Simple prescriptions for estimating three-fold astigmatism
Author/Authors :
Saxton، نويسنده , , W.O، نويسنده ,
Pages :
5
From page :
239
To page :
243
Abstract :
Optimal expressions are given for the estimation of three-fold astigmatism (and other aberrations) following measurement either of the image displacements or of the diffractogram shapes for sets of four images with mutually orthogonal injected beam tilts.
