期刊
CIRP ANNALS-MANUFACTURING TECHNOLOGY
卷 71, 期 1, 页码 441-444出版社
ELSEVIER
DOI: 10.1016/j.cirp.2022.04.041
关键词
Optical; Cutting; Autostereoscopy
资金
- McCormick School of Engineering, Northwestern University, Evanston, IL, USA
This work presents a new optical design and machining strategy to achieve the one step generation of hierarchical optical structures on a flat surface for autostereoscopic effects. The design combines V-groove arrays as a parallax barrier for stereopsis and integrated diffraction gratings with variable grating spacing for motion parallax. Using tool geometry and elliptical tool vibration, the hierarchical structures are machined simultaneously to form V-grooves and generate blazed gratings. An autostereoscopic image with strong depth perception and high pixel density is fabricated.
This work presents a new optical design and the corresponding novel machining strategy to achieve the one step generation of hierarchical optical structures on a flat surface for autostereoscopic effects. The hierarchical structures combine V-groove arrays as a parallax barrier for stereopsis and integrated diffraction gratings with variable grating spacing for motion parallax. The multi-scale surface structures are machined simultaneously using the tool geometry to form V-grooves while utilizing elliptical tool vibration to generate blazed gratings concurrently. An autostereoscopic image with strong depth perception is fabricated with a pixel density exceeding 1,660 pixels per inch. (C) 2022 CIRP. Published by Elsevier Ltd. All rights reserved.
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