The History Handout - Binoculars

THE HIST RY I'm in Coupons HANDOUT Binoculans In the 17th century, exploration of using telescopes mounted side by side for binocular vision has started. The earliest binoculars used Galilean optics named after Galileo Galilei who became the first man to see the craters of the moon. Galilean designs were widely used in the military up until the end of 19th century with the development of porro prism binoculars. In 1890's Carl Zeiss company has refined porro prism binoculars, a patent of an Italian optician named Ignazio Porro, paving the way to improvement of prism binoculars. The Short Telescope, invented by James Short who has built over 1,360 telescopes, was referred to as the cdassic Gregorian telescope of the 18th century. Medium-sized binoculars, utilized by amateur astronomers of today, can now reasonably detect a number of solar system objects that are invisible to the human eye. www.imin.com