Refracting telescope.
It all depends on if the telscope is a refractor, or a reflector. Reflectors have a convex mirror that bends the reflection on to a flat mirror that angles the magnified reflection to the eyepiece. Refractors use to convex lenses that bend the image and light, magnifying the view to the eypiece.
Newtonian telescope
Telescope.
refractor
Eyepiece, Primary Mirror, Secondary Mirror, Prime Focus.
Refracting Telescope.
the reflecting telescope uses mirrors and lenses. The refracting telescope does not include the mirrors.
the reflecting telescope uses mirrors and lenses. The refracting telescope does not include the mirrors.
Optical!!
optical telescope
They are not the same. Convex lens bulge outward, and concave lenses go in ward. Convex lenses focus light, and concave lenses spread light out.
The Hubble Telescope uses both mirrors and lenses to focus on images.
They use convex lenses because they need to focus the light IN to the eye. Convex focuses in while concave spreads the light out. So, they use convex lenses.
It all depends on if the telscope is a refractor, or a reflector. Reflectors have a convex mirror that bends the reflection on to a flat mirror that angles the magnified reflection to the eyepiece. Refractors use to convex lenses that bend the image and light, magnifying the view to the eypiece.
A telescope with achromatic lenses.
The focus is between the two lenses, closer to the eyepiece
Convex lenses bend light and focus it one one spot. -anonymous18_K