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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
2.5. Two-Mirror Telescopes
17
hence the image position depends on the ray height at the first surface. We
consider the aberrations of a thick plate in more detail later.
2.5.
TWO-MIRROR TELESCOPES
We now apply the results of the preceding sections to the general class of
two-
mirror systems. In this section we are concerned only with the paraxial properties
(a)
(b)
Fig. 2.7. Schematic diagrams of two-mirror reflecting telescopes: (a) Cassegrain; (b) Gregorian.
Designated parameters
are
JFI
and725 height of ray at margin of primary and secondary, respectively; D,
telescope diameter =
2|JFI
I;
2\y2\, diameter of secondary mirror; R^ and
R2,
verte ...
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Publisher Resources

ISBN: 9780126298109