Simple Telescope
The first telscopes used lenses to gather more light and to magnify the image.
A refracting telescope uses two converging lenses.
The objective lens brings rays of light from a distant object to a point to form an image.
The eyepiece lens acts as a magnifying glass and magnifies this image.
Reflecting Telescope
A reflecting telescope uses a curved mirror to gather light from distant objects and a converging lens as an eyepiece to magnify the image. If a telescope needs to see very dim objects, it is easier to make a very large mirror than a very large lens. reflecting telescopes give better guality images than reflecting telescopes of similar sizes.
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