摘要
The use of submicron structures for structural coloration of surfaces has broad applications for color filters,projection displays,virtual reality,and anti-counterfeiting.Currently,structural color images lack high resolution due to low manufacturing accuracy.In this study,the axial-feed fly cutting(AFC)method is proposed to fabricate submicron grooves for the diffraction of visible light to create structural color images.We establish the relationship between the color information in the pixels of the original image and the parameters of the array units corresponding to the pixels.An algorithm to determine groove spacing and the tool path is established,and array units with the desired groove spacing are machined to reproduce the structural color images.The submicron grooves fabricated by AFC have high quality and good consistency.Due to the excellent diffraction performance of the machined grooves,images with high saturation and resolution can be reproduced.It is verified that images with various colors can be efficiently fabricated using the proposed method and algorithm.
基金
National Key Basic Research Program of China(No.2015CB059900)
National Natural Science Foundation of China(Nos.51775046 and 51875043)
the Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China(No.151052).
作者简介
Zhou Tianfeng is a professor of Beijing Institute of Technology and served as the deputy director of the Department of Manufacturing Engineering.He is doctoral tutor,young thousand and the chief scientist of young 973 program.His main research directions include mold materials preparation,mold manufacturing,glass molding,micro/nano manufacturing and so on.He has published more than 90 papers,including more than 50 SCI papers.He applied for more than 40 invention patens,and authorized more than 10 patents.zhoutf@bit.edu.cn;Yupeng He is a Ph.D.candidate at Key Laboratory of Fundamental Science for Advanced Machining.Beijing institute of technology.His research interests include the manufacturing and applications of niicro/nano structures,especially the optical micro/nano structures;Tianxing Wang is a master candidate at Key Laboratory of Fundamental Science for Advanced Machining.Beijing institute of technology.His research interests include the functional surface with micro/nano structures;Xiaobin Dong received his Ph.D.degree in mechanical engineering from Beijing Institute of Technology.His research interests include the machining of micro/nano structures;Peng Liu is a postdoctoral researcher at Beijing Institute of Technology,and his research directions include design and integration of optical systems,laser materials processing,numerical simulation,etc;Wenxiang Zhao is a professor at Key Laboratory of Fundamental Science for Advanced Machining,Beijing institute of technology.He mainly engages in the theoretical and technical research in the fields of high-eificiency precision cutting and grinding of difficult-to-machine materials;Yao Hu is an associate professor at Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology,Beijing Institute of Technology.Her research interests include the interferometry,grating detection and application;Jiwang Yan is a professor of Keio University.His research directions include ultra-Precision machining,micro/nano manufacturing,laser processing of materials,glass molding/imprinting,nanoindentation physics,nanomaterial-based fabrication.
