![]() Galileo made some improvements and first used the telescope for astronomy. The first telescope invented was a refractor invented by Dutch lensmaker Hans Lippershey in 1608. There are various designs of reflecting telescopes, but the original design by Isaac Newton is still popular today.Įxample of a Newtonian reflecting telescope In order to get the light out of the telescope, another mirror is used to direct the light to an eyepiece. A concave mirror is used to gather light and reflect it back to a focal point. Reflecting telescopes use mirrors instead of lenses to focus the light. This makes the object seem much closer than it really is. This lens takes the light from the focal point and spreads it out across the retina of your eye. This lens is a convex lens that bends the incoming light rays to a focal point within the telescope. The first lens is called the objective lens. ![]() The basic refracting telescope has two lenses. You can go here to learn more about the refraction of light using lenses. Refracting telescopes use lenses to bend the light to a specific focal point such that the object will be magnified to the viewer. These telescopes are called reflecting telescopes. The other type uses mirrors to focus the light of the image. Telescopes that use lenses are called refracting telescopes. One type uses lenses to magnify the image.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |