Meade DS-114AT Instruction Manual page 2

Reflecting Telescopes use a concave primary mirror to collect light
and form an image. In the Newtonian type of reflector, light is reflect-
ed by a small, flat secondary mirror to the side of the main tube for
observation of the image. Light is collected by a concave mirror and
brought to a focus at F.
Concave
Mirror
Reflecting Telescope
Secondary
Mirror
F
Eyepiece