Chiang C
Appl Opt. 1975 Jan 1;14(1):177-9. doi: 10.1364/AO.14.000177.
Using geometrical optics, an oblique-shadow method is shown to generate moiré patterns, which under specific conditions can be interpreted as contour lines of the surface. The oblique-shadow method consists of illuminating a viewing grid with equal spaced parallel lines. The light can be either a point source or parallel light, the observation point can be either at finite distance or at infinity. Conditions for which moiré patterns become contour lines of the surface are given.
利用几何光学原理，一种斜投影法被证明可产生莫尔条纹，在特定条件下，这些条纹可被解释为表面的等高线。斜投影法包括用等间距平行线照亮一个观察网格。光源可以是点光源或平行光，观察点可以在有限距离处或无穷远处。文中给出了莫尔条纹成为表面等高线的条件。
