- Hubble Space Telescope - Cassegrain Design
The Cassegrain Optical system of the Hubble Space Telescope is shown feeding light-ray bundles to the COSTAR and WFPC2.
http://hubble.nasa.gov/image-gallery/mission-images/sm1.html
(Added: Sun Oct 27 2002)
- Schmidt-Cassegrain
All of the professional telescopes built recently, from Hubble to Keck, are based on the folded Cassegrain design.
http://www.starizona.com/basics/sct.html
(Added: Sun Oct 27 2002)
- Schmidt-Cassegrain Telescope
The Schmidt-Cassegrain class of telescope (also called SCT) was named for the German astronomer Bernhard Schmidt and French sculptor Sieur Cassegrain. This hybrid telescope design has outpaced both the reflectors and refractors in the last decades to become the most popular telescope among amateur astronomers, especially among astrophotographers.
http://spaceguard.ias.rm.cnr.it/tumblingstone/dictionary/tel-schmidtcassegrain.htm
(Added: Sun Oct 27 2002)
- Schmidt-Cassegrain Telescopes
Celestron offers this description of the Schmidt-Cassegrain Telescope design.
http://www.celestron.com/schmidt.htm
(Added: Sun Oct 27 2002)
- The Classical Cassegrain
In the classical Cassegrain telescope the primary mirror takes a paraboloid shape. This brings the light of any object in the field of the telescope to a focus near the top end of the tube, called the prime focus.
http://www.rog.nmm.ac.uk/leaflets/telescopes/telescopes.html#Anchor4
(Added: Sun Oct 27 2002)
- Twin Keck Telescopes
Learn more about the twin Keck Telescopes, the world's largest optical and infrared telescopes. Each stands eight stories.
http://www.astro.caltech.edu/mirror/keck/realpublic/gen_info/gen_info.html
(Added: Sun Oct 27 2002)
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