Reflector Telescope

Modern astronomical telescopes are typically reflector telescopes. Gregorian telescopes, Newtonian telescopes, and Cassegrain telescopes are all variations on the basic design. Here we’ll take a closer look at these three types of telescopes, and then go on to look at a reflector telescope produced with modern materials: the silicon carbide reflector telescope. 

Three Types of Telescopes: A Closer Look

Newtonian Reflector Telescope

The original Newtonian reflector telescope was designed by Isaac Newton in 1668. This type of telescope is based on a primary mirror (parabolic surface) and a plane secondary mirror and the light path is deflected to the side of the lens barrel.  To read the entire article, visit Avantier.