NASA NTRS · 19870000387
Coma-Compensated Telescope With Vertex Chopping
Abstract
New design for chopped-infrared astronomical telescope reduces coma to increase image quality. Coma introduced by tilting cancelled by shaping of secondary mirror to introduce equal but opposite amount of coma independent of tilt angle. Because of this measure, telescope performance on axis remains limited mainly by diffraction.
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Macfarlane, Malcolm J.. 1987-09-01. Coma-Compensated Telescope With Vertex Chopping. https://ntrs.nasa.gov/citations/19870000387
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