：
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通讯作者：
Bercovici, Moran
中科院分区：
文献类型：
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作者：
Frumkin, Valeri;Bercovici, Moran
目前制造透镜的方法依赖于透镜或模具的机械加工，例如研磨、机械加工和抛光。这些制造工艺的复杂性和所需的专用设备阻碍了光学元件的快速原型制作。这项工作提出了一种简单的方法，基于液体体积的自由能最小化，这使我们能够快速地将可固化液体成形为各种各样的球面和非球面光学元件，而不需要任何机械加工。在获得所需的形状后，可以固化液体以产生具有纳米表面质量的固体物体。我们提供了一个理论模型，准确预测的光学元件的形状，并证明快速制造的所有类型的球面透镜（凸，凹，弯月面），柱面透镜，双焦点透镜，超环面透镜，双合透镜和非球面透镜。该方法成本低廉，并且可以使用具有不同光学和机械性能的各种可固化液体来实施。此外，该方法是尺度不变的，并且可以用于生产甚至非常大的光学部件，而不会显著增加制造时间。我们相信，在不需要复杂和昂贵的基础设施的情况下，轻松快速地创建光学元件的能力，将为研究人员提供新的负担得起的工具来制造和测试光学设计。
Current methods for fabricating lenses rely on mechanical processing of the lens or mould, such as grinding, machining and polishing. The complexity of these fabrication processes and the required specialized equipment prohibit rapid prototyping of optical components. This work presents a simple method, based on free-energy minimization of liquid volumes, which allows us to quickly shape curable liquids into a wide range of spherical and aspherical optical components, without the need for any mechanical processing. After the desired shape is obtained, the liquid can be cured to produce a solid object with nanometric surface quality. We provide a theoretical model that accurately predicts the shape of the optical components, and demonstrate rapid fabrication of all types of spherical lenses (convex, concave, meniscus), cylindrical lenses, bifocal lenses, toroidal lenses, doublet lenses and aspheric lenses. The method is inexpensive and can be implemented using a variety of curable liquids with different optical and mechanical properties. In addition, the method is scale invariant and can be used to produce even very large optical components, without a significant increase in fabrication time. We believe that the ability to easily and rapidly create optical components, without the need for complex and expensive infrastructure, will provide researchers with new affordable tools for fabricating and testing optical designs.