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catadioptric

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catadioptric [‚kad·ə‚dī′äp·trik]
(optics)
Involving both reflection and refraction of light.


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Talks that day included Jim Hysom discussing a new type of catadioptric telescope and David Allen, a professional astronomer from Cambridge relating his recent observing trip to do infra-red astronomy with the 30-inch reflector of the Physics Department of the University of Minneapolis in Minnesota, USA.
The Catadioptric or Mirror-lens Telescope A Mirror-lens or Catadioptric telescope uses a good combination of these lenses and mirrors.
Catadioptric telescopes are a combination of refractor and reflector and are quite portable even at large apertures.
 
 
 
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