Contrast of shadow moiré at high-order Talbot distances

Changwoon Han; Bongtae Han

doi:10.1117/1.1849221

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1 February 2005 Contrast of shadow moiré at high-order Talbot distances

Changwoon Han, Bongtae Han

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Optical Engineering, 44(2), 028002 (2005). https://doi.org/10.1117/1.1849221

Abstract

The contrast of shadow moiré at high-order Talbot distances is studied. An exact solution for the contrast of shadow moiré fringes is developed from the diffraction phenomenon and its validity is corroborated experimentally. The result is combined with an additional effect from the finite aperture of the camera to propose a complete expression for the contrast of shadow moiré fringes. The results can guide the design of shadow moiré configurations with high-order Talbot distances for high-sensitivity measurements.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Changwoon Han and Bongtae Han "Contrast of shadow moiré at high-order Talbot distances," Optical Engineering 44(2), 028002 (1 February 2005). https://doi.org/10.1117/1.1849221

Published: 1 February 2005

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