Multiple Source Moiré Patterns

Abstract

Moiré patterns produced by viewing a large number of spatially periodic light sources through an appropriate grid structure of similar periodicity are sometimes characterized by a spatial location away from the grid structures. This paper gives a simple geometrical obstruction theory of this effect. It also demonstrates that the results predicted are observable.

<title>Analysis Of Grating Imaging And Its Application To Displacement Metrology</title>

“…1/F = 1/v + 1/u (5) A is a constant and the phase cp(x0,x2) can be neglected since the image irradiance is the quantity of interest.…”

“…The description of such systems based on geometric optics is quite straight forward (5), while the effects of diffraction have also been included by one author") and used to obtain magnified displacements of fine grids. In this paper the above results are generalized to describe the response of a periodic system illuminated by a periodic object and it is shown that the transfer function is given by the autocorrelation of a modified pupil function.…”

P‐213: Simulation of Color Moiré Pattern in LCD‐based Metal Mesh Touch Screen

“…Moiré pattern has been studied for years [4][5][6][7] and severely hindered the enhancement of optical flavor [8,9]. Metal mesh is a periodical structure which itself will makes the interference more complicated.…”

“…cfv v v d m n L p d (5) and "&" denotes that both right and left of the symbol must be satisfied. All the formulas stated above are on condition that metal mesh touch screen is not tilted.…”