Casting of freeform ophthalmic lenses at a ferrofluidic surface

眼科透镜生产技术正朝着个性化自由形式设计发展，以响应 个别患者的特殊需求。自由成形工艺允许校正高阶像差 这是常规的传统人工晶状体透镜制造无法解决的问题。的 本项目的目的是通过以下方法评估生产自由形状眼用透镜的可行性： 将单体（液态树脂）浇铸在铁磁流体表面上。铁磁流体可以通过施加 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来生产， 在适当形状的铁磁流体表面上使用合适的树脂。该项目的具体目标包括： 确定最佳单体和铁磁流体候选物，在实验室中复制测试表面 当铁磁流体形状由磁场控制时，固化过程的设置、测试和 球面原型 该项目汇集了学术研究人员，具有铁磁流体，聚合物化学和表面化学方面的专业知识。 利用磁场进行控制，以及熟悉制造和 销售隐形眼镜。如果证明是可行的，新技术将导致更多，负担得起的， 加拿大的眼镜。

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.