Single-axis four-mirror system: large spherical primary and small fields

Details Single-axis four-mirror system: large spherical primary and small fields Single-axis four-mirror system: large spherical primary and small fields

Aug 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3352..879b&link_type=abstract

Proc. SPIE Vol. 3352, p. 879-883, Advanced Technology Optical/IR Telescopes VI, Larry M. Stepp; Ed.

Physics

Optics

Scientific paper

A catoptric corrector of modest size can be used for large spherical primaries, easily integrated at the prime focus, this corrector gives back to the system, aspect and properties of 2-mirrors classical telescopes. In the last few years, progress in active and adaptative optics makes possible a lot of things, progress in measuring distances, new ideas on optical coatings, new materials and so on in a near future, all that makes the instrumentalist dreamy It is said that nobody knows today if the size of 3rd millennium telescopes will be limited or not by a theoretical, physical or technical phenomenon, thus let us imagine but with thoughtfulness because our projects will be surely restricted by financial considerations

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