Abstract

The theoretical interpretation of the shearing interferometer based on the moiré method using the fourier image of the grating is described. To obtain a pattern with good contrast, the observing plane must coincide with the normal fourier image plane of the grating or with the reversed fourier image plane. The information obtained by this method is the first partial derivative and under certain conditions the second partial derivative of the distortion from the reference wavefront, which is planar or spherical. Applications to measurement of the phase gradient and lens aberration are shown.

© 1971 Optical Society of America

Spherical Aberration Measurement with Shearing Interferometer Using Fourier Imaging and Moiré Method

Shunsuke Yokozeki and Kazuo Ohnishi
Appl. Opt. 14(3) 623-627 (1975)

Shearing Interferometer Using the Grating as the Beam Splitter. Part 2

S. Yokozeki and T. Suzuki
Appl. Opt. 10(7) 1690-1693 (1971)

Modifying a Shear Interferometer to Obtain a Neutral Reference Beam*

Peter Langenbeck
J. Opt. Soc. Am. 61(2) 172-175 (1971)

Grating shearing interferometer with variable shear and fringe orientation

Krzysztof Patorski
Appl. Opt. 25(22) 4192-4198 (1986)

Use of Savart Plates in Grating Interferometers

T. H. Peek
Appl. Opt. 10(5) 1092-1096 (1971)