Aberration-free moire profilometry-Analysis, simulation and implementation of the optimal setup geometry

作者：Buytaert Jan A N^*; Ribbens Bart; Vanlanduit Steve; Dirckx Joris J J

来源：Optics and Lasers in Engineering, 2012, 50(8): 1119-1129.

DOI：10.1016/j.optlaseng.2012.01.006

• Aberration-free
• Telecentric
• Liquid crystal
• Projection moire profilometry
• Planar fringes

The accuracy of fringe projection profilometry strongly depends on the setup. In this article different setups are discussed, and compared using custom-made freeware simulation software. The best suited geometry for aberration-free measurements on small objects is implemented in a practical setup. %26lt;br%26gt;By using specific telecentric lenses and different grid periods, both for projection and observation, we obtain a close to aberration-free phase-shifting projection moire profilometer. In combination with liquid crystal display panels, the setup becomes practical, versatile and user-friendly.

• 出版日期2012-8