Anastigmatic two-mirror telescopes: some new types.

Abstract

A type of two-mirror telescope is described in which light leaving the secondary mirror is allowed to reflect off the primary mirror again before coming to the final focus. It is shown that this double bounce off the primary mirror results in a telescope that may be configured to be corrected for spherical aberration, coma, and astigmatism. In fact, there… (More)
DOI: 10.1364/AO.16.001178

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