arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2603.27367physics.app-ph
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零浪费制造眼科镜片的直接流体成形技术:任意领域

Zero-waste manufacturing of ophthalmic lenses by direct Fluidic Shaping in arbitrary domains

Technion – Israel Institute of Technology(以色列理工学院);Boston University(波士顿大学)

Yotam Katzman, Mor Elgarisi, Amos A. Hari, Jonathan Ericson, Omer Luria, Valeri Frumkin, Moran Bercovici

AI总结:

本文提出了一种基于流体成形的零浪费制造方法,通过Cookie Cutter算法实现任意领域镜片的直接成型,无需磨削和抛光,从而实现全加性制造的零浪费生产。

摘要:

传统的眼科镜片制造是一种效率低下的减材过程,其中高达97%的材料通过磨削、抛光和边缘处理被丢弃。流体成形技术作为一种有力的替代方法,利用表面张力形成光学质量表面。尽管该方法能够制造无需磨削或抛光的眼科镜片,但其局限于圆形或椭圆形的镜片底座,并仍需要浪费性的边缘处理来适配眼镜框架。本文引入了Cookie Cutter算法,将流体成形方法推广到任意领域,从而消除所有减材过程。该数学框架计算了边界框架所需的唯一变化边缘高度,使液态聚合物能够自然地沉降到任意底座内的目标卵形处方中。通过利用中性浮力抵消重力,液态聚合物仅由表面张力成形,随后固化,最终形成可直接安装到商用眼镜框架中的镜片,无需任何机械后处理。该方法已通过实验验证,展示了与标准眼镜框架兼容的镜片制造。该方法代表了一种完整的增材制造解决方案,实现了处方眼镜的端到端零浪费生产。

英文摘要:

The conventional manufacturing of ophthalmic lenses is an inefficient subtractive process where up to 97% of the material is discarded through grinding, polishing, and edging. Fluidic Shaping has emerged as a powerful alternative, utilizing surface tension to form optical-quality surfaces. While the approach enabled the creation of ophthalmic lenses without grinding or polishing, it was limited to lenses with a circular or elliptical footprint and still required the wasteful edging process to fit the lenses into the eyewear rims. Here, the Cookie Cutter algorithm is introduced, generalizing the Fluidic Shaping approach to be applicable to arbitrary domains, thus eliminating all subtractive processes. This mathematical framework calculates the unique varying edge-height required for a boundary frame, allowing a liquid polymer to naturally settle into a target spherocylindrical prescription within an arbitrary rim footprint. By utilizing neutral buoyancy to negate gravity, the liquid polymer is shaped solely by surface tension and subsequently cured, resulting in a lens that fits directly into commercial eyewear rims without any mechanical post-processing. The method is validated experimentally, demonstrating the fabrication of lenses compatible with standard eyewear rims. This approach represents a complete additive manufacturing solution, enabling end-to-end zero-waste production of prescription eyeglasses.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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