Refracting Telescope
A refracting or refractor telescope is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope). The refracting telescope design was originally used in spy glasses and astronomical telescopes but is also used for long focus camera lenses. Although large refracting telescopes were very popular in the second half of the 19th century, for most research purposes the refracting telescope has been superseded by the reflecting telescope.
Read more about Refracting Telescope: Invention, Refracting Telescope Designs, Technical Considerations, Notable Refracting Telescopes
Famous quotes containing the word telescope:
“The telescope at one end of his beat,
And at the other end the microscope....”
—Robert Frost (18741963)