Computer Science
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1527...26h&link_type=abstract
In: Current developments in optical design and optical engineering; Proceedings of the Meeting, San Diego, CA, July 21-23, 1991
Computer Science
Ground Tests, Hubble Space Telescope, Mirrors, Optical Equipment, Spaceborne Telescopes, Cameras, Computerized Simulation, Degrees Of Freedom, Focal Plane Devices, Solid State Devices
Scientific paper
Optical instruments designed for use with large telescopes need to be tested before being installed at their work site. This is especially true for space-based instruments. To perform these tests, an auxiliary optical system is required which simulates the telescope exit pupil. Two-mirror projection systems can be used for this purpose. In this paper the first-order geometric properties and third-order aberrations of the general two-mirror system used at finite conjugates are examined. Relations are given in terms of five design parameters: object distance, image distance, exit pupil size, and the two mirror magnifications. A particular application of these relations is presented for a system designed to simulate the HST, for ground testing of the next generation of scientific instruments to be installed in the observatory. We show that a sufficient number of degrees of freedom are available to meet requirements when both mirrors are conics.
Dávila Pam
Hannan Paul G.
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