时     间：2019年6月17日 15:00-16:30

地     点：光电国家研究中心 A302

报 告 人：周天丰 教授,  北京理工大学教授

邀 请 人：熊伟 教授

报告题目(Title)：

Precision glass molding technology for micro/nano structures

微纳阵列结构精密模压成形技术

报告摘要 (Abstract)：

微纳阵列是由单元特征尺寸为数百纳米到数十微米的三维结构阵列或透镜阵列组成的玻璃光学元件，单位面积内微结构单元数量巨大，具有特殊的几何光学特性，主要用于高精度三维定位用微纳结构阵列与高清晰三维成像。本报告重点介绍光学微纳阵列的高效精密模压制造技术，以单元极小化、面积超大化、精度极限化和形状复杂化为光学微纳阵列制造技术目标。以新型模具材料制备，超精密微纳切削加工和精密模压成形为技术手段，重点介绍微模具材料制备方法，微纳模具超精密切削制造及在位测量技术、玻璃模压制造技术及相应的表征评价方法。通过理论与技术创新，实现大面积高密度玻璃光学微纳阵列的高效超精密跨尺度制造。

The micro/nano structures belong to glass optical components and composed of large quantity of three-dimensional structure arrays or lens arrays with cell feature size of several hundreds of nanometers to several tens of micrometers, thus have special geometric optical characteristics and mainly used for high precision three-dimensional positioning and high-definition three-dimensional imaging. This report focuses on the high-efficiency precision glass molding technology of optical micro/nano structures with the manufacturing goals of minimal cell feature size, extremely large area, highest precision and complex shape. The new mold materials fabrication, ultra-precision micro/nano cutting and precision press forming are the technical means to achieve these goals. Thus in this report, the fabrication methods of mold materials, ultra-precision manufacturing of micro/nano mold by cutting, on-machine measurement technology, glass molding technology and the corresponding characterization evaluation methods would be introduced in detail. Through theoretical and technological innovations, the high-efficiency, ultra-precision and cross-scale manufacturing of large-area and high-quantity-density glass optical micro/nano structures could be realized.

报告人简介（Biography):

周天丰，北京理工大学教授，制造工程系副主任，青年973首席科学家。主要研究方向包括模具材料制备、模具制造、玻璃模压成形、微纳加工等。主持国家重点基础研究发展计划青年科学家专题项目(青年973)项目，国家自然科学基金，北京市自然科学基金等。发表论文90余篇，其中SCI论文50余篇；申请发明专利40余项，授权专利10余项；2016年荣获霍英东教育基金。2018年在中日超精密加工国际会议上荣获“青年学者奖”奖。

Zhou Tianfeng，professor of Beijing Institute of Technology，serves as deputy director of Department of Manufacturing Engineering. His research mainly focus on mold materials fabrication, mold manufacturing, glass molding process, micro/nano manufacturing, etc. He hosted a series of important projects including National Basic Research Program of China,  National Natural Science Foundation of China, Beijing Natural Science Foundation of China, etc. He has published over 90 journal papers with over 50 SCI papers and applied for more than 40 invention patents (over 10 authorized patents). He was awarded the Fok Ying-Tong Education Foundation in 2016 and received the ‘Young Researcher Award’ at the China-Japan International Conference on Ultra-Precision Machining in 2018.