| What
is a "Maksutov"? |
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Named after Russian optician Dmitri Maksutov (1896-1964),
the Maksutov telescope is a type of Cassegrain reflecting telescope that
uses a spherical primary mirror in conjunction with a meniscus-shaped
correcting plate at the entrance pupil in order to correct for spherical
aberration. It differs from the similar Schmidt-Cassegrain telescope design
in that the meniscus-shaped corrector plate allows for the use of an easily
fabricated spherical secondary mirror rather than the hyperbolic mirror
required for the Schmidt telescope. The Maksutov design also has excellent
correction for off-axis aberrations such as coma, which is a significant
problem in the simpler Newtonian reflecting telescope. In some configurations,
the Maksutov secondary mirror can be generated by simply silvering the
central portion of the inner surface of the corrector plate. In this type
of configuration, the Maksutov design has been mass-marketed as an inexpensive,
very compact small-aperture telescope by several major manufacturers.
The chief disadvantage of the Maksutov design is that it does not scale
up well to even moderate apertures (>200mm), since the corrector plate
rapidly becomes prohibitively large and heavy as the aperture increases. |
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Designs |
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 In
general, there are two kinds of telescope systems. One
is the Optical Telescope. This is our main manufacturing
base. The other is the radio telescope, which is used
for National & Scientific research . We manufacture
only a few of these. |
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