optical telescope
Sign in to savetelescope which is used to focus light from the visible part of the electromagnetic spectrum
~40 min read
Encyclopedic overview
The Large Binocular Telescope at the Mount Graham International Observatory in Arizona uses two curved mirrors to gather light
An optical telescope gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual inspection, to make a photograph, or to collect data through electronic image sensors.
Excerpted from Wikipedia’s “optical telescope” article, available under the CC BY-SA 4.0 licence.