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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 13,
  • Issue 4,
  • pp. 464-467
  • (2009)

Ultra High-speed 3-dimensional Profilometry Using a Laser Grating Projection System

Open Access Open Access


The grating projection method with phase-shifting technique is very useful in measuring the 3-dimensional (3D) shape with high accuracy and speed. In this work, we have developed an ultra high-speed digital laser grating projection system using a high-power laser diode and a highsensitivity CMOS camera. With our system, the optical measurement required to find out the profile of a 3D object could be carried out within 2.6 ms, which is a significant (~10 times) improvement compared with those of the previous studies.

© 2009 Optical Society of Korea

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