Three-mirror aplanatic telescope with low diffraction sidelobes

Details Three-mirror aplanatic telescope with low diffraction sidelobes Three-mirror aplanatic telescope with low diffraction sidelobes

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apopt..32.4209g&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 32, no. 22, p. 4209-4211.

Physics

Optics

Diffraction, Optical Properties, Reflecting Telescopes, Sidelobe Reduction, Design Analysis, Mirrors

Scientific paper

A three-mirror rotationally symmetric telescope has been designed in which the secondary and tertiary mirrors are behind the primary. In this configuration the mounting structure of the secondaries need not interrupt the light path, thus avoiding the production of undesirable diffraction sidelobes. In a 1 deg total field of view the image blur circle is less than 3 arcmin. The design has application in the millimeter and submillimeter wavelength regions for problems in which low response to far-off-axis sources is critical.

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