A reflecting telescope forms an image by using a combination of curved mirrors to focus light. It was invented as an alternative to the refracting telescope.
Telescope.
The Hubble Telescope uses both mirrors and lenses to focus on images.
A telescope with achromatic lenses.
Newtonian telescope
It is called a refracting telescope.
Refracting telescope.
A reflecting telescope has both magnifying mirrors and lenses to focus the image on the eyepiece. A refracting telescope uses only lenses to magnify and focus. A reflecting telescope can be much smaller, because the light can travel through the barrel of the telescope several times, being magnified with each reflection. This is why most large modern telescopes are reflectors.
The focus is between the two lenses, closer to the eyepiece
Refracting Telescope.
They all collect and focus light and other forms of electromagnetic radation.
Hubble Space Telescope
the reflecting telescope uses mirrors and lenses. The refracting telescope does not include the mirrors.