Casting of freeform ophthalmic lenses at a ferrofluidic surface

在铁磁流体表面铸造自由曲面眼科镜片

• 批准号: 485578-2015
• 负责人: Ritcey, Anna
• 金额: $ 0.91万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=585061
• 关键词: Casting; freeform; ophthalmic; lenses; ferrofluidic

Ophthalmic lens production technology is moving towards personalized freeform design to respond to the specific needs of individual patients. The freeform process allows for the correction of higher-order aberrations of the patient's eye that cannot be accounted for by regular, traditional eyeglass lens manufacturing. The objective of the current project is to assess the feasibility of producing freeform-like ophthalmic lenses by casting a monomer (liquid resin) on a ferrofluid surface. Ferrofluids can be deformed by the application of a magnetic field. In this innovative approach, personalized lenses will be produced by casting and curing a suitable resin at a ferrofluid surface of appropriate shape. The specific objectives of the project include the identification of optimal monomer and ferrofluid candidates, the replication of test surfaces in a laboratory setting, testing of the curing process when ferrofluid shape is controlled by a magnetic field and fabrication of a spherical surface prototype. The project brings together academic researchers, with expertise in ferrofuids, polymer chemistry and surface control using magnetic fields, and industrial partners with an intimate knowledge of the manufacture and marketing of eyeglass lenses. If shown to be viable, the new technology will lead to more, affordable, more precise eyewear for Canada.

眼镜片生产技术正在走向个性化的自由设计，以响应 个别病人的特定需求。自由形式的过程允许更高阶像差的校正 这是常规的、传统的眼镜制造所不能解决的问题。这个 当前项目的目标是评估通过以下方法生产自由形状眼镜片的可行性 在磁流体表面浇注单体(液体树脂)。磁流体可以通过应用 磁场。在这种创新的方法中，个性化的镜片将通过铸造和固化 在形状合适的磁流体表面使用合适的树脂。该项目的具体目标包括 最佳单体和候选磁流体的鉴定、实验室中测试表面的复制 当磁流体形状受磁场控制时的固化过程的设置、测试以及制造 球面原型。 该项目汇集了学术研究人员，他们拥有液体铁、聚合物化学和表面的专业知识。 使用磁场进行控制，以及对制造和生产有深入了解的工业合作伙伴 眼镜镜片的营销。如果被证明是可行的，这项新技术将带来更多、负担得起、更 加拿大的精密眼镜。