Development of an integrated approach for design, precision manufacturing and metrology of vari-focal lenses and its application perspectives

本研究的主要目的是研究变焦透镜设计、精密制造和计量一体化方法的科学知识和理论认识及其应用前景。总的来说，这项研究代表了对工业规模自由曲面光学制造的全面理解，同时进一步结合表面功能特征，如表面防尘/自清洁和防雾/结冰方面。该研究的独特目标包括对该研究领域过去和现在的努力和尝试的批判性回顾，总结最新的技术，并确定开发多焦透镜产品的知识差距。通过考虑光学表面的防尘/自清洁和防雾/结冰特性，建立变焦透镜的点对点映射和设计策略。研究了能够产生高精度自由曲面光学特征的超精密金刚石车削工艺，并开发了相关的CAD/CAM和CNC刀具路径算法，用于高精度集成设计和CNC加工。设计用于评价变焦透镜加工精度及其光学性能的相关计量测量系统，是设计-制造-测量一体化方法的重要组成部分。针对工业规模超精密生产的要求和额外的定制要求，如表面防尘/自清洁和防雾/结冰等，进一步研究集成方法的实施和应用前景。

The principal aim of this research is to study scientific knowledge and theoretical perception in developing the integrated approach for design, precision manufacturing and metrology of vari-focal lenses and its application perspectives. Overall, this research represents a comprehensive understanding of industrial scale freeform optics manufacturing while further combining functional surface features such as surface anti-dust/self-cleaning and anti-mist/icing aspects. The distinctive objectives of the research includeCritical review of the past and present endeavour and attempts in this research field, and summarizing the state-of-the-art and identifying the knowledge gaps in developing vari-focal lenses products. Establishing point-to-point mapping and design strategy for vari-focal lenses by taking additional account of the anti-dust/self-cleaning and anti-mist/icing features on the optic surfaces. Investigation of ultraprecision diamond turning processes those enable to generate precision freeform optical features, and developing the associated CAD/CAM and CNC tool paths algorithms for high precision integrated design and CNC machining. Design of the associated metrology measurement system for assessing the machining accuracy of vari-focal lenses and their optical performances, which is an essential part of the integrated design-manufacturing-measurement approach.Further investigation of the integrated approach particularly on its implementation and application perspectives against the requirements for industrial scale ultraprecision production and additional bespoke requirements such as the surface anti-dust/self-cleaning and anti-mist/icing features, etc.