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Infrared Telescopes
  • telescope An afocal optical device made up of lenses or mirrors, usually with a magnification greater than unity, that renders distant objects more distinct, by enlarging their images on the retina.
  • infrared telescope A telescope that transmits, enlarges and converts infrared images.
  • infrared (IR) The invisible portion of the electromagnetic spectrum that lies between about 0.75 and 1000 µm. Radiation in the near-infrared produces a sensation of heat.
  • line of sight (LOS) The line of vision; the optical axis of a telescope or other observation system. The straight line connecting the object and the objective lens of the viewing device.
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