original question: What type is an [Optical telescope]?
answer: reflecting telescope
answer type: Telescope principle type.
auxiliary information: An optical telescope is a telescope that gathers and focuses light, mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct view, or to make a photograph, or to collect data through electronic image sensors. There are three primary types of optical telescope: refractors, which use lenses reflectors, which use mirrors catadioptric telescopes, which combine lenses and mirrors A telescope's light gathering power and ability to resolve small detail is directly related to the diameter of its objective. The larger the objective, the more light the telescope collects and the finer detail it resolves. People use telescopes and binoculars for activities such as observational astronomy, ornithology, pilotage and reconnaissance, and watching sports or performance arts.
Which type of telescope does an [Optical telescope] represent?