One step machining of hierarchical optical structures for autostereoscopic images

Yaoke Wang, Ping Guo*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)441-444
Number of pages4
JournalCIRP Annals
Issue number1
StatePublished - Jan 2022


  • Autostereoscopy
  • Cutting
  • Optical

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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