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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
7.4. Achromatic Schmidt Telescope
7.4. ACHROMATIC SCHMIDT TELESCOPE
177
The wavelength range over which
a
Schmidt telescope with
a
single element
corrector gives images
of
acceptable size
is
set
by
the dispersive characteristics
of
the corrector. This range
can be
extended
by
replacing
the
single-element plate
with
a
two-element corrector, with each element
a
glass
of
different dispersive
characteristics
and
plate parameters
to
make
the
combination achromatic.
In
this
section
we
outline
the
procedure
for
making
an
achromatic corrector
and
apply
the results
to an
example
of a 1-m
Schmidt telescope.
A cross section
of
a
two-element corrector
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Publisher Resources

ISBN: 9780126298109