White light projection speckle method for generating deflection contours

F. P. Chiang, M. Bailangadi

Applied Optics · 1980 · 12 citations · 6 references

Concepts

Abstract

By projecting a random speckle pattern with a simple slide projector onto a plate and recording the speckle shift by double exposure before and after the deflection of the plate, deflection contour fringes of various sensitivities can be obtained by optical Fourier filtering.

References

6