Acta Optica Sinica, Volume. 4, Issue 6, 528(1984)
Theoretical analysis on contrast reversal of a rectangular grating encoded picture
A new theoretical analysis of the contrast reversal images for the zeroth and other diffraction order encoded by a rectangular grating is given. According to the principle that the contrast reversion is formed by subtraction of amplitudes, this paper proposed a physical model for the transmittance of an encoded picture. By means of Fourier analysis, a correct result is derived which fits well with the experimental results.
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WANG SHUYING, ZHANG JINGJIANG, PENG FANGLIN. Theoretical analysis on contrast reversal of a rectangular grating encoded picture[J]. Acta Optica Sinica, 1984, 4(6): 528