Generation of Surface Contours by Moiré Patterns
D. M. Meadows, William Otis Johnson, Jont B. Allen · Applied Optics · 1970
For a number of years, observations have been made of contour-like patterns created by the moiré interference of a grid with its shadow cast onto a surface. The conditions under which these patterns correspond to planar contours are derived, and systems to generate these contours are suggested. It is shown that moiré contour patterns provide a useful and flexible means of contouring surfaces. Experimental results are presented.