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Optical Engineering

Toward superfast three-dimensional optical metrology with digital micromirror device platforms
Author(s): Tyler Bell; Song Zhang
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Paper Abstract

Decade-long research efforts toward superfast three-dimensional (3-D) shape measurement leveraging the digital micromirror device (DMD) platforms are summarized. Specifically, we will present the following technologies: (1) high-resolution real-time 3-D shape measurement technology that achieves 30 Hz simultaneous 3-D shape acquisition, reconstruction, and display with more than 300,000 points per frame; (2) superfast 3-D optical metrology technology that achieves 3-D measurement at a rate of tens of kilohertz utilizing the binary defocusing method we invented; and (3) the improvement of the binary defocusing technology for superfast and high-accuracy 3-D optical metrology using the DMD platforms. Both principles and experimental results are presented.

Paper Details

Date Published: 1 April 2014
PDF: 10 pages
Opt. Eng. 53(11) 112206 doi: 10.1117/1.OE.53.11.112206
Published in: Optical Engineering Volume 53, Issue 11
Show Author Affiliations
Tyler Bell, Iowa State Univ. (United States)
Song Zhang, Iowa State Univ. (United States)


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