When illuminated by a coherent light beam, a periodic object will be imaged in near-field space at predictable intervals. This phenomenon is termed self imaging. Recordings of the intensity distribution of sine-wave gratings were made at several positions behind the gratings. The modulation of the images was calculated and used as a predictor of distance from the grating. Positional accuracies of one part in one-hundred fifty-eight were obtained.
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School of Photographic Arts and Sciences (CIAS)
Kingsley, Donald, "The modulation of sine-wave gratings at Fourier and Fresnel imaging points" (1970). Thesis. Rochester Institute of Technology. Accessed from
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