Takasaki H
Appl Opt. 1970 Jun 1;9(6):1467-72. doi: 10.1364/AO.9.001467.
A technique observing contour lines of an object by the use of moiré is developed. Shadow of an equispaced plane grating is projected onto an object by a point source and observed through the grating. The resulting moiré is a contour line system showing equal depth from the plane of grating if the light source and the observing point lie on a plane parallel to the grating. A technique to wash away the unwanted aliasing moiré optimization of contour line spacing and visibility and the results of the application are described.
开发了一种利用莫尔条纹观察物体轮廓线的技术。通过点光源将等间距平面光栅的影子投射到物体上，并通过该光栅进行观察。如果光源和观察点位于与光栅平行的平面上，则产生的莫尔条纹是一个等高线系统，显示出与光栅平面的深度相等。描述了一种消除不需要的混叠莫尔条纹、优化等高线间距和可见性的技术以及应用结果。
