Abstract

The construction of a Drew type variable shear wavefront shearing interferometer, useful for testing optical systems of large aperture and short focal length, is described. The mechanical arangement, used for adjustment of the mirrors and the dividing plate, and a novel arrangement to achieve white light compensation easily, are described. Sheared interferograms of some lenses are shown.

© 1969 Optical Society of America

A Scanning Interferometer for Wavefront Aberration Measurements

A. Ashton and A. C. Marchant
Appl. Opt. 8(10) 1953-1955 (1969)

Lens Testing with a Simple Wavefront Shearing Interferometer

D. Nyyssonen and J. M. Jerke
Appl. Opt. 12(9) 2061-2070 (1973)

Evaluation of Large Aberrations Using a Lateral-Shear Interferometer Having Variable Shear

M. P. Rimmer and J. C. Wyant
Appl. Opt. 14(1) 142-150 (1975)

Large aperture ac interferometer for optical testing

Duncan T. Moore, Richard Murray, and Fernando B. Neves
Appl. Opt. 17(24) 3959-3963 (1978)

A Compact Radial Shearing Interferometer Based on the Law of Refraction

M. V. R. K. Murty
Appl. Opt. 3(7) 853-857 (1964)