T. Santhanakrishnan et al., A NEW OPTICAL CONFIGURATION IN SPECKLE INTERFEROMETRY FOR CONTOURING OF 3-DIMENSIONAL OBJECTS, Optics communications, 152(1-3), 1998, pp. 19-22
A novel optical configuration for contouring of three-dimensional obje
cts is presented. In this configuration (referred to as image plane sp
eckle interferometry) an object point is viewed symmetrically with res
pect to the surface normal and combined coherently at the image plane
of the imaging system. This configuration is simple to implement and p
rovides the possibility to vary the sensitivity over a wide range. Det
ailed theory and experimental results are presented. (C) 1998 Elsevier
Science B.V. All rights reserved.