Astronomical telescope is an important means of celestial objects, observations can not exaggerate the birth of say, no telescope and development, there can be no modern astronomy. Along with the telescope in various aspects and improve the performance, astronomy are also experiencing a huge leap and pushed the human understanding of the universe.
From the first plane optical telescopes to radio telescope in the birth of more than 300 years, optical telescopes have been the most important tool astronomical observations to optical telescope, below the development of a simple introduction.
Fold the reflex telescope first appeared in 1814. In 1931, Germany optical home with a unique close schmidt andante paper-cover aspherical thin lens as the correct lens, and spherical reflector cooperate to make can eliminate ball differentials and off-axis like poor schmidt type reflecting telescopes, this telescope folding light dint strong, the view, like difference is small, suitable for shooting pictures of large area, especially on sky 18mag nebula photographing result very prominent. Schmidt telescope has become an important tool for astronomical observations.
In 1940 mark Sue Cardiff with a moon torre as correct lens shape lens, creating another type of discount of its two reflecting telescopes, the surface is two curvature different sphere, differ not quite, but curvature and thickness are large. It's all surfaces are the sphere, the correct than schmidt type telescope grinding, a cylindrical tube plate easily is short, but view than schmidt type telescope small, demand for glass also higher.
Due to fold reflex telescope can juggle refraction and reflected the advantages of two telescope, very suitable for amateur astronomical observation and astronomical photography, and obtained the general stargazers alike.
已发。半手工半软件翻译的。不像楼上 一看就是用软件的。满意后记得加分给我。
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