Design of an online customization platform for nearsighted spectacles based on additive manufacturing

Abstract

Currently, there are many issues with customizing nearsighted spectacles. Most designs are based on a universal standard of 25 degrees, and the frames are difficult to customize to fit the wearer’s face. This paper introduces a method for utilizing 3D printing to manufacture entire spectacles, known as additive manufacturing (AM), for parametric customization. Firstly, a user-friendly human-machine parameter platform is obtained through secondary development in SolidWorks using Python. The customization parameters of spectacles can be easily implemented on this platform. Spectacles’ parametric customization mainly includes feature scanning, parametric platform modeling, and spectacles manufacturing. In addition, after designing the model, it is manufactured through 3D printing. After passing the spectacles’ quality testing, their appearance, size accuracy, and light transmittance all meet the required standards. Additionally, at initial velocities of 10m/s and 20m/s, the maximum allowable stress of the glasses meets the following requirements: σ≤103MPa, and the deformation also meets Δl≤0.5mm. The parametrically customized spectacles designed in this study meet the quality standards.