Here's a breakdown:

Refracting Telescopes:

* How they work: These telescopes use lenses to bend (refract) light and focus it on a focal point.

* Components: They consist of a primary objective lens and an eyepiece lens.

* Advantages: Relatively compact, less maintenance.

* Disadvantages: Chromatic aberration (color fringing) can occur, especially in larger lenses.

Reflecting Telescopes:

* How they work: These telescopes use mirrors to reflect light and focus it on a focal point.

* Components: They consist of a primary mirror, a secondary mirror (often smaller), and an eyepiece.

* Advantages: No chromatic aberration, can be built much larger than refracting telescopes.

* Disadvantages: Can be more complex and prone to misalignment.

Combination Telescopes:

* How they work: Some telescopes combine both refraction and reflection. A common example is the Cassegrain telescope, which uses a primary mirror and a secondary mirror to focus light.

In summary:

* Refracting telescopes use lenses to refract light.

* Reflecting telescopes use mirrors to reflect light.

* Combination telescopes use both lenses and mirrors.

Let me know if you'd like more detail on any of these types of telescopes!