Definitions for "Optical telescope"
and radio telescope. Telescopes are instruments that are used to observe radiation from a distant object. They can produce an image of the object or enable the radiation to be analysed. Optical telescopes are used to observe wavelengths of visible light. They make distant objects distinct and visible by producing a magnified image of the object and by collecting more light than the naked eye. There are two main types of optical telescopes: refracting telescopes use lenses and reflecting telescopes use mirrors. Radio telescopes are used to observe longer wavelengths of radiation (radio waves), with large dishes to collect and concentrate the radiation onto antennae. For more information see It takes more than one kind of telescope to see the light ([email protected], USA)
an astronomical telescope designed to collect and record light from cosmic sources
an optical tool that gathers and focuses electromagnetic