reflektoritähystimet
Reflektoritähystimet, also known as reflecting telescopes, are optical instruments that use mirrors to observe distant objects. Unlike refractors that use lenses to bend light, reflectors rely on the reflective properties of polished surfaces. The primary mirror, typically a concave parabolic or spherical shape, collects and focuses incoming light to a secondary mirror. This secondary mirror then directs the focused light to an eyepiece or a detector where the image is observed or recorded.
The design of reflecting telescopes allows for larger aperture sizes compared to refractors, meaning they can
The most common type of reflector is the Newtonian telescope, invented by Sir Isaac Newton. It features