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Astronomical Optics, 2nd Edition
book

Astronomical Optics, 2nd Edition

by Daniel J. Schroeder
September 1999
Intermediate to advanced content levelIntermediate to advanced
478 pages
21h 54m
English
Academic Press
Content preview from Astronomical Optics, 2nd Edition
4.5. Aberration Compensation 61
At this stage five third-order aberrations have been identified: spherical
aberration, coma, astigmatism, distortion, and curvature of field. The first of
these is independent of field angle, but all others depend on some power of
6.
The
first three aberrations in this list affect image quality, while the last two affect only
image position.
From Eqs. (4.2.7b) and (4.4.1) we see that the transverse aberrations depend
on aperture radius y (or r) and field angle 9 according to the relation
transverse aberration a
y^O"",
(4.4.2)
where n-\-m = 3. Hence each of these aberrations is called a third-order
aberration
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Publisher Resources

ISBN: 9780126298109