The history of the optical system of astronomical telescopes

The Cincinnati Observatory's refracting telescope, built in 1848, is the world's first refracting telescope. The astronomical telescope manufacturer tells us the history of the optical system of the astronomical telescope.

Refracting mirrors are the earliest forms of optical telescopes, and the first practical refracting telescope appeared in Holland in 1608. It was independently invented by three different people, Hans Ripshi and Yang Sen, the eyeglasses of the mill, and the Jacob. Galileo heard the invention by accident in Venice around May 1609. It improved the optical lens of the telescope and made his own telescope based on his understanding of the refraction. Galileo then presented the details of his inventions to the world, and presented the instrument to the then Grand Duke of Venice, Donato. Galileo may claim to have invented refracted telescopes independently, but did not hear others do the same instruments.

What is the refraction principle of refracting telescope? Refracting telescope is a telescope that uses lens to make objective lens and refraction imaging. The original design of the refracting telescope was used for investigation and astronomical observation, but it was also used on other devices, such as binoculars, long focal distance camera lenses. The optical systems of the more commonly used refracting telescopes have two forms: the Galileo telescope and the Kepler type telescope, whose advantages are that the imaging is distinct and sharp; the disadvantage is the chromatic aberration.