Optical design of two-mirror widefield cameras for large telescopes

Details Optical design of two-mirror widefield cameras for large telescopes Optical design of two-mirror widefield cameras for large telescopes

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1945..443h&link_type=abstract

Proc. SPIE Vol. 1945, p. 443-452, Space Astronomical Telescopes and Instruments II, Pierre Y. Bely; James B. Breckinridge; Eds.

Astronomy and Astrophysics

Astronomy

Scientific paper

Many large optical telescopes have a wide field camera as one of their primary instruments. Camera designs with all reflective surfaces are useful because they give stable image quality over a broad spectral band. Systems with two conic mirrors can correct the residual aberrations, field curvature and astigmatism, of Ritchey-Chretien telescopes. We present first- and third-order optical design relations which can facilitate the formation of design concepts during preliminary trade studies. We apply the relations to the Hubble Space Telescope in the design of a new wide field camera which compensates the existing spherical aberration, as well as the astigmatism and field curvature, of the telescope.

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